[1]This application claims priority to an application for the Korea Patent Application No. 10-2017-0045416, filed on April 07, dated 2017, all information disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
[2]The present invention relates to a battery pack and vehicle containing relates to a battery pack and vehicle including the same and a battery module, and more particularly, it has improved stability and a battery module of an electrical connection between the electrode leads and the sensing terminals.
[3]
BACKGROUND
[4]
In recent years the demand for portable electronic products such as laptops, video cameras, portable telephones are rapidly increasing, the electric vehicle, energy as storage batteries, robots, and the full-fledged development of satellites for, repeated charging and discharging a high-performance rechargeable batteries the research has been going on actively.
[5]
As of commercially available secondary batteries are nickel-cadmium batteries, nickel hydrogen batteries, there are nickel-zinc batteries, lithium secondary batteries, etc., of which the lithium secondary battery is not to the memory effect hardly occurs as compared to a secondary battery of nickel-based free and can be charged and discharged, self-discharge rate was very low, the spotlight as a high energy density advantages.
[6]
The lithium secondary battery mainly uses a lithium-based oxide and carbon materials as an anode active material and the negative active material. The lithium secondary battery is provided with such a positive electrode active material and the negative electrode active material are respectively coated with the positive electrode plate and the negative electrode plate with a separator disposed between the electrode assembly and the casing for sealing the housing with the electrode assembly and an electrolyte, that is, the battery case.
[7]
Generally, lithium secondary batteries according to the shape of the casing, the electrode assembly may be classified as a pouch-shaped secondary cell with a can type secondary battery with an electrode assembly that is embedded in a metal can be incorporated in a pouch of an aluminum laminate sheet.
[8]
In recent years, as well as small equipment such as portable electronic devices, has become a widely used secondary batteries in the middle- or large-sized devices, such as automobiles and electric power storage device. In particular, As-carbon energy is depleted gradually increasing interest in the environment has become a high-profile focus on the worldwide hybrid cars and electric vehicles, including the United States, Europe, Japan and Korea. The central part in such a hybrid vehicle or the electric vehicle is a battery pack for imparting a driving force to the motor vehicle. The hybrid vehicle or electric vehicle situation where users are increasingly significant increases in the sense that it is possible to obtain a driving force of the vehicle through the charging and discharging of the battery pack, the excellent fuel economy as compared to only a vehicle using the engine can be reduced or not emit pollutants to be. Then, the battery pack of such a hybrid vehicle or an electric vehicle includes a plurality of secondary batteries, the large number of these secondary batteries are improved capacity and the output being connected to one another in series and in parallel.
[9]
On the other hand, a battery pack includes a battery pack, various protective devices, such as a BMS (Battery Managememt System) In addition to the secondary battery. Such protection devices, it is possible to perform a number of roles, such as to manage the charging and discharging of the battery pack and secure the safety. Such protection devices, may consider a number of factors to perform its function, it is typical of such factors can be called a voltage of each secondary battery. For example, certain protection devices may perform balancing to reduce the deviation between the state of charge may prevent overcharge to the over-discharge of the secondary battery through the both-end voltage value of each secondary battery, the secondary battery.
[10]
Thus, in carrying out a particular function of the protective device included in a battery pack, in such a secondary battery because it can be referred to each one for sensing the voltage of the secondary battery it is very important and essential, in the conventional battery pack contained in the battery pack, most of the configuration for detecting a voltage is applied.
[11]
1 is a view illustrating a conventional battery module, the sensing structure connected to the electrode lead and the receptacle.
[12]
1, the conventional battery module, and the bus bar (2) combined in a manner such as electrode lead 1 and the welding, by physical pressure to the bus bars (2) which is connected with the bus bar (2) by comprising a receptacle (3) constitutes the structure for sensing the voltage detection.
[13]
As described above, the receptacle 3 and the bus bar (2) by the structure which is coupled only by the pressure applied from a separate stabilizer receptacle (3) of the forceps forms without, due to the pressure and vibration exerted from the outside easily connected there are problems to be disconnected.
[14]
2 is a view illustrating a conventional battery module, the sensing structure using a printed circuit board.
[15]
2, the conventional battery module, the sensing structure using a conventional printed circuit board and soldering the bus bar (2) to solder (Solering) area (S) of the printed circuit board 4 to the pre-electrode lead (1 ) by fixing the like to the bus bar (2) a structure or welded constitute a sensing structure for the voltage detection.
[16]
As such a printed wiring conventional battery module of the sensing structure using the substrate 4 described above, the bus bar (2) has to use a printed circuit board (4) soldered to the dictionary, in the step of producing a battery module, the soldering process is added to the printed circuit board 4 and the bus bar (2), there is a problem that an error occurred in the voltage detection due to the frequent failure occurring in the soldering process.
[17]
3 is a view illustrating a conventional battery module, the sensing structure by clamping (Clamping) type bus bar.
[18]
3, the conventional battery module is electrically connected to the clamping-type bus bar 5 and the electrode lead (1) to weld the clamping-type bus bar 5 to the welding area (W) of the electrode lead (1) thereby, it constitutes a sensing structure for the voltage detection.
[19]
Then, by aligning the plurality of wires (6) extending from the end of the clamping-type bus bar 5 to the external battery module to prepare the battery module.
[20]
Conventional battery module of the sensing structure using such a clamping-type bus bar 5 has a plurality of wires (6) in the process of separately assembling the process and the battery module are welded to the clamping-type bus bar 5 and the electrode lead (1) as well as to additional process of aligning the outside because of the large number of wires (6), there is a problem that the energy density of the battery module decreases.
[21]
Detailed Description of the Invention
SUMMARY
[22]
An object of the present invention is to provide a battery pack and vehicle including the same and an improved stability of the battery module, an electrical connection between the electrode leads and the sensing terminals.
[23]
In addition, the present invention provides a battery pack including the same and the car and the battery module sensing terminal and the electrode lead are coupled to sense a voltage of the battery cell assembly process only through the pressure it is an object.
[24]
An object of the present invention are not limited to the purposes mentioned above, and this is not mentioned will be understood by the other objects and advantages of the following description of the invention, it will be more clearly understood by an embodiment of the invention. Also, the objects and advantages of the invention will be readily appreciated that this can be realized by the means as claimed and combinations thereof.
[25]
Problem solving means
[26]
The battery module according to the present invention for solving the technical problem is the plurality of battery cells having an electrode lead of a plate shape protruding to the front side is composed of a laminated in the vertical direction form the electrode lead is a horizontal direction between the adjacent electrode lead consists of a bent shape such that the face-to-face contact, the electrode lead is coupled to consist of cell assemblies, and an electrically conductive material which has a projection consisting of a form projecting forward from the front end and the projections are fitted sensing squeezing surrounding the protrusions It includes a sensing terminal module having a terminal mounting holes are not the terminals and the sensing terminal is seated.
[27]
Preferably, the cell assembly may comprise an adhesive member which is provided with adhesive between the electrode lead between the electrode lead in contact face-to-face.
[28]
Preferably, the binding material may be composed of an electrically conductive material.
[29]
Preferably, the binding material may be provided between the projections are bonded between adjacent protrusions.
[30]
Preferably, the protrusions may be less than the lateral width direction of the left and right width of the electrode lead.
[31]
Preferably, the sensing terminal may comprise a crimp terminal portion extending and protruding from both sides of the crimp surrounding the contact terminal and a contact terminal to be contacted is in close contact with the projection.
[32]
Preferably, the inside of the contact terminal has a pressing protrusion for pressing the surface of the protrusion can be formed.
[33]
Preferably, coupled to the side of the cell assembly of the lead electrode position may further include a cover for covering the sensing electrode leads.
[34]
Preferably, sensing the cover has a through-hole that the projections are inserted through the projecting direction of the projection may be formed.
[35]
Preferably, sensing the cover may be added to the module mounting is supported is a sensing terminal modules mounted on the other side opposite to the cell assembly formed.
[36]
The battery pack according to the present invention may include the battery module.
[37]
Vehicles according to the present invention may include the battery module.
[38]
Effects of the Invention
[39]
According to the invention, it is possible to improve the reliability of the electrical connection between the electrode leads and the sensing terminals.
[40]
In addition, the present invention by connecting the electrode lead and the sensing terminals only process by pressing without welding process and a soldering process, it is possible to simplify the manufacturing process of the battery module, and reduce the defect rate.
[41]
Brief Description of the Drawings
[42]
1 is a view illustrating a conventional battery module, the sensing structure connected to the electrode lead and the receptacle.
[43]
2 is a view illustrating a conventional battery module, the sensing structure using a printed circuit board.
[44]
3 is a view illustrating a conventional battery module, the sensing structure by clamping (Clamping) type bus bar.
[45]
Figure 4 is a perspective view of a portion of a battery module according to an embodiment of the present invention.
[46]
5 is an exploded perspective view of a portion of a battery module according to an embodiment of the present invention.
[47]
6 is a perspective view schematically illustrating a battery cell according to an embodiment of the present invention.
[48]
7 is a view illustrating, on an enlarged scale a portion A of FIG.
[49]
8 is an exploded perspective view of the sensing terminal module in accordance with one embodiment of the present invention.
[50]
Figure 9 is a cross-section of the sensing terminal coupled with the projection according to an embodiment of the present invention.
[51]
10 is a view showing a process of the engagement projection and the sensing terminals according to an embodiment of the present invention.
[52]
11 is a view showing a process of the engagement projection and the sensing terminal according to another embodiment of the present invention.
[53]
Figure 12 is a front view of the sensing terminal according to another embodiment.
[54]
Mode for the Invention
[55]
The foregoing object, features and advantages will be able to easily carry out self technical features of the present invention one of ordinary skill in the art are described later in detail with reference to the accompanying drawings, accordingly. If the detailed description of the known art related to the invention In the following description of the present invention that are determined to unnecessarily obscure the subject matter of the present invention, and detailed description thereof will not be given. It will be described in the following, a preferred embodiment according to the present invention with reference to the accompanying drawings, for example, in detail. Like reference numerals in the drawings it is used to refer to same or similar elements.
[56]
Figure 4 is a perspective view of a portion of a battery module according to an embodiment of the invention, Figure 5 is an exploded perspective view of a portion of a battery module according to an embodiment of the present invention.
[57]
4 and 5, a battery module 10 according to one embodiment of the present invention may include a cell assembly 100, the sensing cover 200, and the sensing terminal module 300.
[58]
The cell assembly 100 may include a battery cell (110).
[59]
Battery cells 110 may be provided with multiple pieces, each of the battery cells 110 may be stacked side by side in the vertical direction (± Y direction).
[60]
Type of battery cells 110 is not particularly limited and may be employed in the cell assembly 100 of the battery module 10 according to the present invention a variety of secondary batteries. For example, the battery cell 110, may be of a lithium ion battery, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries and so on. In particular, the battery cell 110 may be a lithium secondary battery.
[61]
On the other hand, the battery cell 110 may be divided into a pouch-shaped, cylindrical, square, etc., depending on the type of packaging material. In particular, the battery cell 110 in the battery module 10 according to the present invention may be a pouch-type secondary battery.
[62]
When the battery cell 110 is implemented as a pouch-shaped secondary battery, as shown in Fig. 4 and 5, each battery cell 110 is positioned to each other a large surface on the top and bottom, each battery cell 100, liver has a large surface can be configured to face each other. In this case, each of the battery cells 110 may be provided with an electrode lead adapted to be protruded in a horizontal direction (+ X axial direction).
[63]
Electrode leads can be of a positive electrode lead and negative electrode lead, a positive electrode lead is connected to the positive electrode plate of the electrode assembly, the negative electrode lead may be connected to the negative electrode plate of the electrode assembly.
[64]
In the following, referring to Fig. 6 and 7 and to be described in detail the structure of the electrode lead.
[65]
Figure 6 is a perspective view schematically illustrating a battery cell according to an embodiment of the present invention, Figure 7 is a diagram illustrating, on an enlarged scale a portion A of FIG.
[66]
6 and 7, the electrode lead 111 is composed of a plate shape may be projected in the horizontal direction (+ X axial direction). In particular, the electrode lead 111 is provided in the battery cell 110 may have a curved shape towards the electrode leads of the other battery cells are stacked in the upper layer or the lower layer. For example, in the configuration of Figs. 6 and 7, two electrode lead on the left side (-Z-axis direction) of the electrode lead 111 is provided at the two battery cells 110 stacked in the vertical (111a, 111b ) of the electrode lead (111a) which is located on the lower side is the horizontal direction (+ X-axis direction, the front) by projecting extension doedaga is bent in an upper direction (+ Y-axis direction, the + X-axis direction), again the horizontal direction (+ X It may be composed of a shape extending in the axial direction). In addition, bending the electrode leads (111b) is the horizontal direction (+ X axial direction) by doedaga extending projecting downward (-Y-axis direction, + X-axis direction) which is located on the upper side of the two electrode leads (111a, 111b) on the left and it may be configured to re-extend in the horizontal direction (+ X axial direction) form.
[67]
In this case, after bending of two adjacent electrode lead (111a, 111b) extending in a horizontal direction (+ X axial direction) Area (A 'portion in FIG. 7) can be mutually facing contact. Thereby, the plurality of battery cells 110 are electrically coupled to can form a cell assembly (100 in Fig. 4).
[68]
On the other hand, between adjacent A 'segment of the two electrode leads (111a, 111b) it may be provided with a joint member 115 for joining the electrode lead (111a, 111b). Here, the junction member 150 may be composed of an electrically conductive material to electrically connect the electrode lead (111a, 111b).
[69]
Through this, the bonding members 150 can prevent a short circuit between the electrode leads (111a, 111b) electrically by maintaining the connection be established, the electrode that is caused by an external impact or vibration, such as a lead (111a, 111b) between.
[70]
On the other hand, the front side end of the electrode lead 111 (the front end) may be formed with a projection 113 in the form of projecting forward horizontal direction (+ X axial direction). Projection 113 may be formed of the same thickness as the other portions of the electrode lead (111). That is, the overall electrode lead 111 and the protrusion 113 may be formed of the same thickness. In addition, the protrusion 113 may have a predetermined lateral width (W2). Here, the lateral width may be a means that, as measured in the ± Z-axis length.
[71]
More specifically, the lateral width (W2) of the protruding portion 113 may be less than the horizontal direction width (W1) of the electrode lead (111). Then, the protrusion 113 may be formed integrally with the electrode lead (111).
[72]
On the other hand, the protrusion 113 may be formed on both the up and down direction (± Y direction) are stacked in mutual coupling the two electrode leads 111. In this case, it can be a joining member 115 provided to the upper and lower directions (± Y-axis direction), two projections (113) which is located in. In addition, these joining members 115 can be joined between the adjacent laminated two projections (113). Accordingly, electrode lead joining members (111a, 111b) as well as the projections 113 through 115 may also be electrically connected. According to the thus-embodiment in such a configuration, the bonding members 115, so as to correspond to the shape of the electrode leads (111a, 111b) with a projection 113 formed on the front end side, of a type wherein a portion of the front end side is projected forward It can be.
[73]
These projections 113 can be fitted to the sensing terminals. And, these sensing terminals, may be provided in the sensing terminal module.
[74]
By doing so, the instability of being protrusions 113 of the electrode lead 111 according to the present invention is directly connected to the sensing terminal, an electrical connection to occur in the process of physically connected to the receptacle or a wire bar, the bus welded to electrode lead It can be blocked.
[75]
For the connection configuration between the protrusion 113 and the sensing terminal described above shall be described in detail in below.
[76]
4 and return to Figure 5 will be described for different configurations of the battery module 10.
[77]
The sensing cover 200 may include a hook 210, a through hole 230 and the module receiving part 250.
[78]
Sensing cover 200 by engaging one end and a hook fastener portion of a lead cartridge which is a hook 210 formed at the other end will be described later, it may be combined with the cell assembly (100). Here, the sensing cover 200 may cover the sides of the cell assembly 100, the electrode leads are formed.
[79]
That is, the sensing cover 200 is coupled to the cell assembly 100 to prevent the electrode leads and the lead cartridge 130 is exposed to the outside may cover the sides of the cell assembly (100).
[80]
The through hole 230 may be formed at a position corresponding to the position of the sensing cover 200 and the cell during assembly 100 is engaging projection 113. The
[81]
These through-holes 230 can be penetrated by the projection 113 in the projecting direction (+ X-axis direction) of the projecting portion 113. The Through this, the sensing cover 200 is a projection 113, through case binding to the cell assembly 100, through the through hole 230 may be protruded from the sensing cover 200.
[82]
Thereby, the protrusions 113 may be coupled to the sensing terminals by being protruded to the sensing terminals.
[83]
To this end, the depth of the through hole 230 may be shorter than the length of the protrusion 113. The
[84]
In addition, the number of the through-hole 230 may correspond to the number of the protrusions 113. The For example, as illustrated in Figure 5, as in the single cell assembly 100, the projection 113, the left and right directions (± X-axis direction) are two by two, upper and lower directions (± Y-axis direction) 7 may be provided to heat, of 14. In this case, the through-holes 230, corresponding to the number and arrangement of the projections 113, the second row 7 may be provided by one of 14.
[85]
On the other hand, the sensing cover 200 may be formed in the module mounting unit 250 is mounted is supported by the sensing terminal module 300 in the opposite direction opposite to the cell assembly 100. More particularly, the module receiving part 250 may be formed in the shape corresponding to the surface in contact with the sensing cover 200 and the coupling terminal when the sensing module 300 of the sensing terminal module 300.
[86]
Through this, the sensing terminal module 300 may be supported so as not departing from the sensing cover 200.
[87]
To this end, the outer periphery of the module receiving part 250 may be a guide groove (251) for sensing the terminal module 300, the guide movement of the sensing terminal module 300 when entering forming.
[88]
Onto More specifically, the outer periphery of the sensing terminal module 300, may be formed by a protrusion (310) protruding so as to correspond to the position of the guide groove 251, the sensing terminal module 300, the module receiving part 250 when the protrusion 310 may be inserted into the guide groove (251).
[89]
Then, the guide groove 251, it is possible to ensure that guide the movement of the insert protrusion 310, and to support the projecting portion 310, a sensing module receiving part 250, the terminal module 300 is smoothly seated .
[90]
Through this, the sensing terminal module 300 can be easily coupled only by the process that presses and then moved to the sensing cover 200 is fastened to the cell assembly 100 without a separate welding process.
[91]
Reference Next, a further 8 to 10 will be so described in detail for the sensing terminal module 300.
[92]
In Figure 8 is one embodiment of a sectional view of a sensing terminal coupled with the protrusion in accordance with one embodiment of the present an exploded perspective view of the sensing terminal module in accordance with one embodiment of the invention, the invention Figure 9 is present, Figure 10 is the invention according to a diagram showing a process of the engagement projection and the sensing terminals.
[93]
Sensing the terminal module 300, in addition to the protrusions 310 may further include a terminal mounting hole 330 and the sensing terminal (350).
[94]
Projections 310, as described above, the sensing terminal is formed to protrude on the outer periphery of the module 300, a sensing terminal module 300. In this case, binding to the module receiving part 250, the module receiving part 250, the guide of the groove is inserted in the 251 can move along the guide groove 251.
[95]
Further, the projecting portion 310 is supported from the guide groove 251, the guide groove 251 and then enters the end can be fixed to the sensing terminal module 300 to the module receiving part 250. The
[96]
On the other hand, the sensing terminal module 300 is a sensing terminal terminal mounting holes 330 are 350 are not secured to the opposite direction opposite to the sensing cover 200 can be formed. More specifically, the terminal mounting hole 330 may be a corresponding to the outer shape of the sensing terminal (350) and penetrating in the horizontal direction (± X-axis direction), the hole shape.
[97]
Terminal mounting holes 330 may urge the sensing terminal (350) is inserted is supported and mounted so that the sensing port (350) being separated by an external force sensing terminal 350, from the outside.
[98]
It from over, the sensing terminal when the inserting protrusions 113 formed on the end of the electrode lead (111) to (350), the projection sensing due to the pressure applied from the 113 terminal 350, the terminal mounting holes (330) it is possible to prevent the departure.
[99]
Sensing terminal 350 as illustrated in FIG 10 with a protrusion 113, the fitting can be electrically connected to the electrode lead (111).
[100]
Since this sensing terminal 350 is configured to sense a voltage of the battery cell 110, elements in direct contact with the projection 113 formed integrally with the electrode lead 111, the electrical conductivity of a metal such as aluminum or copper, It may be of a material.
[101]
On the other hand, the sensing terminal 350 is extended from both sides of the contact terminal portion 351, a contact terminal 351 to be contacted is in close contact with the protrusions 113 comprise a crimp terminal (353) to crimp surrounding the protrusion 113 can.
[102]
Contact terminal 351 has a flat plate form and may be combined, with a protrusion 113 contacts the lower portion of the contact terminal 351 of the plate.
[103]
At this time, the inner surface of the contact terminal 351, there can be formed a pressing projection (351a) and increase the bonding force between the fixing force by pressing the protrusion 113, the sensing terminal 350 and the projection 113. The
[104]
On the other hand, pressing the terminal 353 may include a first crimp terminal portion (353a) and a second crimping terminal (353b) for pressing while enclosing the opposite sides of the projection 113, respectively, as illustrated in FIG. That is, the first crimping terminal (353a) and a second crimp terminal portion (353b) extends from both sides of the contact terminal 351 and the crimp surrounding the sides of projections 113, respectively, and thus strengthen the projecting portion 113 than it can be compressed to be fixed.
[105]
Specifically, a first crimping terminal (353a) and a second crimping terminal (353b) may be configured to form the bent downward from both sides of the contact terminal. And, through such bent configuration, the first crimping terminal (353a) and a second crimping terminal (353b), may have an elasticity. Further, the first crimp terminal portion (353a) and a second crimping terminal (353b) is, by making the protrusion 113 lies between the contact terminal 351, it is possible to press the lower part of the protrusion 113 in the upward direction .
[106]
Through this, the sensing terminal 350 can increase the bonding force and fixing force between the projection 113 through a crimp terminal (353) to crimp surrounding the projecting portion 113, in particular a separate equipment, for example do not need the welding work efficiency to be increased.
[107]
That is, the sensing terminal 350 according to the present invention can be fixed are pressed by the pressing protrusion 351 is formed on and in contact with a protrusion 113 is in close contact with the contact terminal portion 351, a contact terminal (351). Further, in the lower part of the protrusion 113 of the first crimping terminal (353a) and a second crimp extends from the contact terminal 351, terminal portion (353b) is pressed by to firmly secure the protrusion 113 to the sensing terminals 350 can.
[108]
4 and return to Figure 5 will be described for different configurations of the cell assembly.
[109]
4 If and 5, the cell assembly 100 may further include a lead cartridge 130.
[110]
Lead cartridge 130 serves to physically block the electrical connection between the electrode leads are not designed, it is possible to accommodate the electrode lead electrically connected to the individual in accordance with the design. For this purpose, the inside of the lead cartridge 130 may be a space that can be separately received in the electrode lead electrically connected to form a plurality.
[111]
In addition, the lead cartridge 130 can be perforated in a horizontal direction (± X-axis direction) so as to project to the outside shape of the electrode projection 113 is inserted into the read and described above. The internal Accordingly, the lead cartridge 130, the battery cell 110 processes the projection 113 is inserted into the inner side in the coupled and can be projected to the outer surface, the two electrode leads are lead cartridge 130 is in contact face-to-face It can be accommodated in the space.
[112]
Through this, the lead cartridge 130 may prevent contact between the unintended electrode lead and prevent damage to the electrode lead that can be caused by external force.
[113]
On the other hand, the one end and the other end has a hook fastener 131 is fastened the hook 210 of the sensing cover 200, which will be described later, each of the lead cartridge 130 can be formed.
[114]
The hook connection part 131 are as a step in the cell assembly 100 and sensing cover 200 is a fastening direction (-X axis direction) in the opposite direction (+ X-axis direction) end of the hooks when gyeophap 210, hook securing the (210) and can be coupled to sensing cover 200 is associated with the hook 210 and the cell assembly (100).
[115]
This cell assembly 100 and sensing cover 200 can be easily coupled only by the process that presses the sensing cover 200 in a tightening direction (-X axis direction).
[116]
Hereinafter to describe the configuration of the coupling projection and the sensing terminal according to another embodiment of the present invention.
[117]
11 is a view showing a process in which a projection and a sensing terminal coupled according to another embodiment of the present invention, Figure 12 is a cross-sectional view of a sensing terminal coupled with the projection according to another embodiment.
[118]
11 and 12, projections 113 'according to another embodiment of the present invention and a sensing terminal (350') has previously described the exemplary projecting portion (113 5) and the sensing according to the embodiment of the present invention. not described the coupling structure of the terminals (350 in Fig. 5) and the roles, and other configurations are the same as or similar to it over and will be described with the focus on the differences.
[119]
Projection 113 'has a horizontal direction (+ X-axis direction) is formed in a shape protruding, in one embodiment the protrusions (Fig. 5 113) according to the example from the end of the electrode lead 111 in accordance with another embodiment of the present invention and electrode lateral width (W3) of the lead 111 may be equal to the lateral width (W1) of the electrode lead (111).
[120]
That is, the protrusion 113 'in accordance with another embodiment maintains the same width from the end of the electrode lead 111, and can be formed in a shape protruding in the horizontal direction (+ direction). Accordingly, the bonding force between the projection 113 'is one embodiment protrusions sensing terminal (350, (113 in Fig. 5) than according to the "if possible, in contact with) the surface area is increased sensing terminal 350' according to another embodiment and the reliability of electric connection can be improved.
[121]
On the other hand, can be joined member (115 ') also projecting portion (113' corresponding to the lateral width (W3) of a), is applied as a whole in between the projections (113 projections 113 'and the bonding physically a) electrically connected to .
[122]
On the other hand, the sensing terminal (350 ') has protrusions (113' contact terminal (351 ') and the crimping terminal portion (353') formed in the left-right direction width (W4) corresponding to the lateral width (W3) of a) according to another embodiment It may contain.
[123]
As described above, the "projecting portion (113 of fitting the electrode lead 111 in) sensing terminal 350 'may be coupled to surface contact with the contact terminal (351'). At this time, the contact terminal (351 ') lateral width (W4) of the protrusion (113' may be formed by the same or longer than a predetermined length and a lateral width (W3) of a).
[124]
With such a configuration of the present invention, the projection 113 'according to another embodiment it is formed wider one embodiment the projections (113 in Fig. 5) long and less than the width, the area of ​​the sensing terminal (350' in more) stable can be mounted and supported. Therefore, in this case, is located between the electrode lead 111 and the sensing terminal (350 '), the mechanical support and electrical connection characteristics can be more stable.
[125]
On the other hand, the projection according to an embodiment of the present invention may be of multiple pieces. More specifically, the projection according to an embodiment of the present invention is spaced apart from the end of the electrode lead may be formed of a plurality of plate-shaped extruded in a horizontal direction (+ X axial direction). For example, if the projection according to a further embodiment of the invention consisting of three, projections one end, the other end portion and a central portion spaced apart from each other the form of a first projection, projecting the second from each of the second protruding portion of the electrode leads, and the may be composed of a third projection.
[126]
Through this, the projection according to an embodiment of the present invention 'is formed only from the point of receiving the binding force, the sensing terminals (350 sensing terminal 350' has a bonding force and fixing force between the) can be improved.
[127]
On the other hand, the 11 and contact terminal according to the embodiment of FIG. 12 (351 '), the protrusions (113 in the inner surface, forming a plurality of pressing projections (351'a) corresponding to the lateral width (W3) of a) It is possible to improve the bonding force and fixing force between the "by pressing the sensing terminals (350, projections 113 ') and the projections 113'.
[128]
These 11 and sensing in accordance with another embodiment of the Figure 12 terminal 350 'also, the contact terminal portion (351' 'crimp terminal (353 compressing surrounding a) further comprises a extending from both sides of) and protrusions 113' can do.
[129]
Crimping terminal portion (353 ') is a contact terminal (351' first crimp terminal portion (353'a) and a second crimping terminal (353'b extending from either side of) and surrounding the compression side of the projection (113 '), respectively ) may include.
[130]
First crimp terminal portion (353'a) and a second crimp terminal portion (353'b) according to an embodiment corresponding to the lateral width (W3) of "the end for pressing the projection (113 projection 113 ') It may be formed of an elongated form.
[131]
That is, the first crimp terminal portion (353'a) and a second crimp terminal portion (353'b) is an end portion in order to firmly crimp the width and the width is long and wide, each protrusion (113 '), each projection in accordance with such embodiment ( 'it is elongated to near the center of the projections 113, 113 can be squeezed). In this case, the first crimp terminal portion (353'a) and a second crimp terminal portion (353'b), the contact terminal (351 ') is bent at both sides of the projections (113 in the bending portion and bending portion each consisting of a curved shape, ) flat may be of a type having portions formed near the center direction, i.e., extending even to the inside direction.
[132]
This may be a sensing terminal (351 ') and a projection (113') are coupled to each other face-to-face contact with a large area and being electrically connected to, increase the reliability of the electrical connection as well as the physical stability of the coupling.
[133]
On the other hand, the battery pack according to the present invention includes one or more of the above-described battery module. At this time, the battery pack may be further included in addition to a battery module, a case for accommodating this battery module, a variety of apparatus for controlling charging and discharging of the battery module, such as a BMS (Battery Management System), a current sensor, a fuse or the like. In particular, the battery pack according to an embodiment of the present invention, the BMS sensing terminal and the connection terminal secured to the sensing module terminals of the battery modules are electrically connected to may be connected.
[134]
The battery module according to the present invention can be applied to vehicles, such as electric or hybrid vehicle. That is, the vehicle according to the present invention, may include a battery module according to the present invention.
[135]
The present invention described above is carried out by the present invention it to those of ordinary skill, in which so many possible changes and modifications may be made without departing from the scope of the present invention above-described example and the attached drawings in it not limited by.

Claims

[Claim 1]The plurality of battery cells having an electrode lead of a plate shape protruding to the front side is composed of a laminated in the vertical direction form the electrode lead is made up of a bent form so as to contact face-to-face in the horizontal direction between adjacent electrode lead, the electrode lead is made up of cell assemblies, and an electrically conductive material which has a projection consisting of a form projecting forward from the front end, and the said protrusions are coupled fitting which is supported the sensing port and the sensing terminals to crimp surrounding the projecting portion is seated a battery module including a sensing terminal module including a terminal mounting hole.
[Claim 2]
The method of claim 1, wherein the cell assembly comprises a binding material, said binding material which is provided with adhesion between the electrode lead between said face-to-face contact with the electrode leads of the battery module composed of an electrically conductive material.
[Claim 3]
The method of claim 2, wherein the adhesive member is provided between adjacent protrusions battery module for bonding between the projections.
[Claim 4]
The method of claim 1, wherein the projection has a lateral width lateral width than the battery module of the electrode lead.
[Claim 5]
The method of claim 1, wherein the sensing terminals of the battery module including a terminal portion extending compression and compression surrounding the projecting portion from both sides of the contact terminal and the contact terminal to be contacted is in close contact with the projecting portion.
[Claim 6]
The method of claim 5, wherein the battery module has an internal terminal portion of the contact projection is pressed to press the surface of the projection formed.
[Claim 7]
According to claim 1, coupled to a side of the cell assembly of the electrode lead is located and the battery module further comprises a cover covering the sensing electrode leads.
[Claim 8]
The method of claim 7, wherein the sensing module through the battery cover is in the projecting direction of the projection having a through hole, into which the protrusion is inserted.
[Claim 9]
The method of claim 7, wherein the sensing cover the cell assembly and the opposite side of the sensing terminal modules are mounted is supported by the module battery module mounting portion formed on the other side.
[Claim 10]
The first battery pack including a battery module according to any one of the preceding claims 9.
[Claim 11]
FAW including a battery module according to any one of the preceding claims 9.