[1]The present invention relates to a car comprising the battery pack and a battery pack comprising such battery module, and these battery modules.
[2]This application claims priority to an application for the Korea Patent Application No. 10-2017-0076764, filed as 16 June 2017, all the contents disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
BACKGROUND
[3]
High application ease according to the product line, high secondary battery that has an electrical characteristic, such as the energy density of the electric vehicle driven by an electric drive source, as well as a portable device (EV, Electric Vehicle), a hybrid vehicle (HEV, Hybrid Electric Vehicle) or there are universal applications such as golf (Golf Cart). These rechargeable batteries are not only the primary advantage of being able to reduce the use of fossil fuels dramatically attracting attention as a new energy source for environmentally friendly and energy efficiency in that the by-products of the use of energy does not occur at all.
[4]
Type of secondary battery is now widely used, there are lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries. Operating voltage of this unit secondary battery cells, that is, the unit battery cell is about 2.5V ~ 4.6V. Thus, more than if the required high output voltage by connecting a plurality of battery cells in series and also configure the battery pack. In addition, the parallel connection of a plurality of battery cells in accordance with the charge-discharge capacity required for the battery pack, and also configure the battery pack. Therefore, the number of battery cells included in the battery pack may be variously set according to the output voltage required, or charge-discharge capacity.
[5]
On the other hand, if you want to configure the battery pack by connecting a plurality of battery cells in series / parallel, and at least one of the battery cells constituting the formed battery module first, and this at least one of the battery pack is added to the other components using a battery module this is a general method to configure.
[6]
A conventional battery module, in general, is configured to include a module case for accommodating the plurality of battery cells and a plurality of battery cells are mutually electrically connected. Here, the mutual electrical connection between a plurality of battery cells is made by welding, this welding is performed after laminating the electrode lead of each battery cell with several layers. If you look in more detail, some of the electrode leads, which are mutually stacked for welding is disposed within the module housing, and the remaining portions are exposed outside the module case to the weld. Accordingly, in the conventional battery modules, the space portion is disposed is required of the electrode leads, which are mutually stacked for welding within the module case.
[7]
However, the space is disposed a portion of the electrode lead is because dead space, irrelevant to the energy density of the battery cell, there is a problem that acts as a degradation factor of the total floor area ratio battery module.
Detailed Description of the Invention
SUMMARY
[8]
Accordingly, it is an object of the present invention is to provide a car including the battery pack, and this battery pack to minimize the dead space that may occur in electrical connection between the electrode leads of the battery cell, a battery module, including such a battery module.
[9]
In addition, another object of the present invention is to provide a car including the pack battery, and this battery pack including the battery module, such a battery module that can enhance the energy density increases the hematocrit.
Problem solving means
[10]
In order to solve the above object, the present invention, at least one battery cell is a battery module, an electrode lead protrudes to both sides; And at least one of the cell case having the at least one cover both sides and the upper side of the battery cell, and one end thereof is connected to the electrode lead the other end a pair of bus bars are exposed on the upper side; comprising the It provides a battery module.
[11]
The at least one battery cell, the electrode assembly; A battery case to the case body for accommodating the electrode assembly, a case terrace extending from said case body; And the electrode lead protruding from both sides of the case terrace; includes, the cell case may be, cover the upper side of the terrace, the two sides of the case and the battery case.
[12]
The cell case includes a first case frame and the second case frame to cover both sides of the case terrace; And a cover to an upper portion of the battery case, the third case frame connecting the first frame case and the second case frame; may include.
[13]
The bus bar of the pair, the first case frame and a first bus 3 is secured to the case frame, connected to the electrode lead bar; And the second is mounted on the case frame and the third frame case, the second bus bar being connected to the electrode lead; may include.
[14]
The first case frame and the second frame case, the bus for the seating of the respective busbars bar receiving groove; there can be formed.
[15]
The bus bar of the pair, respectively, the main body plate to be mounted on the bus bar receiving recess; One extending from the portion, a lead connecting portion which is welded to the electrode leads of the main body plate; And extends from the other end of the main plate, the upper exposed portion which is seated in the third case frame, may include a.
[16]
The lead connecting portion is formed offset from the main body plate, when mounted to the bus bar receiving recess of the main body plate may be placed in contact with the electrode leads.
[17]
The battery cells are stacked and cross-pieces are provided with a plurality, wherein the cell case is equipped with multiple pieces, may be cross-laminated and fixed to each battery cell.
[18]
The battery module for at least one of the fixed beam which is mounted through the plurality of the cell case in order to secure the plurality of cell cases; may contain.
[19]
The battery module comprises a top cover which covers an upper side of the plurality of cell cases, and is formed in the bus bar exposure opening for exposing the other end of the plurality of bus bars; may include.
[20]
The battery module comprises at least one bus bar connecting member connected to the bus bars in series or parallel to be exposed through the top cover; may include.
[21]
The battery module, a cover for the lower side of the plurality of cell cases, and the bottom cover supporting a plurality of cell cases; may include.
[22]
The battery module includes a heat conducting member that is provided between the cell case and a plurality of the bottom cover; may include.
[23]
The present invention provides a battery pack, comprising: at least one battery module according to the embodiments described above; And a pack case for packaging the at least one battery module, and provides a battery pack comprising: a.
[24]
In addition, the present invention, at least one battery pack according to the embodiment described above as an automobile, eg, to provide a car characterized in that it comprises a.
Effects of the Invention
[25]
According to various embodiments as described above, to minimize the dead space that may occur in electrical connection between the electrode leads of the battery cell, a battery module, a battery comprising such battery module packs, and to provide a car comprising such a battery pack can.
[26]
In addition, it is possible to provide a car including the pack battery, and this battery pack including the battery module, the battery module such that, to improve the energy density and increase the floor area ratio in accordance with various embodiments of the present invention.
Brief Description of the Drawings
[27]
Intended to illustrate the following figures attached to the specification are exemplary of the invention, the components which serve to further understand the spirit of the invention and together with the description of which will be described later invention, the details of this invention is described in such figures be construed as limited only is not.
[28]
1 is a view illustrating a battery module according to an embodiment of the present invention.
[29]
Figure 2 is an exploded perspective view of the battery module of Figure 1;
[30]
Figure 3 is a view illustrating a battery cell of the battery module of Figure 2;
[31]
Figure 4 is a view for explaining a cell case of the battery module of Figure 2;
[32]
Figures 5 to 8 are views for explaining the assembly of the battery cell and the cell case of the battery module of Figure 2;
[33]
9 is a view illustrating a battery module according to another embodiment of the present invention.
[34]
10 is a view illustrating a battery pack according to an embodiment of the present invention.
Mode for the Invention
[35]
The invention will be more apparent by describing in detail a preferred embodiment of the present invention with reference to the accompanying drawings. Embodiment described herein examples are illustrative as shown for better understanding of the invention, the invention is to be understood that the same may be practiced with different embodiments and various modifications described herein. Further, the appended drawings are not illustrated to scale it can be shown to be the dimensions of some of the components exaggerated for a better understanding of the invention.
[36]
1 is a view illustrating a battery module according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the battery module of Figure 1, Figure 3 is a view illustrating a battery cell of the battery module of Figure 2 , Figure 4 is a view for explaining a cell case of the battery module of Figure 2;
[37]
Referring to Figure 1 to Figure 4, the battery module 10, the battery cell 100, the cell case 200, a beam 300 is fixed, the top cover 400, bottom cover 500, the heat transfer member ( 600) and the bus bar may include a connecting member 700.
[38]
The battery cell 100 may be provided with a secondary battery, a pouch type secondary battery. Such the battery cell 100 can be mutually stacked are provided a plurality pieces, can be connected to each other electrically.
[39]
The plurality of battery cells 100, respectively, may include an electrode assembly 110, a battery case 130 and the electrode lead (150).
[40]
The electrode assembly 110 may be of a positive electrode plate, negative electrode plate and a separator or the like. Are well known for the electrode assembly 110, it will now be described in detail here.
[41]
The battery case 130, and can be made of a laminate sheet including a resin layer and a metal layer, it is possible to package the electrode assembly 110. Such a battery case 130, may include a case body 132 and the case terrace 136. The
[42]
The case body 132 may accommodate the electrode assembly 110. To this end, the case body 132 may be a receiving space is formed to accommodate the electrode assembly (110). The case terrace 136 may be extend from the case body 132, a sealing process able to package the electrode assembly 110.
[43]
The electrode lead 150 is provided with a pair of electrode leads of the pair 150 can be made of each of the positive electrode lead and negative electrode lead. Such the electrode lead of the pair 150 is in at least one side, particularly in the case terrace 136 of the electrode assembly 110 and is electrically connected to the battery case 130, the case terrace 136 either side can be projected out.
[44]
The cell case 200 may cover both sides and the upper side of the at least one battery cell (100). Specifically, the cell case 200 may be provided in plural number, each cell case 200 may cover both sides and the upper side of each of the battery cells 100. Specifically, each cell case 200 may cover the upper side of the two sides and the battery case 130 of the case terrace 136. The Those of the plurality of the cell case 200, and may be cross-laminated and fixed to each of the battery cells 100.
[45]
The plurality of the cell case 200, respectively, include a first case frame 210, a second case frame 230, a third case frame 250 and a pair of bus bars (270, 280) can.
[46]
The first frame case 210 may cover either one side of both sides of the terrace case 136 of the battery cell 100. The first frame case 210, there can be formed a bus bar receiving recess 212 for seating of the first bus bar 270 to be described later.
[47]
The second case frame 230 may cover the one other of the both sides of the terrace case 136 of the battery cell 100. This second case frame 230, there can be formed a bus bar receiving recess 232 for seating the second bus bar 280 to be described later.
[48]
The third case frame 250 may be formed to extend by a predetermined length, connecting the said first case frame 210 and the second case frame 230, and covers an upper side of the battery case (130).
[49]
Bus bars of the pair (270, 280) are as for electrical connection between the electrode leads 150 of the battery cell 100, one end 274 is connected to the electrode lead 150, the other end ( 276) can be exposed to the upper side of the cell case 200.
[50]
Specifically, the bus bars of the pair (270, 280) can be provided as a first bus bar 270 and the second bus bar (280).
[51]
The first bus bar 270 of the first case frame 210 and the third case is secured to the frame 250, projecting either side of the two sides of the case terrace 136 of the battery cell 100, can be connected to the electrode lead 150. the
[52]
The first bus bar 270 may include a main body plate 272, a lead connection portion (274, see FIG. 7) and the upper exposed portion (276).
[53]
The body plate 272 may be provided with a metallic material, it may be mounted on the bus bar receiving recess 212 of the first case frame 210.
[54]
The lead connecting portion 274 extends from one end of the main body plate 272, may be electrically connected through a lead, etc. The electrode 150 and the weld. Specifically, the lead connection portion 274 is formed offset from the main body plate 272, electrode lead 150, which is disposed at the rear when mounted to the bus bar receiving recess 212 of the main body plate 272, and can be arranged in contact, and may be connected to a later, the contact electrode lead 150 and the welding and the like.
[55]
The upper exposed portion 276 extends from the other end of the main body plate 272, it may be mounted to the third case frame 250. The upper exposed portion 276 may be connected to below the bus bar connecting member 700 and electrically.
[56]
The second bus bar 280 and the second case frame 230 and the third case is secured to the frame 250, and protrudes the other of the two sides of the case terrace 136 of the battery cell 100, a side can be connected to the electrode lead 150. the
[57]
This second bus bar 280 may include, as in the first bus bar 270, the body plate 282, a lead connection portion 284 and the upper exposed portion (286).
[58]
The body plate 282, and also, the first may be provided a metal material as the main body plate 272 of the first bus bar 270, the second case the bus bar receiving recess (232 of the frame 230, ) it may be seated in.
[59]
The lead connecting portion 284 extends from one end of the main body plate 282, may be electrically connected through a lead, etc. The electrode 150 and the weld. Specifically, the lead connection portion 284 is formed offset from the main body plate 282, electrode lead 150, which is disposed at the rear when mounted to the bus bar receiving recess 232 of the main body plate 282, and can be arranged in contact, and may be connected to a later, the contact electrode lead 150 and the welding and the like.
[60]
The upper exposed portion 286 extends from the other end of the main body plate 282, it may be mounted to the third case frame 250. The upper exposed portion 286 may be connected to the connecting member 700 to be described later and a bus bar electrically.
[61]
For the fixed beam 300 may be mounted through the plurality of the cell case 200 to fix the plurality of cells of the case 200. Such the fixed beam 300 may be provided for the plural number to the plurality of cell cases in 200 enhance fixation between each other.
[62]
The top cover 400 may cover the upper side of the plurality of cells of case 200. Such a top cover 400, there is formed a bus bar exposure opening 420 for exposing the other ends (276, 286), that is, the upper exposed portions (276, 286) of said plurality of bus bars (270, 280) can.
[63]
The bottom cover 500 includes a plurality of cell cases in 200, the lower side and a cover for the lower side of the plurality of battery cells 100, the plurality of the cell case 200 and the plurality of battery cells (100 ) it can be supported.
[64]
The heat transfer member 600 is to be provided between the plurality of cell cases in 200 and the bottom cover 500, the quick transfer than the heat of the plurality of battery cells 100 in the side of the bottom cover 500 can.
[65]
The bus bar connecting member 700 may be electrically connected to the bus bars (270, 280) that is exposed through the top cover 400. In the present embodiment, the bus bar connecting member 700 may be provided for parallel connection.
[66]
Accordingly, the bus bar connecting member 700 is provided as a pair, one of the bus bar connecting member 700 is the first interconnect of the bus bars 270 and the other one of the bus bar connecting member (700 ) may be interconnected with the second bus bars (280).
[67]
In the following, see than a closer look at these assembly steps of the battery module 10 according to this embodiment.
[68]
Figures 5 to 8 are views for explaining the assembly of the battery cell and the cell case of the battery module of Figure 2;
[69]
5 and 6, the operator and the like, after disposing the cell case 200 to the front of the battery cells 100 may be interconnected to the battery cell 100 and the cell case 200 . In this case, the first frame case 210 and the second frame case 230 of the cell case 200 may cover the case terrace 136 of the front sides of the battery cells 100.
[70]
Accordingly, the battery cell 100 can implement a rectangular screen through a mutual engagement with the cell case 200. That is, as well as that itgie the battery cell 100 can be implemented even when provided to the pouch type secondary battery through engagement with the cell case 200 to the rectangular form, to implement a higher hematocrit than in a plurality of cross-laminated it may be advantageous in terms of automation and shared use of parts assembly process.
[71]
7 and 8, after the operator and the like, the first case frame secured to 210 the first bus bar 270, the lead connection portion 274 and the lead connecting portion 274 at the rear of a lead electrode 150 disposed in contact with the lead connection portion 274 can be coupled to the welding such as laser welding.
[72]
The battery cell 100 and the cell case, in accordance with the connection 200, the electrode lead 150 is naturally the first bus bar to the lead connection portion 274 of the lead connection portion 274 at the rear of the 270 and in making contact, the welding process can be performed more ganpyeonhi.
[73]
The worker and the like and the second case frame welded engagement with the second bus bar 280 and the electrode lead 150 that is secured to the unit 230 can also perform in a similar manner.
[74]
Next, the worker, etc. The bus bar connecting member 700 and the bus bars on the upper side, and then the the cell case 200 in which plural number, laminating of said cell case 200 coupled to the battery cell 100 ( of 270 and 280) it can be electrically connected.
[75]
Thus, in this embodiment, the electrical connection between the cell case 200, the bus bar connecting member 700 through the upper exposed portions (276, 286) of said bus bars (270, 280) exposed on the upper side of It can be carried out more than ganpyeonhi at the upper side of the battery module 10.
[76]
Further, in this embodiment, is connected to the cell case (200) bus bars (270, 280), one end of said case terrace 136 forward the electrode lead 150 in the battery cell 100 in which is mounted a the other end of the battery module 10, the bus bar electrode leads (150) interconnected between a connecting member, to be connected with the 700 battery cells 100 in the upper side toward the upper side of the battery module 10 for eliminating the need for bending the required area of ​​the release there is a dead space generated in said battery module 10 can be minimized.
[77]
Thus, the electrodes of the battery module 10 includes the battery cells 100 through the bus bars (270, 280) incorporated into the cell case 200 and the cell case 200 includes the when electrical connection of the leads 150, it is possible to minimize the dead space that may occur.
[78]
Accordingly, the battery module 10 according to this embodiment it is possible to be higher than the floor area ratio of the battery module 10, further improve the energy density of the battery module 10.
[79]
9 is a view illustrating a battery module according to another embodiment of the present invention.
[80]
The battery module 20 according to this embodiment looks at the focus on the differences from the foregoing embodiment of the battery module 10 in the foregoing embodiment, hereinafter, the similar to the example.
[81]
Referring to Figure 9, the battery module 20, may be connected in series, unlike the previous embodiment. To this end, the battery module 20 may include a bus bar connecting member (800) for series connection.
[82]
The bus bar connecting member 800 is formed to extend to a predetermined length, it may be provided in plural pieces. The plurality of bus bars connecting member 800 may be interconnected to the first bus bar 270 and the second bus bar (280) corresponding to a series connection.
[83]
Thus, the battery module 20 can be connected in series, unlike the previous embodiment, and these serial connections also of the cell case of the plurality of (200) the plurality of the cell case 200 be made more easily from the upper side through the can.
[84]
10 is a view illustrating a battery pack according to an embodiment of the present invention.
[85]
10, the battery pack 1, can include at least one battery module 10 and the battery pack case 50 for packaging the at least one battery module 10 of the previous embodiment. In addition, the battery pack 1, can be possible to example includes at least one battery module 20, the foregoing embodiment.
[86]
As such the battery pack (1) is source of motor fuel, it may be provided in the car. By way of example, the battery pack 1 can be provided in the car for any other method that can be used for an electric vehicle, hybrid vehicle and the other battery pack (1) as a fuel source. In addition, the battery pack (1) can also be provided or the like, such as also any other device or apparatus and equipment power storage device (Energy Storage System) using a secondary battery in addition to the motor vehicle. FIG.
[87]
Thus, the bar, the above-described battery module including the battery pack 1 and the battery pack (1) device or apparatus and equipment described above the battery modules 10 having the same with the vehicle according to the embodiment It may implement a 10 cars including a battery pack 1, and this battery pack (1) having all of the benefits due to the device or apparatus and equipment.
[88]
And later, although shown and described with respect to preferred embodiments of the invention, the invention is not limited to the embodiments of the described, conventional in the art the art without departing from the subject matter of the present invention invention claimed in the claims It is capable of many variations performed by a person having knowledge of course, and this modified embodiment, will be not dwaeseo individually understood from the technical spirit or prospect of the present invention.

Claims

[Claim 1]At least one battery cell that is in the battery module, an electrode lead protrudes to both sides; And at least one of the cell case having the at least one cover both sides and the upper side of the battery cell, and one end thereof is connected to the electrode lead the other end a pair of bus bars are exposed on the upper side; comprising the The battery module.
[Claim 2]
The method of claim 1, wherein the at least one battery cell, the electrode assembly; A battery case to the case body for accommodating the electrode assembly, a case terrace extending from said case body; And the electrode lead protruding from both sides of the case terrace; includes, the cell case, battery modules, characterized in that for covering the upper side of the two sides of the case and the battery case terrace.
[Claim 3]
The method of claim 2, wherein the cell case comprises a first case frame and the second case frame to cover both sides of the case terrace; And third case a frame and cover the upper side of the battery case, connecting the first case frame and the second frame case; battery module comprising: a.
[Claim 4]
The method of claim 3, wherein the bus bar of the pair, the first case frame and a first bus 3 is secured to the case frame, connected to the electrode lead bar; And the second case frame and the third frame is secured to the case, a second bus bar connected to the electrode lead; battery module comprising: a.
[Claim 5]
According to claim 3, wherein the first case frame and the second frame case, the bus bar receiving groove for seating of the respective bus bars on; battery module is characterized in that formation.
[Claim 6]
The method of claim 5, wherein the bus bar of the pair, respectively, the main body plate to be mounted on the bus bar receiving recess; One extending from the portion, a lead connecting portion which is welded to the electrode leads of the main body plate; The battery module comprises a; and the upper exposed portion which extends from the other end of the main body plate, mounted on the third case frame.
[Claim 7]
The method of claim 6, wherein the lead connecting portion, the body plate is formed offset from, a battery module that is arranged in contact with the seating of the electrode lead to the bus bar receiving recess of the main body plate.
[Claim 8]
The method of claim 1, wherein the battery cell is equipped with a plurality pieces are mutually stacked, wherein the cell case is equipped with multiple pieces, each battery module, characterized in that the cross-laminate, while fixing the battery cell.
[Claim 9]
The method of claim 8, wherein for at least one of the fixed beam which is mounted through the plurality of the cell case in order to secure the plurality of cell cases; battery module comprising: a.
[Claim 10]
The battery module comprises a; according to claim 8, wherein a top cover which covers an upper side of the plurality of cell cases, and is formed in the bus bar exposure opening for exposing the other end of the plurality of bus bars.
[Claim 11]
Claim 10 wherein the at least one bus bar connecting member connected to the bus bars in series or parallel to be exposed through the top cover; battery module comprising: a.
[Claim 12]
The method of claim 8, wherein the lower cover of the plurality of cell cases, the bottom cover supporting a plurality of cell cases; battery module comprising: a.
[Claim 13]
The method of claim 12, wherein the heat transfer member is provided between the cell case and a plurality of the bottom cover; battery module comprising: a.
[Claim 14]
At least one battery module according to claim 1; And a pack case for packaging the at least one battery module, the battery pack comprising: a.
[Claim 15]
At least one battery pack according to claim 14; car comprising a.