Art
[1]This application claims priority to an application for the Korea Patent Application No. 10-2017-0101854, filed on Aug. 10, dated 2017, all information disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
[2]
To the invention, and, more particularly, a method of, even if the cell thickness of the battery cell thin to ensure the welding pitch between the electrode lead battery module and a battery module manufactured relates to a method of manufacturing a battery module and a battery module, It relates.
BACKGROUND
[3]
Technology and the secondary battery demand as an energy source that has been rapidly increased as the demand increases, but the nickel-cadmium battery or a hydrogen ion battery is used as a conventional secondary battery, in recent years, the memory effect as compared to a secondary battery of nickel based on the mobile device there is free and the charge and discharge hardly occurs, self-discharge rate is very low widely used in the lithium secondary battery is a high energy density.
[4]
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.
[5]
The lithium secondary battery has a positive electrode, a negative electrode and composed of a separator and an electrolyte interposed between them, the lithium secondary battery depending on which to use the positive electrode active material and the negative active material (Lithium Ion Battery, LIB), a lithium polymer battery (Polymer Lithium Ion Battery divided into, PLIB) and the like. Typically, the electrodes of these lithium secondary batteries is formed by after coating aluminum or copper sheet (sheet), mesh (mesh), the film (film), the foil (foil) to the positive or negative electrode active material of the current collector, such as drying.
[6]
1 is a cross-sectional view of a conventional battery cell, Figure 2 is a prior art cross-sectional view of the appearance that the interference occurs in the electrode lead when thinning the cell thickness in the battery cell. Here, 2 is put out that is excessively illustrated than the actual battery cell, to illustrate the problem that occurs when welding in a state in which the cell thickness of the battery cell thinner.
[7]
In such a way as to electrically connect the electrode lead (2) of the battery cell 1 may be welded is used, wherein the predetermined weld pitch (X to ensure the welding quality of the electrode lead (2) of the battery cell 1 ), for example, it is welded to secure the pitch (X) of about 7mm. 1, the conventional case of the battery cell 1, even if the welding by the cell thickness (t1) is sufficiently thick to bend the electrode lead (2) could be the predetermined weld pitch (X) is obtained. However, in recent years is also a trend that the cell thickness (t2) of the battery cell 1 thinner gradually as shown in Figure 2, so that the cell thickness (t2) of the battery cell 1 thinner bending the electrode lead (2) case (see part I of Fig. 2) the electrode lead (2) the interference from the bent portion to each other is generated, so there is a problem that it is difficult to secure a predetermined welding pitch (X).
Detailed Description of the Invention
SUMMARY
[8]
Accordingly, the object of the present invention is to provide a method of manufacturing that even if the cell thickness of the thin cell battery can secure a predetermined welding pitch for the welding between the electrode leads and the battery module to the battery module.
[9]
Further, to secure a predetermined welding pitch to prevent the interference between the electrode lead welding, and provide a method of manufacturing a battery module and a battery module that can enhance the quality of the weld thereby.
Problem solving means
[10]
According to an aspect of the invention, the battery cell stack that the battery cell is provided in plurality, the plurality of battery cells are stacked to each other is provided with a lead electrode; And an ICB cover the electrode lead is coupled are bent body electrode lead connections that are connected to each other in the other one of the battery cells adjacent to the electrode lead, and any one of the battery cell of any one of the battery cell of the plurality of battery cells, the ICB cover is provided in plurality, the plurality of ICB cover has a battery module that is arranged so as to have the different layers may be provided.
[11]
In addition, another plurality of ICB cover disposed on a different layer may be disposed on each of the different virtual straight lines.
[12]
Then, the ICB cover may include a bus bar electrically connected to the electrode lead.
[13]
Further, the plurality of covers are ICB, ICB claim 1 cover is arranged at a position close from the main body of the battery cell; And it may include a first cover 2 ICB disposed distant than the first 1 ICB cover from the main body of the battery cell.
[14]
And a first electrode lead connector body coupled to the first ICB cover, the second and a second electrode lead connector body coupled to the ICB cover, a plurality of the first electrode lead connecting body, a plurality of the second electrode lead connector body may be arranged alternately with each other.
[15]
Further, with the first electrode lead connecting body, the second electrode lead connecting body may be bent so as not to be in contact with each other.
[16]
In addition, the electrode lead connecting body may include a first bent portion which is bent from the straight portion of the electrode lead, wherein the second bent portion that is bent at a portion extending from the first bending portion.
[17]
Also, the first bent part of the first electrode and the first bent portion of the lead connector body, the second electrode lead connecting body may be bent to have different angle or a different shape.
[18]
Then, the first bent portion of the first electrode lead connecting body, the first bending portion of the second electrode lead connecting body may be bent in a direction opposite to each other.
[19]
According to another aspect of the invention, (a) is provided with a plurality of battery cells that are provided with an electrode lead, comprising: a plurality of battery cells are stacked on one another; (B) a plurality of the other electrode lead of the battery cell adjacent to the electrode lead of any of the battery cells of the battery cells, one battery cell is bent body electrode lead connections that are connected to each other stage is coupled to ICB cover .; And (c) ICB cover is provided in plurality, a plurality of ICB cover can be provided with a method for manufacturing a battery module comprising a step which is disposed to have a different layer.
[20]
Further, the step of the step (b), (b1) the claim 1 ICB cover arranged at a position close from the main body of the battery cell; And (b2) may include the step of claim 2 where the ICB cover disposed at a distance greater than the claim 1 ICB cover from the main body of the battery cell.
[21]
And, the step (b), after a plurality of the first electrode lead connector body coupled to the first ICB cover are bent is welded a plurality of second electrode lead connecting body is coupled to the second ICB cover are bent It may include a step of welding.
[22]
In addition, the step (b), and the first electrode lead connecting body, the second electrode lead connecting body may include a step that is bent not to contact with each other.
[23]
And, the step (b), containing body wherein the electrode lead connection, and the first bent part that is bent from the straight portion of the electrode lead, wherein a second bend that is bent at a portion extending from the part 1, bending the the may include a first bent portion and, the step of first bending portion bent to each other to have a different angle or a different shape of the second electrode lead connecting body of the first electrode lead connecting body.
[24]
According to another aspect of the present invention, there may be provided a battery pack including the battery module described above, also, there is a car including the battery module may be provided.
Effects of the Invention
[25]
Since embodiments of the present invention, the electrode leads are ICB cover is disposed so as to have the different layers are combined to obtain a desired weld pitch for the welding in the case where the cell thickness of the battery cell, a thin, even between the electrode leads effect have.
[26]
Further, to secure a predetermined welding pitch to prevent the interference between the electrode lead during welding and is effective to improve the quality of the weld thereby.
Brief Description of the Drawings
[27]
Figure 1 is a prior art cross-sectional view of the battery cell.
[28]
Figure 2 is a prior art cross-sectional view of the appearance that the interference occurs in the electrode lead when thinning the cell thickness in the battery cell.
[29]
Figure 3 is a cross-sectional view of a state coupled to the first electrode lead connecting the first ICB cover body in a battery module in accordance with one embodiment of the present invention.
[30]
Figure 4 is a cross-sectional view of a state coupled to the second lead electrode connected to the second ICB cover body in a battery module in accordance with one embodiment of the present invention.
[31]
Figure 5 is a cross-sectional view of a battery module according to another embodiment of the present invention.
Mode for the Invention
[32]
With reference to the accompanying drawings, it will be described in detail according to a preferred embodiment of the present invention. Herein and in the terms or words used in the claims is general and not be construed as limited to the dictionary meanings are not, the inventor can adequately define terms to describe his own invention in the best way on the basis of the principle that the interpreted based on the meanings and concepts corresponding to technical aspects of the present invention. Accordingly, the configuration shown in the examples and figures disclosed herein are in not intended to limit the scope of the present is merely a preferable embodiment of the present invention invention, a variety that can be made thereto according to the present application point It should be understood that there are equivalents and modifications.
[33]
Size of the particular portion to be combined with each component or components in the drawings are exaggerated, omitted for the purpose of convenience or clarity, or was schematically illustrated. Therefore, the size of elements does not utterly reflect an actual size. If a detailed description of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention, such explanation will be omitted.
[34]
The term "coupled" or "connected" as used herein, is one member and the other members directly bonded, or a single member, as well as when directly connected or via a joint member indirectly coupled to another element or indirectly to also include the case that is connected.
[35]
Figure 3 is a cross-sectional view of the state coupled to the first electrode lead connecting the first ICB cover body in the battery module according to an embodiment of the present invention, Figure 4 is a second electrode lead in the battery module according to an embodiment of the present invention a cross-sectional view of the figure is coupled body coupled to a 2 ICB cover, Figure 5 is a cross-sectional view of a battery module according to another embodiment of the present invention.
[36]
3 and 4, the battery module 10 according to one embodiment of the present invention includes a battery cell stack 100 and, ICB (interconnect board) cover 300.
[37]
Battery cell stack 100, the battery cell 110, which is provided with the electrode lead 111 is provided in plurality. Electrode lead 111 is provided in the battery cell 110 has a conductive material may be used as a type of terminal being exposed to an external connection to an external device. Electrode lead 111 may include a positive electrode lead and the negative electrode lead. To the positive electrode lead and negative electrode lead are equal to each other with respect to the longitudinal direction of the battery cell 110, the length and to the direction may be each arranged in the opposite direction, or the positive electrode lead and the negative electrode lead, the battery cell 110 in the direction It may be located. Electrode lead 111 may be electrically coupled to the bus bar 400. Battery cell 110 is a positive electrode plate-separator-unit are arranged in order of the negative electrode plate cells (Unit Cell) or bipolar plate - separator - negative electrode plate - separator - positive electrode plate-separator-cell a bi-cell (Bi-Cell) arranged in order of the negative electrode plate It may have a structure in which a plurality of lamination according to the capacity.
[38]
Battery cell stack 100 has a plurality of battery cells 110 may be configured to be stacked on one another. Here, the battery cell 110 may have a different structure, also, the plurality of battery cells 110 may be stacked in a number of ways.
[39]
Battery cell stack 100 may be provided with a plurality of cartridges (not shown) for housing a respective battery cell 110. The Each cartridge (not shown) may be made by injection molding of plastic, it may be a stacked plurality of cartridge accommodating portion capable of accommodating the battery cell 110 is formed (not shown). A plurality of cartridges (not shown) are stacked cartridge assembly may be provided with a connector element, or terminal element. Connector elements, for example, battery cell 110 may provide the data for the voltage or temperature BMS (Battery Management System, not shown) may include various types of electrical connection part to the connection member for connection or the like that of have. Then, the terminal element comprises a positive terminal and the negative terminal as a main terminal coupled to the battery cell 110, the terminal element is provided with a terminal bolt can be connected to external devices electrically. On the other hand, the battery cells 110 may have various shapes.
[40]
ICB cover 300 may be coupled to the bent electrode lead connecting body 200. The Here, ICB cover 300, the bus bar 400 can be provided, and the electrode lead which a plurality of electrode lead 111 connected to each other connecting body 200, the bus bar 400 is provided on the ICB cover 300 a may be electrically connected. Electrode lead connecting body 200 and one of the battery cells adjacent to the electrode lead 111 and any one of the battery cells 110 of one of the plurality of battery cells 110, a battery cell 110 ( the electrode leads 111, 110) may be adapted to be connected to each other. For example, the electrode lead connector body 200 includes a first electrode lead connecting body 210 and the second electrode lead may comprise a connector body 220, a first electrode lead connection as shown in Figs. 3 and 4 body 210 may be provided with any one of the electrode leads (111b) of the battery cell (110a), the electrode lead (111a) and, adjacent the other one of the battery cell (110b) of which to be connected to each other. A second electrode lead connecting body 220 is either one of the electrode leads (111d) of the battery cell (110c), the electrode lead (111c) and the other one of the battery cell (110d) to the neighborhood of the is adapted to be connected to each other can.
[41]
ICB cover 300 may be coupled to the bent portion of the electrode lead connecting body 200, as shown in Figs. Here, ICB cover 300 may be arranged to have a different layer is provided in plurality, the plurality of ICB cover 300. And a plurality of ICB cover 300 may mean that each disposed on it, for example a plurality of straight lines of ICB cover 300 is respectively different virtual disposed so as to have other layers, but not limited . The number of the plurality of ICB cover 300 may vary, if the following description with two ICB cover 300. For ease of illustration, for example, 2 is the 1 ICB cover ICB cover 300 (310) and it will be described with reference to the case of claim 2 ICB cover 320. For mainly a case in which g., 3 and 4, the 1 ICB cover 310 is disposed on the straight line A of the virtual claim 2 ICB cover 320 is disposed on a straight line B in the virtual It will be described. In this way, and the two ICB cover 300 is possible to secure a predetermined welding pitch for the welding between each other when arranged to have another layer battery cells 110, even if the thin cell thickness of the electrode leads 111 of, this will be explained in detail below.
[42]
ICB cover 300 may include the claim 1 ICB cover 310 and the cover 2 ICB 320, as described above. Here, 3 and 4, the 1 ICB cover 310 from the main body of the battery cell 110 is disposed at a position close from the main body, a 2 ICB cover 320 of the battery cell 110, the 1 is disposed at a distance than ICB cover 310. Then, the first ICB cover 310 is coupled the first electrode lead connecting body 210, the second ICB cover 320 there is coupled the second electrode leads connected to body 220. Here, there may be provided a plurality of the first electrode lead connecting body 210, a second electrode lead connecting body 220 also may be provided in plurality, and the plurality of first electrode lead connecting body 210, a plurality of second electrode lead connecting body 220 may be arranged alternately with each other. I.e., 4, the first electrode lead connecting body 210 is arranged first, and then is placed and a second electrode lead connection body 220, and then again the first electrode lead connecting body (210) is disposed, and then may again be re-connected to the second electrode lead body 220 is gamyeo is disposed, Thus, the first electrode lead connecting body 210 and the second electrode lead connecting body 220 alternately disposed. Here, the number of the first electrode lead connecting body 210 and the second electrode lead connecting body 220 may vary. As described above, the first ICB cover 310 and the 2 ICB cover 320 is disposed on the respective different virtual straight lines, the first ICB cover 310 and the 2 ICB cover 320 provided with a first since the electrode lead connecting body 210 and the second electrode lead connecting body 220 is coupled, respectively, A first electrode lead connecting body 210 and the second electrode lead connecting body 220 is also arranged on the different virtual straight lines. And, 3 and 4, the first electrode lead connecting body 210, the second electrode lead connecting body 220 is different imaginary straight line neighboring the first electrode lead connecting body (210) It is disposed to be bent so as not to be in contact with each other. Thereby, the battery module 10 according to one embodiment of the present invention can secure a predetermined welding pitch for the welding between the electrode lead 111. To this end, the first and the first bent portion 250 of the electrode lead connector body 210, a second electrode lead connecting body 220, first the first bending portion 250 is bent to have a different angle to each other interference of in that to the contact it can be prevented. Or the first bending part 250 and a second electrode lead connecting the first bent portion 250 of the body 220 is bent so as to have a different shape interfere with each other to contact the first electrode lead connecting body (210) that it can be prevented. 3 and 4 by, for example, will be described in detail, each electrode lead connecting body 200, that is, the first electrode lead connecting body 210 and the second electrode lead connecting body 220 includes a first and the bent portion 250, it is possible to include a second bend 260. The first bending portion 250 is a portion that is bent from the straight portion of the electrode lead 111, the second bent portion 260 of the electrode lead connector body 200 of the electrode lead connecting body 200 unit the first bending a part bent at a portion extending from 250. A first electrode lead connecting body 210 includes a first bending portion (250a) on one of the electrode leads (111a) of the battery cell (110a) and, The first has a bent portion (250b), the second electrode lead connecting body 220 includes an electrode lead (111c) of any one of the battery cell (110c) of the other one of the electrode leads (111b) of the battery cell (110b) the first may have a bent part (250c) and the other one of the first bent portion (250d) of the electrode lead (111d) of the battery cell (110d) for. Here, the first bent part (250c) of the first electrode lead connecting body 210, the first bending portion (250a) and the second electrode lead connecting body 220 of the is configured to have the same angle, the first electrode lead a first bent portion (250d) of the first bent part (250b) and the second electrode lead connector body 220 of connector body 210 may be configured to have a different angle. Alternatively, the first electrode lead connecting body 210, the first bending portion (250a) and the second electrode lead connecting body 220, the first bent part (250c) as well as to have different angles first electrode lead connected to the body a first bent portion (250d) of the first bent part (250b) and the second electrode lead connecting body 220 of the portion 210 may be configured to have a different angle. Thereby, the first electrode lead connecting body 210 and the second electrode lead connecting body 220 is bent so that it is possible to be in contact with each other. Alternatively, each of the first bent portions (250a, 250b, 250c, 250d) formed at least different from the one shape of the first electrode lead connecting body 210 and the second electrode lead connection body 220 of a not to contact with each other It may be bent. On the other hand, the manner in which the bent so that the first electrode lead connecting body 210 and the second electrode lead connecting body 220 is not in contact with each other can vary more. For example, 5, the first electrode connected to the first bending of the lead body 210 parts (250a,
[43]
With reference to the drawings will be described operations and effects of the battery module 10 according to one embodiment of the invention.
[44]
3 and referring to Figure 4, ICB cover 300 has a plurality, for example, claim 1 ICB cover 310 and the 2 ICB can include a cover 320, each ICB cover 300, electrode the lead connector body 200 can be connected by bending. Here, the 1 ICB cover 310 and the 2 ICB cover 320 is different layers, for example, can be arranged on different imaginary straight line, the 1 ICB cover 310 and the 2 ICB cover ( 320) has a first electrode lead connecting body 210 and the second electrode lead connecting body 220 is coupled to each also be arranged on different imaginary straight line.
[45]
A first electrode lead connecting body 210 and the second electrode lead connecting body 220 to each other are disposed on the other imaginary straight line, conventionally arranged in a straight line interference at the bending portion between the electrode lead (2) (Fig. reference I portion in Fig. 2) is, unlike the method for generating a first-electrode lead connecting body 210 and the second electrode lead connecting body 220 so as not to contact with each other, that is, no mutual interference first electrode lead connecting body ( 210) and can be suitably bent to the second connection electrode lead body 220. This makes it possible to secure the battery module 10, the predetermined welding pitch for the welding between, even if the thin cell thickness of the electrode leads 111 of the battery cell 110 according to one embodiment of the invention, As a result there is an effect that it is possible to improve the quality of the weld.
[46]
Hereinafter, with reference to the drawings, but describes the actions and effects of the manufacturing method of the battery module 10 according to one embodiment of the invention, which is more common with mentioned in the battery module 10 according to one embodiment of the present invention part is replaced by the foregoing description.
[47]
First, the battery cell 110, which is provided with electrode leads 111 are provided with a plurality stacked together (see Figs. 3 and 4).
[48]
Next, the electrode lead connector body 200 and one of the battery adjacent to the electrode lead 111 and any one of the battery cells 110 of one of the plurality of battery cells (110) one battery cell 110 connecting the electrode lead 111 in the cells 110 to each other, and the bent electrode lead connecting body 200 is coupled to the cover ICB 300. ICB cover 300 is provided in plurality, the plurality of ICB cover 300 is arranged to have a different layer. A plurality of ICB cover 300 to each other means that is arranged to have a different layer, for example a plurality of ICB cover 300 is disposed on a respective different virtual straight line. Here, the ICB cover 300 includes a first 1 ICB cover (310), a 2 ICB cover 320, the claim 1 ICB cover 310 at a position close from the main body of the battery cell 110 is disposed, the cover of claim 2 ICB 320, the distance than the 1 ICB cover 310 from the main body of the battery cell 110 is disposed. Then, the first ICB cover 310 has a plurality of first electrode lead connection body 210 to be bent is welded, the second ICB cover 320 has a plurality of second electrode lead connecting body welding is 220 to bending there is, first, a plurality of the first electrode lead connecting body 210 are bent and coupled by welding to the first ICB cover 310 (see Fig. 3), a plurality of second electrode lead connecting body 220 are bent after the coupling is welded to 2 ICB cover 320 (see Fig. 4). And wherein 4, the electrode lead connector body 200 includes a first bent portion 250 is bent from the straight portion of the electrode lead 111,
[49]
On the other hand, a battery pack (not shown) in accordance with one embodiment of the present invention may include one or more of the battery module 10 according to one embodiment of the present invention as described above. In addition, the battery pack (not shown), such a battery module 10 in addition to, various devices for controlling the charging and discharging of the case, a battery module 10 for receiving such a battery module 10, such as BMS, current the sensor, a fuse or the like can be further included.
[50]
Meanwhile, the vehicle (not shown) in accordance with one embodiment of the present invention may include a battery module (10) above or a battery pack (not shown), in the battery module 10. The battery pack (not shown) this may be included. Then, the battery module 10 according to one embodiment of the present invention, the motor vehicle (not shown), for example, be applied to certain of the vehicle (not shown) that is adapted to use electrical, such as an electric car or a hybrid car can.
[51]
The present invention in the above Although the detailed description and specific examples, the invention is not limited by this is described below with the teachings of the present invention by one of ordinary skill in the art available are various changes and modifications within the equivalent scope of the claims. FIG.
Industrial Applicability
[52]
The invention is applicable to industries related to, especially, a secondary battery as a method of manufacturing a battery module and a battery module.

Claims

[Claim 1]Battery cell stack, the battery cell being provided with a lead electrode is provided in plurality and a plurality of battery cells are stacked on one another; And an ICB cover the electrode lead is coupled are bent body electrode lead connections that are connected to each other in the other one of the battery cells adjacent to the electrode lead, and any one of the battery cell of any one of the battery cell of the plurality of battery cells, the ICB cover is provided in plurality, the plurality of ICB cover battery modules is arranged to have a different layer.
[Claim 2]
The method of claim 1, wherein the plurality of ICB cover battery module that is arranged on each of the different virtual straight lines disposed on different layers.
[Claim 3]
The method of claim 1, wherein the cover has ICB battery module, characterized in that the bar includes a bus that is electrically coupled to the electrode lead.
[Claim 4]
The method of claim 1, wherein the plurality of covers are ICB, ICB first cover which is arranged at a position close from the main body of the battery cell; And a battery module comprises a first 2 ICB cover disposed at a distance greater than the first 1 ICB cover from the main body of the battery cell.
[Claim 5]
According to claim 4, characterized in that with the first first electrode lead connection that is coupled to the ICB cover body, and the second includes a second electrode lead connector body coupled to the ICB cover, a plurality of the first electrode lead connecting body and a plurality of the second electrode lead connecting body are a battery module that is arranged alternately with each other.
[Claim 6]
The method of claim 5, wherein the first electrode lead and the connector body, the second electrode lead connecting body is a battery module characterized in that the bending does not touch each other.
[Claim 7]
7. The method of claim 6 wherein the electrode lead connection body is provided with a first bending portion that is bent from the straight portion of the electrode lead, the first characterized in that it comprises a second bend that is bent at a portion extending from section 1 bent The battery module.
[Claim 8]
The method of claim 7, wherein the battery module, characterized in that the first electrode and the first bent portion of the lead connector body, a first bent part bent to have different angle or a different shape of the second electrode lead connecting body .
[Claim 9]
The method of claim 7, wherein the first electrode lead connecting body first bent portion and the second electrode lead connecting body of the first bent part of the battery module being bent in a direction opposite to each other.
[Claim 10]
(A) and the battery cells that are provided with a lead electrode provided in plurality, the method in which a plurality of battery cells are stacked on one another; (B) a plurality of the other electrode lead of the battery cell adjacent to the electrode lead of any of the battery cells of the battery cells, one battery cell is bent body electrode lead connections that are connected to each other stage is coupled to ICB cover .; And (c) ICB cover is provided with a plurality method for manufacturing a battery module comprising a plurality of ICB cover disposed to have a different layer.
[Claim 11]
The method of claim 10, wherein the step is step (b), (b1) the claim 1 ICB cover arranged at a position close from the main body of the battery cell; And (b2) of the method of manufacturing a battery module comprising the steps of claim 2 where the ICB cover disposed at a distance greater than the claim 1 ICB cover from the main body of the battery cell.
[Claim 12]
12. The method of claim 11, wherein step (b), the first after the first plurality of electrode leads connected coupled to ICB cover body are bent welding a plurality of second electrode lead coupled to the second ICB cover connection method for manufacturing a battery module, characterized in that the body to comprise a step in which the bending is welded.
[Claim 13]
13. The method of claim 12, wherein step (b), the first electrode lead connecting body and the second electrode lead connecting body manufacturing method of the battery module, comprising the step of bending does not touch each other.
[Claim 14]
14. The method of claim 13, wherein step (b), the electrode body is a lead connected to a first bent part that is bent from the straight portion of the electrode lead, wherein the second bending is bending at the portion extending from the portion 1, the bent portion It includes, and the battery comprises a first bent portion and, the step of first bending portion bent to each other to have a different angle or a different shape of the second electrode lead connecting body of the first electrode lead connecting body method for producing a module.
[Claim 15]
The first battery pack including a battery module according to any one of the preceding claims 9.
[Claim 16]
FAW including a battery module according to any one of the preceding claims 9.