Batteries, battery packs containing them, and automobiles

Abstract

A battery according to one embodiment of the present invention may include an electrode assembly comprising a first electrode having a first uncoated portion and a second electrode having a second uncoated portion and having the opposite polarity to the first electrode; a battery housing configured to house the electrode assembly through an opening formed on one side and configured to be electrically connected to the second electrode; and a current collector terminal configured to be electrically connected to the first electrode and electrically insulated from the battery housing, comprising an electrical connection portion configured to be coupled to one surface of the electrode assembly on the closed portion side of the battery housing provided on the opposite side of the opening, and a terminal portion extending from the electrical connection portion and configured to be exposed to the outside of the battery housing through the closed portion.

Description

Technical Field

[0001] The present invention relates to a battery, a battery pack including the same, and a vehicle. This application claims priority based on Korean Patent Application No. 10-2023-0104399 filed on August 9, 2023, and all the contents disclosed in the specification and drawings of the application are incorporated herein.

Background Art

[0002] Secondary batteries that are easy to apply according to product groups and have electrical characteristics such as high energy density are not only applied to portable devices but also widely applied to electric vehicles (EVs), hybrid electric vehicles (HEVs), etc., which are driven by an electric drive source.

[0003] Such secondary batteries not only have the primary advantage of significantly reducing the use of fossil fuels but are also environmentally friendly in that they do not produce any by-products associated with energy use and are attracting attention as a new energy source for improving energy efficiency.

[0004] Currently, widely used types of secondary batteries include lithium-ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel metal hydride batteries, nickel zinc batteries, etc. The operating voltage of such a single secondary battery cell is about 2.5V to 4.5V. Therefore, when a higher output voltage is required, a plurality of batteries are connected in series to form a battery pack. Also, a battery pack can be configured by connecting a plurality of batteries in parallel according to the charge and discharge capacity required for the battery pack. Thus, the number of battery cells included in the battery pack and the electrical connection form can be variously set according to the required output voltage and / or charge and discharge capacity.

[0005] On the other hand, the battery may be configured to use the battery housing and terminals as electrode terminals, respectively. The battery may have a structure in which current collector plates are applied for electrical connections between components. Furthermore, the battery may have a structure in which insulators and gaskets are applied between components for electrical insulation between the battery housing and terminals, and between the electrode assembly and housing.

[0006] However, an increase in the number of components for electrical connections and / or insulation can lead to increased manufacturing costs. Furthermore, additional processes for component application complicate the battery production process, and this complexity can also reduce productivity. [Overview of the project] [Problems that the invention aims to solve]

[0007] This invention has been made in view of the above-mentioned problems, and aims to provide a battery with a simplified structure.

[0008] However, the technical problems that this invention aims to solve are not limited to those described above, and other problems not mentioned will be clearly understood by those skilled in the art from the description of the invention below. [Means for solving the problem]

[0009] To solve the above problems, a battery according to one embodiment of the present invention may include an electrode assembly including a first electrode having a first uncoated portion and a second electrode having a second uncoated portion and configured to have polarity opposite to that of the first electrode; a battery housing configured to house the electrode assembly through an opening formed on one side and configured to be electrically connected to the second electrode; and a current collector terminal configured to be electrically connected to the first electrode and electrically insulated from the battery housing, the current collector terminal including an electrical connection portion configured to be coupled to one surface of the electrode assembly on the closed portion side of the battery housing provided on the opposite side of the opening, and a terminal portion extending from the electrical connection portion and configured to be exposed to the outside of the battery housing through the closed portion.

[0010] The electrical connection portion and the terminal portion may be provided as an integral part.

[0011] The electrical connection portion is interposed between the electrode assembly and the closing portion and can be coupled to the first uncoated portion of the electrode assembly.

[0012] The terminal portion may be configured to be riveted to the outer surface of the closing portion.

[0013] The battery may include a gasket interposed between the current collection terminal and the battery housing.

[0014] The gasket may include a first gasket portion interposed between the electrical connection portion and the closing portion inside the battery housing, and a second gasket portion interposed between the terminal portion and the closing portion outside the battery housing.

[0015] The first gasket portion and the second gasket portion may be provided as a single unit.

[0016] The second gasket portion may be configured to be riveted to the outer surface of the closing portion together with the terminal portion.

[0017] The gasket portion may include a third gasket portion that extends from the outer periphery of the first gasket portion and is interposed between the outer periphery of the electrode assembly and the side wall of the battery housing.

[0018] The third gasket portion and the first gasket portion may be provided as a single unit.

[0019] The battery may include a battery cover configured to cover the opening of the battery housing.

[0020] Furthermore, a battery pack according to one embodiment of the present invention for solving the above problem may include a battery according to one embodiment of the present invention.

[0021] An automobile according to one embodiment of the present invention, which solves the above problem, may include a battery pack according to one embodiment of the present invention.

[0022] A battery manufacturing method according to one embodiment of the present invention for solving the above problems may include: a coupling step of coupling a current collector terminal including an electrical connection portion and a terminal portion to one surface of an electrode assembly; an insertion step of inserting the coupling including the current collector terminal and the electrode assembly into the inside of the battery housing through an opening formed on one side of the battery housing so that at least a part of the terminal portion is exposed to the outside of the battery housing through a closing portion provided on the opposite side of the opening portion; and a riveting step of riveting the terminal portion exposed to the outside of the battery housing to the closing portion.

[0023] The coupling step may include coupling a gasket, which includes a first gasket portion configured to cover the electrical connection portion and a second gasket portion configured to cover the terminal portion, to the current collector terminal.

[0024] The riveting step may be a step of riveting the terminal portion and the second gasket portion together to the closing portion.

Advantages of the Invention

[0025] According to one aspect of the present invention, the production process is simplified by a battery to which a simplified structure is applied, and the production cost is reduced.

[0026] However, the effects of the present invention are not limited to the above-described effects, and other effects of the present invention not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0027] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further understand the technical idea of the present invention together with the detailed description of the invention. Therefore, the present invention should not be construed as being limited only to the matters described in the drawings.

Brief Description of the Drawings

[0028] [Figure 1] It is a perspective view showing the appearance of a battery according to an embodiment of the present invention. [Figure 2] It is a view showing the internal structure of the upper part of a battery according to an embodiment of the present invention. [Figure 3] It is a view showing an electrode assembly according to an embodiment of the present invention. [Figure 4] It is a view showing a process of inserting a combined body in which an electrode assembly of the present invention and a current collector terminal are combined into a battery housing. [Figure 5] It is a view showing a riveting process of a current collector terminal of the present invention. [Figure 6] It is a view showing an exemplary structure of a third gasket part of the present invention [[ID=�7]] [Figure 7] It is a view showing an exemplary structure of a third gasket part of the present invention. [Figure 8] It is a view showing the internal structure of the lower part of a battery according to an embodiment of the present invention. [Figure 9] It is a view showing a battery pack according to an embodiment of the present invention. [Figure 10] It is a view showing an automobile according to an embodiment of the present invention. [Modes for carrying out the invention]

[0029] Preferred embodiments of the present invention will now be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and in the claims should not be interpreted in a manner limited to their ordinary or dictionary meanings, but rather in a manner appropriate to the technical idea of ​​the present invention, in accordance with the principle that the inventor himself may appropriately define the concepts of terms in order to best describe the invention. Accordingly, it should be understood that the embodiments and configurations shown in the drawings described herein are merely the most preferred embodiments of the present invention and do not represent the entirety of the technical idea of ​​the present invention, and that there may be a variety of equivalents and modifications that can be substituted therein at the time of this application.

[0030] A battery 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 5. Figure 1 is a perspective view showing the external appearance of a battery according to one embodiment of the present invention, and Figure 2 is a diagram showing the internal structure of the upper porton of a battery according to one embodiment of the present invention. Figure 3 is a diagram showing an electrode assembly according to one embodiment of the present invention. Figure 4 is a diagram showing the process of inserting the assembly, which is a combination of the electrode assembly and the current collector terminal of the present invention, into the battery housing, and Figure 5 is a diagram showing the process of riveting the current collector terminal of the present invention.

[0031] First, referring to Figures 1 to 3, the battery 1 may include an electrode assembly 10, a battery housing 20, and a current collector terminal 30. The battery 1 may be a secondary battery. The battery 1 may be a cylindrical battery.

[0032] The electrode assembly 10 may include a first electrode, a second electrode having the opposite polarity to the first electrode, and a separation membrane interposed between the first and second electrodes. The first electrode may be a positive electrode and the second electrode a negative electrode. Conversely, the first electrode may be a negative electrode and the second electrode a positive electrode. The separation membrane may be configured to cover the inner wall surface of the winding central hole C of the electrode assembly 10. The separation membrane may be configured to at least partially cover the periphery of the outer surface of the electrode assembly 10.

[0033] The electrode assembly 10 may be, for example, a jelly roll type electrode assembly formed by winding up a laminate including a positive electrode, a negative electrode, and a separation membrane.

[0034] The first electrode of the electrode assembly 10 may have a first uncoated portion 11 extending along the winding direction from one end in the width direction (parallel to the Y-axis). The second electrode of the electrode assembly 10 may have a second uncoated portion 12 extending along the winding direction from the other end in the width direction (parallel to the Y-axis). The first and second surfaces of the electrode assembly 10, provided on one and the other side in the height direction (parallel to the Y-axis), may each have a first uncoated portion 11 and a second uncoated portion 12. The first uncoated portion 11 may extend upward of the electrode assembly 10. The second uncoated portion 12 may extend downward of the electrode assembly 10.

[0035] Referring to Figure 3, the first uncoated portion 11 and / or the second uncoated portion 12 can be bent along substantially the radial direction. By bending, the first uncoated portion 11 and / or the second uncoated portion 12 can form a plane substantially perpendicular to the height direction (parallel to the Z-axis) of the electrode assembly 10. By bending the uncoated portions, superposition of uncoated portions located in different winding turns can occur. The first uncoated portion 11 and / or the second uncoated portion 12 can be bent from the outer circumference side of the electrode assembly 10 toward the core side.

[0036] The first uncoated portion 11 and / or the second uncoated portion 12 may have a plurality of notches formed spaced apart from each other along the winding direction, and may have a plurality of segmented pieces F formed by notching. When the first uncoated portion 11 and / or the second uncoated portion 12 have a plurality of segmented pieces F in this way, the process of bending the first uncoated portion 11 and / or the second uncoated portion 12 substantially along the radial direction may be made smoother.

[0037] The battery housing 20 may be configured to house the electrode assembly 10 through an opening formed on one side. The battery housing 20 may include a side wall and a closure. The side wall may be hollow and cylindrical. The closure may be connected to the side wall. The closure may be integrally provided with the side wall. The battery housing 20 may be electrically connected to the second electrode of the electrode assembly 10. The battery housing 20 may contain a conductive metal. This allows the battery housing 20 to function as an electrode terminal having the same polarity as the second electrode. An electrolyte may be housed inside the battery housing 20 together with the electrode assembly 10.

[0038] The current collector terminal 30 can be electrically connected to the first electrode of the electrode assembly 10. The current collector terminal 30 can be configured to be electrically insulated from the battery housing 20. Electrical insulation between the current collector terminal 30 and the battery housing 20 can be achieved by a gasket 40, which will be described later. However, the present invention is not limited thereto, and the gasket 40 may be omitted, and an insulating coating layer may be applied to at least the area of ​​the surface of the current collector terminal 30 that may come into contact with the battery housing 20, or the components may be fixed in a way that maintains a separation state so that contact between the current collector terminal 30 and the battery housing 20 does not occur.

[0039] The current collection terminal 30 may include an electrical connection portion 31 and a terminal portion 32. The electrical connection portion 31 may be configured to connect to one surface of the electrode assembly 10 on the side of a closed portion provided on the opposite side of an open portion formed in the battery housing 20. The electrical connection portion 31 may connect to the first uncoated portion 11 of the first electrode. The electrical connection portion 31 may be interposed between the closed portion of the battery housing 20 and the electrode assembly 10. The electrical connection portion 31 may have a shape and size corresponding to one surface of the opposing electrode assembly 10 in order to maximize current collection efficiency. The outer diameter or width of the electrical connection portion 31 may be larger than the inner diameter or width of a hole formed in the closed portion for the passage of the terminal portion 32.

[0040] The electrical connection portion 31 and the electrode assembly 10 may be joined by welding. The welding may be, for example, laser welding. When laser welding is performed for joining the electrical connection portion 31 and the electrode assembly 10, the laser welding may be performed in the region where the number of overlapping layers of the first uncoated portion 11 is maximized. When laser welding is performed in the region where the number of overlapping layers of the first uncoated portion 11 is maximized in this way, the risk of the first uncoated portion 11 being penetrated by the irradiated laser is minimized, thereby reducing the risk of damage to the electrode assembly 10.

[0041] The terminal portion 32 extends from the electrical connection portion 31 and can be configured so that at least a part of it passes through the closing portion of the battery housing 20 and is exposed to the outside of the battery housing 20. Since the terminal portion 32 that passes through the closing portion and is exposed to the outside of the battery housing 20 and the closing portion of the battery housing 20 are configured to have opposite polarities, the battery 1 of the present invention may have a structure in which both a positive terminal and a negative terminal are provided on one side. With such a structure, the electrical connection structure is simplified when electrically connecting multiple batteries 1 of the present invention.

[0042] The terminal portion 32 can be integrated with the electrical connection portion 31. Here, the integration of the terminal portion 32 with the electrical connection portion 31 may mean that, in the manufacturing of the battery 1 of the present invention, the process of connecting the terminal portion 32 and the electrical connection portion 31 to each other is not performed inside the battery housing 20.

[0043] The terminal portion 32 may be configured to be riveted to the outer surface of the closing portion of the battery housing 20. That is, the terminal portion 32 is exposed to the outside from the inside of the battery housing 20 through a hole formed in the closing portion, and its peripheral edge is bent toward the outer surface of the closing portion of the battery housing 20 by reveting, thereby being fixed to the battery housing 20 by riveting. In order to perform this riveting process, the terminal portion 32 may be provided with a flange portion 32a on its peripheral edge. The outer diameter or width of the terminal portion 32 in the region where the flange portion 32a is formed may be smaller than the inner diameter or width of the hole formed in the closing portion for the passage of the terminal portion 32 before the riveting process is performed, and larger than the inner diameter or width of the hole formed in the closing portion after the riveting process is performed.

[0044] According to the above-described configuration of the battery 1 of the present invention, the welding process for joining the current collector plate connected to the electrode assembly 10 and the terminals exposed to the outside of the battery housing 20 can be omitted.

[0045] Referring to Figures 4 and 5, it can be seen that when manufacturing the battery 1 of the present invention, the process of welding the current collector plate and the terminals to each other is unnecessary. As shown in Figure 4, the assembly, which includes the electrode assembly 10 and the current collector terminal 30 bonded to one side of the electrode assembly 10, can be inserted from the opening of the battery housing 20 along the direction of the arrow. Through this insertion process, the terminal portion 32 of the current collector terminal 30 is exposed to the outside of the battery housing 20, and the exposed terminal portion 32 can be bonded to the battery housing 20 by riveting.

[0046] Therefore, according to the structure of the battery 1 of the present invention, a separate current collector plate that connects to the electrode assembly 10 is unnecessary, thus reducing the number of parts. Furthermore, according to the structure of the battery 1 of the present invention, since the electrical connection part 31 that functions as a current collector plate and the terminal part 32 that functions as a terminal are provided integrally, there is no need to connect the electrical connection part 31 and the terminal part 32 in the narrow space inside the battery housing 20. That is, if the current collector plate and the terminal are provided as separate parts, the welding process for connecting the terminal and the current collector plate must be performed through the winding center hole C of the electrode assembly 10. However, when inserting a welding tool or irradiating with a laser through the winding center hole C of the electrode assembly 10, the narrow space increases the risk of damaging the electrode assembly 10, and the work can become more complicated. In contrast, according to the above-described structure of the battery 1 of the present invention, it is possible to reduce the number of parts, simplify the production process, and minimize the risk of battery defects occurring during the manufacturing process.

[0047] Referring to Figures 1 to 5, the battery 1 of the present invention may include a gasket 40. The gasket 40 may be interposed between the current collector terminal 30 and the battery housing 20. The gasket 40 may be configured to enhance the sealing force of the battery housing 20 in the area where the current collector terminal 30 is exposed to the outside of the battery housing 20. The gasket 40 may be configured to prevent electrical contact between the current collector terminal 30 and the battery housing 20. The gasket 40 may include an elastic material, taking such a function into consideration. The gasket 40 may include an electrically insulating material.

[0048] The gasket 40 may include a first gasket portion 41 and a second gasket portion 42. The first gasket portion 41 may be interposed inside the battery housing 20 between the electrical connection portion 31 and the closing portion of the battery housing 20. The outer diameter or width of the first gasket portion 41 may be larger than the outer diameter or width of the electrical connection portion 31. The second gasket portion 42 may be interposed from outside the battery housing 20 between the terminal portion 32 of the current collection terminal 30 and the closing portion of the battery housing 20. The outer diameter or width of the second gasket portion 42 may be larger than the outer diameter or width of the terminal portion 32. The first gasket portion 41 and the second gasket portion 42 may be provided integrally. The second gasket portion 42 may be riveted to the outer surface of the closing portion together with the terminal portion 32 of the current collection terminal 30.

[0049] According to the structure of the gasket 40 of the present invention as described above, it is not necessary to individually perform the steps of providing an insulator component to prevent contact between the battery housing 20 and the electrical connection part 31, and a gasket component to prevent contact between the terminal part 32 and the battery housing 20. This eliminates the complexity of the process and reduces the number of parts.

[0050] Next, the third gasket portion 43 of the present invention will be described with reference to Figures 6 and 7. Figures 6 and 7 show exemplary structures of the third gasket portion of the present invention.

[0051] Referring to Figures 6 and 7, the gasket 40 of the present invention may include a third gasket portion 43. The third gasket portion 43 may extend downward (towards the opening of the battery housing 20) from the outer periphery of the first gasket portion 41. The third gasket portion 43 may be interposed between the outer periphery of the electrode assembly 10 and the side wall of the battery housing 20. The third gasket portion 43 and the first gasket portion 41 may be provided integrally.

[0052] The third gasket portion 43 may be configured to cover the region (uncoated region) on the first electrode of the electrode assembly 10 where the first uncoated portion 11 is formed. The third gasket portion 43 may extend to a point below the starting point of the uncoated region on the outer circumferential surface of the electrode assembly 10.

[0053] When the gasket 40 of the present invention is equipped with the third gasket portion 43 in this manner, its insulating properties are enhanced. Furthermore, when inserting the electrode assembly 10 into the battery housing 20, the third gasket portion 43 prevents interference between the electrode assembly 10 and the side wall of the battery housing 20. Such prevention of interference minimizes the risk of damage to the electrode assembly 10.

[0054] Next, an exemplary structure of the lower portion of the battery 1 of the present invention will be described with reference to Figure 8. Figure 8 is a diagram showing the internal structure of the lower portion of a battery according to one embodiment of the present invention.

[0055] Referring to Figure 8, the battery 1 may include a battery cover 50. The battery cover 50 may be configured to cover the open portion of the battery housing 20. The battery cover 50 does not need to be electrically connected to the electrode assembly 10 and the battery housing 20. Electrical insulation between the battery cover 50 and the battery housing 20 can be achieved, for example, by an insulating member 60 interposed between the battery cover 50 and the inner surface of the battery housing 20.

[0056] However, the present invention does not preclude the battery cover 50 from having polarity. The battery cover 50 may be provided with a vent portion that is more fragile than the surrounding area so that it preferentially breaks when the internal pressure increases.

[0057] The battery 1 may include a current collector plate 70. The current collector plate 70 may be electrically connected to the second electrode of the electrode assembly 10. The current collector plate 70 may be coupled to the second uncoated portion 12 of the second electrode. The current collector plate 70 may be coupled to the inner surface of the side wall of the battery housing 20. The current collector plate 70 may be interposed between the side wall of the battery housing 20 and the insulating member 60.

[0058] Next, a method for manufacturing a battery according to one embodiment of the present invention will be described with reference to Figures 1 to 8.

[0059] A battery manufacturing method according to one embodiment of the present invention may include a coupling step, an insertion step, and a riveting step.

[0060] The coupling step may be the step of coupling the current collector terminal 30, which includes the electrical connection portion 31 and the terminal portion 32, to one surface of the electrode assembly 10.

[0061] The insertion step may be a step in which the assembly including the current collector terminal 30 and the electrode assembly 10 is inserted into the battery housing 20 through an opening formed on one side of the battery housing 20 so that at least a portion of the terminal portion 32 is exposed to the outside of the battery housing 20 through a closing portion provided on the opposite side of the opening.

[0062] The riveting step may be a step of riveting the terminal portion 32 exposed to the outside of the battery housing 20 to the closing portion of the battery housing 20.

[0063] On the other hand, the coupling step may include coupling a gasket 40, which includes a first gasket portion 41 configured to cover the electrical connection portion 31 and a second gasket portion 42 configured to cover the terminal portion 32, to the current collection terminal 30.

[0064] The aforementioned riveting step may be a step in which the terminal portion 32 and the second gasket portion 42 are riveted together to the closing portion of the battery housing 20 and fixed in place.

[0065] Next, with reference to Figures 9 and 10, a battery pack 3 and an automobile 5 according to one embodiment of the present invention will be described, respectively.

[0066] Figure 9 shows a battery pack according to one embodiment of the present invention, and Figure 10 shows an automobile according to one embodiment of the present invention.

[0067] Referring to Figure 9, a battery pack 3 according to one embodiment of the present invention may include at least one of the batteries 1 of the present invention as described above. The battery 1 may be housed in a pack housing 2. The battery pack 3 may include components for the electrical connection of the battery 1 and / or a battery management system (BMS) configured to control the charging and discharging of the battery 1.

[0068] Next, referring to Figure 10, an automobile 5 according to one embodiment of the present invention includes at least one battery pack 3. The automobile 5 may be configured to operate by receiving power from the battery pack 3. The automobile 5 may be, for example, a hybrid electric vehicle (HEV) or an electric vehicle (EV).

[0069] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and it goes without saying that various modifications and variations are possible within the equivalent scope of the technical idea of ​​the present invention and the following claims by persons with ordinary skill in the art to which the present invention pertains. [Explanation of symbols]

[0070] 1 Battery 2-pack housing 3 Battery Packs 5. Automobile 10 Electrode assembly 11. First uncoated area 12. Second uncoated area F segmental piece C Winding center hole 20 Battery Housing 30 Current collector terminal 31 Electrical connection 32 Terminal section 32a Flange section 40 Gasket 41. First gasket section 42 Second gasket section 50 Battery Cover 60 Insulating material 70 Current collector plate

Claims

1. An electrode assembly comprising: a first electrode having a first uncoated portion; a second electrode having a second uncoated portion and having polarity opposite to that of the first electrode; and a separation membrane interposed between the first electrode and the second electrode; A battery housing configured to house the electrode assembly through an opening formed on one side and to be electrically connected to the second electrode, A current collector terminal configured to be electrically connected to the first electrode and electrically insulated from the battery housing, The current collector terminal includes an electrical connection portion configured to be coupled to one surface of the electrode assembly on the closed portion side of the battery housing provided on the opposite side of the opening, and a terminal portion extending from the electrical connection portion and configured so that at least a portion is exposed to the outside of the battery housing through the closed portion, Includes a battery.

2. The battery according to claim 1, characterized in that the electrical connection portion and the terminal portion are provided integrally.

3. The aforementioned electrical connection part is The battery according to claim 1, characterized in that it is interposed between the electrode assembly and the closing portion and is coupled to the first uncoated portion of the electrode assembly.

4. The aforementioned terminal portion is The battery according to claim 1, characterized in that it is configured to be riveted to the outer surface of the closed portion.

5. The aforementioned battery is The battery according to claim 1, characterized in that it includes a gasket interposed between the current collection terminal and the battery housing.

6. The aforementioned gasket is A first gasket portion interposed between the electrical connection portion and the closing portion inside the battery housing, A second gasket portion interposed between the terminal portion and the closing portion outside the battery housing, The battery according to claim 5, including the battery described in claim 5.

7. The battery according to claim 6, characterized in that the first gasket portion and the second gasket portion are integrally provided.

8. The second gasket portion is, The battery according to claim 6, characterized in that it is configured to be riveted to the outer surface of the closing portion together with the terminal portion.

9. The aforementioned gasket is The battery according to claim 6, characterized in that it includes a third gasket portion that extends from the outer periphery of the first gasket portion and is interposed between the outer periphery of the electrode assembly and the side wall portion of the battery housing.

10. The battery according to claim 9, characterized in that the third gasket portion and the first gasket portion are integrally provided.

11. The aforementioned battery is The battery according to claim 1, characterized in that it includes a battery cover configured to cover the opening portion of the battery housing.

12. A battery pack comprising the battery described in any one of claims 1 to 11.

13. An automobile comprising the battery pack described in claim 12.

14. A coupling step involves coupling a current collector terminal, including an electrical connection part and a terminal part, to one surface of the electrode assembly, Insertion step: Insert the assembly, which includes the current collector terminal and the electrode assembly, into the battery housing through an opening formed on one side of the battery housing, such that at least a portion of the terminal is exposed to the outside of the battery housing through a closing portion provided on the opposite side of the opening; A riveting step in which the terminal portion exposed on the outside of the battery housing is riveted to the closing portion, A method for manufacturing batteries, including

15. The aforementioned coupling step is The step includes connecting a gasket, which includes a first gasket portion configured to cover the electrical connection portion and a second gasket portion configured to cover the terminal portion, to the current collector terminal. The aforementioned riveting stage is The method for manufacturing a battery according to claim 14, characterized in that the terminal portion and the second gasket portion are riveted together to the closing portion.

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