Metal container with seamed and sealed opening and battery using same
By adopting a sandwich design of a roll sealing structure and sealing ring between the container main body and the lid of the battery can, the problem of low sealing of the battery can be solved, and better sealing and efficient operation of the battery pack are achieved.
Patent Information
- Application Number
- CN202422390259.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The sealing performance between the positive cap and the tank body of the existing battery can is not high, which can easily lead to electrolyte leakage and affect the charging and discharge efficiency of the battery pack.
The mouth-turn sealing structure is adopted, including the rolling sealing structure and mating structure of the container main body and the cover body. The sealing ring is closely contacted in the mezzanine space to ensure the sealing of the container.
It improves the sealing effect of the battery can, prevents electrolyte leakage, and improves the charging and discharging utilization rate of the battery pack.
Smart Images

Figure CN223285115U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a metal container with a rolled seal at the mouth and a battery using the container, in particular to a rolled seal battery can for new energy vehicles, belonging to the technical field of battery packaging. Background Art
[0002] As the power source for new energy vehicles, battery packs contain multiple battery modules, each of which is composed of multiple battery cells. Currently, the mainstream battery cell types are round and square; these two types account for the majority of the market. Round batteries are mainly divided into large and small round types. Large round batteries consist of positive and negative electrodes, as well as an internal electrolyte. The outer shell of the battery cell is a battery can, with the positive electrode at one end and the negative electrode at the other. The electrolyte is placed inside the can.
[0003] In the prior art, a battery can generally consists of a can body and two covers, positive and negative. The positive cover is generally sealed and contacted with the can body by riveting the poles, and the negative cover is generally connected to the can body by welding. The reliability and sealing of the welding joints are not high, and problems such as cover breakage, poor contact at the connection and air leakage are prone to occur. As a result, the gas and electrolyte generated by the reaction of the electrolyte during the battery charging and discharging process leak out through the poor sealing and corrode the battery pack, thereby reducing the charging and discharging utilization rate of the battery pack. Utility Model Content
[0004] The main purpose of the utility model is to provide a metal container with a mouth-sealed seal and a battery using the container, thereby overcoming the deficiencies in the prior art.
[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solutions adopted by the utility model include:
[0006] A first aspect of an embodiment of the present invention provides a metal container with a mouth-sealed seal, comprising a container body and a container lid, wherein the container body has a container cavity and a container mouth communicating with the container cavity, the container lid covers the container mouth of the container body, and the container lid and the container body are fixedly and sealedly connected via a sealing connection structure, wherein the sealing connection structure comprises a sealing structure, a sealing mating structure, and a sealing ring.
[0007] The roll-sealing structure is provided on the container body, and the inner side surface of the roll-sealing structure facing the container cavity has a protrusion structure and a first groove structure arranged adjacent to each other in sequence along the axial direction of the container body, and the protrusion structure is provided on a side of the first groove structure facing away from the container opening;
[0008] The roll-sealing mating structure is disposed on the container lid, and at least a selected portion of the roll-sealing mating structure is disposed within the first groove-shaped structure. The roll-sealing mating structure and the roll-sealing structure have at least two mutually interfering regions, the at least two interfering regions being located on either side of the first groove-shaped structure, and the at least two interfering regions being located on either side of the roll-sealing mating structure along the axial direction of the container body, such that the roll-sealing mating structure and the roll-sealing structure are fixed in the axial direction of the container body, wherein one of the interfering regions is a contact region between the roll-sealing mating structure and the protruding structure.
[0009] In addition, a closed interlayer space is formed between the roll sealing matching structure and the first groove-shaped structure. The sealing ring is arranged in the closed interlayer space. The sealing ring is in close contact with the roll sealing structure and the selected part of the roll sealing matching structure, so that the roll sealing structure and the roll sealing matching structure are fixed in the radial direction of the container body.
[0010] A second aspect of the embodiment of the present utility model provides a battery, wherein the battery shell of the battery is the metal container with the mouth rolled and sealed.
[0011] Compared with the prior art, the advantages of the present invention include: the structure of a metal container with a mouth roll seal provided by the embodiment of the present invention is simpler, and a good sealing effect can be achieved through a simple structure, thereby improving the airtightness of the container and ensuring that the medium inside the container will not leak. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0013] Figure 1 This is a schematic diagram of a partial cross-sectional structure of the connection between the can body and the cover of a battery can provided in an embodiment of the present utility model;
[0014] Figure 2 It is a schematic cross-sectional structural diagram of a battery can body and a cover body provided in an embodiment of the present invention before being crimped and connected. DETAILED DESCRIPTION
[0015] In view of the shortcomings of the existing technology, the inventors of this case have proposed the technical solution of this utility model after long-term research and extensive practice. The following will further explain this technical solution, its implementation process and principles, etc. with reference to the accompanying drawings and specific implementation examples.
[0016] A first aspect of an embodiment of the present invention provides a metal container with a mouth-sealed seal, comprising a container body and a container lid, wherein the container body has a container cavity and a container mouth communicating with the container cavity, the container lid covers the container mouth of the container body, and the container lid and the container body are fixedly and sealedly connected via a sealing connection structure, wherein the sealing connection structure comprises a sealing structure, a sealing mating structure, and a sealing ring.
[0017] The roll-sealing structure is provided on the container body, and the inner side surface of the roll-sealing structure facing the container cavity has a protrusion structure and a first groove structure arranged adjacent to each other in sequence along the axial direction of the container body, and the protrusion structure is provided on a side of the first groove structure facing away from the container opening;
[0018] The roll-sealing mating structure is disposed on the container lid, and at least a selected portion of the roll-sealing mating structure is disposed within the first groove-shaped structure. The roll-sealing mating structure and the roll-sealing structure have at least two mutually interfering regions, the at least two interfering regions being located on either side of the first groove-shaped structure, and the at least two interfering regions being located on either side of the roll-sealing mating structure along the axial direction of the container body, such that the roll-sealing mating structure and the roll-sealing structure are fixed in the axial direction of the container body, wherein one of the interfering regions is a contact region between the roll-sealing mating structure and the protruding structure.
[0019] In addition, a closed interlayer space is formed between the roll-sealing matching structure and the first groove-shaped structure. The sealing ring is arranged in the closed interlayer space. The sealing ring is in close contact with the second groove wall and the selected part of the roll-sealing matching structure, so that the roll-sealing structure and the roll-sealing matching structure are fixed in the radial direction of the container body.
[0020] Furthermore, the first groove-like structure has a first groove wall and a second groove wall arranged at an angle, the first groove wall is smoothly connected to the convex surface of the convex structure, and the second groove wall is inclined in the direction toward the bottom of the container body, wherein the other interference area is the contact area between the end part of the second groove wall and the roll sealing matching structure.
[0021] Furthermore, the roll sealing matching structure is also in contact with the first groove wall and the second groove wall.
[0022] Furthermore, the angle formed by the first groove wall and the second groove wall is an acute angle.
[0023] Furthermore, the first groove wall is parallel to the axis of the container body, and the second groove wall intersects with the axis of the container body.
[0024] Furthermore, the first groove-shaped structure is an annular structure surrounding the container mouth.
[0025] Furthermore, the protruding structure is an annular structure arranged around the container opening.
[0026] Furthermore, the roll sealing structure is located on the top of the container body.
[0027] Furthermore, the roll sealing matching structure also has a second groove-shaped structure, which encloses the first groove-shaped structure to form the enclosed interlayer space, and the second groove-shaped structure has a third groove wall and a fourth groove wall set at an angle, and the sealing ring is in close contact with at least the second groove wall and the third groove wall, wherein the other interference area is the contact area between the end part of the second groove wall and the fourth groove wall.
[0028] Furthermore, the enclosed interlayer space is formed by enclosing the second groove wall and the third groove wall and the fourth groove wall of the second groove-shaped structure.
[0029] Furthermore, the second groove wall, the third groove wall, and the fourth groove wall intersect with each other.
[0030] Furthermore, the fourth groove wall is arranged to be inclined in a direction away from the bottom of the container body.
[0031] Furthermore, the third groove wall is parallel to the axis of the container body, and the fourth groove wall intersects with the axis of the container body.
[0032] Furthermore, the angle formed by the third groove wall and the fourth groove wall is an acute angle.
[0033] Furthermore, the second groove-shaped structure is an annular structure extending along the circumference of the container cover.
[0034] Furthermore, the roll-sealing matching structure is located at the edge of the container cover.
[0035] Furthermore, the second groove-shaped structure is located at the outer edge area of the roll-sealing matching structure.
[0036] In a more specific embodiment, the roll-sealing structure includes a first roll-sealing segment, a second roll-sealing segment, a third roll-sealing segment, and a fourth roll-sealing segment connected in sequence, the first roll-sealing segment is fixedly connected to the container wall of the container body, the protruding structure is located on the inner side of the first roll-sealing segment facing the container cavity, the second roll-sealing segment is arranged at an angle to the fourth roll-sealing segment, the second roll-sealing segment, the third roll-sealing segment, and the fourth roll-sealing segment enclose a first groove-shaped structure, and the first groove wall and the second groove wall of the first groove-shaped structure are respectively correspondingly arranged in the second roll-sealing segment and the fourth roll-sealing segment;
[0037] The roll-sealing fitting structure includes a first roll-sealing fitting segment, a second roll-sealing fitting segment, a third roll-sealing fitting segment, and a fourth roll-sealing fitting segment connected in sequence. The first roll-sealing fitting segment is fixedly connected to the container cover body of the container cover. The second roll-sealing fitting segment and the fourth roll-sealing fitting segment are arranged at an angle. The second roll-sealing fitting segment, the third roll-sealing fitting segment, and the fourth roll-sealing fitting segment enclose a second groove-shaped structure.
[0038] At least the tail of the fourth roll-sealing fitting section is arranged in the first groove-shaped structure, the fourth roll-sealing fitting section is tightly fitted with the second roll-sealing section and the fourth roll-sealing section, the third roll-sealing fitting section is in conflict with the raised structure on the first roll-sealing section, and the fourth roll-sealing fitting section is in conflict with the second roll-sealing fitting section. A closed interlayer space is formed between the fourth roll-sealing section, the second roll-sealing fitting section, the third roll-sealing fitting section and the fourth roll-sealing fitting section, and the sealing ring is in conflict with the fourth roll-sealing section, the second roll-sealing fitting section and the fourth roll-sealing fitting section.
[0039] In a more specific embodiment, the first sealing section is a curved surface section that bends toward the container cavity along the radial direction of the container cavity, the second sealing section is a cylindrical section parallel to the container wall, the third sealing section is an arcuate surface section that bends in a direction away from the container cavity, and the fourth sealing section is a conical surface section that is inclined in a direction toward the container cavity.
[0040] Furthermore, the first sealing fitting section is a planar section, the second sealing fitting section is a curved section bent in a direction away from the container cavity, the third sealing fitting section is an arcuate section bent in a direction toward the container cavity, and the fourth sealing fitting section is a cylindrical section parallel to the container wall.
[0041] Furthermore, the sealing structure is integrated with the container wall.
[0042] Furthermore, the crimping structure is integrated with the container cover.
[0043] Furthermore, the sealing ring is a flexible structure, and the sealing ring located in the closed interlayer space is in an elastically compressed state.
[0044] Furthermore, the container includes a battery shell.
[0045] A second aspect of the embodiment of the present utility model provides a battery, wherein the battery shell of the battery is the metal container with the mouth rolled and sealed.
[0046] The following will further explain the technical solution, its implementation process and principles with reference to the accompanying drawings and specific implementation cases.
[0047] Example 1
[0048] A battery can, preferably an aluminum can, includes a can body 1 (i.e., the aforementioned container body, hereinafter the same) and a cover 2 (i.e., the aforementioned container cover, hereinafter the same). The top of the can body 1 is a can mouth (i.e., the aforementioned container mouth, hereinafter the same), and the cover 2 covers the can mouth of the can body 1. The container cover and the container body are fixedly and sealedly connected via a sealing connection structure.
[0049] In this embodiment, the sealing connection structure includes a roll sealing structure, a roll sealing matching structure and a sealing ring 3. The roll sealing structure is arranged on the top of the container body and around the tank mouth. The roll sealing matching structure is arranged on the four edges of the cover body 2. Part of the roll sealing matching structure is embedded in the roll sealing structure and fixedly matched with the roll sealing structure. The sealing ring 3 is arranged between the roll sealing structure and the roll sealing matching structure, and is sealed and fitted with the roll sealing structure and the roll sealing matching structure, thereby realizing the fixed and sealed combination of the roll sealing structure and the roll sealing matching structure.
[0050] In this embodiment, the roll sealing structure includes a first roll sealing segment 111, a second roll sealing segment 112, a third roll sealing segment 113 and a fourth roll sealing segment 114 connected in sequence. The first roll sealing segment 111 is fixedly connected to the container wall of the container body. The first roll sealing segment 111, the second roll sealing segment 112, the third roll sealing segment 113 and the fourth roll sealing segment 114 are preferably an annular structure coaxially arranged with the can body 1. The first roll sealing segment 111 is bent inwardly along the radial direction of the can body 1 as a whole, and a convex structure is formed on the side facing the interior of the can body 1. The second roll sealing segment 112 is parallel to the wall of the battery can, and the fourth roll sealing segment 114 is inclined toward the bottom of the battery can as a whole. The third roll sealing segment 113 is an arc structure smoothly connecting the second roll sealing segment 112 and the fourth roll sealing segment 114. The second roll sealing segment 112, the third roll sealing segment 113 and the fourth roll sealing segment 114 enclose a first groove-shaped structure.
[0051] The roll sealing matching structure includes a first roll sealing matching section 210, a second roll sealing matching section 211, a third roll sealing matching section 212 and a fourth roll sealing matching section 213 connected in sequence. The first roll sealing matching section 210, the second roll sealing matching section 211, the third roll sealing matching section 212 and the fourth roll sealing matching section 213 are preferably an annular structure coaxially arranged with the cover body 2, wherein the first roll sealing matching section 210 is fixedly connected to the main part of the cover body 2, and the first roll sealing matching section 210 is a planar structure and is coaxial with the cover body 2. The second sealing fitting section 211 is parallel to the main body of the battery can, the second sealing fitting section 211 is inclined toward the bottom of the battery can as a whole and curved toward the top of the battery can, the fourth sealing fitting section 213 is parallel to the wall of the battery can and extends upward away from the bottom of the battery can, the third sealing fitting section 212 is an arc-shaped structure smoothly connecting the second sealing fitting section 211 and the fourth sealing fitting section 213, and the second sealing fitting section 211, the third sealing fitting section 212, and the fourth sealing fitting section 213 enclose a second groove-shaped structure;
[0052] The fourth roll-sealing fitting section 213 is arranged in the first groove-shaped structure. The fourth roll-sealing fitting section 213 is parallel to the second roll-sealing fitting section 112 and fits in the radial direction of the battery can. In addition, the fourth roll-sealing fitting section 213 is also in close contact with the fourth roll-sealing fitting section 114. In the axial direction of the battery can, the bottom of the third roll-sealing fitting section 212 conflicts with the first roll-sealing fitting section 111, and the end of the fourth roll-sealing fitting section 114 conflicts with the second roll-sealing fitting section 211. A closed interlayer space is enclosed between the fourth roll-sealing fitting section 114, the second roll-sealing fitting section 211, the third roll-sealing fitting section 212, and the fourth roll-sealing fitting section 213. The sealing ring 3 conflicts with the fourth roll-sealing fitting section 114, the second roll-sealing fitting section 211, and the fourth roll-sealing fitting section 213.
[0053] In this embodiment, the angle formed by the tangent lines of the second and fourth sealing segments 112, 114 is an acute angle. The specific angle can be adjusted according to requirements such as structural stability and is not specifically limited here. In addition, the specific lengths and length ratios of the first, second, third, and fourth sealing segments 111, 112, 113, and 114 can be set according to specific structural stability requirements. It should be noted that, in the axial direction of the battery can, the end of the fourth sealing segment 114 is located between the connection between the second sealing segment 112 and the first and third sealing segments 111, 113. In addition, the curvature radii of the first and third sealing segments 111, 113 can be set according to specific structural requirements and are not specifically limited here.
[0054] In this embodiment, the angle formed by the tangent lines of the second and fourth sealing sections 211 and 213 is an acute angle. The specific angle can be adjusted based on requirements such as structural stability and is not specifically limited here. Furthermore, the specific lengths and length ratios of the first, second, third, and fourth sealing sections 210, 211, 212, and 213 can be set based on specific structural stability requirements. It should be noted that, in the axial direction of the battery can, the end of the fourth sealing section is located at a higher height than the end of the fourth sealing section 114. Furthermore, the radius of curvature of the second and third sealing sections 211 and 212 can be set based on specific structural requirements and is not specifically limited here.
[0055] In this embodiment, the crimping structure is integrated with the tank wall of the tank body 1, and the crimping mating structure is integrated with the lid body 2. In this embodiment, the sealing ring 3 can be a rubber ring or the like.
[0056] The metal container with a mouth roll seal provided by the embodiment of the present invention has a simpler structure and can achieve a good sealing effect through a simple structure, thereby improving the airtightness of the container and ensuring that the medium inside the container will not leak.
[0057] It should be understood that the above embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.
Claims
1. A metal container with a crimp seal, comprising a container body and a container lid, wherein the container body has a container cavity and a container opening communicating with the container cavity, the container lid covers the container opening of the container body, and the container lid and the container body are fixedly and hermetically connected via a sealing connection structure, characterized in that: The sealing connection structure includes a roll sealing structure, a roll sealing matching structure and a sealing ring. The roll-sealing structure is provided on the container body, and the inner side surface of the roll-sealing structure facing the container cavity has a protrusion structure and a first groove structure arranged adjacent to each other in sequence along the axial direction of the container body, and the protrusion structure is provided on a side of the first groove structure facing away from the container opening; The roll-sealing mating structure is disposed on the container lid, and at least a selected portion of the roll-sealing mating structure is disposed within the first groove-shaped structure. The roll-sealing mating structure and the roll-sealing structure have at least two mutually interfering regions, the at least two interfering regions being located on either side of the first groove-shaped structure, and the at least two interfering regions being located on either side of the roll-sealing mating structure along the axial direction of the container body, such that the roll-sealing mating structure and the roll-sealing structure are fixed in the axial direction of the container body, wherein one of the interfering regions is a contact region between the roll-sealing mating structure and the protruding structure. In addition, a closed interlayer space is formed between the roll sealing matching structure and the first groove-shaped structure. The sealing ring is arranged in the closed interlayer space. The sealing ring is in close contact with the roll sealing structure and the selected part of the roll sealing matching structure, so that the roll sealing structure and the roll sealing matching structure are fixed in the radial direction of the container body.
2. The metal container with a crimp seal according to claim 1, wherein: The first groove-like structure has a first groove wall and a second groove wall set at an angle, the first groove wall is smoothly connected to the convex surface of the convex structure, and the second groove wall is inclined in the direction toward the bottom of the container body, wherein the other interference area is the contact area between the end part of the second groove wall and the roll sealing matching structure.
3. The metal container with a crimp seal according to claim 2, wherein: The roll sealing matching structure is also tightly fitted with the first groove wall and the second groove wall.
4. The metal container with a crimp seal according to claim 2 or 3, characterized in that: The angle formed by the first groove wall and the second groove wall is an acute angle.
5. The metal container with a crimp seal according to claim 2 or 3, characterized in that: The first groove wall is parallel to the axis of the container body, and the second groove wall intersects the axis of the container body.
6. The metal container with a crimp seal according to claim 2, wherein: The first groove-shaped structure is an annular structure surrounding the container mouth.
7. The metal container with a crimp seal according to claim 2, wherein: The protruding structure is an annular structure arranged around the container mouth.
8. The metal container with a crimp seal according to claim 2, wherein: The roll sealing structure is located on the top of the container body.
9. The metal container with a crimp seal according to claim 3, wherein: The roll sealing matching structure also has a second groove-shaped structure, which encloses the first groove-shaped structure to form the closed interlayer space, and the second groove-shaped structure has a third groove wall and a fourth groove wall set at an angle, and the sealing ring is in close contact with at least the second groove wall and the third groove wall, wherein the other interference area is the contact area between the end part of the second groove wall and the fourth groove wall.
10. The metal container with a crimp seal according to claim 9, characterized in that: The enclosed interlayer space is formed by enclosing the second groove wall and the third groove wall and the fourth groove wall of the second groove-shaped structure.
11. The metal container with a crimp seal according to claim 9 or 10, characterized in that: The second groove wall, the third groove wall, and the fourth groove wall intersect with each other.
12. The metal container with a crimp seal according to claim 9 or 10, characterized in that: The fourth groove wall is arranged to be inclined in a direction away from the bottom of the container body.
13. The metal container with a crimp seal according to claim 12, wherein: The third groove wall is parallel to the axis of the container body, and the fourth groove wall intersects with the axis of the container body.
14. The metal container with a crimp seal according to claim 11, wherein: The angle formed by the third groove wall and the fourth groove wall is an acute angle.
15. The metal container with a crimp seal according to claim 9, wherein: The second groove-shaped structure is an annular structure extending along the circumference of the container cover.
16. The metal container with a crimp seal according to claim 15, wherein: The crimping structure is located at the edge of the container cover.
17. The metal container with a crimp seal according to claim 15 or 16, characterized in that: The second groove-shaped structure is located in the outer edge area of the crimping structure.
18. The metal container with a crimp seal according to claim 1, 2, 3, 9 or 10, characterized in that: The roll-sealing structure includes a first roll-sealing segment, a second roll-sealing segment, a third roll-sealing segment, and a fourth roll-sealing segment connected in sequence, the first roll-sealing segment being fixedly connected to the container wall of the container body, the protruding structure being located on the inner side of the first roll-sealing segment facing the container cavity, the second roll-sealing segment being arranged at an angle to the fourth roll-sealing segment, the second roll-sealing segment, the third roll-sealing segment, and the fourth roll-sealing segment enclosingly forming the first groove-shaped structure, the first groove wall and the second groove wall of the first groove-shaped structure being correspondingly arranged on the second roll-sealing segment and the fourth roll-sealing segment, respectively; The roll-sealing fitting structure includes a first roll-sealing fitting segment, a second roll-sealing fitting segment, a third roll-sealing fitting segment, and a fourth roll-sealing fitting segment connected in sequence. The first roll-sealing fitting segment is fixedly connected to the container cover body of the container cover. The second roll-sealing fitting segment and the fourth roll-sealing fitting segment are arranged at an angle. The second roll-sealing fitting segment, the third roll-sealing fitting segment, and the fourth roll-sealing fitting segment enclose a second groove-shaped structure. At least the tail of the fourth roll-sealing fitting section is arranged in the first groove-shaped structure, the fourth roll-sealing fitting section is tightly fitted with the second roll-sealing section and the fourth roll-sealing section, the third roll-sealing fitting section is in conflict with the raised structure on the first roll-sealing section, and the fourth roll-sealing fitting section is in conflict with the second roll-sealing fitting section. A closed interlayer space is formed between the fourth roll-sealing section, the second roll-sealing fitting section, the third roll-sealing fitting section and the fourth roll-sealing fitting section, and the sealing ring is in conflict with the fourth roll-sealing section, the second roll-sealing fitting section and the fourth roll-sealing fitting section.
19. The metal container with a crimp seal according to claim 18, wherein: The first sealing section is a curved surface section that bends toward the container cavity along the radial direction of the container cavity, the second sealing section is a cylindrical section parallel to the container wall, the third sealing section is an arcuate section that bends in a direction away from the container cavity, and the fourth sealing section is a conical surface section that is inclined in a direction toward the container cavity.
20. The metal container with a crimp seal according to claim 19, wherein: The first sealing fitting section is a flat section, the second sealing fitting section is a curved section that bends in a direction away from the container cavity, the third sealing fitting section is an arcuate section that bends in a direction toward the container cavity, and the fourth sealing fitting section is a cylindrical section parallel to the container wall.
21. The container according to claim 18, wherein: The seam seal structure is integral with the container wall.
22. The metal container with a crimp seal according to claim 18, wherein: The crimping structure is integral with the container lid.
23. The metal container with a crimp seal according to claim 18, wherein: The sealing ring is a flexible structure, and the sealing ring located in the closed interlayer space is in an elastically compressed state.
24. The metal container with a crimp seal according to claim 1, wherein: The container includes a battery case.
25. A battery, characterized in that: The battery case of the battery is a metal container with a mouth-sealed seal according to any one of claims 1 to 24.