Battery container and method of fabricating same

A technology of a battery container and a manufacturing method, which is applied to batteries, manufacturing tools, lithium batteries, etc., can solve problems such as welding defects and protruding parts burn-through, and achieve the effect of improving welding reliability.

Active Publication Date: 2014-08-27
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the manufacturing method shown in the above-mentioned Patent Document 1, for example, when the protrusion is small

Method used

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  • Battery container and method of fabricating same
  • Battery container and method of fabricating same
  • Battery container and method of fabricating same

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 as well as figure 2 It is a diagram showing a schematic configuration of a battery container according to an embodiment of the present invention.

[0035] The battery container 10 according to the present embodiment includes: a case member 1 having one opening and accommodating battery components therein; and a sealing member 2 for closing the opening 11 . A positive current collector terminal 3 to which a positive external terminal 6 is connected and a negative current collector terminal 4 to which a negative external terminal 7 is connected are respectively attached to the sealing member 2 .

[0036] An electrode body 5 is connected to the lower side of the positive electrode current collector terminal 3 and the negative electrode current collector terminal 4 . Furthermore, the electrode body 5 connected to the lower side of the positive electrode current co...

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Abstract

A battery container (10) comprises a case member (1) which is opened on one end, and a sealing member (2) for closing the opening. The case member (1) and the sealing member (2) are brought into contact, a welding beam is projected, welding a weld part (13) thereupon, and an underfill part (24) is formed in the vicinity thereof. The case member (1) and the sealing member (2) are welded such that the weld part (13) reaches the underfill part (24). It would be permissible for the width of the underfill part (24) in the direction of the projection of the welding beam to be 1/3 or more of the melt depth of the weld part (13).

Description

technical field [0001] The present invention relates to a battery container in which a case member with one opening and a sealing member for closing the opening are joined by welding, and a method for manufacturing the same. Background technique [0002] In recent years, various batteries have been used as power sources for mobile terminals, electric vehicles, hybrid vehicles, and the like, and various battery containers for the batteries have been proposed. For example, there is known a method of manufacturing a battery container that includes a case member that has an opening on one side and accommodates a battery component therein, a sealing member that closes the opening, and connects the protruding portion of the case member. It is butted against the protruding part of the sealing member and joined by welding (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2009-146645 [0004] However, in the manufacturing method di...

Claims

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Application Information

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IPC IPC(8): H01M2/02H01M2/04H01M50/103H01M50/169
CPCH01M2220/20H01M2/0473H01M2/0426H01M2/0439H01M2/024H01M10/052H01M2/0217Y02T10/7011B23K26/206H01M50/103H01M50/169H01M50/15Y02E60/10Y02P70/50Y02T10/70
Inventor 川濑聪美
Owner TOYOTA JIDOSHA KK
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