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Electric storage device and method for manufacturing electric storage device

A technology of a storage element and a manufacturing method, applied in the direction of electrical components, secondary battery manufacturing, final product manufacturing, etc., to achieve the effect of reducing the problem of poor welding

Inactive Publication Date: 2018-01-09
GS YUASA INT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention is proposed in order to solve the above-mentioned problems, and the purpose is to provide an electric storage element and a manufacturing method thereof capable of reducing welding defects when welding a sealing plug on a container

Method used

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  • Electric storage device and method for manufacturing electric storage device
  • Electric storage device and method for manufacturing electric storage device
  • Electric storage device and method for manufacturing electric storage device

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Embodiment approach ）

[0036] First, the structure of the electricity storage element 10 will be described.

[0037] figure 1 is a schematic perspective view showing the appearance of the storage device 10 according to the embodiment of the present invention, figure 2 It is a perspective view showing each component included in the electricity storage device 10 according to the embodiment of the present invention.

[0038] The power storage element 10 is a chargeable and dischargeable secondary battery, more specifically, a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery. The power storage element 10 is not limited to a nonaqueous electrolyte secondary battery, and may be a secondary battery other than the nonaqueous electrolyte secondary battery, or may be a capacitor.

[0039] Such as figure 1 As shown, the storage device 10 has a container 100 , a positive terminal 200 , a negative terminal 300 , and a sealing plug 400 . And, if figure 2 As shown, a positive...

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PUM

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Abstract

The invention provides an electric storage element and a method for manufacturing the electric storage element. The electric storage element (10) can reduce the problem of poor welding when welding a sealing plug on a container, and the electric storage element (10) includes a container (100) containing an electrolyte, It also includes a through hole (110a) formed in the container (100) and used for injecting electrolyte, a sealing plug (400) to block the through hole (110a), and a through-welding of the sealing plug (400) on the container (100). A through weld ( 430 ) is formed.

Description

technical field [0001] The present invention relates to an electrical storage element having a container for containing an electrolytic solution and a method for manufacturing the same. Background technique [0002] In the global study of environmental issues, the conversion of gasoline vehicles to electric vehicles has become particularly important. Therefore, studies are underway to use power storage elements such as non-aqueous electrolyte secondary batteries as electric vehicle power sources. [0003] Here, in the conventional electric storage device, a through hole is formed in the container, and the electrolyte solution is injected into the container through the through hole during manufacture, and the through hole is blocked by a sealing plug, thereby the electrolyte solution is accommodated in the container (for example, , refer to Patent Document 1). In this energy storage element, the outer edge of the sealing plug is welded to the container in a state where the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/36H01M50/636
CPCH01M10/04H01M50/636Y02E60/10Y02P70/50H01M50/60H01M10/0525
Inventor 白石悠
Owner GS YUASA INT LTD