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Battery, center pin, battery pack, electronic apparatus, electric tool, electric vehicle, electrical storage apparatus and electricity system

A technology for electronic equipment and batteries, applied in the field of power systems, can solve problems such as rising internal pressure of batteries, and achieve the effects of improving safety, improving degassing capacity, and improving gas release performance

Inactive Publication Date: 2013-09-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause a sharp rise in the internal pressure of the battery

Method used

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  • Battery, center pin, battery pack, electronic apparatus, electric tool, electric vehicle, electrical storage apparatus and electricity system
  • Battery, center pin, battery pack, electronic apparatus, electric tool, electric vehicle, electrical storage apparatus and electricity system
  • Battery, center pin, battery pack, electronic apparatus, electric tool, electric vehicle, electrical storage apparatus and electricity system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach （ 2

[0041] 1. First Embodiment (Example of Secondary Battery)

no. 2 approach

[0042] 2. Second Embodiment (Example of Battery Pack Using Secondary Battery)

no. 3 approach

[0043] 3. Third embodiment (an example of an electric power storage system using a secondary battery, etc.)

[0044] 4. Other implementation modes (deformation)

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Abstract

The invention provides a battery, center pin, battery pack, electronic apparatus, electric tool, electric vehicle, electrical storage apparatus and electricity system. The battery includes a spirally wound electrode body including a positive electrode and a negative electrode spirally wound, a center pin provided in the hollow portion of the spirally wound electrode body, and an exterior body configured to house the spirally wound electrode body and the center pin. The center pin includes at least one end having a plurality of cut-out portions.

Description

technical field [0001] The present invention relates to batteries, center pins, battery packs, electronic equipment, electric tools, electric vehicles, electrical storage apparatuses and power systems. Background technique [0002] Secondary batteries such as lithium ion secondary batteries have been used, for example, as power batteries for mobile devices such as laptop computers and electric tools, storage batteries for automobiles such as hybrid vehicles and battery cars, and in combination with new energy systems such as solar cells and wind power generation batteries for power storage. [0003] In the secondary battery, a cylindrical type secondary battery in which a spirally wound electrode body including a spirally wound positive electrode and a negative electrode is housed together with an electrolytic solution and the like in a case such as a cylindrical case is generally used. In a cylindrical type secondary battery, there is a center pin inserted in the hollow ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/18H01M10/0587H01M50/30H01M50/477
CPCH01M10/0525H01M10/0587H01M2200/00Y02E60/10H01M50/107H01M50/30Y02P70/50H02J7/0068Y02T10/70
Inventor 目黑健
Owner SONY CORP
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