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Title:
BATTERY
Document Type and Number:
Japanese Patent JP2007134244
Kind Code:
A
Abstract:

To provide a battery with improved cycle characteristics.

A cathode 21 and an anode 22 are laminated with an electrolyte layer 23 in between. A capacity of the anode 22 includes a capacity component by storage and emission of lithium and a capacity component by deposition and dissolution of lithium, and is expressed as a sum of both. The anode 22 is provided with anode collector 22A and an anode base material layer 22B fitted to the anode collector 22A. The anode base material layer 22B contains a polymer containing vinylidene fluoride as a component, with a content of 2% by mass or more and 4% by mass or less. The electrolyte layer 23 contains a polymer with vinylidene fluoride as a component.


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Inventors:
ICHIHASHI AKIRA
KANO GENTARO
TSUDA KARIN
Application Number:
JP2005327931A
Publication Date:
May 31, 2007
Filing Date:
November 11, 2005
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01M4/02; H01M4/133; H01M4/36; H01M4/66; H01M10/05; H01M10/052; H01M10/0565
Attorney, Agent or Firm:
Yoichiro Fujishima
Yasushi Santanzaki



 
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