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Title:
BATTERY
Document Type and Number:
Japanese Patent JP2013109858
Kind Code:
A
Abstract:

To suppress a short-circuit failure that occurs between an uncoated part of a foil-shaped positive electrode plate and a foil-shaped negative electrode plate of a battery as much as possible.

In this battery, a power generating element 3 having a foil-shaped positive electrode plate and a foil-shaped negative electrode plate on which an active material layer is formed are laminated with a separator held between them is provided; non-formation portions 3a, 3b where the active material layer is not formed on the foil-shaped positive electrode plate and the foil-shaped negative electrode plate are disposed at the end part of the power generating element 3 in the set direction thereof; and the non-formation portion 3a of the foil-shaped positive electrode plate and the non-formation portion 3b of the foil-shaped negative electrode plate are located on the mutually opposite sides in the set direction, and are disposed while projecting from the separator and the facing foil-shaped negative electrode plate or the foil-shaped positive electrode plate in the set direction. In the separator disposed from a first end part located on the non-formation portion 3a side of the foil-shaped positive electrode to a second end part located on the non-formation portion 3b side of the foil-shaped negative electrode plate, pressing means PS for causing the first end part to be pressed more strongly than the second end part is.


Inventors:
Yamafuku, Taro
Sasaki, JO
Application Number:
JP2011000251867
Publication Date:
June 06, 2013
Filing Date:
November 17, 2011
Export Citation:
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Assignee:
GS YUASA CORP
International Classes:
H01M10/04; H01M2/02; H01M2/10; H01M2/14
Domestic Patent References:
JP2008108457A2008-05-08
JP2011150961A2011-08-04
JPH07130393A1995-05-19
JPH03276557A1991-12-06
JP2010146759A2010-07-01
JP2008108457A2008-05-08
Attorney, Agent or Firm:
前井 茂樹



 
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