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Title:
LITHIUM SECONDARY CELL
Document Type and Number:
Japanese Patent JP2002075455
Kind Code:
A
Abstract:

To provide a lithium secondary cell with excellent safety and volume efficiency, with a structure capable of reducing cost, enabled to obtain an optional voltage according to the number of lamination units.

A structure successively laminating an aluminum current collector 1a, a positive pole binder 1b, a polymer electrolyte layer 3, a negative pole binder layer 2b, and a copper current collector 2a, is formed as one lamination unit. For the cell, enclosing a plurality of the unit lamination units formed by making non-coated surfaces 1c, 2c of the current collectors of the positive pole 1 and negative pole 2 contact with each other inside an outer case, an optional cell voltage is obtained by laminating the lamination units, further, safety is improved and manufacturing cost is reduced.


Inventors:
Uchino, Hideo
Ozaki, Yoshiyuki
Morita, Teruyoshi
Application Number:
JP2000000253731
Publication Date:
March 15, 2002
Filing Date:
August 24, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01M2/02; H01M4/13; H01M4/131; H01M4/133; H01M4/505; H01M4/525; H01M4/64; H01M10/05; H01M10/052; H01M10/0525; H01M10/0565; H01M10/058; (IPC1-7): H01M10/40; H01M2/02; H01M4/58; H01M4/64; H01M10/38
Domestic Patent References:
JPH087926A1996-01-12
JPH11233076A1999-08-27
JPH0454148U1992-05-08
JPH0922735A1997-01-21
JPH11238528A1999-08-31
Attorney, Agent or Firm:
岩橋 文雄 (外2名)



 
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