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Title:
電極積層型電池
Document Type and Number:
Japanese Patent JP4211623
Kind Code:
B2
Abstract:

To provide an electrode lamination type battery in which short-circuiting of a positive electrode and a negative electrode can be prevented, the thickness of a positive electrode lead terminal side and a negative electrode lead terminal side is made uniform, and which is safe and has a high volume energy density.

In the electrode lamination type battery, the positive electrode is constructed of a positive electrode current collector 1 and a positive electrode active material layer 2 which is formed on the positive electrode current collector 1 so that at least a part of the positive electrode current collector 1 may be exposed, and the negative electrode is constructed of a negative electrode current collector 7 and a negative electrode mixture layer 6 which is formed on the negative electrode current collector 7 so that at least a part of the negative electrode current collector 7 may be exposed. Insulating covering materials 10a-10g are provided at the exposed portion of the negative electrode current collector 7 which may contact possibly the exposed portion of the positive electrode current collector 1 and/or at the exposed portion of the positive electrode current collector 1 which may contact possibly the exposed portion of the negative electrode current collector 7, and these covering materials 10a-10g are arranged so that the thickness may be uniform when the positive electrode and the negative electrode are alternately laminated.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
Mizutani Dori
Application Number:
JP2004031873A
Publication Date:
January 21, 2009
Filing Date:
February 09, 2004
Export Citation:
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Assignee:
ソニー株式会社
International Classes:
H01M4/66; H01M10/04; H01M2/26; H01M4/02; H01M4/04; H01M4/13; H01M10/0565; H01M10/0587
Domestic Patent References:
JP2000067906A
JP2002042881A
Attorney, Agent or Firm:
Masatomo Sugiura
Koichi Mori



 
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