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Title:
NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2006012646
Kind Code:
A
Abstract:

To provide a negative electrode for a nonaqueous electrolyte secondary battery having high current collection capability, capable of preventing loss of an active material, of ensuring current collection capability of the active material even when charge and discharge are repeated, and of improving a cycle life, and having high energy density.

This negative electrode 10 comprises: a pair of front and back current-collecting surface layers 3a and 3b; and an active material layer 2 interlaid and disposed between the surface layers. Each of the surface layers 3a and 3b has multiple minute voids 4 opening in its surface and communicating with the active material layer 2. The negative electrode does not have a current-collecting thick-film conductive material. The active material layer 2 is formed by electrolytic plating.


Inventors:
MUSHA SHINICHI
YASUDA KIYOTAKA
Application Number:
JP2004188875A
Publication Date:
January 12, 2006
Filing Date:
June 25, 2004
Export Citation:
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Assignee:
MITSUI MINING & SMELTING CO
International Classes:
H01M4/02; H01M4/13; H01M4/134; H01M4/139; H01M4/1395; H01M4/38; H01M4/66; H01M10/05; H01M10/052; H01M10/0566
Attorney, Agent or Firm:
Osamu Hatori



 
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