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Title:
ANODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ITS MANUFACTURING METHOD, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2007227139
Kind Code:
A
Abstract:

To provide an anode for nonaqueous electrolyte secondary batter in which an active substance nucleus having a high capacity density is used and moreover, a cycle characteristics is improved as expected by controlling a gas generation caused by a carbon fiber of a conductivity source, and a high capacity and a long service life are realized.

The anode of a nonaqueous electrolyte secondary battery is composed of a mixture layer containing an active substance nucleus which can charge/discharge lithium ions and a composite anode active substance made of a carbon nano fiber (CNF) deposited on a surface of the above active substance nucleus and a CNF, whose impurities of the surface are removed, is used.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
FUJIKAWA KAZUSATO
INOUE KAORU
SHIMADA MIKIYA
Application Number:
JP2006046554A
Publication Date:
September 06, 2007
Filing Date:
February 23, 2006
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01M4/02; H01M4/04; H01M4/13; H01M4/36; H01M4/38; H01M4/48; H01M10/05
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano