Title:
NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3236170
Kind Code:
B2
Abstract:
PURPOSE: To provide a negative electrode for a nonaqueous electrolyte secondary battery with high energy density, excellent quick charge/discharge performance, and low capacity deterioration attendant on charge/discharge cycles by constituting with a molding containing a specified carbon material and having a specified plane peak intensity ratio.
CONSTITUTION: A negative electrode is constituted with a molding containing a carbon material (example: artificial graphite) with a spacing of (002) planes as determined by Cu-Kα source X-ray wide angle diffraction of 3.40&angst or less and a crystal size in the direction of (c) axis of 100&angst or more, and in which the ratio of peak intensity in (100) planes as determined by Cu-Kα source X-ray wide angle diffraction to peak intensity in (002) planes is 0.5/100-2.5/100. The negative electrode is manufactured by forming a pasty mixture containing the carbon material and 10-50wt.% water on the surface of a negative current collector, then heating them.
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Inventors:
Yasuhiko Bitoh
Toshihide Murata
Masaki Hasegawa
Shuji Ito
Toshihide Murata
Masaki Hasegawa
Shuji Ito
Application Number:
JP21151294A
Publication Date:
December 10, 2001
Filing Date:
September 05, 1994
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01M10/05; C01B31/02; C01B31/04; H01M4/133; H01M4/1393; H01M4/583; (IPC1-7): H01M4/02; H01M4/04; H01M4/58
Domestic Patent References:
| JP461747A | ||||
| JP5121066A | ||||
| JP636760A | ||||
| JP6295744A |
Attorney, Agent or Firm:
Kazuo Ishii