Title:
NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE BATTERY AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3428428
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a reliable nonaqueous electrolyte battery suppressing generation of dendrites, and having long life of cycle for a long term.
SOLUTION: A surface film structure the principal component of which is a material having a halite-type crystal structure is formed on the surface of a lithium sheet having lithium metal as an active material and where crystal planes of (100) are oriented by priority. Thereby, a uniform precipitation dissolution reaction, i.e., charging and discharging of the battery can be carried out, then a dendrite precipitation reaction of the lithium metal as the active material can be inhibited. Consequently, the nonaqueous electrolyte secondary battery having long life and high precision can be obtained.
Inventors:
Koji Nakagiri
Toru Matsui
Kenichi Takeyama
Toyoguchi Yoshi Toku
Toru Matsui
Kenichi Takeyama
Toyoguchi Yoshi Toku
Application Number:
JP9118898A
Publication Date:
July 22, 2003
Filing Date:
April 03, 1998
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01M4/38; H01M4/134; H01M4/1395; H01M4/62; H01M10/05; (IPC1-7): H01M4/02; H01M4/04; H01M4/38; H01M4/62
Domestic Patent References:
| JP1012218A | ||||
| JP7302617A | ||||
| JP7296851A | ||||
| JP58142771A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)