Title:
非水電解液二次電池の製造方法
Document Type and Number:
Japanese Patent JP4904639
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a nonaqueous electrolyte secondary battery capable of inhibiting a decrease in battery performance and reducing manufacturing costs. SOLUTION: In a preparation step, a positive electrode is fabricated using a positive electrode mix mixed with a binder containing lithium manganate, graphite, and an acrylic polymer of polyacrylic acid or polyacrylic acid ester, and a negative electrode is fabricated using a negative mix mixed with a binder containing graphite or amorphous carbon, and an acrylic polymer of polyacrylic acid or polyacrylic acid ester. In a fabrication step, the positive and negative electrodes are wound via a separator made from polyethylene to fabricate a group of windings. In a drying step, it is heated and dried at reduced pressure. The binders containing the acrylic polymers absorb moisture in the positive and negative electrodes, with the moisture being eliminated in the drying step.
More Like This:
Inventors:
Kenji Nakai
Kensuke Hironaka
Kensuke Hironaka
Application Number:
JP2001179456A
Publication Date:
March 28, 2012
Filing Date:
June 14, 2001
Export Citation:
Assignee:
Shin-Kobe Electric Machinery Co., Ltd.
International Classes:
H01M10/0587; H01M4/131; H01M4/133; H01M4/1391; H01M4/1393; H01M4/62; H01M10/0525; H01M10/0566
Domestic Patent References:
| JP10261402A | ||||
| JP9265990A | ||||
| JP11238505A | ||||
| JP9115504A | ||||
| JP10189054A | ||||
| JP10270047A | ||||
| JP8287915A | ||||
| JP2000058053A | ||||
| JP8045499A |
Attorney, Agent or Firm:
Toshiaki Igarashi