Title:
正極集電体の製造方法
Document Type and Number:
Japanese Patent JP4077618
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a positive current collector which can form uniform high resistance layer by reducing dispersion in the resistance of the high resistance layer in each positive current collector which is used for a NAS battery which composes an same set battery. SOLUTION: The method of manufacturing the positive collector forms the high resistance layer by preparing a felt-like matrix comprising of carbon fiber or graphite fiber, stacking a cloth-like body or a cotton-like body comprising of glass fiber on the surfaces of one side in the matrix, and implanting the cloth-like body or the cotton-like body into the matrix with a needle punch. The needle punch is performed so that the total reflection light intensity relative value of the high resistance layer comes to be 25-43 if the total reflection light intensity relative value of the surface in the cloth-like body or the cotton-like body stacked on the matrix is 100.
Inventors:
Michitaka Hidaka
Masayoshi Yasui
Masayoshi Yasui
Application Number:
JP2001287606A
Publication Date:
April 16, 2008
Filing Date:
September 20, 2001
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
THE TOKYO ELECTRIC POWER COMPANY,INCORPORATED
THE TOKYO ELECTRIC POWER COMPANY,INCORPORATED
International Classes:
H01M4/80; H01M4/66; H01M10/39
Domestic Patent References:
| JP2001273924A | ||||
| JP2001266934A | ||||
| JP10188998A | ||||
| JP10154527A |
Attorney, Agent or Firm:
Ippei Watanabe