Title:
NONAQUEOUS BATTERY
Document Type and Number:
Japanese Patent JP3805851
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve electric characteristics such as ion permeability and liquid holding property and various characteristics such as the prevention of an internal short circuit by manufacturing wet paper from cellulose, and drying it, while the void structure of the wet paper is maintained to form a separator.
SOLUTION: Water held in a void structure between cellulose fibers in a wet paper state is dried by solvent substitution or freeze drying, or cellulose fibers are dispersed in an organic solvent to manufacture wet paper, and the organic solvent in the wet paper is volatilized for drying. The occurrence of hydrogen bonding is suppressed, and the void structure existing in the wet paper is kept as it is. A porous separator having fine through holes, a low density, a high density, and high airtightness, practically the porous high- airtightness separator having the thickness of 100μm or below and the airtightness of 1000sec/100cc or above, is obtained. This separator is used to manufacture a nonaqueous battery.
Inventors:
Taiji Mizobuchi
Qinsenji Teruyuki
Qinsenji Teruyuki
Application Number:
JP3296197A
Publication Date:
August 09, 2006
Filing Date:
January 31, 1997
Export Citation:
Assignee:
Nippon Kodoshi Paper Industry Co., Ltd.
International Classes:
D21H11/18; H01M2/16; D21H11/00; H01M2/18; (IPC1-7): H01M2/16; H01M2/18; //D21H11/18
Domestic Patent References:
| JP57115705A | ||||
| JP57115706A | ||||
| JP57115708A | ||||
| JP57115709A |
Attorney, Agent or Firm:
Mikihito Tanaka