Title:
【発明の名称】電 池
Document Type and Number:
Japanese Patent JP2512523
Kind Code:
B2
Abstract:
PURPOSE:To increase durability in charge-discharge of a secondary battery by using an amphoteric ion exchanger having cation exchange groups and anion exchange groups as a positive active material. CONSTITUTION:An amphoteric ion exchanger having cation exchange groups and anion exchange groups is used as a positive active material of a battery, especially a secondary battery. A polymer compound having cation exchange groups and anion exchange groups which perform ion exchange reaction mainly in an aqueous solution is prepared in the form of a membrane, then used as the amphoteric ion exchanger. This polymer membrane has three-dimensional crosslinked structure, and is porous and has large surface area, and contains electron-conductive fine particles. This membrane is swelled with a polar organic solvent which does not attack the ion exchange membrane, then used. The durability in charge-discharge is increased.
Inventors:
SADA TOSHIKATSU
IWAMOTO HISAHIKO
FUNADA MASATO
IWAMOTO HISAHIKO
FUNADA MASATO
Application Number:
JP10767788A
Publication Date:
July 03, 1996
Filing Date:
May 02, 1988
Export Citation:
Assignee:
TOKUYAMA CORP
International Classes:
H01M4/60; (IPC1-7): H01M4/60
Domestic Patent References:
| JPS6339916A |