DIAPHRAGM FOR REDOX FLOW BATTERY AND MANUFACTURE THEREFOR

Japanese Patent JP3859024

B2

PROBLEM TO BE SOLVED: To provide an inexpensive diaphragm which has high charging- discharging efficiency and has excellent durability by using a copolymer of a monomer unit having substantially no unsaturated bond introduced from an aliphatic hydrocarbon monomer and a monomer unit on the basis of acrylonitrile, as matrix resin.
SOLUTION: Resin obtained by adding hydrogen to a copolymer obtained by copolymerizing acrylonitrile and butadien, is cited as a copolymer. In this way, in the number of remaining unsaturated bonds, the iodine number is desirable to be 5 or less. It is suitable that a monomer unit on the basis of acrylonitrile is set to 20 to 50wt.% to the whole weight of a copolymer. Though molecular weight of the copolymer is not particularly limited, it is suitable to be normally set to a range of 50,000 to 500,000. In a diaphragm for a redox flow battery, a composition composed of this copolymer and an ion exchange resin is used by being stuck to a base material.

JP5270656	Cell stack of electrolyte circulation type battery
WO/2006/097438	FUEL CELLS
WO/2009/061682	INTEGRATED FLOW FIELD (IFF) STRUCTURE

Tatsuya Front
Hiroki Hirayama
Tomonari Todoroki

JP31993296A

December 20, 2006

November 29, 1996

Click for automatic bibliography generation  

Tokuyama Corporation
Kansai Electric Power Co., Inc.
Sumitomo Electric Industries, Ltd.

H01M8/18; B01J47/12; C08J5/22; H01M8/02; (IPC1-7): H01M8/18

JP6329815A
JP6322156A
JP6000394A
JP6080799A
JP6188005A
JP62186473A

Kaname Naganuma

Previous Patent: BOOST PRESSURE CONTROL DEVICE FOR ENGINE WITH SUPERCHARGER

Next Patent: DIAPHRAGM FOR REDOX FLOW BATTERY AND MANUFACTURE THEREFOR