Title:
PHOSPHORUS ATOM CONTAINING FLUORINATED CATIONIC EXCHANGE MEMBRANE AND PROTON-CONDUCTIVE FUEL CELL
Document Type and Number:
WIPO Patent Application WO2000063991
Kind Code:
A9
Abstract:
A novel phosphorus atom-containing fluorinated cationic exchange membrane consisting substantially of the recurring units (A): -(CF2 CF2)- and (B), wherein m is 0 or 1, n is 2 or 3, X and Y are each H or C6H4SO3H, and the ratio of the recurring units, i.e., (A)/(B) is 1.5 to 15; and a proton conductive fuel cell using the cationic exchange membrane. The cationic exchange membrane can be used for achieving a high exchange capacity required for a high energy efficiency, while securing a mechanical strength for maintaining the assembly and the performance capabilities of a fuel cell for a long period of time, which has been difficult to be achieved by a conventional perfluorosulfonic acid membrane for such a fuel cell.
Inventors:
KIMOTO KYOJI (JP)
Application Number:
PCT/JP2000/002457
Publication Date:
October 11, 2001
Filing Date:
April 14, 2000
Export Citation:
Assignee:
MIRANE CORP (JP)
PERMELEC ELECTRODE LTD (JP)
KIMOTO KYOJI (JP)
PERMELEC ELECTRODE LTD (JP)
KIMOTO KYOJI (JP)
International Classes:
B01D67/00; B01D71/32; B01D71/82; C07F9/38; C07F9/40; C08F8/12; C08F8/36; C08F214/26; C08F216/14; C08F230/02; C08J5/22; H01M8/10; (IPC1-7): H01M8/02; H01M8/10; C08F230/02; C08F214/26; C08J5/22; C07F9/40
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