The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Mar. 20, 2009
Katsuyuki Kishi, Tokyo, JP;
Katsuyuki Kishi, Tokyo, JP;
Toppan Printing Co., Ltd., , JP;
Abstract
The present invention readily provides an electrolyte which is capable of suppressing elution of a radical-quenching material from the electrolyte and has high proton conductivity and excellent durability. The polyelectrolyte is obtainable by chemically bonding a proton-conducting polymer having protonic acid groups to a radical-quenching material having a radical-scavenging capability via moieties other than the protonic acid groups by heating at a temperature of 60° C. or more and 250° C. or less. The proton-conducting polymer is an aromatic polymer, polyether ketone or a polyether ether ketone, or phenol resin, has a sulfonic acid group, and has a hydrogen ion exchange capacity of 0.5 meq/g or more and 10 meq/g or less. The radical-quenching material has at least one methylol group in the molecule.