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:
Jun. 28, 2016
Filed:
Aug. 02, 2012
Satoru Hommura, Chiyoda-ku, JP;
Junichi Tayanagi, Chiyoda-ku, JP;
Tetsuji Shimohira, Chiyoda-ku, JP;
Satoru Hommura, Chiyoda-ku, JP;
Junichi Tayanagi, Chiyoda-ku, JP;
Tetsuji Shimohira, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
A polymer electrolyte membrane includes: (A) an ion exchange resin comprising cation exchange groups which comprise protons; (B) a cerium ion; and (C) at least one second ion selected from the group consisting of a cesium ion and a rubidium ion. A proportion of the cerium ion to the number of the cation exchange groups (100 mol %) is from 0.7 to 30 mol % such that some of the protons in the cation exchange groups are ion-exchanged by the cerium ion. A proportion of the at least one second ion to the number of the cation exchange groups (100 mol %) is from 0.2 to 15 mol % such that some of the protons in the cation exchange groups are ion-exchanged by the at least one second ion.