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. 13, 2006
Filed:
Feb. 21, 2001
Takumi Taniguchi, Toyota, JP;
Mitsuru Nakano, Aichi, JP;
Masaya Kawasumi, Aichi, JP;
Yu Morimoto, Aichi, JP;
Naoki Hasegawa, Aichi, JP;
Takumi Taniguchi, Toyota, JP;
Mitsuru Nakano, Aichi, JP;
Masaya Kawasumi, Aichi, JP;
Yu Morimoto, Aichi, JP;
Naoki Hasegawa, Aichi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A Polymer Electrolyte Membrane is formed by hot air drying of a membrane formed with an acidic main-polymer having proton conductivity and capability of forming an electrolyte membrane (S), and then immersing it into a basic polymer solution to impregnate the membrane with the basic polymer (S). The basic polymer is introduced in a large quantity into a site acting as a proton conduction pass of the main-polymer to take charge of the proton conduction. Since in the Polymer Electrolyte Membrane, a base polymer takes charge of proton conduction as compared with the case where proton takes charge of the proton conduction as a hydrate, the base polymer shows favorable proton conductivity even in a low humidity state at an elevated temperature exceeding boiling point of water.