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:
Oct. 09, 2018
Filed:
Mar. 19, 2015
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Nippon Steel & Sumikin Chemical Co., Ltd., Tokyo, JP;
Takashi Iijima, Tokyo, JP;
Masataka Hiyoshi, Tokyo, JP;
Katsumasa Matsumoto, Tokyo, JP;
Hiroyuki Hayashida, Kitakyushu-shi, JP;
Kazuhiko Mizuuchi, Kitakyushu-shi, JP;
Takumi Kouno, Kitakyushu-shi, JP;
Masakazu Higuchi, Kitakyushu-shi, JP;
Masakazu Katayama, Kitakyushu-shi, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., Tokyo, JP;
Abstract
Provided are: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material making it possible to produce a high-performance solid polymer fuel cell in which there is little decrease in power generation performance as a result of repeated battery load fluctuation that inevitably occurs during operation of the solid polymer fuel cell; and a catalyst metal particle-supporting carbon material. The present invention relates to: a supporting carbon material for a solid polymer fuel cell, said supporting carbon material being a porous carbon material in which the specific surface area of mesopores having a pore diameter of 2-50 nm according to nitrogen adsorption measurement is 600-1,600 m/g, the relative intensity ratio (IG'/IG) of the peak intensity (IG′) of the G-band 2,650-2,700 cmrange to the peak intensity (IG) of the G-band 1,550-1,650 cmrange in the Raman spectrum is 0.8-2.2, and the peak position of the G′-band is 2,660-2,670 cm; and a catalyst metal particle-supporting carbon material.