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:
Jul. 02, 2013
Filed:
Feb. 21, 2011
Chihiro Fujii, Chiba, JP;
Yasuhiro Oshima, Chiba, JP;
Takeaki Kishimoto, Chiba, JP;
Rieko Kobayashi, Chiba, JP;
Akiko Taira, Chiba, JP;
Jun-ichi Ozaki, Kiryu, JP;
Haruo Kumagai, Sapporo, JP;
Chihiro Fujii, Chiba, JP;
Yasuhiro Oshima, Chiba, JP;
Takeaki Kishimoto, Chiba, JP;
Rieko Kobayashi, Chiba, JP;
Akiko Taira, Chiba, JP;
Jun-ichi Ozaki, Kiryu, JP;
Haruo Kumagai, Sapporo, JP;
National University Corporation Gunma University, Gunma, JP;
National University Corporation Hokkaido University, Hokkaido, JP;
Nisshinbo Holdings Inc., Tokyo, JP;
Abstract
Provided is a hydrogen-storing carbon material with improved hydrogen storage capacity. The hydrogen-storing carbon material has a total pore volume of 0.5 cm/g or more, and a ratio of a total mesoporous volume to a total microporous volume per unit weight of 5 or more. In addition, the hydrogen-storing carbon material may have a nitrogen content of 0.5 wt % or more and less than 20 wt %. In addition, the hydrogen-storing carbon material may have a stable potential of −1.28 V or more when a cathode current with respect to the hydrogen-storing carbon material is held at 1,000 mA/g in electrochemical measurement by chronopotentiometry involving using the hydrogen-storing carbon material in a working electrode in a three-electrode method.