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:
Apr. 07, 2015
Filed:
Nov. 01, 2011
Takeaki Kishimoto, Funabashi, JP;
Mayumi Mizushiri, Chiba, JP;
Jun-ichi Ozaki, Kiryu, JP;
Yusuke Sudo, Kanonii, JP;
Naokatsu Kannari, Kiryu, JP;
Takeaki Kishimoto, Funabashi, JP;
Mayumi Mizushiri, Chiba, JP;
Jun-ichi Ozaki, Kiryu, JP;
Yusuke Sudo, Kanonii, JP;
Naokatsu Kannari, Kiryu, JP;
National University Corporation Gunma University, Gunma, JP;
Nisshinbo Holdings Inc., Tokyo, JP;
Abstract
Provided is a carbon catalyst having an improved catalytic activity, a production method therefor, and an electrode and a battery which use the carbon catalyst. The carbon catalyst is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and metals, and includes iron and/or cobalt, and copper as the metals. Further, the carbon catalyst has a crystallinity of 41.0% or less, which is determined by X-ray diffractometry, a nitrogen atom-to-carbon atom ratio of 0.7 or more, which is determined by X-ray photoelectronic spectrometry, and an oxygen reduction-starting potential of 0.774 V (vs. NHE) or more.