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:
Dec. 12, 2006
Filed:
Feb. 20, 2002
Minoru Ishikawa, Fukushima-ken, JP;
Kazuhiko Shimizu, Fukushima-ken, JP;
Takashi Wakahoi, Fukushima-ken, JP;
Shuji Morinishi, Fukushima-ken, JP;
Naohiro Sonobe, Fukushima-ken, JP;
Akio Hoshi, Fukushima-ken, JP;
Minoru Ishikawa, Fukushima-ken, JP;
Kazuhiko Shimizu, Fukushima-ken, JP;
Takashi Wakahoi, Fukushima-ken, JP;
Shuji Morinishi, Fukushima-ken, JP;
Naohiro Sonobe, Fukushima-ken, JP;
Akio Hoshi, Fukushima-ken, JP;
Kureha Corporation, Tokyo, JP;
Abstract
An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5–60 wt. % and 40–95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.