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. 01, 2009
Filed:
Sep. 06, 2001
Tetsuichi Kudo, Tokyo, JP;
Masaru Miyayama, Tokyo, JP;
Keiji Sakai, Tokyo, JP;
Yasuo Takeda, Tsu, JP;
Itaru Honma, Tsukuba, JP;
Hiroshi Abe, Ibaraki, JP;
Tetsuichi Kudo, Tokyo, JP;
Masaru Miyayama, Tokyo, JP;
Keiji Sakai, Tokyo, JP;
Yasuo Takeda, Tsu, JP;
Itaru Honma, Tsukuba, JP;
Hiroshi Abe, Ibaraki, JP;
Hitachi Maxell, Ltd., Osaka, JP;
Japan as Represented by the President of the University of Tokyo, Tokyo, JP;
Abstract
An electrode material for an electrochemical device comprising a composite of a particulate conductive material and a metal oxide is prepared by mixing and dispersing the particulate conductive material with a colloidal solution of an oxide of an element in a range of from Group 3 to Group 12 in the fourth, fifth and sixth periods of the Periodic Table and heating the mixture. This composite has a high capacity even at a high current density and good filling properties, and is useful as an electrode material for an electrochemical device such as a lithium secondary battery or an electrochemical capacitor. When the electrode material comprising this composite is used, an electrode can be produced without any binder, and the electrochemical device having good output characteristics can be constructed.