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:
Feb. 05, 2013
Filed:
May. 26, 2010
Applicants:
Hisashi Suzuki, Tokyo, JP;
Masayoshi Hirano, Tokyo, JP;
Inventors:
Hisashi Suzuki, Tokyo, JP;
Masayoshi Hirano, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An active material, an electrode, and a battery which exhibit high safety in overcharging tests, and methods of manufacturing them are provided. The active material comprises a first metal oxide particleand a second metal oxide particle groupattached to a surface of the first metal oxide particle. The second metal oxide is at least one selected from the group consisting of zirconia, silica, and tin oxide. The first metal oxide particlecontains fluorine atoms from its surface to deepest part.