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:
Aug. 14, 2012
Filed:
Jul. 30, 2003
Positive electrode active material and non-aqueous electrolyte secondary battery containing the same
Applicants:
Tsutomu Ohzuku, Nara, JP;
Hiroshi Yoshizawa, Hirakata, JP;
Masatoshi Nagayama, Hirakata, JP;
Inventors:
Assignees:
Panasonic Corporation, Osaka, JP;
Osaka City University, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/88 (2006.01); C01G 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a non-aqueous electrolyte secondary battery comprising: a negative electrode containing, as a negative electrode active material, at least a material capable of absorbing and desorbing lithium ions or metal lithium; a positive electrode; and an electrolyte, an oxide containing nickel and manganese elements, the material comprising primary particles of the oxide having a twining portion and a superlattice arrangement of a [√{square root over ( )}3×√{square root over ( )}3] R30° when assigned as R3-m is used as a positive electrode active material.