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:
Oct. 14, 2003
Filed:
Feb. 14, 2001
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 ; H01M 4/88 ;
U.S. Cl.
CPC ...
H01M 4/58 ; H01M 4/88 ;
Abstract
A non-aqueous electrolyte secondary battery employing a positive electrode active material containing a compound represented by the general formula Li M PO , where 0<x≦2 and 0.8≦y≦1.2, with M containing a 3d transition metal, where Li M PO encompasses that with the grain size not larger than 10 &mgr;m. The non-aqueous electrolyte secondary battery has superior cyclic characteristics and a high capacity.