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. 03, 2000
Filed:
Apr. 23, 1998
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
4292181 ; 4292311 ; 4292313 ; 42923195 ; 423594 ;
Abstract
A method of manufacturing a cathode active material and a nonaqueous electrolyte secondary battery including the cathode active material and having a large capacity, an excellent cycle characteristic at high environmental temperatures and satisfactory discharging characteristic under a large load are provided. Cobalt salts, lithium salts and aluminum hydroxide salts are mixed with one another and a prepared mixture is baked so that a cathode active material is obtained which is expressed by Li.sub.x Co.sub.(1-y) Al.sub.y O.sub.2 (where 0.05.ltoreq.x.ltoreq.1.10 and 0.01.ltoreq.y<0.10) is obtained.