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:
Nov. 04, 1997
Filed:
Oct. 01, 1996
Applicant:
Inventor:
Koji Sekai, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ;
U.S. Cl.
CPC ...
423593 ; 423594 ; 423641 ; 429191 ; 429193 ; 429194 ; 429218 ;
Abstract
A non-aqueous liquid electrolyte secondary cell employs a vanadium-containing lithium cobalt composite oxide Li.sub.x V.sub.y Co.sub.1-y O.sub.2, where 1.00.ltoreq.x.ltoreq.1.10 and 0.01.ltoreq.y.ltoreq.0.04, is employed as an active material for the positive electrode. Since the vanadium-containing lithium cobalt composite oxide is highly developed in its laminar crystal structure and has a larger grain size, the non-aqueous liquid crystal secondary cell is produced which is high in electrode bulk density and superior in storage characteristics by employing the vanadium-containing lithium cobalt composite oxide as the active material for the positive electrode.