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. 30, 1999
Filed:
Dec. 19, 1997
Applicant:
Inventor:
Hideo Yasuda, Kyoto, JP;
Assignee:
Japan Storage Battery Co., Ltd., Kyoto, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
42923195 ; 429223 ; 4292313 ; 423594 ; 423599 ; 423600 ;
Abstract
A positive active material for lithium battery, includes a lithium-containing amorphous nickel oxide represented by a chemical composition formula of Li.sub.x NiO.sub.2 ; wherein x is from greater than 0.25 to 2. Preferably, x is from greater than 1 to 2. More preferably, x is from greater than 1.4 to 2. The positive active material may contains cobalt from 2 to 60 mol % {(Co/(Ni+Co)}.