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:
Jun. 09, 1998
Filed:
Jun. 25, 1996
Applicant:
Inventors:
M Yazid Saidi, Henderson, NV (US);
Rene Koksbang, Odense, DK;
Assignee:
Valence Technology, Inc., Henderson, NV (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429224 ; 429217 ;
Abstract
A method for reducing capacity fading of an LiMn.sub.2 O.sub.4 spinel electrode active material comprising substituting a minor amount of Z for Mn in the LiMn.sub.2 O.sub.4 active material, where Z is a metal element having a +4 (IV) valence state and is characterized by an ability to form tetravalent chlorides. The Z substituted LiMn.sub.2 O.sub.4 active material is further characterized by a lesser rate of capacity loss with cycling as compared to LiMn.sub.2 O.sub.4 active material.