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:
Jul. 04, 2000
Filed:
Mar. 25, 1998
Applicant:
Inventors:
Michel Armand, Montreal, CA;
Christophe Michot, Grenoble, FR;
Nathalie Ravet, Montreal, CA;
Martin Simoneau, Montreal, CA;
Pierre Hovington, Montreal, CA;
Assignees:
Hydro-Quebec, Montreal, CA;
Centre National de la Recherche Scientifique, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
385140 ; 385141 ; 429218 ;
Abstract
An orthosilicate whose structure is based on SiO.sub.4.sup.4 tetranions which contains at least one transition element with at least two valence states. Lithium ingresses or egresses into or from the structure in order to compensate for a change in valency of the redox couple during electrode operation and thereby maintain overall electroneutrality.