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. 06, 2000
Filed:
Oct. 17, 1997
Applicant:
Inventors:
Nadine Treuil, Bordeaux, FR;
Josik Portier, Dradignan, FR;
Guy Campet, Canejan, FR;
Josette Ledran, Longjumeau, FR;
Jean-Claude Frison, Lannion, FR;
Assignee:
France Telecom, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; C01G / ;
U.S. Cl.
CPC ...
429224 ; 429224 ; 42923195 ; 423599 ; 423593 ;
Abstract
The invention relates to a method of preparing an oxide of formula Li.sub.x Mn.sub.y O.sub.z, in which x lies in the range 0 to 2, y lies in the range 1 to 3, and z lies in the range 3 to 4.5, x, y, and z being such that the oxide has a composition close to LiMn.sub.2 O.sub.4. According to the invention, the method comprises the following steps: