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:
May. 10, 1994
Filed:
May. 28, 1992
Applicant:
Inventors:
Bernard Simon, Paris, FR;
Jean-Pierre Boeuve, Marcoussis, FR;
Assignee:
Alcatel Alsthom Compagnie Generale D'Electricite, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429212 ; 429194 ; 429197 ; 429218 ;
Abstract
A rechargeable electrochemical cell comprising a cathode, a liquid electrolyte with a solute and at least one solvent, an anode containing a highly crystallized carbon-containing material capable of intercalating lithium ions, said electrochemical cell being characterized by the fact that the surface of said carbon-containing material is provided with a thin layer which is impermeable to said electrolyte solvent, but which allows lithium to be diffused.