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. 08, 2001
Filed:
Jul. 13, 1999
Applicant:
Inventor:
James A. Wasynczuk, Bellflower, CA (US);
Assignee:
Hughes Electronics Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/64 ; H01M 4/72 ; B23P 1/300 ;
U.S. Cl.
CPC ...
H01M 4/64 ; H01M 4/72 ; B23P 1/300 ;
Abstract
A lithium-ion battery cell assembly includes a negative electrode having a negative current collector contacting a negative electrode active material. The negative current collector is prepared by providing a piece of a negative current collector metal, thereafter oxidizing the piece of the negative current collector metal, and thereafter reducing the piece of the negative current collector metal. The negative electrode is assembled with a positive electrode with an intermediate separator. An electrolyte saturates the electrodes and the separator, and provides a lithium ion path between the negative electrode and the positive electrode.