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. 12, 1998
Filed:
Jan. 03, 1997
Applicant:
Inventors:
Ignacio Chi, Dracut, MA (US);
Karthik Ramaswami, Framingham, MA (US);
Han C Kuo, Burlington, MA (US);
Christa Todino, Woburn, MA (US);
Assignee:
Duracell inc., Bethel, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429 49 ; 429194 ; 429218 ; 296235 ;
Abstract
The efficacy of a passivating layer in a rechargeable lithium ion cell is increased by heating the charged cell and storing the charged cell for a pre-determined period of time.