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:
Sep. 07, 1999
Filed:
Jul. 21, 1997
Applicant:
Inventors:
Peter R Moses, Windham, NH (US);
Shuming Zeng, Norwood, MA (US);
Enoch Wang, Mansfield, MA (US);
Guang Wei, Southborough, MA (US);
Assignee:
Duracell Inc., Bethel, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429246 ; 429129 ; 429248 ; 429 94 ; 42923195 ; 296231 ; 296235 ;
Abstract
A lithium ion cell having an amount of a Group 1 element between the positive electrode and the negative electrode is described. The Group 1 element can be on an surface of an electrode separator as a deposit. The Group 1 element can increase the charging capacity of the cell, eliminate the irreversible capacity of the cell, improve the rechargeable cell cyclability, or increase the charging reversibility of the cell.