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:
Oct. 02, 1990
Filed:
Feb. 21, 1989
Applicant:
Inventors:
Yoshitomo Masuda, Tachikawa, JP;
Masao Ogawa, Kawagoe, JP;
Katsuhiko Arai, Iruma, JP;
Kinya Suzuki, Kodaira, JP;
Tadashi Fuse, Kodaira, JP;
Tetsuro Amano, Tokyo, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429194 ; 429213 ; 429218 ;
Abstract
A lithium cell comprising a negative electrode containing lithium, a positive electrode, and an electrolyte disposed between the positive and negative electrodes is improved in internal resistance and shelf life when the negative electrode is surface treated with water, lithium hydroxide, a PF.sub.6 ion-containing compound, or an AsF.sub.6 ion-containing compound.