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. 14, 1997
Filed:
Dec. 19, 1996
Applicant:
Inventor:
Hideki Tomiyama, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429194 ; 429218 ;
Abstract
In a non-aqueous lithium ion secondary battery comprising a positive electrode sheet which comprises a lithium-containing transition metal oxide film, a negative electrode sheet which has a film of material capable of receiving and releasing a lithium ion, a non-aqueous electrolyte which contains a lithium salt, and a container which seals the electrodes and electrolyte therein, the lithium-containing transition metal oxide film comprises at least two layers, one of which expands during discharging while shrinks during charging, and another of which shrinks during discharging while expands during charging.