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:
Aug. 05, 1997
Filed:
Mar. 23, 1995
Applicant:
Inventors:
Tadahiko Kubota, Minami-ashigara, JP;
Mitsutoshi Tanaka, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429218 ; 429 94 ;
Abstract
There is disclosed a nonaqueous secondary battery comprising, as a negative-electrode-active material, an oxide mainly comprising at least one of semimetals of the group IVB or VB of the periodic table, which is capable of intercalating and deintercalating lithium, in which (1) a positive-electrode-active material is a cobalt oxide, having an average grain size (D) represented by the formula: