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:
Jan. 21, 1997
Filed:
Apr. 16, 1996
Applicant:
Inventor:
Ryuta Suzuki, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429217 ; 429194 ;
Abstract
A nonaqueous secondary battery excellent in charge and discharge cycle characteristics and having a high capacity and improved first cycle efficiency and production fitness is disclosed, which comprises a battery case enclosing therein a positive electrode and a negative electrode capable of intercalating and deintercalating lithium and a nonaqueous electrolytic solution containing a lithium salt, wherein one or both of the positive electrode and the negative electrode contains a copolymer comprising an acrylic or methacrylic ester, acrylonitrile and a vinyl monomer having an acid moiety.