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:
Apr. 02, 2002
Filed:
Dec. 24, 1997
Applicant:
Inventors:
Yukio Miyaki, Kanagawa, JP;
Masuo Kabutomori, Kanagawa, JP;
Noriyuki Inoue, Kanagawa, JP;
Hiroshi Ishizuka, Kanagawa, JP;
Toshiaki Aono, Kanagawa, JP;
Mikihiko Kato, Kanagawa, JP;
Hideki Tomiyama, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/48 ; H01M 2/16 ; H01M 1/040 ;
U.S. Cl.
CPC ...
H01M 4/48 ; H01M 2/16 ; H01M 1/040 ;
Abstract
A nonaqueous secondary battery comprising a positive electrode and a negative electrode both containing a material capable of reversibly intercalating and deintercalating lithium, a nonaqueous electrolyte containing a lithium salt, and a separator, which has at least one protective layer on the negative electrode and/or the positive electrode. The battery has a high discharge potential, satisfactory charge and discharge cycle characteristics, and high safety.