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. 04, 1998
Filed:
Feb. 07, 1996
Applicant:
Inventors:
Yoshiyuki Ozaki, Neyagawa, JP;
Hizuru Koshina, Neyagawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429218 ; 429194 ; 423448 ; 423460 ; 252502 ; 252510 ; 264105 ;
Abstract
A non-aqueous electrolyte secondary cell having high charging efficiency over a wide temperature range, including low temperature, high energy density and superior charge and discharge cycle life, provided with a negative electrode manufactured with mesophase graphite particles obtained by a process to carbonize and then fully graphitize with a pulverizing process added before or after the carbonization.