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:
Jul. 13, 1999
Filed:
Jun. 06, 1996
Applicant:
Inventors:
Kyoko Ikawa, Hitachi, JP;
Yasushi Muranaka, Hitachinaka, JP;
Tatsuo Horiba, Hitachi, JP;
Yosimi Komatu, Hitachi, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429218 ; 4292311 ; 4292318 ;
Abstract
A secondary battery having a large capacity, and a preferable characteristics in both rapid charging and rapid discharging comprises a positive electrode a negative electrode, and an electrolyte which separates said electrodes, in which any one of the positive electrode or negative electrode contains particles composed of a material contributing to a charge-discharge reaction, and the particles comprise at least two phases and fine pores which are formed by dissolving at least one of the phases.