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. 02, 2002
Filed:
Jul. 03, 2000
Applicant:
Inventors:
Masahiro Kasai, Mito, JP;
Toshinori Douzono, Miharumachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 1/024 ;
U.S. Cl.
CPC ...
H01M 1/024 ;
Abstract
In order to provide a high performance secondary battery, which is suitable for applying to portable apparatus or electric vehicles, a spinel type oxide Li Mn O (0<x<0.33) added with at least an element different from the composing element is used as an active material.