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:
Dec. 12, 2000
Filed:
Feb. 12, 1999
Applicant:
Inventors:
Kenji Shizuka, Yokohama, JP;
Kenji Okahara, Yokohama, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
429224 ; 429223 ; 429218 ; 42923195 ;
Abstract
A positive electrode material for a lithium secondary cell, which contains a spinel-type lithium manganese oxide having a crystal structure belonging to Fd3m (No. 227), wherein the lithium manganese oxide satisfies the following formula: