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.

Date of Patent:
Dec. 13, 2005

Filed:

Oct. 29, 1999
Applicants:

Ho-jin Kweon, Cheonan-si, KR;

Geun-bae Kim, Cheonan-si, KR;

Dong-gon Park, Seoul, KR;

Hyung-gon Noh, Cheonan-si, KR;

Inventors:

Ho-Jin Kweon, Cheonan-si, KR;

Geun-Bae Kim, Cheonan-si, KR;

Dong-Gon Park, Seoul, KR;

Hyung-Gon Noh, Cheonan-si, KR;

Assignee:

Samsung SDI Co., Ltd., Kyungki-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M004/50 ; H01M004/52 ;
U.S. Cl.
CPC ...
Abstract

A positive active material for rechargeable lithium batteries includes an active material component processed from a manganese-based compound. The transition metal compound is selected from LiMnO, LiMnF, LiMnS, LiMnOF, LiMnOS, LiMnMO, LiMnMF, LiMnMS, LiMnMOF, LiMnMOS, LiMnO, LiMnF, LiMnOF, LiMnOS, LiMnMO, LiMnMF, LiMnMS, LiMnMOF, or LiMnMOSwhere 0<x≦1.5, 0.05≦y≦0.3, z≦1.0 and M is selected from Al, Co, Cr, Mg, Fe or La. A metallic oxide is coated on the active material component.


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