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:
Sep. 07, 2010

Filed:

Feb. 26, 2010
Applicants:

Jung-joon Park, Suwon-si, KR;

Su-ho Song, Suwon-si, KR;

Wan-seog OH, Suwon-si, KR;

Jae-chul Um, Suwon-si, KR;

Inventors:

Jung-Joon Park, Suwon-si, KR;

Su-Ho Song, Suwon-si, KR;

Wan-Seog Oh, Suwon-si, KR;

Jae-Chul Um, Suwon-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
Abstract

Disclosed in a positive active material for a lithium secondary battery including a compound represented by formula 1 and having a 10% to 70% ratio of diffracted intensity of diffraction lines in 2θ=53° (104 plane) with respect to diffracted intensity of diffraction lines in the vicinity of 2θ=22° (003 plane) in X-ray diffraction patterns using a CoKα-ray,LiCoOA  (1)wherein, x is from 0.90 to 1.04, y is from 0 to 0.5, and A is selected from the group consisting of F, S and P.


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