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Title:
LITHIUM MANGANESE POSITIVE ELECTRODE ACTIVE MATERIAL HAVING SPINEL STRUCTURE, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/088805
Kind Code:
A3
Abstract:
The present invention relates to a lithium manganese positive electrode active material having a spinel structure, a positive electrode and a lithium secondary battery comprising same, the lithium manganese positive electrode active material comprising: lithium manganese oxide represented by chemical formula [1] below; and a coating layer which is positioned on the surface of the lithium manganese oxide and comprises one or more coating elements selected from the group consisting of Al, Ti, W, B, F, P, Mg, Ni, Co, Fe, Cr, V, Cu, Ca, Zn, Zr, Nb, Mo, Sr, Sb, Bi, Si, and S, and thus showing excellent high-temperature storage characteristics. Chemical formula [1]: Li1+aMn2-bM1 bO4-cAc (In chemical formula [1], M1 is one or more metal elements comprising Li, A is one or more elements selected from the group consisting of F, Cl, Br, I, At and S, 0≤a≤0.2, 0

Inventors:
BAEK, So Ra (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
JUNG, Wang Mo (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
KANG, Min Suk (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
LEE, Sang Wook (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
LHO, Eun Sol (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
WANG, Wen Xiu (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2018/013403
Publication Date:
June 20, 2019
Filing Date:
November 06, 2018
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H01M4/36; H01M4/131; H01M4/505; H01M4/525; H01M4/62; H01M10/0525
Foreign References:
KR20120081808A2012-07-20
KR20150013077A2015-02-04
KR20070114411A2007-12-04
KR20140013391A2014-02-05
KR20070021040A2007-02-22
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (11th Floor, 343 Gangnam-daero,,Seocho-gu, Seoul, 06626, KR)
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