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Patent Searching and Data


Title:
SULFUR-CARBON COMPOSITE, METHOD FOR MANUFACTURING SAME AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2019/107752
Kind Code:
A1
Abstract:
The present invention relates to a positive electrode active material for a lithium secondary battery, the positive electrode active material comprising: a sulfur-carbon composite; and a coating layer comprising iron hydroxide (FeOOH) and positioned on the surface of the sulfur-carbon composite. In addition, the present invention relates to a method for manufacturing a positive electrode active material for a lithium secondary battery, the method comprising a step for forming a coating layer comprising iron hydroxide on the surface of a sulfur-carbon composite by dry-mixing the sulfur-carbon composite with iron hydroxide, wherein the dry-mixing is ball mill-mixing or blade-mixing.

Inventors:
HAN, Suenghoon (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
SOHN, Kwonnam (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
KIM, Eui Tae (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
YANG, Doo Kyung (LG Chem Research Park, 188 Munji-ro,,Yuseong-gu, Daejeon, 34122, KR)
Application Number:
KR2018/012795
Publication Date:
June 06, 2019
Filing Date:
October 26, 2018
Export Citation:
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Assignee:
LG CHEM, LTD. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H01M4/36; H01M4/38; H01M4/62; H01M10/052
Attorney, Agent or Firm:
KIM, Sung Ho et al. (5F, 8 Teheran-ro 8-gil,,Gangnam-gu, Seoul, 06233, KR)
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