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Title:
CATHODE SLURRY FOR LITHIUM-SULFUR BATTERY, CATHODE FOR LITHIUM-SULFUR BATTERY MANUFACTURED USING SAME, AND LITHIUM-SULFUR BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/060019
Kind Code:
A1
Abstract:
The present invention relates to a cathode slurry for a lithium-sulfur battery, a cathode for a lithium-sulfur battery manufactured using same, and a lithium-sulfur battery comprising same and, more particularly, to a cathode slurry for a lithium-sulfur battery comprising a cathode active material, a conductive material, a binder, and a solvent, wherein the average particle diameter D(50) ratio of the cathode active material to the cathode slurry is 1.5 or less, and the phase angle at 1 Hz of the cathode slurry is 50° or more. The cathode slurry for a lithium-sulfur battery of the present invention exhibits excellent flowability while having a high solid content, such that a cathode for a lithium-sulfur battery having excellent electrochemical properties can be manufactured, and productivity and economy of the manufacturing process of a cathode for a lithium-sulfur battery can be enhanced.

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Inventors:
LEE MIJIN (KR)
PARK EUN KYOUNG (KR)
SHIN DONGSEOK (KR)
SOHN KWONNAM (KR)
Application Number:
PCT/KR2021/012368
Publication Date:
March 24, 2022
Filing Date:
September 10, 2021
Export Citation:
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Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/139; H01M4/02; H01M4/13; H01M4/36; H01M4/38; H01M4/62; H01M10/052
Foreign References:
KR101654042B12016-09-05
KR20190037149A2019-04-05
KR20190068066A2019-06-18
JP2017182962A2017-10-05
JP2013084525A2013-05-09
KR20200121526A2020-10-26
KR20210120228A2021-10-07
KR20190085874A2019-07-19
KR20170081840A2017-07-13
Attorney, Agent or Firm:
KIM, Sung Ho (KR)
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