Title:
POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY, METHOD FOR PRODUCING SAME, AND LITHIUM-SULFUR BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2020/235908
Kind Code:
A1
Abstract:
The present invention relates to a lithium-sulfur battery, and more specifically, to a positive electrode for a lithium-sulfur battery. A lithium-sulfur battery according to the present invention has a zirconia (ZrO2)-containing acid catalyst, for example, a WO3/ZrO2 acid catalyst, included in a positive electrode, wherein the acid catalyst performs a catalytic role in the formation of lithium polysulfide due to the activation of a sulfur-containing material, and also has an excellent ability to adsorb lithium polysulfide generated during the operation of the battery, and thus suppresses the elution of lithium polysulfide into an electrolyte. Therefore, the lithium-sulfur battery can exhibit excellent electrochemical properties such as lifespan characteristics.
Inventors:
SUN YANG KOOK (KR)
KIM HEE MIN (KR)
LEE SEON HWA (KR)
KIM HEE MIN (KR)
LEE SEON HWA (KR)
Application Number:
PCT/KR2020/006509
Publication Date:
November 26, 2020
Filing Date:
May 18, 2020
Export Citation:
Assignee:
UNIV HANYANG IND UNIV COOP FOUND (KR)
International Classes:
H01M4/13; H01M4/139; H01M4/38; H01M4/58; H01M4/62; H01M10/052; H01M10/42
Foreign References:
| US20120207994A1 | 2012-08-16 | |||
| KR101892453B1 | 2018-08-31 | |||
| US20150056387A1 | 2015-02-26 | |||
| US20150056507A1 | 2015-02-26 | |||
| KR101615017B1 | 2016-04-22 | |||
| KR20160143577A | 2016-12-14 |
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (KR)
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