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Title:
POSITIVE ELECTRODE FOR LITHIUM-SULFUR BATTERY AND LITHIUM-SULFUR BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/050769
Kind Code:
A1
Abstract:
The present invention relates to a positive electrode for a lithium-sulfur battery and a lithium-sulfur battery comprising same and, more specifically, to a positive electrode, for a lithium-sulfur battery, comprising: a current collector; and a positive electrode active material layer disposed on at least one surface of the current collector, wherein the positive electrode active material layer comprises a positive electrode active material and an additive, and the additive comprises a transition metal-ferrocyanide compound. The positive electrode for a lithium-sulfur battery of the present invention exhibits excellent lithium polysulfide elution inhibitory effect and electrochemical reactivity and thus enhances the capacity and life characteristics of a lithium-sulfur secondary battery.

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Inventors:
LEE DONGWOOK (KR)
KIM TAEK GYOUNG (KR)
Application Number:
PCT/KR2021/011951
Publication Date:
March 10, 2022
Filing Date:
September 03, 2021
Export Citation:
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Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/13; H01M4/02; H01M4/36; H01M4/38; H01M4/62; H01M10/052
Foreign References:
KR20200008494A2020-01-28
KR20200008437A2020-01-28
KR20130121515A2013-11-06
KR20200113260A2020-10-06
KR20170139761A2017-12-20
KR20160046775A2016-04-29
KR20160037084A2016-04-05
Other References:
PENG YUEYING, LI BING, WANG YUNHUI, HE XINYI, HUANG JIANXING, ZHAO JINBAO: "Prussian Blue: A Potential Material to Improve the Electrochemical Performance of Lithium–Sulfur Batteries", APPLIED MATERIALS & INTERFACES, AMERICAN CHEMICAL SOCIETY, US, vol. 9, no. 5, 8 February 2017 (2017-02-08), US , pages 4397 - 4403, XP055906146, ISSN: 1944-8244, DOI: 10.1021/acsami.6b06890
WANG BAOQI, YU HAN, XIAO WANG, NAOUFAL BAHLAWANE, HONGGE PAN, MI YAN, YINZHU JIANG: "Prussian Blue Analogs for Rechargeable Batteries", ISCIENCE, vol. 3, 25 May 2018 (2018-05-25), pages 110 - 133, XP055906152, DOI: 10.1016/j.isci.2018.04.008
Attorney, Agent or Firm:
KIM, Sung Ho (KR)
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