Title:
BINDER FOR AQUEOUS SILICON ANODE CONTAINING LAMBDA CARRAGEENAN-BASED POLYMER, SILICON ANODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/243955
Kind Code:
A1
Abstract:
The present invention relates to a binder for an aqueous silicon anode containing a lambda carrageenan-based polymer, to a silicon anode comprising same, and to a lithium secondary battery comprising same. According to one embodiment of the present invention, lambda carrageenan contains multiple hydroxyl (-OH) groups and sulfonyl (-SO3 -) functional groups and can form strong hydrogen bonds with silicon. In addition, since sulfonyl (-SO3 -) functional groups are present in lambda carrageenan, lithium ion conductivity can be further improved.
Inventors:
KIM TAE HYUN (KR)
JANG WON SEOK (KR)
MADHAV THORAT GAURAV (IN)
KIM SANG WOOK (KR)
KANG YU MI (KR)
K K RAJEEV (IN)
JANG WON SEOK (KR)
MADHAV THORAT GAURAV (IN)
KIM SANG WOOK (KR)
KANG YU MI (KR)
K K RAJEEV (IN)
Application Number:
PCT/KR2023/008010
Publication Date:
December 21, 2023
Filing Date:
June 12, 2023
Export Citation:
Assignee:
INU RES & BUSINESS FOUNDATION (KR)
International Classes:
H01M4/62; C08B37/00; C08L5/00; H01M4/02; H01M4/134; H01M4/1395
Foreign References:
| KR20160034082A | 2016-03-29 | |||
| KR20190129767A | 2019-11-20 | |||
| KR20190068371A | 2019-06-18 | |||
| JP2009170287A | 2009-07-30 |
Other References:
KAZDA TOMÁŠ, CAPKOVÁ DOMINIKA, JAŠŠO KAMIL, FEDORKOVÁ STRAKOVÁ ANDREA, SHEMBEL ELENA, MARKEVICH ALEX, SEDLAŘÍKOVÁ MARIE: "Carrageenan as an Ecological Alternative of Polyvinylidene Difluoride Binder for Li-S Batteries", MATERIALS, M D P I AG, CH, vol. 14, no. 19, 26 September 2021 (2021-09-26), CH , pages 5578, XP093117517, ISSN: 1996-1944, DOI: 10.3390/ma14195578
JANG WONSEOK, K. K. RAJEEV, THORAT GAURAV M., KIM SANGWOOK, KANG YUMI, KIM TAE-HYUN: "Lambda Carrageenan as a Water-Soluble Binder for Silicon Anodes in Lithium-Ion Batteries", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMERICAN CHEMICAL SOCIETY, US, vol. 10, no. 38, 26 September 2022 (2022-09-26), US , pages 12620 - 12629, XP093117521, ISSN: 2168-0485, DOI: 10.1021/acssuschemeng.2c03313
JANG, W. ET AL.: "ELEC.P-490 Carrageenan-based Polymer Binder for Si anode in Lithium Ion Battery", 128TH GENERAL MEETING OF THE KOREAN CHEMICAL SOCIETY; 13-15 OCTOBER 2021, KOREAN CHEMICAL SOCIETY, KOREA, 1 January 2021 (2021-01-01) - 15 October 2021 (2021-10-15), Korea, XP009551558
JANG, W. et al. Polysaccharide Binder based on Lambda Carrageenan for Si anode in Lithium Ion Battery. 2022년도 한국전기화학회 춘계총회 및 학술발표회 (2022 Spring Meeting of the Korean Electrochemical Society). 07-09 April 2022. ICC Jeju. poster presentation: PS1-1-105.
JANG WONSEOK, K. K. RAJEEV, THORAT GAURAV M., KIM SANGWOOK, KANG YUMI, KIM TAE-HYUN: "Lambda Carrageenan as a Water-Soluble Binder for Silicon Anodes in Lithium-Ion Batteries", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMERICAN CHEMICAL SOCIETY, US, vol. 10, no. 38, 26 September 2022 (2022-09-26), US , pages 12620 - 12629, XP093117521, ISSN: 2168-0485, DOI: 10.1021/acssuschemeng.2c03313
JANG, W. ET AL.: "ELEC.P-490 Carrageenan-based Polymer Binder for Si anode in Lithium Ion Battery", 128TH GENERAL MEETING OF THE KOREAN CHEMICAL SOCIETY; 13-15 OCTOBER 2021, KOREAN CHEMICAL SOCIETY, KOREA, 1 January 2021 (2021-01-01) - 15 October 2021 (2021-10-15), Korea, XP009551558
JANG, W. et al. Polysaccharide Binder based on Lambda Carrageenan for Si anode in Lithium Ion Battery. 2022년도 한국전기화학회 춘계총회 및 학술발표회 (2022 Spring Meeting of the Korean Electrochemical Society). 07-09 April 2022. ICC Jeju. poster presentation: PS1-1-105.
Attorney, Agent or Firm:
CHA, Joon Yong (KR)
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