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Kwon, Tae-Hyuk
Energy Recognition Lab.
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dc.citation.endPage 24487 -
dc.citation.number 21 -
dc.citation.startPage 24479 -
dc.citation.volume 12 - Han, Jung-Gu - Hwang, Eunbyul - Kim, Yoseph - Park, Sewon - Kim, Koeun - Roh, Deok-Ho - Gu, Minsu - Lee, Sang-Ho - Kwon, Tae-Hyuk - Kim, Youngjo - Choi, Nam-Soon - Kim, Byeong-Su - 2023-12-21T17:38:22Z - 2023-12-21T17:38:22Z - 2020-06-01 - 2020-05 -
dc.description.abstract Long-term stability of the solid electrolyte interphase (SEI) and cathode-electrolyte interface (CEI) layers formed on anodes and cathodes is imperative to mitigate the interfacial degradation of electrodes and enhance the cycle life of lithium-ion batteries (LIBs). However, the SEI on the anode and CEI on the cathode are vulnerable to the reactive species of PF5 and HF produced by the decomposition and hydrolysis of the conventional LiPF6 electrolyte in a battery inevitably containing a trace amount of water. Here, we report a new class of cyclic carbonate-based electrolyte additives to preserve the integrity of SEI and CEI in LIBs. This new class of additives is designed and synthesized by an ecofriendly approach that involves fixing CO2 with functional epoxides bearing various reactive side chains. It was found that the cyclic carbonates of 3-(1ethoxyethoxy)-1,2-propylene carbonate and 3-trimethoxysilylpropyloxy-1,2propylene carbonate, possessing high capability for the stabilization of Lewis-acidic PF5, exhibit a capacity retention of 79.0% after 1000 cycles, which is superior to that of the pristine electrolyte of 54.7%. Moreover, TMSPC has HF-scavenging capability, which, along with PF5 stabilization, results in enhanced rate capability of commercial LiNi0.6Mn0.2Co0.2O2 (NCM622)/graphite full cells, posing a significant potential for high-energy-density LIBs with long cycle stability. -
dc.identifier.bibliographicCitation ACS APPLIED MATERIALS & INTERFACES, v.12, no.21, pp.24479 - 24487 -
dc.identifier.doi 10.1021/acsami.0c04372 -
dc.identifier.issn 1944-8244 -
dc.identifier.scopusid 2-s2.0-85085531382 -
dc.identifier.uri -
dc.identifier.url -
dc.identifier.wosid 000537731900086 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Dual-Functional Electrolyte Additives toward Long-Cycling Lithium-Ion Batteries : Ecofriendly Designed Carbonate Derivatives -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Nanoscience & Nanotechnology; Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Science & Technology - Other Topics; Materials Science -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor lithium-ion batteries -
dc.subject.keywordAuthor electrolyte additives -
dc.subject.keywordAuthor PF5 stabilization -
dc.subject.keywordAuthor HF scavenging -
dc.subject.keywordAuthor LiPF6-based electrolytes -
dc.subject.keywordPlus ENERGY-STORAGE -
dc.subject.keywordPlus THERMAL-REACTIONS -
dc.subject.keywordPlus CATHODES -
dc.subject.keywordPlus HEPTAMETHYLDISILAZANE -
dc.subject.keywordPlus DEGRADATION -
dc.subject.keywordPlus DISSOLUTION -
dc.subject.keywordPlus MIGRATION -
dc.subject.keywordPlus MONOMER -
dc.subject.keywordPlus SYSTEM -


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