DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 조은애 | - |
dc.contributor.advisor | Cho, EunAe | - |
dc.contributor.author | Shin, Geunhyeong | - |
dc.date.accessioned | 2023-06-22T19:32:05Z | - |
dc.date.available | 2023-06-22T19:32:05Z | - |
dc.date.issued | 2023 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1032369&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/308343 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 미래자동차학제전공, 2023.2,[vi, 53 p. :] | - |
dc.description.abstract | Currently, batteries used in electric vehicles are led by Li-ion batteries, but the energy density of Li-ion batteries is reaching a limit in terms of the demand of mileage, which is a priority for consumers. In this regard, a Li metal battery is attracting attention as a next-generation battery by using Li metal as the anode material for higher energy density. Unlike the conventional anode material, the Li metal anode is operated in a way of electrodeposition/dissolution on the surface, and thus shows characteristic dendritic growth of Li. Since dendritic growth arouses various problems to electrochemical performances, research is required to solve the dendritic growth problem to increase stability. In this study, an porous polymeric nanofiber interlayer was developed with including CsNO3 additive which have extremely low solubility in carbonate electrolyte through electrospinning method. In fact, significant improvement in stability of the Li metal anode was confirmed by electrochemical analysis. It was also verified that this improvement came from the synergistic effect of Cs$^+$ cations and NO$_3$$^-$ anions through deposition morphology and SEI components. Finally, the possibility of a high-energy-density Li metal battery based on a carbonate electrolyte was presented via electrospun CsNO$_3$ embedded PAN interlayer which can supply CsNO$_3$ continuously for prolonged cycle. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Li metal anode▼aDendritic growth▼aSolid electrolyte interphase layer▼aCarbonate electrolyte▼aCesium nitrate▼aElectrospinning▼aInterlayer | - |
dc.subject | 리튬 금속 음극▼a수지상 성장▼a고체 전해질 계면 층▼a카보네이트 전해액▼a질산 세슘▼a전기 방사▼a중간층 | - |
dc.title | Improving cycling stability of Li metal anode in carbonate electrolyte system by CsNO3 embedded polymeric interlayer | - |
dc.title.alternative | 세슘 질산염이 함유된 고분자 중간층을 통한 카보네이트 전해액 시스템에서 리튬 금속 음극의 안정성 향상 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :미래자동차학제전공, | - |
dc.contributor.alternativeauthor | 신근형 | - |
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