DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Lee, Jae Woo | - |
dc.contributor.advisor | 이재우 | - |
dc.contributor.author | Choi, Won Yeong | - |
dc.date.accessioned | 2022-04-15T01:54:24Z | - |
dc.date.available | 2022-04-15T01:54:24Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=956714&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/294660 | - |
dc.description.abstract | As environmental issues such as abnormal climate and sea level rise due to global warming gradually emerge, environmentally friendly energy sources that can replace the existing fossil fuels are getting a lot of attention. Among them, electrochemical energy systems are attracting attention as the most promising alternatives, and lithium-ion batteries are being commercialized in various portable electrical devices including smartphones and laptops based on their high energy density. However, in order to utilize lithium-ion batteries in the advanced electronic devices such as electric vehicles, it is necessary to develop a battery having a high energy density. This dissertation concentrated on the study of utilizing metal oxides having a high theoretical capacity as an anode materials for lithium-ion battery to replace graphite, which is currently commercialized in lithium-ion battery as an anode material. In particular, a method of forming a composite with carbon material was developed to compensate the low electrical conductivity and structural instability of metal oxides. To increase the possibility of commercialization, the synthesis process of carbon-metal oxide composite was conducted under moderate experimental conditions. As a result, a composite having a structure in which a metal oxide and a carbon material can interact efficiently with each other was successfully synthesized, and we confirmed electrochemical operation of the composite as an anode material of lithium-ion battery. Higher energy storage capacity than graphite was achieved, and the improved electrochemical performance when a composite was formed with carbon was investigated. | - |
dc.language | eng | - |
dc.title | Formation of carbon-metal oxide composites for lithium-ion battery anode materials | - |
dc.title.alternative | 리튬 이온 배터리 음극 소재로의 응용을 위한 탄소와 금속 산화물의 복합체 합성 | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.description.isOpenAccess | 학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2021.2,[v, 53 p. :] | - |
dc.publisher.country | 한국과학기술원 | - |
dc.type.journalArticle | Thesis(Ph.D) | - |
dc.contributor.alternativeauthor | 최원영 | - |
dc.subject.keywordAuthor | Metal oxide▼aCarbon material▼aCO2 conversion▼aElectrospinning▼aLithium-ion battery▼aAnode material | - |
dc.subject.keywordAuthor | 금속 산화물▼a탄소 소재▼a이산화탄소 전환▼a전기 방사▼a리튬 이온 배터리▼a음극 소재 | - |
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