DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | 육종민 | - |
dc.contributor.author | Seo, Hyeon Kook | - |
dc.contributor.author | 서현국 | - |
dc.date.accessioned | 2024-07-25T19:30:19Z | - |
dc.date.available | 2024-07-25T19:30:19Z | - |
dc.date.issued | 2018 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1044813&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/320413 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 신소재공학과, 2018.8,[xv, 151 p. :] | - |
dc.description.abstract | To develop next-generation high-capacity lithium ion batteries, it is necessary to overcome the limited capacity of conventional materials and to develop new high-capacity lithium storage materials. As alternatives, alloy-type anode materials such as silicon (Si) and tin (Sn) and sulfur (S)-based cathode materials have received a great number of interests in academic researches and industrial applications. When these are implemented, several times higher theoretical capacity can be expected than that obtained through combination of existing graphite-based anodes and lithium metal oxide cathodes. In spite of the high lithium storage capacity, however, continuous active mass loss occurs due to drastic volume and phase changes during cycling, which leads to severe capacity fading and poor cycle life. In order to overcome this, it is necessary to understand the deterioration mechanisms of the materials through real-time transmission electron microscopy, and to suggest a reasonable design strategy. In this thesis, the lithiation behaviors of Si, Sn and S nanoparticles were revealed by first introducing in situ graphene liquid cell electron microscopy into the research field of lithium ion battery materials. And based on insights obtained from these studies, new material design strategies were also proposed. By further improving, this new in situ technique is expected to contribute to unveiling the lithiation behavior of various energy storage materials which have been veiled so far. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 그래핀 액상셀▼a실시간 투과전자현미경▼a리튬이온전지▼a고용량 리튬 저장물질▼a리튬화 거동 | - |
dc.subject | Graphene liquid cell▼aIn situ transmission electron microscopy▼aLithium ion battery▼aHigh density lithium storage materials▼aLithiation mechanism | - |
dc.title | In situ graphene liquid cell electron microscopy of lithiation behaviors in high density lithium storage materials | - |
dc.title.alternative | 실재상황 그래핀 액상셀 전자현미경을 이용한 고용량 리튬 저장 물질의 리튬화 거동 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :신소재공학과, | - |
dc.contributor.alternativeauthor | Yuk, Jong Min | - |
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