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  • 02월 22일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Surface Layer Formation on Thin Film Electrodes of Sn during Initial Cycling in Lithium Cells

등록일
2008년 2월 12일 17시 02분 36초
접수번호
1030
발표코드
34P197포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
신우철, 송승완
충남대학교 정밀응용화학과,
Sn-based intermetallics and carbon composites have been suggested as alternative anode materials to graphite in lithium batteries, because of a large theoretical specific capacity (997mAh/g) of Sn. Long term cyclability and rate capability of lithium cells with Sn-based materials were suggested to be mainly limited by large structural volume change followed by particle pulverization and the loss of particles contact. Considering that lithium ion transport should begin to occur at the electrode-electrolyte interface, structural volume change and particle pulverization might influence on the interfacial reaction of Sn electrode. Consensus regarding the interfacial reaction of Sn has not been reached yet. Studies of carbon- and binder-free thin film electrode can give a clearer insight into the electrode-electrolyte interfacial reaction. Here we report ex-situ FT-IR spectroscopic and microscopic characterization of the surface layer formed on Sn thin film, with particular interests in the formation during initial cycling.

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