abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 05일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and characterization of Li3V2(BO3)3 cathode material prepared by a citric acid based sol-gel route

등록일
2017년 8월 18일 14시 41분 41초
접수번호
3012
발표코드
ANAL1.O-14 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 09시 : 42분
발표형식
구두발표
발표분야
Analytical Chemistry - Oral Presentation of Young Analytical Chemists I
저자 및
공동저자
Minsoo Ji, YOUNGIL LEE*
Department of Chemistry, University of Ulsan, Korea

A new cathode material, Li3V2(BO3)3, has been calcined by citric acid based sol-gel route at various temperatures ranging from 400℃ to 600℃ and characterized for optimization of calcination temperature. The Li3V2(BO3)3 as cathode material for LIBs was investigated on electrochemical performances. Citric acid acts not only as a chelating agent but also as a carbon source, which enhance the conductivity of the composite material and hinder the growth of Li3V2(BO3)3 particles during preparation. The structure and morphology of Li3V2(BO3)3 were characterized by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). Galvano-static charge/discharge and cyclic voltammetry (CV) measurements were used to study its electrochemical behaviors which indicate the reversibility of the lithium extraction/insertion processes. The sample synthesized at 450℃ exhibits the highest capacity of 198 mAh g-1 at 0.05C and excellent cycle ability.


상단으로