Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Electro-chemical properties of $Li_{2}O=P_{2}O_{5}-V_{2}O_{5}$ Glass-ceramics for Cathode Materials

정극재료용 $Li_{2}O=P_{2}O_{5}-V_{2}O_{5}$ 계 결정화 유리의 전기화학적 특성

  • 손명모 (대구공업대학 세라믹공업과) ;
  • 이헌수 (대구공업대학 세라믹공업과) ;
  • 구할본 (전남대학교 전기공학과) ;
  • 김윤선 (전남대학교 전기공학과)
  • Published : 2000.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Vanadate glasses in the Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ system containing 10~20mo1% glass former, P$_2$O$_{5}$ were prepared by melting the batch in pt. crucible followed by quenching on the copper plate. We found that Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ g1ass-ceramics obtained from crystallization of glass showed significantly higher capacity and longer cycle life than Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ g1ass. In the present paper, we describe electro-chemical properties during crystallization process and find the best crystallization condition of Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ g1ass as cathod material. Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ glass-ceramics shows superior rechargeable capacity of 220 mAh/g in the cycling between 2.0 and 3.9V. between 2.0 and 3.9V.

Keywords