Electrochemical Properties of $Li_{2}O-P_{2}O_{5}-V_{2}O_{5}$ Glass-ceramics for cathode Material

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

  • 손명모 (대구공업대학 세라믹신소재과) ;
  • 이헌수 (대구공업대학 세라믹신소재과) ;
  • 김종욱 (전북대학교 전자정보사업단) ;
  • 김윤선 (전남대학교 전기공학과) ;
  • 구할본 (전남대학교 전기공학과)
  • Published : 2001.08.01

Abstract

Vanadate glasses containing 10~20mol% glass former, P$_2$O$_{5}$ were prepared by melting the batch in platinum crucible and quenching on the copper plate. Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ glass-ceramics having LiV$_3$O$_{8}$ were obtained by heat-treatment of this glass in crystallization temperature. The glass-ceramics showed singnificantly good capacity and long cycles life according to heating condition. In this paper, we described electrochemical properties during crystallization process and found the best crystallizaton condition of Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ glass as cathode material. Li$_2$O-P$_2$O$_{5}$-V$_2$O$_{5}$ glass-ceramics heat-treated at 233$^{\circ}C$ for 3 hors showed good rechargeable capacity of 220mAh/g in the cycling range between 2.0 and 3.9V.en 2.0 and 3.9V.

Keywords

References

  1. J. Electrochem. Soc. v.132 no.2 $V_2O_5-P_2O_5$ Glasses as Cathode for Lithium Secondary Battery Y. Sakurai;J. Yamaki
  2. 전기전자재로학회지 v.10 no.2 고효율 고체산화물 연로전지 개발을 위한 자빌 착화 연소 합성법과 고상 반응법에 의한 $La_{0.7}Sr_{0.3}MnO_3$ 양극 재료 제조 및 물성에 관한 연구 신웅선;박인식;김선재;박성
  3. 전기전자재료학회지 v.12 no.3 용매로써 물을 사용한 Sol-Gel법에 의해 제조된 LiMn₂O₄ 정극활물질의 전기화학적 특성 정인성;구할본
  4. J. Mater. Chem. v.7 no.9 Novel low-temperature synthesis and characterization of LiNiVO₄ for high-voltage Li ion batteries S. R. S. Prabaharan;M. S. Michael;S. Radhakrishna;C. Julien
  5. U.S. pat. Method of Making Lithium Battery Electrode Compositions R. Koksbang
  6. Solid State Ionics v.78 Temperature dependency of the discharge and charge characteristics of electrochemical lithium insertion in $V_6O_{13}$ J. Barker;R. Koksbang
  7. J. Electrochem. Soc. v.132 no.2 $Li/Li_{1+x}V_3O_8$ secondary Batteries:Ⅲ. Further Characterization of the Mechanism of Li/sup +/ Insertion and of the Cycling Behavior G. Pistoia;M. Pasquali;M. Tocci;R. V. Moshtev;V. Maner
  8. J. Electrochem. Soc. v.143 no.3 Comparison of $LiV_3O_8$ Cathode Materials Prepared by Different Methods K. West;B. Zachau-Christiansen(et al)
  9. 住友化學 v.1 Development of Cathode material for Lithium secondary batteries and high performance Li secondary batteries K. Nakane;Y. Nishida;G. Nishikata(et al)
  10. 日本金屬學會會報 v.36 no.1 次世代 Li二次電池における材料とその課題 內田 降
  11. J. Electrochem. Soc. v.137 no.8 $Li/Li_{1+x}V_3O_8$ Secondary Batteries G. Pistoia;M. Pasquali;G. Wang;L. Li
  12. 전기전자재료학회지 v.11 no.9 고체전지용 $Li_xV_3O_8$ composite 정극의 전기화학적 특성 김종욱;성창호;구할본;박복기
  13. U.S. Pat. Method of preparing Lithium battery electrode compositions R. Koksbang
  14. J. Power Sources v.27 Small Particle-size Lithium-Vanadium Oxide G. Pistoia;M. Pasquali;Y. Geronov
  15. Electro-ceramics v.26 no.129 Solid State Rechargeable Li Batterir with Li ion Conductive Glass K. Takada;S. Kondo