Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Charge/discharge Properties of Flyash as a Anode for Lithium Polymer Battery

리튬 폴리머 전지용 Flyash 부극의 충방전 특성

  • Song, Hee-Woong (Dept. of Electrical Engineering, Chonnam National University) ;
  • Kim, Jong-Uk (Dept. of Electrical Engineering, Chonnam National University) ;
  • Park, Gye-Choon (School of Electrical & Control Instrumentation Engineering, Mokpo National University) ;
  • Gu, Hal-Bon (Dept. of Electrical Engineering, Chonnam National University)
  • 송희웅 (전남대학교 전기공학과) ;
  • 김종욱 (전남대학교 전기공학과) ;
  • 박계춘 (목포대학교 전기제어공학부) ;
  • 구할본 (전남대학교 전기공학과)
  • Published : 1999.11.20
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Abstract

The trend of increasing of portable electric devices and demand for global environmental conservation have demands the development of high energy density rechargeable batteries. Lithium polymer battery has excellent theoretical energy density and energy conversion efficiency. Lithium polymer battery, included solid polymer electrolyte(SPE), can be viewed as a system suitable for wide applications from thin film batteries for microelectronics to electric vehicle batteries. The purpose of this paper is to research and development of flyash anode for lithium polymer battery. We investigated AC impedance response and charge/discharge characteristics of flyash/SPE/Li cells. The radius of semicircle associated with the interfacial resistance of flyash/SPE/Li cell increased very slowly during discharge process from 3.11V to 0.478V. And then the cell resistance was decreased at discharge process from 10% SOC to 0% SOC. Also, The radius of semicircle associated with the interfacial resistance of flyash/SPE/Li cell decreasing very slowly during charge process. And then the cell resistance was increased after 20th discharge precess. The discharge capacity based on flyash of 1st and 20th cycles was 276mAh/g and 143mAh/g.

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