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이차전지 음극용 화학적 활성화법으로 제조된 활성탄의 전기화학적 특성 KCI 등재

Electrochemical characteristics of active carbon prepared by chemical activation for anode of lithium ion battery

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  • URLhttps://db.koreascholar.com/Article/Detail/309954
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한국응용과학기술학회지 (The Korean Society of Applied Science and Technology)
한국응용과학기술학회(구 한국유화학회) (The Korean Society of Applied Science and Technology (KSAST))
초록

In this study, several kinds of active carbons with high specific surface area and micro pore structure were prepared from the coconut shell charcoal using chemical activation method. The physical property of prepared active carbon was investigated by experimental variables such as activating chemical agents to char coal ratio, flow rate of inert gas and temperature. It was shown that chemical activation with KOH and NaOH was successfully able to make active carbons with high surface area of 1900~2500 m2/g and mean pore size of 1.85~2.32 nm. The coin cell using water-based binder in the electrolyte of LiPF6 dissolved in mixed organic solvents (EC:DMC:EMC=1:1:1 vol%) showed better capacity than that of oil-based binder. Also, it was found that the coin cell of water-based binder shows an improved cycling performance and coulombic efficiency.

저자
  • 이호용(Department of Chemical Engineering, Chungbuk National University) | Ho-Yong Lee
  • 김태영(Department of Environmental Engineering, Chungbuk Provincial College) | Tae-Yeong Kim
  • 이종대(Department of Chemical Engineering, Chungbuk National University) | Jong-Dae Lee Corresponding author