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- W2076027635 abstract "본 연구에서는 낮은 사이클 안정성을 갖는 MCMB의 단점을 향상시키기 위하여 높은 사이클 안정성과 부피팽창이 없는 장점을 갖는 물질인 <TEX>$Li_4Ti_5O_{12}$</TEX>를 코팅하여 core-shell 구조의 <TEX>$MCMB/Li_4Ti_5O_{12}$</TEX>를 합성하고 <TEX>$MCMB/Li_4Ti_5O_{12}$</TEX>를 음극으로, <TEX>$LiMn_2O_4$</TEX>, Active carbon fiber를 양극으로 사용하여 단위 셀을 제조하였다. <TEX>$LiPF_6$</TEX> 염과 EC/DMC/EMC 용매를 전해질로 사용하여 제조한 하이브리드 커패시터 단위 셀로 충방전, 사이클, 순환전압전류, 임피던스 테스트를 진행하여 전기화학적 특성을 평가한 결과, MCMB-<TEX>$Li_4Ti_5O_{12}/LiMn_2O_4$</TEX> 전극을 사용한 하이브리드 커패시터가 MCMB 전극의 하이브리드 커패시터 보다 좋은 충/방전 성능을 보였고, 67 Wh/kg, 781 W/kg의 에너지밀도와 출력밀도를 나타내었다. The MCMB-<TEX>$Li_4Ti_5O_{12}$</TEX> with core-shell structure was prepared by sol-gel process to improve low cycle capability of MCMB in this study. The electrochemical characteristics were investigated for hybrid capacitor using MCMB-<TEX>$Li_4Ti_5O_{12}$</TEX> as the negative electrode and <TEX>$LiMn_2O_4$</TEX>, Active carbon fiber as the positive electrode. The electrochemical behaviors of hybrid capacitor using organic electrolytes (<TEX>$LiPF_6$</TEX>, EC/DMC/EMC) were characterized by charge/discharge, cyclic voltammetry, cycle and impedance tests. The hybrid capacitor using MCMB-<TEX>$Li_4Ti_5O_{12}/LiMn_2O_4$</TEX> electrodes had better capacitance than MCMB hybrid systems and was able to deliver a specific energy with 67 Wh/kg at a specific power of 781 W/kg." @default.
- W2076027635 created "2016-06-24" @default.
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- W2076027635 date "2014-02-01" @default.
- W2076027635 modified "2023-10-05" @default.
- W2076027635 title "Electrochemical Characteristics of Hybrid Capacitor using Core-shell Structure of MCMB/Li4Ti5O12Composite" @default.
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- W2076027635 doi "https://doi.org/10.9713/kcer.2014.52.1.52" @default.
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