Effects of binary conductive additives on electrochemical performance of a sheet-type composite cathode with different weight ratios of LiNi0.6Co0.2Mn0.2O2 in all-solid-state lithium batteries

안지우; 최선호; 도지애; 임승우; 신동욱

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자료유형: 학술저널

저자정보: 안지우 (한양대학교) 최선호 (한양대학교) 도지애 (한양대학교) 임승우 (한양대학교) 신동욱 (한양대학교)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제19권 제5호

발행연도: 2018.10

수록면: 413 - 418 (6page)

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연구배경

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All-solid-state lithium batteries (ASSBs) using inorganic sulfide-based solid electrolytes are considered prospective alternativesto existing liquid electrolyte-based batteries owing to benefits such as non-flammability. However, it is difficult to form afavorable solid-solid interface among electrode constituents because all the constituents are solid particles. It is important toform an effective electron conduction network in composite cathode while increasing utilization of active materials and notblocking the lithium ion path, resulting in excellent cell performance. In this study, a mixture of fibrous VGCF and sphericalnano-sized Super P was used to improve rate performance by fabricating valid conduction paths in composite cathodes. Then,composite cathodes of ASSBs containing 70% and 80% active materials (LiNi0.6Co0.2Mn0.2O2) were prepared by a solutionbasedprocess to achieve uniform dispersion of the electrode components in the slurry. We investigated the influence of binarycarbon additives in the cathode of all-solid-state batteries to improve rate performance by constructing an effective electronconduction network.

#Conductive additive mixture #Solution-based process #Sulfide solid electrolyte #All-solid-state battery

참고문헌 (23)

참고문헌 신청

Y. S. Jung / 2015 / Isr. J. Chem 55(5):472~485

C. Sun / 2017 / Nano Energy 33:363~386

A. Sakuda / 2013 / Scientific reports 3:2261

S. Chen / 2018 / Energy Storage Materials 14:58~74

Z. Gao / 2018 / Adv. Mater 30(17):1705702

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