• Title/Summary/Keyword: 이차 전지

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Electrochemical Performance of Rechargeable Lithium Battery Using Hybrid Solid Electrolyte (복합고체 전해질을 적용한 리튬이차전지의 전기화학적 특성)

  • Han, Jong Su;Yu, Hakgyoon;Kim, Jae-Kwang
    • Journal of the Korean Electrochemical Society
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    • v.24 no.4
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    • pp.100-105
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    • 2021

  • Recently, all-solid-state batteries have attracted much attention to improve safety of rechargeable lithium batteries, but the solid-state batteries of conductive ceramics or solid polymer electrolytes show poor electrochemical properties because of several problems such as high interfacial resistance and undesired reactions. To solve the problems of the reported all-solid-state batteries, a hybrid solid electrolyte is suggested, in this study, NASICON-type nanoparticle Li1.5Al0.5Ti1.5P3O12 (LATP) conductive ceramic, PVdF-HFP, and a carbonate-based liquid electrolyte were composited to prepare a quasi-solid electrolyte. The hybrid solid electrolyte has a high voltage stability of 5.6 V and shows an suppress effect of lithium dendrite growth in the stripping-plating test. The LiNi0.83Co0.11Mn0.06O2 (NCM811)-based battery with the hybrid solid electrolyte exhibits a high discharge capacity of 241.5 mAh/g at a high charge-cut-off voltage of 4.8V and stable electrochemical reaction. The NCM811-based battery also shows 139.4 mAh/g discharge capacity without short circuit or explosion at 90℃. Therefore, the LATP-based hybrid solid electrolyte can be an effective solution to improve the safety and electrochemical properties of rechargeable lithium batteries.

  • https://doi.org/10.5229/JKES.2021.24.4.100 인용 PDF KSCI

Research Review of Sodium and Sodium Ion Battery (나트륨을 활용한 이차전지 연구동향)

  • Ryu, Cheol-Hwi;Kang, Seong-Gu;Kim, Jin-Bae;Hwang, Gab-Jin
    • Journal of Hydrogen and New Energy
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    • v.26 no.1
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    • pp.54-63
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    • 2015

  • The secondary battery using sodium is investigating as one of power storage system and power in electric vehicles. The secondary battery using sodium as a sodium battery and sodium ion battery had merits such as a abundant resources, high energy density and safety. Sodium battery (sodium molten salt battery) is operated at lower temperature ($100^{\circ}C$) compared to NAS and ZEBRA battery ($300{\sim}350^{\circ}C$). Sodium ion battery is investigating as one of the post lithium ion battery. In this paper, it is explained for the principle and recent research trends in sodium molten salt and sodium ion battery.

  • https://doi.org/10.7316/KHNES.2015.26.1.054 인용 PDF KSCI