Bulk-Type Lithium Metal Secondary Battery with Indium Thin Layer at Interface between Li Electrode and Li₂S-P₂S₅ Solid Electrolyte

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  • NAGAO Motohiro
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
  • HAYASHI Akitoshi
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University
  • TATSUMISAGO Masahiro
    Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University

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タイトル別名
  • Bulk-Type Lithium Metal Secondary Battery with Indium Thin Layer at Interface between Li Electrode and Li<sub>2</sub>S-P<sub>2</sub>S<sub>5</sub> Solid Electrolyte

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説明

To enhance a cyclability and a rate capability in bulk-type solid-state cells using a lithium metal electrode, an indium thin layer prepared by vacuum-evaporation was inserted at the interface between a lithium electrode and an Li2S-P2S5 solid electrolyte layer. The Li/Li4Ti5O12 cells using indium thin film were charged and discharged for 120 cycles reversibly and worked at the high current density of 1.3 mA cm−2. Inserting lithium-alloy thin layer at the interface between the lithium electrode and the solid electrolyte layer brought about a good cyclability and a high rate capability for the all-solid-state lithium metal cells because of the formation and retention of intimate contacts at the interface. The obtained results are useful for achieving bulk-type solid-state lithium batteries with high power and energy densities.

収録刊行物

  • Electrochemistry

    Electrochemistry 80 (10), 734-736, 2012

    公益社団法人　電気化学会

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