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FePS3 electrodes in all-solid-state lithium secondary batteries using sulfide-based solid electrolytes

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Title: FePS3 electrodes in all-solid-state lithium secondary batteries using sulfide-based solid electrolytes
Authors: Fujii, Yuta Browse this author
Miura, Akira Browse this author →KAKEN DB
Rosero-Navarro, Nataly Carolina Browse this author
Higuchi, Mikio Browse this author
Tadanaga, Kiyoharu Browse this author
Keywords: all-solid-state lithium batteries
Fe-based electrode
sulfide-based electrode
Issue Date: 1-Jul-2017
Publisher: Elsevier
Journal Title: Electrochimica acta
Volume: 241
Start Page: 370
End Page: 374
Publisher DOI: 10.1016/j.electacta.2017.04.089
Abstract: In bulk-type all-solid-state lithium batteries with sulfide-based solid electrolytes, composite electrodes, in which an active material, a solid electrolyte, and a conductive additive are mixed, have been used to enhance lithium-ion diffusion and electronic conductivity. However, the addition of electrolytes and electron-conductive additives to the composite electrodes decreases the amount of active materials in the batteries. In the present study, FePS3 was employed as the electrode in an all-solid-state lithium secondary battery, without mixing the solid electrolytes and conductive additives. The all-solid-state cell using the FePS3 electrode exhibited reversible charge-discharge behavior for more than 30 cycles under a constant current density of 0.13 mA cm (2) at room temperature. The discharge capacity of the cell was 107 mAh g (1) at the 30th cycle. This behavior was comparable to that of a cell with an electrode including a solid electrolyte and/or a conductive additive, indicating that the FePS3 electrode had sufficient paths of lithium ions and of electron conduction. These results suggest that FePS3 is an attractive iron-based electrode for an all-solid-state battery using a sulfide-based solid electrolyte. (C) 2017 Elsevier Ltd. All rights reserved.
Rights: © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 三浦 章

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