Room-temperature Operation of All-solid-state Chloride-ion Battery with Perovskite-type CsSn<sub>0.95</sub>Mn<sub>0.05</sub>Cl<sub>3</sub> as a Solid Electrolyte
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- SAKAMOTO Ryo
- Institute for Materials Chemistry and Engineering, Kyushu University
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- SHIRAI Nobuaki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
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- ZHAO Liwei
- Institute for Materials Chemistry and Engineering, Kyushu University
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- INOISHI Atsushi
- Institute for Materials Chemistry and Engineering, Kyushu University
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- SAKAEBE Hikari
- Institute for Materials Chemistry and Engineering, Kyushu University
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- OKADA Shigeto
- Transdisciplinary Research and Education Center for Green Technologies, Kyushu University
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説明
<p>Perovskite-type CsSnCl3 is an attractive candidate for use as a solid electrolyte in all-solid-state chloride-ion batteries because it exhibits high ionic conductivity. However, perovskite-type CsSnCl3 is metastable at room temperature and easily undergoes a phase transition to a stable phase. Here, we prepared perovskite-type CsSn0.95Mn0.05Cl3, in which the Sn2+ in CsSnCl3 is partly substituted with Mn2+, via a mechanical milling method. Differential scanning calorimetry showed that the perovskite-type CsSn0.95Mn0.05Cl3 is stable to −15 °C. Moreover, it exhibits a high chloride ionic conductivity of 2.0 × 10−4 S cm−1 at 25 °C. We demonstrated the room-temperature operation of an all-solid-state chloride-ion battery with a BiCl3 cathode, an Sn anode, and CsSn0.95Mn0.05Cl3 as the electrolyte. The first discharge capacity of the all-solid-state cell at room temperature was 169 mAh g−1 based on the weight of BiCl3. X-ray diffraction and X-ray photoelectron spectroscopic analyses confirmed that the reaction mechanism of the cell is derived from the redox reaction of BiCl3 and Sn.</p>
収録刊行物
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- Electrochemistry
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Electrochemistry 91 (7), 077003-077003, 2023-07-04
公益社団法人 電気化学会
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詳細情報 詳細情報について
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- CRID
- 1390296666511146752
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- ISSN
- 21862451
- 13443542
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用可