<i>In situ</i> Electrolyte Design: Understanding the Prospects and Limitations of a High Capacity Ca(BH<sub>4</sub>)<sub>2</sub> Anode for All Solid State Batteries
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- Yixin Chen
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University Kasuga-koen 6-1 Kasuga Fukuoka 816-8580 Japan
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- Ryo Sakamoto
- Office of Society Academia Collaboration for Innovation Kyoto University Funai Center, Nishikyo-ku Kyoto 615-8530 Japan
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- Atsushi Inoishi
- Institute for Materials Chemistry and Engineering Kyushu University Kasuga-koen 6-1 Kasuga Fukuoka 816-8580 Japan
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- Shigeto Okada
- Transdisciplinary Research and Education Centre for Green Technology Kyushu University Kasuga-koen 6-1 Kasuga Fukuoka 816-8580 Japan
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- Hikari Sakaebe
- Institute for Materials Chemistry and Engineering Kyushu University Kasuga-koen 6-1 Kasuga Fukuoka 816-8580 Japan
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- Ken Albrecht
- Institute for Materials Chemistry and Engineering Kyushu University Kasuga-koen 6-1 Kasuga Fukuoka 816-8580 Japan
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- Duncan H. Gregory
- WestCHEM School of Chemistry University of Glasgow GlasgowG12 8QQ United Kingdom
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説明
<jats:title>Abstract</jats:title><jats:p>All‐solid‐state batteries have gained considerable attention due to their high safety and energy density. However, solid state electrolytes which contribute to the ionic conductivity component of a composite electrode, are not utilized during the electrode reaction and cannot directly contribute to capacity. This study focuses on decreasing the amount of electrolyte in the electrode by utilizing Ca(BH<jats:sub>4</jats:sub>)<jats:sub>2</jats:sub> as an active electrode material. In this work, the charge‐discharge properties of Ca(BH<jats:sub>4</jats:sub>)<jats:sub>2</jats:sub> as an electrode material were determined for the first time. The lithiation of the Ca(BH<jats:sub>4</jats:sub>)<jats:sub>2</jats:sub> anode creates LiBH<jats:sub>4</jats:sub> within the electrode mixture, providing new Li‐ion conduction pathways within the composite electrode <jats:italic>in situ</jats:italic>. An electrode fabricated only from Ca(BH<jats:sub>4</jats:sub>)<jats:sub>2</jats:sub> and acetylene black (AB) showed an initial capacity of 473 mAh g<jats:sup>−1</jats:sup> at 120 °C, which is comparable to the performance obtained from a composite electrode additionally containing electrolyte. Evidently, Ca(BH<jats:sub>4</jats:sub>)<jats:sub>2</jats:sub> is a promising candidate negative electrode for increased energy density all‐solid‐state Li‐ion batteries.</jats:p>
収録刊行物
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- Batteries & Supercaps
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Batteries & Supercaps 7 (4), 2024-02-02
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360021390751199488
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- ISSN
- 25666223
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
