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Optimizing LiMn$$_{1.5}$$M$$_{0.5}$$O$$_{4}$$ cathode materials for aqueous photo-rechargeable batteries

下川 航平*; 松原 翔吾*; 河口 智也*; 岡本 章玄*; 市坪 哲

Shimokawa, Kohei*; Matsubara, Shogo*; Kawaguchi, Tomoya*; Okamoto, Akihiro*; Ichitsubo, Tetsu

Spinel oxides can be a promising high-potential cathode material of photo-rechargeable batteries. However, LiMn$$_{1.5}$$M$$_{0.5}$$O$$_{4}$$ (M = Mn) has a difficulty in a rapid degradation during charge/discharge under the illumination of UV-visible light. In this study, various spinel-oxide materials by modifying the composition (M = Fe, Co, Ni, Zn) were investigated to demonstrate photocharging in a water-in-salt aqueous electrolyte. LiMn$$_{1.5}$$Fe$$_{0.5}$$O$$_{4}$$ showed a substantially higher discharge capacity compared to that of LiMn$$_{2}$$O$$_{4}$$ after long-term photocharging owing to enhanced stability under illumination. The result of this work provides fundamental design guidelines of spinel-oxide cathode materials to develop photo-rechargeable batteries.

使用言語

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English

掲載資料名

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Chemical Communications

巻

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59

号

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51

ページ数

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p.7947 - 7950

発行年月

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2023/06

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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光蓄電池

特許データ

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PDF

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論文URL

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https://doi.org/10.1039/D3CC01902K

研究データの公開先DOI

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使用施設

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広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

InCites™

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パーセンタイル：0

分野：Chemistry, Multidisciplinary

Altmetrics

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