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Light-induced Li extraction from LiMn$$_{2}$$O$$_{4}$$/TiO$$_{2}$$ in a water-in-salt electrolyte for photo-rechargeable batteries

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

Photocharging of high-potential spinel LiMn$$_{2}$$O$$_{4}$$ is demonstrated by using a water-in-salt electrolyte and TiO$$_{2}$$ nanoparticles. In a developed half-cell system with an electron acceptor, Li extraction from LiMn$$_{2}$$O$$_{4}$$ proceeds under the illumination of UV-visible light at an estimated rate of c.a. 23 mA g$$^{-1}$$. This work paves the way for highpotential cathode materials in photo-rechargeable batteries.



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Category:Chemistry, Multidisciplinary



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