Issue 69, 2022
From the journal:

Chemical Communications

Light-induced Li extraction from LiMn2O4/TiO2 in a water-in-salt electrolyte for photo-rechargeable batteries†

Kohei Shimokawa, ORCID logo *ab   Shogo Matsubara, ORCID logo c   Akihiro Okamoto ORCID logo de  and  Tetsu Ichitsubo ORCID logo *bf  

* Corresponding authors

a Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
E-mail: kohei.shimokawa.b7@tohoku.ac.jp

b Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
E-mail: tichi@imr.tohoku.ac.jp

c Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Show-ku, Nagoya 466-8555, Japan

d International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

e Graduate School of Chemical Sciences and Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan

f Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan

Abstract

Photocharging of high-potential spinel LiMn2O4 is demonstrated by using a water-in-salt electrolyte and TiO2 nanoparticles. In a developed half-cell system with an electron acceptor, Li extraction from LiMn2O4 proceeds under the illumination of UV-visible light at an estimated rate of ∼23 mA g−1. This work paves the way for high-potential cathode materials in photo-rechargeable batteries.

Graphical abstract: Light-induced Li extraction from LiMn2O4/TiO2 in a water-in-salt electrolyte for photo-rechargeable batteries

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Article information

DOI
https://doi.org/10.1039/D2CC03362C
Article type
Communication
Submitted
15 Jun 2022
Accepted
28 Jul 2022
First published
08 Aug 2022

Chem. Commun., 2022,58, 9634-9637

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Light-induced Li extraction from LiMn2O4/TiO2 in a water-in-salt electrolyte for photo-rechargeable batteries

K. Shimokawa, S. Matsubara, A. Okamoto and T. Ichitsubo, Chem. Commun., 2022, 58, 9634 DOI: 10.1039/D2CC03362C

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