Optimizing LiMn1.5M0.5O4 cathode materials for aqueous photo-rechargeable batteries

被引：1

作者：

Shimokawa, Kohei ^{[1
,2
]}

Matsubara, Shogo ^{[3
]}

Kawaguchi, Tomoya ^{[2
]}

Okamoto, Akihiro ^{[4
,5
,6
,7
]}

Ichitsubo, Tetsu ^{[2
,8
]}

机构：

[1] Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, 6-3 Aramaki Aza Aoba,Aoba Ku, Sendai 9808578, Japan

[2] Tohoku Univ, Inst Mat Res, 2-1-1 Katahira,Aoba Ku, Sendai 9808577, Japan

[3] Nagoya Inst Technol, Grad Sch Engn, Dept Life Sci & Appl Chem, Gokiso Cho,Show Ku, Nagoya 4668555, Japan

[4] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan

[5] Natl Inst Mat Sci, Res Ctr Macromol & Biomat, 1-1 Namiki, Tsukuba 3050044, Japan

[6] Hokkaido Univ, Grad Sch Chem Sci & Engn, North 13 West 8, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[7] Univ Tsukuba, Grad Sch Sci & Technol, 1-1-1 Tennodai, Tsukuba 3058577, Japan

[8] Japan Atom Energy Agcy, Adv Sci Res Ctr, 2-4 Shirakata, Tokai Mura, Naka, Ibaraki 3191195, Japan

来源：

CHEMICAL COMMUNICATIONS | 2023年 / 59卷 / 51期

关键词：

D O I：

10.1039/d3cc01902k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Spinel oxides are promising for high-potential cathode materials of photo-rechargeable batteries. However, LiMn1.5M0.5O4 (M = Mn) shows a rapid degradation during charge/discharge under the illumination of UV-visible light. Here, we investigate various spinel-oxide materials by modifying the composition (M = Fe, Co, Ni, Zn) to demonstrate photocharging in a water-in-salt aqueous electrolyte. LiMn1.5Fe0.5O4 exhibited a substantially higher discharge capacity compared to that of LiMn2O4 after long-term photocharging owing to enhanced stability under illumination. This work provides fundamental design guidelines of spinel-oxide cathode materials for the development of photo-rechargeable batteries.

引用

页码：7947 / 7950

页数：4

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