Crystal plane induced in-situ electrochemical activation of manganese-based cathode enable long-term aqueous zinc-ion batteries

Yuxin Gao; Jiang Zhou; Liping Qin; Zhenming Xu; Zhexuan Liu; Liangbing Wang; Xinxin Cao; Guozhao Fang; Shuquan Liang

Green Energy & Environment (Oct 2023)

Crystal plane induced in-situ electrochemical activation of manganese-based cathode enable long-term aqueous zinc-ion batteries

Yuxin Gao,
Jiang Zhou,
Liping Qin,
Zhenming Xu,
Zhexuan Liu,
Liangbing Wang,
Xinxin Cao,
Guozhao Fang,
Shuquan Liang

Affiliations

Yuxin Gao: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China
Jiang Zhou: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China; Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha, 410083, Hunan, China
Liping Qin: Graduate Department, Guangxi University of Science and Technology, Liuzhou, 545006, Guangxi, China; Corresponding authors.
Zhenming Xu: College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, Jiangsu, China
Zhexuan Liu: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China
Liangbing Wang: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China
Xinxin Cao: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China; Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha, 410083, Hunan, China
Guozhao Fang: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China; Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha, 410083, Hunan, China; Corresponding authors.
Shuquan Liang: School of Materials Science and Engineering, Central South University, Changsha, 410083, Hunan, China; Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province, Central South University, Changsha, 410083, Hunan, China

Journal volume & issue: Vol. 8, no. 5
pp. 1429 – 1436

Abstract

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Rapid capacity decay and sluggish reaction kinetics are major barriers hindering the applications of manganese-based cathode materials for aqueous zinc-ion batteries. Herein, the effects of crystal plane on the in-situ transformation behavior and electrochemical performance of manganese-based cathode is discussed. A comprehensive discussion manifests that the exposed (100) crystal plane is beneficial to the phase transformation from tunnel-structured MnO2 to layer-structured ZnMn3O7·3H2O, which plays a critical role for the high reactivity, high capacity, fast diffusion kinetics and long cycling stability. Additionally, a two-stage zinc storage mechanism can be demonstrated, involving continuous activation reaction and phase transition reaction. As expected, it exhibits a high capacity of 275 mAh g−1 at 100 mA g−1, a superior durability over 1000 cycles and good rate capability. This study may open new windows toward developing advanced cathodes for ZIBs, and facilitate the applications of ZIBs in large-scale energy storage system.

Published in Green Energy & Environment

ISSN: 2468-0257 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mechanical engineering and machinery: Renewable energy sources; Science: Biology (General): Ecology
Website: https://www.keaipublishing.com/en/journals/green-energy-and-environment/

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