Effects of Multiple Ion Reactions Based on a CoSe2/MXene Cathode in Aluminum‐Ion Batteries

Zeyu Yuan; Qifeng Lin; Yilin Li; Wei Han; Lili Wang

doi:10.1002/adma.202211527

journal article Mar 21, 2023

Effects of Multiple Ion Reactions Based on a CoSe2/MXene Cathode in Aluminum‐Ion Batteries

Zeyu Yuan Qifeng Lin Yilin Li

Wei Han

Lili Wang

Advanced Materials Vol. 35 No. 17 · Wiley

View at Publisher Save 10.1002/adma.202211527

Abstract

AbstractRechargeable aluminum‐ion batteries (RAIBs) have emerged as a promising battery storage technology owing to their cost‐effectiveness, operational safety, and high energy density. However, their actual capacity is substantially lower than their true capacity and their cycling stability is poor. Therefore, understanding the energy‐storage mechanism may contribute to the successful design of a stable electrode material, on which the performance can be optimized. The aim of this study is to investigate AlCl4− ions in transition metal cathode materials and mechanisms that enable for their high‐energy‐storage potential and low Coulombic efficiency. Results of theoretical analysis and experimental verification show that a multi‐ion transport mechanism is responsible for the electrochemical behavior of the battery. The lattice distortion of CoSe2 caused by AlCl4− ion intercalation, has a considerable effect on the initial stability of the battery. MXene as a support material reduces the size of CoSe2 growing on its surface, effectively inhibiting the lattice distortion caused by the interaction with the aluminum‐anion complex, thus addressing the issues of poor reversibility, cycle instability, and low Coulombic efficiency of the battery. Hence, understanding the impact of MXene on the battery may aid in further improving the design of electrode materials.

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Details

Published: Mar 21, 2023
Vol/Issue: 35(17)
License: View

Authors

Z

Zeyu Yuan

State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering University of Chinese Academy of Sciences Beijing 100083 P. R. China; College of Physics the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry International Center of Future Science Jilin University Changchun 130012 P. R. China

Q

Qifeng Lin

State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering University of Chinese Academy of Sciences Beijing 100083 P. R. China; State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 P. R. China

Y

Yilin Li

State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering University of Chinese Academy of Sciences Beijing 100083 P. R. China; College of Physics the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry International Center of Future Science Jilin University Changchun 130012 P. R. China

W

Wei Han

College of Physics the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry International Center of Future Science Jilin University Changchun 130012 P. R. China

L

Lili Wang

State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering University of Chinese Academy of Sciences Beijing 100083 P. R. China

Funding

National Natural Science Foundation of China Award: 62174152

Cite This Article

Zeyu Yuan, Qifeng Lin, Yilin Li, et al. (2023). Effects of Multiple Ion Reactions Based on a CoSe2/MXene Cathode in Aluminum‐Ion Batteries. Advanced Materials, 35(17). https://doi.org/10.1002/adma.202211527

Effects of Multiple Ion Reactions Based on a CoSe2/MXene Cathode in Aluminum‐Ion Batteries

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