Intercalation-Induced Localized Conversion Reaction in h-CuSe for Ultrafast-Rechargeable and Long-Cycling Sodium Metal Battery.

Autor: Chen D; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China., Xu Y; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China., Lu J; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China., Tian Y; Zhijiang Lab, Hangzhou, 311121, China., Li T; School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China., Jia P; State Key Laboratory of Metastable Materials Science and Technology, School of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China., Wang X; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China., Zhang L; State Key Laboratory of Metastable Materials Science and Technology, School of Materials Science and Engineering, Yanshan University, Qinhuangdao, 066004, China., Hou Y; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China., Wang L; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China., Zhang Q; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China., Ye Z; State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China., Lu J; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Aug; Vol. 36 (32), pp. e2404640. Date of Electronic Publication: 2024 Jun 12.
DOI: 10.1002/adma.202404640
Abstrakt: Cathode materials of sodium-based batteries with high specific capacity and fast charge-discharge mode, as well as ultralong reversible cycles at wide applied temperatures, are essential for future development of advanced energy storage system. Developing transition metal selenides with intercalation features provides a new strategy for realizing the above cathode materials. Herein, this work reports a storage mechanism of sodium ion in hexagonal CuSe (h-CuSe) based on the density functional theory (DFT) guidance. This work reveals that the two-dimensional ion intercalation triggers localized redox reaction in the h-CuSe bulk phase, termed intercalation-induced localized conversion (ILC) mechanism, to stabilize the sodium storage structure by forming localized Cu 7 Se 4 transition phase and adjusting the near-edge coordination state of the Cu sites to achieve high reversible capacity and ultra-long cycling life, while allowing rapid charge-discharge cycling over a wide temperature range.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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