中文版 | English
Title

Trapping Lithium Selenides with Evolving Heterogeneous Interfaces for High-Power Lithium-Ion Capacitors

Author
Corresponding AuthorZou, Guoqiang
Publication Years
2023
DOI
Source Title
ISSN
1613-6810
EISSN
1613-6829
Abstract
Transition metal selenides anodes with fast reaction kinetics and high theoretical specific capacity are expected to solve mismatched kinetics between cathode and anode in Li-ion capacitors. However, transition metal selenides face great challenges in the dissolution and shuttle problem of lithium selenides, which is the same as Li-Se batteries. Herein, inspired by the density functional theory calculations, heterogeneous can enhance the adsorption of Li2Se relative to single component selenide electrodes, thus inhibiting the dissolution and shuttle effect of Li2Se. A heterostructure material (denoted as CoSe2/SnSe) with the ability to evolve continuously (CoSe2/SnSe→Co/Sn→Co/Li13Sn5) is successfully designed by employing CoSnO3-MOF as a precursor. Impressively, CoSe2/SnSe heterostructure material delivers the ultrahigh reversible specific capacity of 510 mAh g−1 after 1000 cycles at the high current density of 4 A g−1. In situ XRD reveals the continuous evolution of the interface based on the transformation and alloying reactions during the charging and discharging process. Visualizations of in situ disassembly experiments demonstrate that the continuously evolving interface inhibits the shuttle of Li2Se. This research proposes an innovative approach to inhibit the dissolution and shuttling of discharge intermediates (Li2Se) of metal selenides, which is expected to be applied to metal sulfides or Li-Se and Li-S energy storage systems.
© 2023 Wiley-VCH GmbH.
Indexed By
EI ; SCI
Language
English
SUSTech Authorship
Others
Funding Project
This work was supported by the National Natural Science Foundation of China (52004338, 51622406, 21673298), Scientific Research Fund of Hunan Provincial Education Department (21B0017), and Hunan Provincial Natural Science Foundation (2022JJ20075).
WOS Accession No
WOS:000910086400001
Publisher
EI Accession Number
20230313390095
EI Keywords
Anodes ; Density functional theory ; Dissolution ; Ions ; Lithium compounds ; Lithium-ion batteries ; Reaction kinetics ; Sulfur compounds ; Tin compounds ; Transition metals
ESI Classification Code
Metallurgy and Metallography:531 ; Electron Tubes:714.1 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4
Data Source
EV Compendex
Citation statistics
Cited Times [WOS]:6
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/519630
DepartmentDepartment of Chemistry
深圳格拉布斯研究院
Affiliation
1.College of Chemistry and Chemical Engineering, Central South University, Hunan, Changsha; 410083, China
2.Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Guangdong, Shenzhen; 518055, China
3.College of Materials and Advanced Manufacturing, Hunan University of Technology, Hunan, Zhuzhou; 412007, China
Recommended Citation
GB/T 7714
Tao, Shusheng,Momen, Roya,Luo, Zheng,et al. Trapping Lithium Selenides with Evolving Heterogeneous Interfaces for High-Power Lithium-Ion Capacitors[J]. Small,2023.
APA
Tao, Shusheng.,Momen, Roya.,Luo, Zheng.,Zhu, Yirong.,Xiao, Xuhuan.,...&Ji, Xiaobo.(2023).Trapping Lithium Selenides with Evolving Heterogeneous Interfaces for High-Power Lithium-Ion Capacitors.Small.
MLA
Tao, Shusheng,et al."Trapping Lithium Selenides with Evolving Heterogeneous Interfaces for High-Power Lithium-Ion Capacitors".Small (2023).
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