Unraveling Atomic-Scale Origins of Selective Ionic Transport Pathways and Sodium-Ion Storage Mechanism in Bi2S3 Anodes
|Corresponding Author||Shao，Ruiwen; Zhang，Qiaobao; Dong，Lixin|
It is a major challenge to achieve a high-performance anode for sodium-ion batteries (SIBs) with high specific capacity, high rate capability, and cycling stability. Bismuth sulfide, which features a high theoretical specific capacity, tailorable morphology, and low cost, has been considered as a promising anode for SIBs. Nevertheless, due to a lack of direct atomistic observation, the detailed understanding of fundamental intercalation behavior and BiS's (de)sodiation mechanisms remains unclear. Here, by employing in situ high-resolution transmission electron microscopy, consecutive electron diffraction coupled with theoretical calculations, it is not only for the first time identified that BiS exhibits specific ionic transport pathways preferred to diffuse along the (110) direction instead of the (200) plane, but also tracks their real-time phase transformations (de)sodiation involving multi-step crystallographic tuning. The finite-element analysis further disclosed multi-reaction induced deformation and the relevant stress evolution originating from the combined effect of the mechanical and electrochemical interaction. These discoveries not only deepen the understanding of fundamental science about the microscopic reaction mechanism of metal chalcogenide anodes but also provide important implications for performance optimization.
National Key R&D Program of China[2019YFB130970] ; National Natural Science Foundation of China["12004034","U1813211","52072323","52122211","11904372"] ; Beijing Natural Science Foundation[Z210006] ; General Research Fund of Hong Kong ; China Postdoctoral Science Foundation Funded Project[2021M690386]
|WOS Research Area|
Chemistry ; Science & Technology - Other Topics ; Materials Science
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
|WOS Accession No|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Mechanical and Energy Engineering|
1.Beijing Advanced Innovation Center for Intelligent Robots and Systems,School of Medical Technology,Beijing Institute of Technology,Beijing,100081,China
2.Department of Biomedical Engineering,City University of Hong Kong,999077,Hong Kong
3.Department of Electronic and Information Engineering,Changshu Institute of Technology,Suzhou,215500,China
4.Centre for Quantum Physics,Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE),School of Physics,Beijing Institute of Technology,Beijing,100081,China
5.Institute of Advanced Structure Technology,Beijing Institute of Technology,Beijing,10081,China
6.Beijing Key Laboratory of Environmental Science and Engineering,School of Materials Science & Engineering,Beijing Institute of Technology,Beijing,100081,China
7.Department of Chemical Engineering,University of California San Diego,La Jolla,92093,United States
8.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China
9.Department of Materials Science and Engineering,College of Materials,Xiamen University,Xiamen,Fujian,361005,China
Cai，Ran,Zhang，Wenqi,Zhou，Jinhua,et al. Unraveling Atomic-Scale Origins of Selective Ionic Transport Pathways and Sodium-Ion Storage Mechanism in Bi2S3 Anodes[J]. Small Methods,2022.
Cai，Ran.,Zhang，Wenqi.,Zhou，Jinhua.,Yang，Kaishuai.,Sun，Linfeng.,...&Dong，Lixin.(2022).Unraveling Atomic-Scale Origins of Selective Ionic Transport Pathways and Sodium-Ion Storage Mechanism in Bi2S3 Anodes.Small Methods.
Cai，Ran,et al."Unraveling Atomic-Scale Origins of Selective Ionic Transport Pathways and Sodium-Ion Storage Mechanism in Bi2S3 Anodes".Small Methods (2022).
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