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Stainless Steel-Like Passivation Inspires Persistent Silicon Anodes for Lithium-Ion Batteries.
Lin, Jie; Wang, Laisen; Xie, Qingshui; Luo, Qing; Peng, Dong-Liang; Buddie Mullins, C; Heller, Adam.
Afiliación
  • Lin J; College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian, 361005, P. R. Chin
  • Wang L; College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian, 361005, P. R. Chin
  • Xie Q; College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian, 361005, P. R. Chin
  • Luo Q; College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian, 361005, P. R. Chin
  • Peng DL; College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, and Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian, 361005, P. R. Chin
  • Buddie Mullins C; Department of Chemical Engineering, Department of Chemistry, and Texas Materials Institute, University of Texas at Austin, Austin, TX 78712, USA.
  • Heller A; Department of Chemical Engineering, Department of Chemistry, and Texas Materials Institute, University of Texas at Austin, Austin, TX 78712, USA.
Angew Chem Int Ed Engl ; 62(11): e202216557, 2023 Mar 06.
Article en En | MEDLINE | ID: mdl-36510474
Passivation of stainless steel by additives forming mass-transport blocking layers is widely practiced, where Cr element is added into bulk Fe-C forming the Cr2 O3 -rich protective layer. Here we extend the long-practiced passivation concept to Si anodes for lithium-ion batteries, incorporating the passivator of LiF/Li2 CO3 into bulk Si. The passivation mechanism is studied by various ex situ characterizations, redox peak contour maps, thickness evolution tests, and finite element simulations. The results demonstrate that the passivation can enhance the (de)lithiation of Li-Si alloys, induce the formation of F-rich solid electrolyte interphase, stabilize the Si/LiF/Li2 CO3 composite, and mitigate the volume change of Si anodes upon cycling. The 3D passivated Si anode can fully retain a high capacity of 3701 mAh g-1 after 1500 cycles and tolerate high rates up to 50C. This work provides insight into how to construct durable Si anodes through effective passivation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2023 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2023 Tipo del documento: Article Pais de publicación: Alemania