Bibliographic Details
| Title: |
Vertically Fluorinated Graphene Encapsulated SiOx Anode for Enhanced Li+ Transport and Interfacial Stability in High‐Energy‐Density Lithium Batteries. |
| Authors: |
Huang, Lin‐Bo, Zhao, Lu, Ma, Zhi‐Feng, Zhang, Xing, Zhang, Xu‐Sheng, Lu, Zhuo‐Ya, Li, Ge, Luo, Xiao‐Xi, Wen, Rui, Xin, Sen, Meng, Qinghai, Guo, Yu‐Guo |
| Source: |
Angewandte Chemie; 11/18/2024, Vol. 136 Issue 47, p1-9, 9p |
| Subject Terms: |
ENERGY storage, ENERGY density, NEGATIVE electrode, SOLID electrolytes, ANODES |
| Abstract: |
Achieving high energy density has always been the goal of lithium‐ion batteries (LIBs). SiOx has emerged as a compelling candidate for use as a negative electrode material due to its remarkable capacity. However, the huge volume expansion and the unstable electrode interface during (de)lithiation, hinder its further development. Herein, we report a facile strategy for the synthesis of surface fluorinated SiOx (SiOx@vG−F), and investigate their influences on battery performance. Systematic experiments investigations indicate that the reaction between Li+ and fluorine groups promotes the in situ formation of stable LiF‐rich solid electrolyte interface (SEI) on the surface of SiOx@vG−F anode, which effectively suppresses the pulverization of microsized SiOx particles during the charge and discharge cycle. As a result, the SiOx@vG−F enabled a higher capacity retention of 86.4 % over 200 cycles at 1.0 C in the SiOx@vG−F||LiNi0.8Co0.1Mn0.1O2 full cell. This approach will provide insights for the advancement of alternative electrode materials in diverse energy conversion and storage systems. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
