Progressive growth of the solid–electrolyte interphase towards the Si anode interior causes capacity fading

• Published in: Nature nanotechnology Vol. 16; no. 10; pp. 1113 - 1120
• Main Authors: He, Yang, Jiang, Lin, Chen, Tianwu, Xu, Yaobin, Jia, Haiping, Yi, Ran, Xue, Dingchuan, Song, Miao, Genc, Arda, Bouchet-Marquis, Cedric, Pullan, Lee, Tessner, Ted, Yoo, Jinkyoung, Li, Xiaolin, Zhang, Ji-Guang, Zhang, Sulin, Wang, Chongmin
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.10.2021; Nature Publishing Group
• Subjects: 639/301/299/161/891; 639/4077/4079/891; Algorithms; batteries; Chemical evolution; Chemical reactions; Chemistry and Materials Science; Condensates; Control stability; Cycles; Electrochemistry; Electrode materials; Electrodes; Electrolytes; Evolution; Fading; Flux density; Interphase; MATERIALS SCIENCE; Nanotechnology; Nanotechnology and Microengineering; Percolation; Scanning electron microscopy; Scanning transmission electron microscopy; Silicon; Tomography; Transmission electron microscopy

The solid–electrolyte interphase (SEI), a layer formed on the electrode surface, is essential for electrochemical reactions in batteries and critically governs the battery stability. Active materials, especially those with extremely high energy density, such as silicon (Si), often inevitably undergo...