High capacity after 1000 cycles
SiO2 inner stress and N-doped carbon shell synergistically suppress silicon volume expansion and promote a more stable inorganic-rich SEI, markedly extending cycle life.
Xiao, Zhexi · Huang, Yudai · Yukang, Zhu · Zhu, Zhenxing · Zhang, Qi · Jia, Dianzeng · Zhang, Shijun · Wei, Fei
Small 2023
High reversible capacity of 577 mAh g⁻¹ after 1000 cycles at 1 A g⁻¹
In situ thickness measurement shows significantly smaller volume expansion than pure Si during charge-discharge