Nature Communications (May 2021)

Interplay between electrochemical reactions and mechanical responses in silicon–graphite anodes and its impact on degradation

  • Junhyuk Moon,
  • Heung Chan Lee,
  • Heechul Jung,
  • Shinya Wakita,
  • Sungnim Cho,
  • Jaegu Yoon,
  • Joowook Lee,
  • Atsushi Ueda,
  • Bokkyu Choi,
  • Sihyung Lee,
  • Kimihiko Ito,
  • Yoshimi Kubo,
  • Alan Christian Lim,
  • Jeong Gil Seo,
  • Jungho Yoo,
  • Seungyeon Lee,
  • Yongnam Ham,
  • Woonjoong Baek,
  • Young-Gyoon Ryu,
  • In Taek Han

DOI
https://doi.org/10.1038/s41467-021-22662-7
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

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The degradation in silicon-graphite anodes is originated from Li ion crosstalk between silicon and graphite, and the pressure-induced staging transition of the graphite. Here, the authors demonstrate a prismatic cell with improved volumetric energy density and cycle stability by targeted solving above issues.