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Reducing volume expansion in micro silicon anodes via aramid nanofibers for stable lithium-ion batteries.

Qingqing LiuWei TangChen YangWenlong CaiFeng ChenQiang Fu
Published in: Chemical communications (Cambridge, England) (2023)
The aramid nanofibers form networks on micro silicon particles (ANF-SMPs) by cryofixation and acid-induced protonation, whose zongzi-like wrapping structure reduces volume expansion during (de)lithiation. The obtained ANF-SMP electrode achieves a high capacity retention of 90.7% after 100 cycles at 0.5C, which maps a promising future for anodes with a long lifespan.
Keyphrases
  • ion batteries
  • current status
  • carbon nanotubes