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

• DOI: 10.1039/d3cc01909h
• Publication Date: 2023-05-26T01:02:04Z
• Authors: Qingqing Liu; Wei Tang; Chen Yang; Wenlong Cai; Feng Chen; Qiang Fu
• Keywords: Aramid; Volume expansion

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. obtained ANF-SMP electrode achieves a high capacity retention of 90.7% after 100 cycles at 0.5C, which maps promising future for anodes with long lifespan.