Electrospraying Si/SiO x /C and Sn/C nanosphere arrays on carbon cloth for high-performance flexible lithium-ion batteries

Di Chen, Rui Li, Chunxue Liu, Kai Jiang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Exploring electrode materials with larger capacity, higher power density and longer cycle life was critical for developing advanced flexible lithium-ion batteries (LIBs). Herein, we used a controlled two-step method including electrospraying followed with calcination treatment by CVD furnace to design novel electrodes of Si/Si x /C and Sn/C microrods array consisting of nanospheres on flexible carbon cloth substrate (denoted as Si/Si x /C@CC, Sn/C@CC). Microrods composed of cumulated nanospheres (the diameter was approximately 120 nm) had a mean diameter of approximately 1.5 µm and a length of around 4.0 µm, distributing uniformly along the entire woven carbon fibers. Both of Si/Si/Si x /C@CC and Sn/C@CC products were synthesized as binder-free anodes for Li-ion battery with the features of high reversible capacity and excellent cycling. Especially Si/Si x /C electrode exhibited high specific capacity of about 1750 mA∙h∙g−1 at 0.5 A∙g−1 and excellent cycling ability even after 1050 cycles with a capacity of 1388 mA∙h∙g−1. Highly flexible Si/Si x /C@CC//LiCoO2 batteries based on liquid and solid electrolytes were also fabricated, exhibiting high flexibility, excellent electrical stability and potential applications in flexible wearable electronics.

Original languageEnglish
Article number012605
JournalJournal of Semiconductors
Volume46
Issue number1
DOIs
Publication statusPublished - 1 Jan 2025

Keywords

  • electrospraying
  • lithium-ion batteries
  • Si/SiO /C
  • Sn/C

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