Development of Si-C hybrid nanocomposite for Li-ion batteries with optimum silicon to polydopamine weight ratio

Aamna Hameed, Daniel S. Choi

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Different weight ratio of Si and polydopamine (PDA) has been employed for encapsulation of Si nanoparticles with PDA to buffer Si volume expansion and provide a pathway for Li ion transport. Si-C composite anodes have been developed and studied for Li-ion batteries (LIBs) by carrying out electrochemical characterization. The morphological properties of Si-C composites were also investigated. It was found that the 1:1Si to PDA weight ratio composite electrode led to high electrochemical performances. It delivered a high initial discharge capacity of 3451 mAhg−1 at 0.05C and retained greater capacity at higher C-rate compared to other composites.

Original languageBritish English
Article number132539
JournalMaterials Letters
Volume323
DOIs
StatePublished - 15 Sep 2022

Keywords

  • Anodes
  • Lithium-ion batteries
  • MWCNT
  • Silicon nanocomposites

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