Abstract

We investigate the effects of surface functionalization and polymerization on the anode characteristics of plasma synthesized-silicon nanocrystal (Si NC) based active materials for anode of lithium ion batteries (LIBs). Surface functionalized Si NCs were synthesized by adopting capping molecule to the hydride-terminated Si NCs (H–Si NCs) via hydrosilylation, and polymerization with a silane agent to form artificial solid electrolyte interphase (SEI) layer capped Si NCs, which show a dramatic decrease in SEI layer resistance (Rsei). This result demonstrates the high potential of surface functionalized Si NCs as active materials in anode of LIBs.

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