Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Synthesis and Electrochemical Performance of Electrostatic Self-Assembled [email protected] Reduced Graphene Oxide/Carbon Nanofibers Composite as Anode Material for Lithium-Ion Batteries

Version 1 : Received: 14 June 2021 / Approved: 15 June 2021 / Online: 15 June 2021 (14:48:47 CEST)

How to cite: Cong, R.; Park, H.; Jo, M.; Lee, H.; Lee, C. Synthesis and Electrochemical Performance of Electrostatic Self-Assembled [email protected] Reduced Graphene Oxide/Carbon Nanofibers Composite as Anode Material for Lithium-Ion Batteries. Preprints 2021, 2021060411 (doi: 10.20944/preprints202106.0411.v1). Cong, R.; Park, H.; Jo, M.; Lee, H.; Lee, C. Synthesis and Electrochemical Performance of Electrostatic Self-Assembled [email protected] Reduced Graphene Oxide/Carbon Nanofibers Composite as Anode Material for Lithium-Ion Batteries. Preprints 2021, 2021060411 (doi: 10.20944/preprints202106.0411.v1).

Abstract

We report a self-assembly synthesis of silicon nanoparticles/nitrogen-doped reduced graphene oxide/ carbon nanofiber ([email protected] rGO/CNF) composites as potential high-performance anodes for rechargeable lithium-ion batteries (LIB) through the electrostatic attraction between amino and carboxyl groups. Nitrogen atoms generate a large number of vacancies or defects on the graphite plane, providing additional transmission channels for the diffusion of lithium ions, and improving the conductivity of the electrode. Carbon nanofiber (CNF) can help maintain the stability of the electrode structure and prevent silicon nanoparticles from falling off the electrode, prevent silicon nanoparticles from being directly exposed to the electrolyte, and can form a stable solid electrolyte interface (SEI) film. The three-dimensional conductive structure composed of Si, nitrogen atom-doped reduced graphene oxide (N-doped rGO), and CNF can effectively buffer the volume changes of silicon nanoparticles, shorten the transmission distance of lithium ions (Li+) and electrons, and make the electrode have good conductivity and stability in mechanical properties. In addition, compared with the [email protected] rGO and Si/rGO/CNF composite electrode, the [email protected] rGO/CNF composite electrode shows good cycle performance and rate capability, and its reversible specific capacity can reach 1418.8 mAh/g. The capacity retention rate is 64.7%, and the coulomb efficiency is 95%.

Subject Areas

lithium-ion battery; silicon nanoparticles; nitrogen-doped graphene; carbon nanofibers; anode material

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.