Journal Article

Embedded Si/Graphene Composite Fabricated by Magnesium-Thermal Reduction as Anode Material for Lithium-Ion Batteries

Zhu, Jiangliu, Yang, Bo, Ding, Jianning, Ren, Yurong, Chen, Wenkai

2017

Overview

Embedded Si/graphene composite was fabricated by a novel method, which was in situ generated SiO 2 particles on graphene sheets followed by magnesium-thermal reduction. The tetraethyl orthosilicate (TEOS) and flake graphite was used as original materials. On the one hand, the unique structure of as-obtained composite accommodated the large volume change to some extent. Simultaneously, it enhanced electronic conductivity during Li-ion insertion/extraction. The MR-Si/G composite is used as the anode material for lithium ion batteries, which shows high reversible capacity and ascendant cycling stability reach to 950 mAh·g −1 at a current density of 50 mA·g −1 after 60 cycles. These may be conducive to the further advancement of Si-based composite anode design.

• Publisher: Springer US,Springer Nature B.V,SpringerOpen
• Subject: Anode material / Anodes / Aqueous solutions / Batteries / Carbon / Chemistry and Materials Science / Composite materials / Design / Electrode materials / Electrodes / Embedded Si/graphene composite / Fourier transforms / Graphene / Graphite / Lithium / Lithium-ion batteries / Magnesium / Magnesium-thermal reduction / Materials Science / Molecular Medicine / Nano Express / Nanochemistry / Nanoparticles / Nanoscale Science and Technology / Nanotechnology / Nanotechnology and Microengineering / Rechargeable batteries / Silicon / Silicon dioxide / Tetraethoxysilane / Tetraethyl orthosilicate / Thermal reduction