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

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhu, Jiangliu, Ren, Yurong, Yang, Bo, Chen, Wenkai, Ding, Jianning
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2017
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5732117/
https://www.ncbi.nlm.nih.gov/pubmed/29247261
http://dx.doi.org/10.1186/s11671-017-2400-6
Descripción
Sumario: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.

Ejemplares similares