Back to Search
Start Over
A one-pot method to fabricate reduced graphene oxide (rGO)-coated Si@SiOx@β-Bi2O3/Bi composites for lithium-ion batteries.
- Source :
-
Electrochimica Acta . Sep2021, Vol. 390, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- Silicon has demonstrated inordinate potential as anode material for next-generation lithium-ion batteries due to its high theoretical specific capacity. Nevertheless, the structural dilapidation during the lithiation/delithiation process has restricted its large-scope application. To conquer these challenges, we design a novel reduced graphene oxide (rGO)-coated Si@SiO x @β-Bi 2 O 3 /Bi composite by a facile one-pot method. The Bi 2 O 3 shell chiefly guarantees the structural integrity of Si-core during cyclings and synergizes with Bi nanodots to expediting Li+/e− transport kinetics. rGO mainly acts as the carrier to attaining the twofold goals of ameliorating the electronic conductivity and cushioning the stress from volume expansion. Therefore, the novel rGO-coated Si@SiO x @β-Bi 2 O 3 /Bi composite exhibits a high specific capacity of 1784 mAh g−1 at 1 A g−1 after 200 cycles and a good cycling stability of 1007 mAh g−1 at a high rate of 4 A g−1. [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 390
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 151800471
- Full Text :
- https://doi.org/10.1016/j.electacta.2021.138857