Binder-free rice husk-based silicon-graphene composite as energy efficient Li-ion battery anodes
Journal
Journal of Materials Chemistry A
Journal Volume
2
Journal Issue
33
Pages
13437-13441
Date Issued
2014
Author(s)
Wong, D.P.
Suriyaprabha, R.
Yuvakumar, R.
Rajendran, V.
Hwang, B.-J.
Chen, Kuei-Hsien
Abstract
Rice husks, often neglected and considered as waste, contain constituents that could be of a potential use in advanced material applications. In this study, rice husks were used as a source of silicon dioxide for the synthesis of silicon nanoparticles (Si NPs) through magnesiothermic reduction process. The Si NPs were further used to prepare a binder-free composite system comprising Si NPs and graphene as an anode material for lithium ion battery system (LiBs). The composite system fabricated from rice husk-based Si NPs (RH-Si NPs) yielded an initial capacity of 1000 mA h g-1 at high applied current density of 1000 mA g-1. This study opens up the use of waste materials such as rice husk as a sustainable source of key components in advanced technology applications. This journal is © the Partner Organisations 2014.
SDGs
Other Subjects
Anodes; Binders; Energy efficiency; Graphene; Silicon; Advanced materials; Advanced technology; Anode material for lithium ion batteries; Applied current; Energy efficient; Li-ion batteries; Magnesiothermic reduction; Silicon nanoparticles; Lithium batteries
Publisher
Royal Society of Chemistry
Type
journal article