Facile mechanochemical synthesis of non-stoichiometric silica-carbon composite for enhanced lithium storage properties

Authors: Zhang, B., Wang, H., Liu, C., Li, D., Kim, H.K., Harris, C., Lao, C.Y., Abdelkader, A., Xi, K.

Journal: Journal of Alloys and Compounds

Publication Date: 15/09/2019

Volume: 801

Pages: 658-665

ISSN: 0925-8388

DOI: 10.1016/j.jallcom.2019.06.101

Abstract:

A large number of new electrode materials and novel structural designs are emerging for lithium-ion batteries, yet scalable synthesis and raw material costs still hinder the practical application of such materials. Here, we designed and fabricated a low-cost SiOx/C composite by a facile and scalable mechanofusion route with a ball-milling method. We selected aerosil and graphite precursor-needle coke, which are two widely used materials in industry, as a silicon source and carbon source, respectively. This SiOx/C composite shows a high reversible capacity (ca. 550 mAh g⁻¹) at the 180th cycle and good rate performance. Our scalable synthesis route of electrode materials can stimulate the progress of other energy storage technologies for practical applications.

https://eprints.bournemouth.ac.uk/32482/

Source: Scopus