Issue 1, 2023

Facile synthesis of Si/Ge/graphite@C composite with improved tap density and electrochemical performance

Abstract

Nanoengineering is one of the most effective methods to promote the lithium storage performance of silicon material, which suffers from huge volume changes and poor reaction kinetics during cycling. However, the commercial application of nanostructured silicon is hindered by its high manufacturing cost and low tap density. Herein, a Si/Ge/graphite@C composite was successfully synthesized by ball-milling with subsequent calcination. By introducing Ge, graphite and an amorphous carbon coating, both tap density and electrochemical performance are improved significantly. Benefiting from the synergetic effects of the above components, the Si/Ge/graphite@C composite delivers a reversibility capacity of 474 mA h g−1 at 0.2 A g−1 and stable capacity retention.

Graphical abstract: Facile synthesis of Si/Ge/graphite@C composite with improved tap density and electrochemical performance

Supplementary files

Article information

Article type
Paper
Submitted
07 Oct 2022
Accepted
05 Dec 2022
First published
21 Dec 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 440-447

Facile synthesis of Si/Ge/graphite@C composite with improved tap density and electrochemical performance

L. Chang, Y. Lin, K. Wang, R. Yan, W. Chen, Z. Zhao, Y. Yang, G. Huang, W. Chen, J. Huang and Y. Song, RSC Adv., 2023, 13, 440 DOI: 10.1039/D2RA06311E

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements