In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes

Ha Tran Huu, Ngoc Phi Nguyen, Vuong Hoang Ngo, Huy Hoang Luc, Minh Kha Le, Minh Thu Nguyen, My Loan Phung Le, Hye Rim Kim, In Young Kim, Sung Jin Kim, Van Man Tran, Vien Vo

Research output: Contribution to journalArticlepeer-review

Abstract

Metallothermic, especially magnesiothermic, solid-state reactions have been widely applied to synthesize various materials. However, further investigations regarding the use of this method for composite syntheses are needed because of the high reactivity of magnesium. Herein, we report an in situ magnesiothermic reduction to synthesize a composite of Ge@C as an anode material for lithium-ion batteries. The obtained electrode delivered a specific capacity of 454.2 mAh·g−1 after 200 cycles at a specific current of 1000 mA·g−1. The stable electrochemical performance and good rate performance of the electrode (432.3 mAh·g−1 at a specific current of 5000 mA·g−1) are attributed to the enhancement in distribution and chemical contact between Ge nanoparticles and the biomass-based carbon matrix. A comparison with other synthesis routes has been conducted to demonstrate the effectiveness of contact formation during in situ synthesis.

Original languageEnglish
Pages (from-to)751-761
Number of pages11
JournalBeilstein Journal of Nanotechnology
Volume14
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Tran Huu et al.; licensee Beilstein-Institut. License and terms: see end of document.

Keywords

  • Ge anode
  • in situ synthesis
  • lithium-ion batteries
  • magnesiothermic reduction

Fingerprint

Dive into the research topics of 'In situ magnesiothermic reduction synthesis of a Ge@C composite for high-performance lithium-ion batterie anodes'. Together they form a unique fingerprint.

Cite this