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Concisely Constructing S, F Co-Modified MnO Nanoparticles Attached to S, N Co-Doped Carbon Skeleton as a High-Rate Performance Anode Material

Authors :
Dan Zhang
Chunyan Zhang
Zhe Huo
Jia Sun
Guangyin Liu
Xiaodi Liu
Chuang Yu
Source :
Molecules, Vol 29, Iss 18, p 4306 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

The utilization of MnO anodes with high storage capacity is significantly hindered by rapid capacity fading and inadequate rate capability, stemming from substantial volume fluctuations and low electrical conductivity. Crafting a composite comprising sulfur and fluorine co-modified MnO nanoparticles integrated with sulfur and nitrogen co-doped carbon matrices promises enhanced electrochemical performance yet poses formidable obstacles. Here, we present a straightforward synthetic strategy for in situ growth of sulfur and fluorine co-modified MnO nanoparticles onto sulfur and nitrogen co-doped carbon scaffolds. This integration effectively mitigates volume variations and enhances electrical conductivity. As a result, the SF-MnO/SNC composite demonstrates remarkable cycling stability and rate capability when employed as a lithium-ion battery anode. Remarkably, it achieves a high reversible capacity of 975 mAh g−¹ after 80 cycles at 0.1 A g−¹ and retains a substantial capacity of 498 mAh g−¹ even at a high rate of 2.0 A g−¹. The concise synthesis method and exceptional rate properties render the SF-MnO/SNC composite a promising anode material for lithium-ion batteries. The strategy of simultaneously doping oxides and carbon will bring new ideas to the research of oxide anodes.

Details

Language :
English
ISSN :
14203049
Volume :
29
Issue :
18
Database :
Directory of Open Access Journals
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
edsdoj.0ff0560ef8742e98b8db38d937719b6
Document Type :
article
Full Text :
https://doi.org/10.3390/molecules29184306