A highly pyrrolic-N doped carbon modified SiOx anode for superior lithium storage

The poor interfacial stability and undesirable cycling performance caused by their dramatic volume change hinder the large-scale commercial application of SiOx materials for high-energy-density lithium-ion batteries. Herein, a simple two-step carbonization process is employed to prepare highly pyrro...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2024-09, Vol.53 (36), p.15158-15163
Main Authors: Ziqiao Yan, Huang, Xiuhuan, Wei, Xiujuan, Xu, Manyuan, Huang, Jinqiu, Wu, Shuxing, Kai-Hang Ye, Lin, Zhan
Format: Article
Language:English
Subjects:
Anodes
Carbon
Cycles
Electrode materials
Electron conductivity
Lithium-ion batteries
Stability
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Summary:The poor interfacial stability and undesirable cycling performance caused by their dramatic volume change hinder the large-scale commercial application of SiOx materials for high-energy-density lithium-ion batteries. Herein, a simple two-step carbonization process is employed to prepare highly pyrrolic-nitrogen-doped carbon modified SiOx anode materials (SiOx@NC). The designed SiOx@NC materials exhibit high electron conductivity and favorable electrochemical kinetics. As expected, the SiOx@NC electrode delivers a high specific capacity of 1003.46 mA h g−1 after 200 cycles at 500 mA g−1. The NCM622||SiOx@NC full cell also demonstrates excellent cycling stability and rate performance.
ISSN:1477-9226
1477-9234
1477-9234
DOI:10.1039/d4dt02247e