1. A highly pyrrolic-N doped carbon modified SiOx anode for superior lithium storage.
- Author
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Yan, Ziqiao, Huang, Xiuhuan, Wei, Xiujuan, Xu, Manyuan, Huang, Jinqiu, Wu, Shuxing, Ye, Kai-Hang, and Lin, Zhan
- Subjects
- *
DOPING agents (Chemistry) , *LITHIUM-ion batteries , *CARBONIZATION , *ANODES , *ELECTRODES - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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