Nitrogen/phosphorus co-doped ultramicropores hard carbon spheres for rapid sodium storage

Nitrogen/phosphorus co-doped ultramicropores hard carbon spheres for rapid sodium storage

Hard carbon (HC) is a prospective energy storage anode material in sodium-ion batteries (SIBs). However, their unimpressive rate capability and poor initial Coulombic efficiency (ICE) have driven the requirements for superior capability HC anode materials. In our work, nitrogen (N)/phosphorus (P) co...

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Veröffentlicht in:Carbon (New York) 2024-01, Vol.218, p.118756, Article 118756
Hauptverfasser: Wu, Sheng, Peng, Handong, Xu, Junling, Huang, Le, Liu, Yongsi, Xu, Xiaocheng, Wu, Yanxue, Sun, Zhipeng
Format: Artikel
Sprache:eng
Schlagworte:
Adjustable nitrogen species
adsorption
anodes
batteries
carbon
electrochemistry
electrolytes
energy
energy density
Hard carbon
nitrogen
phosphorus
Phosphorus and nitrogen doping
sodium
Sodium-ion batteries
Ultramicropores
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Zusammenfassung:Hard carbon (HC) is a prospective energy storage anode material in sodium-ion batteries (SIBs). However, their unimpressive rate capability and poor initial Coulombic efficiency (ICE) have driven the requirements for superior capability HC anode materials. In our work, nitrogen (N)/phosphorus (P) co-doped ultramicropores (≈0.5 nm) hard carbon spheres (NPUCS) with the boosted pyridinic-N content are successfully prepared. The ultramicropores structure (
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2023.118756