Active Component Design of Amorphous SnPx/SnSx and Interfacial Bonding Engineering in N/P/S‐Doped Hard Carbon for High‐Rate Sodium‐Ion Hybrid Capacitors DOI Creative Commons
Ziyang Jia,

Yichen Duan,

Xi Chen

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract Sodium‐ion hybrid capacitors （SIC）face critical challenges from the kinetic mismatch and cycling life imbalance between battery‐type anodes capacitive cathodes. A slope‐dominant N/P/S‐doped hard carbon anode (Sn0.1@NSPC) with nearly plateau‐free sloping charge–discharge curves, embedded amorphous SnP x /SnS composites, is developed. This unique design delivers a high reversible capacity of 412.8 mAh g⁻¹ at 0.05 while retaining 180.7 10 g⁻¹, coupled 90% retention over 000 cycles. The enables isotropic Na⁺ diffusion volume expansion suppression, interfacial Sn─P/Sn─S bonding activates redox potential P/S for sodium storage through Na₃P/Na₂S formation. Density functional theory calculations demonstrate that Sn doping enhances electronic states near Fermi level reduces sodium‐ion barriers, improving conductivity ion transport. Pseudocapacitive‐dominated kinetics reduced charge transfer resistance are achieved, synergizing alloying/conversion reactions. In SIC paired activated carbon, system exhibits an energy density 360 Wh kg⁻¹ (anode‐mass‐based), power 38 kW kg⁻¹, 91% after 3000 work establishes universal heterostructure via engineering coupling, addressing trade‐offs capacity, rapid kinetics, long‐term stability in advanced SIC.

Язык: Английский

Carbon Cloth-Supported NiSe2/ZnSe Heterojunction Nanosheet Arrays as Anode Materials for Enhanced Sodium-Ion Storage DOI

Haochun Jiang,

Yuxin Hou,

Li Sun

и другие.

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 24, 2025

Язык: Английский

Процитировано

0
Active Component Design of Amorphous SnPx/SnSx and Interfacial Bonding Engineering in N/P/S‐Doped Hard Carbon for High‐Rate Sodium‐Ion Hybrid Capacitors DOI Creative Commons
Ziyang Jia,

Yichen Duan,

Xi Chen

и другие.

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Май 28, 2025

Abstract Sodium‐ion hybrid capacitors （SIC）face critical challenges from the kinetic mismatch and cycling life imbalance between battery‐type anodes capacitive cathodes. A slope‐dominant N/P/S‐doped hard carbon anode (Sn0.1@NSPC) with nearly plateau‐free sloping charge–discharge curves, embedded amorphous SnP x /SnS composites, is developed. This unique design delivers a high reversible capacity of 412.8 mAh g⁻¹ at 0.05 while retaining 180.7 10 g⁻¹, coupled 90% retention over 000 cycles. The enables isotropic Na⁺ diffusion volume expansion suppression, interfacial Sn─P/Sn─S bonding activates redox potential P/S for sodium storage through Na₃P/Na₂S formation. Density functional theory calculations demonstrate that Sn doping enhances electronic states near Fermi level reduces sodium‐ion barriers, improving conductivity ion transport. Pseudocapacitive‐dominated kinetics reduced charge transfer resistance are achieved, synergizing alloying/conversion reactions. In SIC paired activated carbon, system exhibits an energy density 360 Wh kg⁻¹ (anode‐mass‐based), power 38 kW kg⁻¹, 91% after 3000 work establishes universal heterostructure via engineering coupling, addressing trade‐offs capacity, rapid kinetics, long‐term stability in advanced SIC.

Язык: Английский

Процитировано

0