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Boosting ion diffusion at Ni2P@3D nanostructure carbon network interface for superior and durable sodium-ion hybrid capacitor by Jihyun Park; Song Yeul Lee; Joon Young Kim; Subramani Surendran; Dong-Kyu Lee; Yong Il Park; Uk Sim is a Engineering article available to read on EtoBox.
What is Boosting ion diffusion at Ni2P@3D nanostructure carbon network interface for superior and durable sodium-ion hybrid capacitor about?
Sodium-ion hybrid capacitors (SIHCs) are a promising next-generation energy storage device because of their high energy and power density, long lifespan, and natural abundance of sodium. Ni 2 P is an appealing anode material for battery-type electrodes because of its high theoretical capacity (542 mAh g -1 ). This study proposes encapsulating Ni 2 P with carbon nanofibers (Ni 2 P@CNF) using a simple electrospinning method to produce an anode material suitable for high-performance SIHCs. The three-dimensional (3D) network of CNF interconnections delivers improved electrical conductivity and ion diffusivity. The CNF can efficiently reduce the stress repeatedly inflicted on the Ni 2 P because of the volume change, leading to superior stability. In the half cell, the Ni 2 P@CNF reveals a high specific capacity of 184 mAh g -1 than Ni 2 P (40 mAh g -1 ) and Ni 2 P/CNF (92 mAh g -1 ) at a current density of 0.1 A g -1 . The Ni 2 P@CNF possesses a high-rate capability of 81 mAh g -1 at a current density of 2 A g -1 . Furthermore, the ion diffusivity and electrochemical properties were investigated using electrochemical impedance spectroscopy. By integrating the Ni 2 P@CNF anode with an ac
Who reads Boosting ion diffusion at Ni2P@3D nanostructure carbon network interface for superior and durable sodium-ion hybrid capacitor?
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- Author
- Jihyun Park; Song Yeul Lee; Joon Young Kim; Subramani Surendran; Dong-Kyu Lee; Yong Il Park; Uk Sim
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)