Unveiling hybrid Li/Na ions storage mechanism of Na3V2(PO4)3@C cathode for hybrid-ion battery with high-rate performance and ultralong cycle-life

Ge, Yilin; Zuo, Zonglin; Wang, Feng; Xu, Changhong; Yao, Qingrong; Liu, Peng; Wang, Dianhui; Luo, Wenbin; Deng, Jianqiu

doi:10.1016/j.cej.2023.143950

Chemical Engineering Journal

2023

DOI: 10.1016/j.cej.2023.143950

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Unveiling hybrid Li/Na ions storage mechanism of Na3V2(PO4)3@C cathode for hybrid-ion battery with high-rate performance and ultralong cycle-life

Yilin Ge,

Zonglin Zuo,

Feng Wang

et al.

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2024

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Cited by 11 publications

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Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Zhang,

Fu,

Qiu

et al. 2024

Advanced Science

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Covalent triazine frameworks (CTFs) are promising battery electrodes owing to their designable functional groups, tunable pore sizes, and exceptional stability. However, their practical use is limited because of the difficulty in establishing stable ion adsorption/desorption sites. In this study, a melt‐salt‐stripping process utilizing molten trichloro iron (FeCl3) is used to delaminate the layer‐stacked structure of fluorinated covalent triazine framework (FCTF) and generate iron‐based ion storage active sites. This process increases the interlayer spacing and uniformly deposits iron‐containing materials, enhancing electron and ion transport. The resultant melt‐FeCl3‐stripped FCTF (Fe@FCTF) shows excellent performance as a potassium ion battery with a high capacity of 447 mAh g−1 at 0.1 A g−1 and 257 mAh g−1 at 1.6 A g−1 and good cycling stability. Notably, molten‐salt stripping is also effective in improving the CTF's Na+ and Li+ storage properties. A stepwise reaction mechanism of K/Na/Li chelation with C═N functional groups is proposed and verified by in situ X‐ray diffraction testing (XRD), ex‐situ X‐ray photoelectron spectroscopy (XPS), and theoretical calculations, illustrating that pyrazines and iron coordination groups play the main roles in reacting with K+/Na+/Li+ cations. These results conclude that the Fe@FCTF is a suitable anode material for potassium‐ion batteries (PIBs), sodium‐ion batteries (SIBs), and lithium‐ion batteries (LIBs).

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Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Zhang,

Fu,

Qiu

et al. 2024

Advanced Science

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Unlocking Charge Transfer Limitation in NASICON Structured Na₃V₂(PO₄)₃ Cathode via Trace Carbon Incorporation

Huang,

Yan,

Zhang

et al. 2024

Advanced Energy Materials

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NASICON‐type cathode with remarkable ionic conductivity is perspective candidate for fast‐charging sodium‐ion battery. However, severely restricted by low electrical conductivity and poor interfacial kinetics, it usually delivers poor charge transfer kinetics. Different from traditional carbon compositing with high carbon contents, herein, a trace carbon incorporation tactic is proposed based on a typical NASICON‐structured Na3V2(PO4)3. First, particle‐growth process of Na3V2(PO4)3 is regulated via incorporating carbon dot, significantly reducing its particle size to shorten charge diffusion path. Second, electrical conductivity of Na3V2(PO4)3 is improved without sacrificing its high electrochemical activity due to the incorporated trace carbon content (0.76 wt.%). Third, Na3V2(PO4)3‐electrolyte interface structure is optimized by abundant functional groups from the incorporated carbon dot, enabling a thin and stable NaF‐rich CEI layer to boost interface kinetics. As a result, carbon dot endows Na3V2(PO4)3 with ultrastable cyclability up to 20 k cycles (capacity retention of 98.4%) and excellent rate capability (up to 200 C) in half cell, as well as high energy density (368.7 Wh kg−1) and fast charging property (≈110.2 s per charging with 250.8 Wh kg−1 input) in full cell. This study carves a new path for developing fast‐charging cathode, as is increasingly desired for present energy storage applications.

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Fast and stable lithium extraction enabled by less-defective graphene supported LiMn2O4 conductive networks in hybrid capacitive deionization

Zhang,

Huang,

Zhao

et al. 2024

Chemical Engineering Journal

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Unveiling hybrid Li/Na ions storage mechanism of Na3V2(PO4)3@C cathode for hybrid-ion battery with high-rate performance and ultralong cycle-life

Cited by 11 publications

References 68 publications

Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Unlocking Charge Transfer Limitation in NASICON Structured Na₃V₂(PO₄)₃ Cathode via Trace Carbon Incorporation

Fast and stable lithium extraction enabled by less-defective graphene supported LiMn2O4 conductive networks in hybrid capacitive deionization

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Unveiling hybrid Li/Na ions storage mechanism of Na3V2(PO4)3@C cathode for hybrid-ion battery with high-rate performance and ultralong cycle-life

Cited by 11 publications

References 68 publications

Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Construction of High‐Performance Anode of Potassium‐Ion Batteries by Stripping Covalent Triazine Frameworks with Molten Salt

Unlocking Charge Transfer Limitation in NASICON Structured Na3V2(PO4)3 Cathode via Trace Carbon Incorporation

Fast and stable lithium extraction enabled by less-defective graphene supported LiMn2O4 conductive networks in hybrid capacitive deionization

Contact Info

Product

Resources

About

Unlocking Charge Transfer Limitation in NASICON Structured Na₃V₂(PO₄)₃ Cathode via Trace Carbon Incorporation