What question did this study set out to answer?

To assess the structural and electrochemical properties of NASICON-type cathodes for sodium-ion batteries, focusing on NVPF and NVOPF materials.

June 4, 2026Nano-Micro LettersOpen Access

Anion Chemistry: Structure, Electrochemistry and Stability of NASICON Cathodes

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Authors

TCTingting CaiBeihua University DYDongxu YuQuzhou University XZXueyan ZhangQuzhou University

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Implication

Review compares NVPF and NVOPF cathodes to evaluate their stability and performance in sodium-ion batteries, indicating design guidelines for future materials.

Key Points

To assess the structural and electrochemical properties of NASICON-type cathodes for sodium-ion batteries, focusing on NVPF and NVOPF materials.
Critical comparison of two vanadium-based fluorophosphate cathodes: Na3V2(PO4)2F3 (NVPF) and Na3V2O2(PO4)2F (NVOPF).
Evaluation of their crystal structures, sodium storage mechanisms, and interfacial stabilities under high-voltage operation.
Discussion of anion chemistry modulation strategies to enhance performance.
NVPF exhibits a higher redox potential with V3+/V4+ couple compared to NVOPF, which shows enhanced electronic conductivity due to partial F− to O2− substitution.
Both cathodes show distinct sodium storage behaviors and degradation characteristics when subjected to high-voltage operation.
Insights into structural chemistry's impact on electrochemical performance and interfacial stability are presented.

Cite This Study

Cai et al. (2026) studied this question.

synapsesocial.com/papers/6a211743d499ed480b17022b https://doi.org/10.1007/s40820-026-02241-5

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Implication

Review compares NVPF and NVOPF cathodes to evaluate their stability and performance in sodium-ion batteries, indicating design guidelines for future materials.

Anion Chemistry: Structure, Electrochemistry and Stability of NASICON Cathodes

Discussion

Member takes

Implication

Key Points

Cite This Study

Anion Chemistry: Structure, Electrochemistry and Stability of NASICON Cathodes

Discussion

Member takes

Implication

Key Points

Cite This Study

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