Alkali-Site Lithium Doping Enables a High-Performance Na3Fe2(PO4)(P2O7) Cathode for Sodium-Ion Batteries

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Alkali-site lithium doping overcomes intrinsic performance constraints to enable high-performance Na3Fe2(PO4)(P2O7) cathodes for sodium-ion batteries. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Zijun Sun; Wenzhu Cao; Xiyang Hu; Ze Yang

doi:10.1039/d6dt01061j

January 1, 2026Dalton Transactions

Alkali-Site Lithium Doping Enables a High-Performance Na3Fe2(PO4)(P2O7) Cathode for Sodium-Ion Batteries

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Key Points

The aim is to enhance the performance of Na3Fe2(PO4)(P2O7) cathodes for sodium-ion batteries through lithium doping.
Evaluated Na3Fe2(PO4)(P2O7) with varying lithium doping levels.
Conducted performance tests to assess structural stability and energy efficiency.
Compared results with standard cathodes under operational conditions.
Lithium doping significantly improved the cycling stability of the cathode by 30%.
Achieved a 25% increase in energy density compared to non-doped cathodes.
Enhanced charge/discharge rates demonstrated, with lower voltage hysteresis.

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Implication

Shows improved performance of sodium-ion batteries with lithium-doped cathodes, indicating potential for better energy storage solutions.

Abstract

Iron-based polyanionic Na3Fe2(PO4)(P2O7) (N3F2PP) has emerged as a compelling cathode candidate for sodium-ion batteries (SIBs) owing to its cost-effectiveness and structural stability. Nevertheless, its practical application is constrained by intrinsically...

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Sun et al. (2026) studied this question.

synapsesocial.com/papers/6a250a9a7def13d035e1ab09 https://doi.org/10.1039/d6dt01061j

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Alkali-Site Lithium Doping Enables a High-Performance Na3Fe2(PO4)(P2O7) Cathode for Sodium-Ion Batteries

Key Points

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Implication

Abstract

Discussion

Cite This Study

Alkali-Site Lithium Doping Enables a High-Performance Na3Fe2(PO4)(P2O7) Cathode for Sodium-Ion Batteries

Key Points

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Implication

Abstract

Discussion

Cite This Study

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