What does this research mean for the field?

A hierarchical Zn-doped V2O5/NH4V4O10 heterojunction cathode accelerates Zn2+ migration and restrains Jahn-Teller distortion, delivering a high specific capacity of 523.8 mA h g−1 and 72.4% capacity retention over 3000 cycles in aqueous zinc-ion batteries. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Develop self-supporting hierarchical Zn-doped V2O5/NH4V4O10 heterojunctions on carbon cloth to overcome sluggish ion diffusion and structural degradation in aqueous zinc-ion battery cathodes.

September 14, 2026Journal of Energy StorageOpen Access

Self-supporting graded Zn-doped V2O5/NH4V4O10 heterojunctions enable ultrafast and ultra-stable aqueous zinc-ion energy storage

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Authors

XJXiao JingSouthwest University of Science and Technology JWJiaheng WangSouthwest University of Science and Technology WWWei WangSouthwest University of Science and Technology

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Implication

Experimental study demonstrates ultrafast zinc-ion storage using graded vanadium heterojunction cathodes, indicating a promising interfacial design for stable aqueous batteries.

Key Points

Develop self-supporting hierarchical Zn-doped V2O5/NH4V4O10 heterojunctions on carbon cloth to overcome sluggish ion diffusion and structural degradation in aqueous zinc-ion battery cathodes.
Grew hierarchical Zn-doped V2O5/NH4V4O10 heterojunctions in situ onto carbon cloth using a two-step hydrothermal synthesis.
Evaluated electrochemical charge-discharge kinetics, rate performance, and cycling longevity across varying current densities.
Delivered a high specific capacity of 523.8 mA h g−1 and retained 171.4 mA h g−1 at a high current density of 5 A g−1.
Maintained 72.4% capacity retention over 3000 cycles at 3 A g−1, exhibiting 96.37% capacity recovery following current changes.
Restrained Jahn-Teller distortion, mitigating lattice degradation and accelerating Zn2+ transport kinetics.

Cite This Study

Jing et al. (2026) studied this question.

synapsesocial.com/papers/6aa7b3d00926e14a848b30ea https://doi.org/10.1016/j.est.2026.124684

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Implication

Experimental study demonstrates ultrafast zinc-ion storage using graded vanadium heterojunction cathodes, indicating a promising interfacial design for stable aqueous batteries.

Self-supporting graded Zn-doped V2O5/NH4V4O10 heterojunctions enable ultrafast and ultra-stable aqueous zinc-ion energy storage

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Implication

Key Points

Cite This Study

Self-supporting graded Zn-doped V2O5/NH4V4O10 heterojunctions enable ultrafast and ultra-stable aqueous zinc-ion energy storage

Discussion

Member takes

Implication

Key Points

Cite This Study

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