High-entropy V-based cathode for high-capacity and long-life aqueous zinc-ion battery

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110701 - 110701

Published: Jan. 1, 2025

Language: Английский

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Improving upon rechargeable battery technologies: On the role of high-entropy effects

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

An overview of high-entropy strategies for batteries is provided, emphasizing their unique structural/compositional attributes and positive effects on stability performance, alongside a discussion key challenges future research directions.

Language: Английский

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Synergistically Boosted Na⁺ Migration and Deep Desodiation Stability of NASICON Cathode via High Entropy Regulation

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Mn‐containing sodium superionic conductor (NASICON) compounds have shown considerable potential as cathode for sodium‐ion batteries (SIBs) owing to higher working voltage (V 5+ /V 4+ : 3.9 V), lower cost, and toxicity compared full vanadium‐based NASICON Na 3 V 2 (PO 4 ) . Taking 3.3 1.7 Mn 0.3 (NVMP) an example, its practical application is still restricted by poor electronic conductivity, sluggish intrinsic + diffusion, high‐voltage stability. In this work, a high entropy strategy proposed develop 1.613 (Cr, Fe, Co, Ni, Zr) 0.1 (HE‐NVMP) not only enabling more rapid migration but also significantly improving deep desodiation Based on theoretical calculations experimental findings, such modification can efficiently alter the coordination environments of both V/Mn sites reducing diffusion energy barrier, increasing occupancy at Na(2) sites, consolidating structure Thus, obtained HE‐NVMP delivers superior high‐rate capability (91.7 mAh g −1 up 50 C excellent cycling performance (capacity retention: 81.2%) after 10 000 cycles 20 cutoff 4.1 V. More importantly, exhibits storage properties (4.5 V) with electrochemical polarization 75% reduction 1 capacity retention 80.3% 2000 pristine counterpart, indicating great rechargeable overcharge resistance capability.

Language: Английский

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Polyanionic cathodes for sodium-ion batteries: Materials, working mechanism, and applications

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 165, P. 101008 - 101008

Published: May 2, 2025

Language: Английский

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A novel embedded KVO3/NC anode for high-performance lithium-ion batteries

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 676, P. 755 - 762

Published: July 21, 2024

Language: Английский

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High-Entropy and Na-Rich-Designed High-Energy-Density Na₃V₂(PO₄)₃/C Cathode

ACS Nano, Journal Year: 2024, Volume and Issue: 18(52), P. 35632 - 35643

Published: Dec. 19, 2024

The Na3V2(PO4)3 (NVP) cathode holds the merit of a stable 3D NASICON structure for ultrafast Na+ diffusion, yet it is still confronted with poor electronic conductivity (10–9 S cm–1) and insufficient energy density (∼370 W h kg–1). Herein, series high-entropy-doped Na3+xV1.76–xZnx(GaCrAlIn)0.06(PO4)3 (x = 0, 0.2, 0.35, 0.5) cathodes are systematically prepared an activated V5+⇌V4+ high-voltage plateau (4.0 V) elevated discharge capacity, which derived from charge compensation divalent Zn substituting trivalent V accompanied by extra input to create Na-rich phase. A range in situ/ex situ characterization studies DFT calculations radically verify conservation mechanism, enhanced bulk conductivity, robust structural stability. Accordingly, half-cells, optimized 0.35) capable giving much-improved capacity (126.8 mA g–1), reliable cycling stability (97.4%@5000 cycles@40 C), competitive (426.1 kg–1) at 2.0–4.3 V. Upon reducing cutoff voltage 1.4 V, three-electron reaction (V5+⇌V2+) entirely superior stability, delivering unparalleled 193.4 g–1 higher (544.3 Besides, displays high (126.1 g–1) (417.2 NVPZGCAI-35//hard carbon full-cells 1.6–4.1 Hence, this pioneering high-entropy strategy above rubies developing high-energy-density high-stability sodium-ion batteries.

Language: Английский

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Unsealing the multi-redox in Na3V2(PO4)3 cathode towards superb energy and power densities sodium-ion battery

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 623, P. 235396 - 235396

Published: Sept. 7, 2024

Language: Английский

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Beyond Lithium: Future Battery Technologies for Sustainable Energy Storage

Energies, Journal Year: 2024, Volume and Issue: 17(22), P. 5768 - 5768

Published: Nov. 18, 2024

Known for their high energy density, lithium-ion batteries have become ubiquitous in today’s technology landscape. However, they face critical challenges terms of safety, availability, and sustainability. With the increasing global demand energy, there is a growing need alternative, efficient, sustainable storage solutions. This driving research into non-lithium battery systems. paper presents comprehensive literature review on recent advancements technologies, specifically sodium-ion, potassium-ion, magnesium-ion, aluminium-ion, zinc-ion, calcium-ion batteries. By consulting peer-reviewed articles reviews, we examine key electrochemical properties underlying chemistry each system. Additionally, evaluate safety considerations, environmental sustainability, recyclability. The reviewed highlights promising potential to address limitations batteries, likely facilitate scalable solutions across diverse applications.

Language: Английский

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Achieving high capacity and ultra-stable sodium storage of Na2TiV(PO4)3 cathode by integrated lattice regulation and surface modification

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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