Rearrangement of H-bonds network of solvation structure via a zincophilic polyol-type surfactant to stabilize zinc anode in aqueous zinc-ion batteries

Energy storage materials, Год журнала: 2024, Номер 67, С. 103238 - 103238

Опубликована: Фев. 5, 2024

Язык: Английский

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The Burgeoning Zinc Powder Anode for Aqueous Zinc Metal Batteries: from Electrode Preparation to Performance Enhancement

Advanced Energy Materials, Год журнала: 2024, Номер 14(32)

Опубликована: Июнь 5, 2024

Abstract Aqueous zinc metal batteries (AZMBs) have emerged as a focal point of interest in academic research and industrial strategic planning. Zinc powder (ZP) is poised to assume prominent position both future practical applications due its high Zn utilization rate processability. However, critical challenges need be addressed before realizing substantial progress. Notably, severe voltage polarization gas production ZP electrodes stand out the primary causes battery failure, differing with foil where short circuits caused by dendrites contribute failure. While numerous comprehensive reviews offered effective strategies for foil, systematic summary still lacking. For ZP, electrode preparation dictates performance. This review summarizes criteria optimal electrodes, covering components, methods, technique parameters. It emphatically introduces underlying water‐related side reactions briefly analyzes stripping/plating behaviors electrodes. The status quo ZP‐based then discussed categories current collector, conductive scaffold, binder, electrolytes. Finally, potential avenues are proposed from three aspects enhance focus on facilitate application AZMBs.

Язык: Английский

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Regulating Preferred Crystal Plane with Modification of Exposed Grain Boundary Toward Stable Zn Anode

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 26, 2024

Abstract Aqueous Zn metal batteries (ZMBs) are largely hampered by the poor stability of zinc (Zn) anode in aqueous electrolyte due to uncontrollable deposition behavior and parasitic reactions. Hence, a stable Glu@Zn via acid etching is developed that simultaneously exposes (002) plane modifies exposed grain boundaries. The surface‐preferred achieved minimizing its surface energy. And boundaries also modified decomposition products etching, which can greatly reduce adverse effects caused highly active These features favor accrediting long‐term cycle lifespan exceeding 4400 h with high average coulombic efficiency (CE) 98.9%. Surprisingly, run for more than 250 50% utilization. assembled Glu@Zn//NH 4 V O 10 full deliver specific capacity 291.6 mAh g −1 after 400 cycles even at low current density 0.5 A . It obtain cycling performance up 2000 cycles. To further verify stability, pouch cell constructed preserve 5 mAh. This study sheds light on energy regulation exposing preferred crystal develop reversible ZMBs.

Язык: Английский

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Built‐In Trimodal Molecular Interaction Effect Enables Interface‐Compatible and Temperature‐Tolerance Aqueous Zinc Batteries

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 8, 2024

Abstract Aqueous zinc‐ion batteries compatible with a wide temperature range and long cycle lifespan show great application prospects but are greatly limited by the unstable electrode‐electrolyte interfaces mismatched electrolytes. This report presents pathway of succinamic acid (SA) additive‐induced built‐in trimodal molecular interaction for constructing sustainable aqueous zinc batteries. As confirmed, such falls into following patterns: binding state H─F bond between SA polyvinylidene fluoride (PVDF) binder, micellar aggregation in electrolyte, spontaneous adsorption at Zn anode–electrolyte interface. Benefiting from above synergistic effect, electrode shows highly reversible deposition/stripping behavior over (−10–50 °C) when paired optimized electrolyte. Specially, an impressive 3530 h‐cycle symmetrical cell is achieved conditions 1 mA cm −2 mAh . Beyond that, significantly improved storage capability performance demonstrated both Zn‐MnO 2 Zn‐I Given good balance working range, ionic conductivity, 2+ transfer number this trace molecule‐mediated design paradigm provides new insights developing advanced batteries, including not to zinc‐based systems.

Язык: Английский

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The zinc ion concentration dynamically regulated by an ionophore in the outer Helmholtz layer for stable Zn anode

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 675, С. 639 - 645

Опубликована: Июль 6, 2024

Язык: Английский

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