Enhancement of De‐Solvation Kinetics on V5O12•6H2O Cathode Through a Bi‐Functional Modification Layer for Low‐Temperature Zinc‐Ion Batteries DOI Open Access

Xiaodi Jiang,

Tongde Wang,

Mingze Ji

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Abstract Zinc‐ion batteries (ZIBs) show great promise for next‐generation energy storage, but their performance at low temperatures is severely hindered by sluggish desolvation kinetics cathode‐electrolyte interface. To address this limitation, a zincophilic‐hydrophobic poly(3,4‐ethylenedioxythiophene) (PEDOT) modified layer proposed on V 5 O 12 •6H 2 cathode. Ab initio molecular dynamics simulations indicate that modification strategy promotes Zn ⁺ adsorption and reduces the free dissociating hydrated 2+ to form interface, across temperature of 280 240 K. As result, PEDOT‐modified cathode exhibits significantly improved diffusion kinetics, delivering superior rate with remarkable capacity 226.5 mAh g⁻¹ 40 A g⁻¹. Notably, even −30 °C, maintains high 268.3 mA 0.2 robust retention (92.4%) over 1,000 cycles 1 This approach markedly improves low‐temperature operational efficiency, highlighting potential interface engineering advance zinc‐ion in cold environments.

Language: Английский

Elimination of Concentration Polarization Under Ultra‐High Current Density Zinc Deposition by Nanofluid Self‐Driven Ion Enrichment DOI Open Access

Na Gao,

Manying Cui,

Kai Xi

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract The commercialization of zinc metal batteries aims at high‐rate capability and lightweight, which requires anodes working high current density, areal capacity, depth discharge. However, frequent anode fades drastically under extreme conditions. Herein, it is revealed that the primary reason for instability severe concentration polarization caused by imbalanced consumption rate transfer Zn 2+ Based on this finding, a nanofluid layer constructed to rapidly absorb mitigate induced nonlinear transport interfacial ions. modified sustains conditions over 1573 h (40 mA cm −2 , 40 mAh DOD = 75.97%) 490 (100 100 90.91%), achieving an unprecedented cumulative capacity 62.92 Ah . This work offers both fundamental practical insights interface design in energy storage devices.

Language: Английский

Citations

2
Zinc‐Seeded PEDOT:PSS Aerogel Host as Highly Reversible Dendrite‐Free Zinc Metal Anode DOI

Zhanrui Zhang,

Yao Wang, Jie Sun

et al.

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

Published: Feb. 26, 2025

Abstract The parasitic reactions and rampant dendrite growth on the Zn anode side pose significant obstacles to future applications of aqueous zinc ion batteries. Herein, a lightweight host is reported by introducing nanosized metallic into poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) (P‐S) aerogel (Zn/P‐S). ‒SO 3 H groups interact with 2+ guild their migrations along PSS chains, while offer additional nucleation sites homogenize electrical concentration. Owing these synergistic effects, uniform dense deposition (002) plane aligned parallel P‐S substrate achieved, even at high plating capacity 20 mAh cm −2 . Moreover, deposited over Zn/P‐S (Zn@Zn/P‐S) exhibits highly reversible plating/stripping behavior Coulombic efficiency maintained 99% 700 cycles. Consequently, Zn@Zn/P‐S‐based symmetric Zn||Zn cell can work stably 500 h 0.5 ‒2 100 4 depth discharge 40%. A Zn@Zn/P‐S||NaV O 8 full battery presents rate capability 82.2% retention after 1000 cycles 2 g ‒1 This strategy provides novel approach for designing polymer‐based anodes corrosion‐resistant dendrite‐free striping/plating behaviors.

Language: Английский

Citations

0
Altering the Zn2+ Migration Mechanism Enables the Composite Hydrogel Electrolytes with High Zn2+ Conduction and Superior Anti‐Dehydration DOI Open Access

Qingqing Zheng,

Liyang Liu,

Zewei Hu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Hydrogel electrolytes are favored for flexible zinc‐ion batteries (FZIBs) due to their biocompatibility. Their application progress, however, is severely restricted by the poor water retention and low Zn 2+ transference number (t ). Herein, one composite polymer electrolyte (CPE) prepared introducing Prussian blues (PBs) as multifunctional fillers in polyvinyl alcohol (PVA) matrix enhance t . Experimental theoretical characterizations confirm that PB filler can alter migration mechanism trap of CPE. PBs active provide extra zinc ions unique 3D ion diffusion channels. Moreover, metal centers framework function Lewis acid sites have good affinity with anions salt, facilitating dissociation salt. Additionally, absorb coordination water, enhancing anti‐dehydration capability ionic conductivity hydrogel electrolytes. Consequently, P‐15/Zn‐15 shows high 16.3 mS cm⁻ 1 0.63. The Zn||Zn symmetric cells stably operate 600 h at 50 °C. Zn||P‐15/Zn‐15|| NaV 3 O 8 ·1.5H 2 full cell exhibits excellent cycling performance cycles.

Language: Английский

Citations

0
Sulfhydryl and Sulfonic Acid Bifunctional Group Achieving (101) Crystal Preferential Reversible Zn2+ Electrodeposition Without Dendrite and Nucleation Overpotential DOI

Kaixi Yan,

Yani Guo, Anuj Kumar

et al.

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

Published: April 14, 2025

Abstract Disordered electrodeposition of Zn 2+ resulted in serious dendrite and hydrogen evolution reactions, greatly decreasing the energy efficiency durability aqueous zinc ion batteries (AZIBs). Herein, sodium 2‐mercaptoethanesulfonate (MSN) is proposed as a new additive to achieve induced directional on (101) crystal surface form dense uniform metal layer via cooperative effect sulfhydryl sulfonic acid groups. Different from reported additives, MSN molecules promote rapid formation adsorption layer, which accelerates its directed migration rate orderly nucleation process, achieving eliminated dendrites overpotential, far superior additives. The MSN‐introduced Zn||Zn symmetric battery displays amazing stably cycled for more than 3500 h at 2 mA cm −2 @ mAh , over 1 000 even under harsh conditions (5 5 ). Furthermore, Zn||δ‐MnO coin offers high capacity 201.5 g −1 low recession 1% during 800 cycles A higher that blank sample (121.3 56.1%), respectively, fully demonstrating extraordinary advantages contributions molecules.

Language: Английский

Citations

0
Recent Advances in Polymer Interlayers for Zinc Metal Anode Protection‐A Mini‐Review DOI Creative Commons

Yamei Luo,

Lanya Zhao,

Dandan Yin

et al.

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

Published: April 29, 2025

Abstract Zn metal anode faces numerous challenges that severely limit its practical application. Polymer interlayer is one of the mostly used strategies to enhance performance. The chemical structure, physical properties, as well morphology these polymer interlayers significantly influenced on effectiveness zinc protection. Considering complexity and their composite materials in this field, it highly needed summarize current progresses anodes. This paper reviews recent advances design stabilize from different perspectives, including hydrogel interlayer, porous conductive interlayers. Finally, review outlines possible future developments field towards commercialization anode.

Language: Английский

Citations

0
Multifunctional zinc-nickel alloy enabling high-performance aqueous zinc ion batteries DOI
Xinyan Zhu, Weisong Zhang, Miaomiao Zhang

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1005, P. 176159 - 176159

Published: Aug. 25, 2024

Language: Английский

Citations

2
Selective Recycling of Spent Lithium‐Ion Batteries Enables Toward Aqueous Zn‐Ion Batteries Cathode DOI

Xiao Lv,

Jiao Lin, Xiaodong Zhang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract Effective selective recycling of spent lithium‐ion batteries (S‐LIBs) and giving recycled products a “second life” are crucial for advancing energy supply circularity, environmental economic sustainability development. However, separating metal compounds with similar charge differences requires substantial energy, water, chemical inputs. Herein, an innovative strategy is present S‐LIBs by photoexcitation inspired the Hard Soft Acid Base (HSAB) principle. Theoretical calculations experimental results show that drives transfer modulates subtle density among components, thereby enhancing their solubility disparity facilitating separation. Remarkably, photoexcitation‐induced separation factor reaches 46900 recovery efficiency approaches 100%, representing significant improvement over non‐photoexcitation merely 2.7. Through techno‐economic analysis, viability technology has been confirmed as eco‐friendly economical approach battery recycling. Furthermore, high‐value reuse recovered Mn components implemented. The Recycled treated calcination to obtain porous, defect‐rich 2 O 3 , which showed specific capacity 613 mAh g −1 at 0.1 A ) in aqueous Zn‐ion (AZIBs). This work provides fresh insight into moving toward more sustainable storage technologies.

Language: Английский

Citations

2
Enhancement of De‐Solvation Kinetics on V5O12•6H2O Cathode Through a Bi‐Functional Modification Layer for Low‐Temperature Zinc‐Ion Batteries DOI Open Access

Xiaodi Jiang,

Tongde Wang,

Mingze Ji

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Abstract Zinc‐ion batteries (ZIBs) show great promise for next‐generation energy storage, but their performance at low temperatures is severely hindered by sluggish desolvation kinetics cathode‐electrolyte interface. To address this limitation, a zincophilic‐hydrophobic poly(3,4‐ethylenedioxythiophene) (PEDOT) modified layer proposed on V 5 O 12 •6H 2 cathode. Ab initio molecular dynamics simulations indicate that modification strategy promotes Zn ⁺ adsorption and reduces the free dissociating hydrated 2+ to form interface, across temperature of 280 240 K. As result, PEDOT‐modified cathode exhibits significantly improved diffusion kinetics, delivering superior rate with remarkable capacity 226.5 mAh g⁻¹ 40 A g⁻¹. Notably, even −30 °C, maintains high 268.3 mA 0.2 robust retention (92.4%) over 1,000 cycles 1 This approach markedly improves low‐temperature operational efficiency, highlighting potential interface engineering advance zinc‐ion in cold environments.

Language: Английский

Citations

2