Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103909 - 103909
Published: Nov. 1, 2024
Language: Английский
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: April 24, 2025
The development of Zn metal batteries is hindered by dendrites, notorious side reactions, and performance decay in harsh temperatures. Despite the efficacy strongly coordinating organic solvents addressing these issues, challenges persist regarding low ionic conductivity, high viscosity, desolvation barrier, particularly at Additionally, around Zn2+ diminish anions participating first solvation shell, leading to formation an organic-rich interphase. To achieve balanced physicochemical properties, electrolyte system combining chaotropic Zn(ClO4)2 salts with weakly (MeOH) highly (Zn(OAc)2) proposed. Experimental simulation results reveal that this creates anion-rich shell barriers, inhibiting water decomposition promoting inorganic-organic-rich solid OAc- also assists dense vertical zinc deposition along (101) crystal plane. reconstructed weak hydrogen bonds between MeOH H2O break ordered structure temperatures, enabling a higher conductivity. Consequently, battery employing designed yields superior electrochemical across wide temperature range (-80 °C-40 °C). proposed strategy facilitates design for wide-temperature fast reaction kinetics.
Language: Английский
Citations
0
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 30, 2025
Abstract While planar Zn deposition is extensively explored for dendrite suppression, the critical stripping process governing morphology evolution remains underexplored. An interfacial ion/electron redistribution strategy proposed that establishes bidirectional regulation of plating/stripping dynamics through rationally designed Cu microsquare‐patterned electrodes. The heterogeneous microsquare makes redistributed, and random dendritic growth restricted to certain regions no longer characterized by sustained growth. This engineering synergistically enhances ionic transfer in topographically guided bare gaps while simultaneously activating preferential dissolution surface energy‐mediated overpotential elevation. coordinated dual mechanism spatially confines reactions within designated zones, achieving spontaneous eradication. In contrast previous works concentrating on artificial layers or patterned designs, this work not only highlights importance adjusting ion electron distribution but also emphasizes significance confined electrode design, elimination. Consequently, modified enables symmetric Zn//Zn cells achieve over 2000 h cycling stability at 0.25 mA cm −2 . Furthermore, anode Zn//MnO 2 show a ≈80% improvement specific capacity after 1800 cycles 1.0 A g −1 compared anodes.
Language: Английский
Citations
0
Journal of Power Sources, Journal Year: 2025, Volume and Issue: 645, P. 237175 - 237175
Published: April 26, 2025
Language: Английский
Citations
0
Published: Dec. 1, 2024
Language: Английский
Citations
2
Small Structures, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 23, 2024
Dendrite growth and detrimental parasitic side reactions at the anode–electrolyte interface severely restrain reversibility cyclability of aqueous zinc‐ion batteries. Due to lowest surface energy in Zn metal with a hexagonal close‐packed structure, (002) facet can effectively alleviate these effects. In contrast several existing works on texturization, single‐crystalline successfully grown using Bridgman method this work offers fundamental understanding issue. The perfect atomic arrangement low‐surface‐energy cleavage planes, without any grain boundaries, not only kinetically enables an epitaxial deposition inhibiting dendrite formation but also thermodynamically endows most stable state restraining reactions. As result, Zn(002) anode demonstrates cycling stability over 4800 h (6.7 month) 2 mA cm −2 symmetric Zn(002)//Cu asymmetric batteries achieve high average Coulombic efficiency 99.92% 500 cycles 10 , enabling demonstration engineering for advancing
Language: Английский
Citations
1
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 5, 2024
Abstract Aqueous Zn‐ion batteries (AZIBs) are promising energy storage systems due to their low cost, excellent safety, and environmental friendliness. However, challenges like uncontrollable dendrite growth side reactions during battery operation limit commercialization. Addressing these issues requires regulating ion deposition behavior at the anode/electrolyte interface. The electrostatic shielding effect, which leverages interplay between electric potential ionic motion, provides a unique mechanism inhibit zinc dendrites effectively. Despite significant progress in understanding AZIBs, comprehensive summary of its effects is still lacking. This paper first reviews primary AZIBs then describes how effect can optimize performance. Existing strategies for achieving through anode structure optimization electrolyte optimization‐are classified analyzed. Finally, review summarizes current stabilizing anodes, identifies existing challenges, discusses future potential, this approach AZIBs.
Language: Английский
Citations
1
Energy storage materials, Journal Year: 2024, Volume and Issue: unknown, P. 103909 - 103909
Published: Nov. 1, 2024
Language: Английский
Citations
0