Amphipathic Phenylalanine-Induced Nucleophilic–Hydrophobic Interface Toward Highly Reversible Zn Anode

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)

Published: March 28, 2024

Abstract Aqueous Zn 2+ -ion batteries (AZIBs), recognized for their high security, reliability, and cost efficiency, have garnered considerable attention. However, the prevalent issues of dendrite growth parasitic reactions at electrode interface significantly impede practical application. In this study, we introduced a ubiquitous biomolecule phenylalanine (Phe) into electrolyte as multifunctional additive to improve reversibility anode. Leveraging its exceptional nucleophilic characteristics, Phe molecules tend coordinate with ions optimizing solvation environment. Simultaneously, distinctive lipophilicity aromatic amino acids empowers higher adsorption energy, enabling construction protective interphase. The hydrophobic benzene ring ligands act cleaners repelling H 2 O molecules, while hydrophilic hydroxyl carboxyl groups attract homogenizing flux. Moreover, preferential reduction prior facilitates in situ formation an organic–inorganic hybrid solid interphase, enhancing interfacial stability Consequently, Zn||Zn cells display improved reversibility, achieving extended cycle life 5250 h. Additionally, Zn||LMO full exhibit enhanced cyclability retaining 77.3% capacity after 300 cycles, demonstrating substantial potential advancing commercialization AZIBs.

Language: Английский

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Regulating Water Activity for All‐Climate Aqueous Zinc‐Ion Batteries

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

Published: June 12, 2024

Abstract Suppressing the water activity is challenging to achieve high‐performing aqueous zinc ion batteries (AZIBs), especially for its practical climate adaptability. Reconstructing H‐bond network and repealing solvation can effectively reinforce covalency inside molecular. Here, a hydrogel electrolyte formula utilizing ClO 4 − anions hydrophilic ─NH 2 on polyacrylamide chains shown bond with molecules, while zincophilic glucose preferentially regulate Zn 2+ solvation. The multifunctional structure disrupt intrinsic inhibit interface side‐reactions induced by active water. Finally, delayed freezing point expanded voltage stability window are realized, which promotes ZIBs steady operate in wide temperature range. When operating at 70 −30 ˚C, Zn//NVO battery achieves high specific capacity of 488 254 mAh g −1 , respectively, surpassing most previously reported results. Remarkably, pouch delivers state‐of‐the‐art 438.1 realizes retention 76.3% after 400 cycles 200 mA .

Language: Английский

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Additives for Aqueous Zinc‐Ion Batteries: Recent Progress, Mechanism Analysis, and Future Perspectives

Small, Journal Year: 2024, Volume and Issue: 20(33)

Published: April 8, 2024

Aqueous zinc-ion batteries (ZIBs) stand out as a promising next-generation electrochemical energy storage technology, offering notable advantages such high specific capacity, enhanced safety, and cost-effectiveness. However, the application of aqueous electrolytes introduces challenges: Zn dendrite formation parasitic reactions at anode, well dissolution, electrostatic interaction, by-product cathode. In addressing these electrode-centric problems, additive engineering has emerged an effective strategy. This review delves into latest advancements in electrolyte additives for ZIBs, emphasizing their role resolving existing issues. Key focus areas include improving morphology reducing side during battery cycling using synergistic effects modulating anode interface regulation, zinc facet control, restructuring hydrogen bonds solvation sheaths. Special attention is given to efficacy amino acids zwitterions due multifunction improve performance concerning cycle stability lifespan. Additionally, recent are studied low-temperature extreme weather applications meticulously. concludes with holistic look future engineering, underscoring its critical advancing ZIB amidst complexities challenges additives.

Language: Английский

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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, Journal Year: 2024, Volume and Issue: 67, P. 103238 - 103238

Published: Feb. 5, 2024

Language: Английский

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Anion-promoted CB[6] macromolecule dissolution for stable Zn-ion batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(13), P. 4758 - 4769

Published: Jan. 1, 2024

CB[6] not only forms complexes with SO 4 2− anions to enhance its solubility, but also adsorbs horizontally on the Zn surface form an H 2 O/SO shielding layer and induces epitaxial deposition of 2+ along (002) lattice plane.

Language: Английский

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