Developing Cathode Materials for Aqueous Zinc Ion Batteries: Challenges and Practical Prospects

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(5)

Published: April 18, 2023

Abstract Growth in intermittent renewable sources including solar and wind has sparked increasing interest electrical energy storage. Grid‐scale storage integrated with significant advantages regulation grid security. Aqueous zinc‐ion batteries (AZIBs) have emerged as a practically attractive option for because of environmentally benign aqueous‐based electrolytes, high theoretical capacity Zn anode, global reserves Zn. However, application AZIBs at the grid‐scale is restricted by drawbacks cathode material(s). Herein, comprehensive summary features mechanisms latest materials provided. The fundamental problems corresponding in‐depth causes critically reviewed. It also assess practical challenges, appraise their translation to commerce industry, systematically summarize discuss potential solutions reported recent works. established necessary design strategies anodes electrolytes that are matched commercializing AZIBs. Finally, it concluded perspective on prospects advancing development future Findings will be benefit range researchers manufacturers

Language: Английский

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Reversible adsorption with oriented arrangement of a zwitterionic additive stabilizes electrodes for ultralong-life Zn-ion batteries

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(6), P. 2684 - 2695

Published: Jan. 1, 2023

A zwitterionic additive ( l -CN) with a positively charged quaternary ammonium site and multifunctional polar groups was employed to achieve ultralong-life Zn-ion batteries.

Language: Английский

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Lean-water hydrogel electrolyte for zinc ion batteries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: July 1, 2023

Abstract Solid polymer electrolytes (SPEs) and hydrogel were developed as for zinc ion batteries (ZIBs). Hydrogels can retain water molecules provide high ionic conductivities; however, they contain many free molecules, inevitably causing side reactions on the anode. SPEs enhance stability of anodes, but typically possess low conductivities result in impedance. Here, we develop a lean electrolyte, aiming to balance transfer, anode stability, electrochemical window resistance. This is equipped with molecular lubrication mechanism ensure fast transportation. Additionally, this design leads widened highly reversible plating/ stripping. The full cell shows excellent cycling capacity retentions at current rates, respectively. Moreover, superior adhesion ability be achieved, meeting needs flexible devices.

Language: Английский

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A biocompatible electrolyte enables highly reversible Zn anode for zinc ion battery

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 16, 2023

Progress towards the integration of technology into living organisms requires power devices that are biocompatible and mechanically flexible. Aqueous zinc ion batteries use hydrogel biomaterials as electrolytes have emerged a potential solution operates within biological constraints; however, most these feature inferior electrochemical properties. Here, we propose electrolyte by utilising hyaluronic acid, which contains ample hydrophilic functional groups. The gel-based offers excellent anti-corrosion ability for anodes regulates nucleation/growth. Also, gel provides high battery performance, including 99.71% Coulombic efficiency, over 5500 hours long-term stability, improved cycle life 250 under utilization rate 80%, biocompatibility. Importantly, Zn//LiMn2O4 pouch cell exhibits 82% capacity retention after 1000 cycles at 3 C. This work presents promising chemistry controls behaviour, offering great in energy-related applications beyond.

Language: Английский

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Emerging strategies for steering orientational deposition toward high-performance Zn metal anodes

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(12), P. 5017 - 5038

Published: Jan. 1, 2022

Obtaining smooth plating layers by steering Zn orientational deposition is the key to achieving longevous anodes. The design strategies of inducing and relating mechanistic insights are reviewed.

Language: Английский

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Solvent control of water O−H bonds for highly reversible zinc ion batteries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: May 11, 2023

Aqueous Zn-ion batteries have attracted increasing research interest; however, the development of these has been hindered by several challenges, including dendrite growth, Zn corrosion, cathode material degradation, limited temperature adaptability and electrochemical stability window, which are associated with water activity solvation structure electrolytes. Here we report that is suppressed electron density protons through interactions highly polar dimethylacetamide trimethyl phosphate molecules. Meanwhile, corrosion in hybrid electrolyte mitigated, window operating extended. The alters surface energy Zn, guiding (002) plane dominated deposition Zn. Molecular dynamics simulation evidences Zn2+ ions solvated fewer molecules, resulting lower lattice strain NaV3O8·1.5H2O during insertion hydrated ions, boosting lifespan Zn|| cell to 3000 cycles.

Language: Английский

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Polycation‐Regulated Electrolyte and Interfacial Electric Fields for Stable Zinc Metal Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(27)

Published: May 8, 2023

Zn metal as one of promising anode materials for aqueous batteries but suffers from disreputable dendrite growth, grievous hydrogen evolution and corrosion. Here, a polycation additive, polydiallyl dimethylammonium chloride (PDD), is introduced to achieve long-term highly reversible plating/stripping. Specifically, the PDD can simultaneously regulate electric fields electrolyte Zn/electrolyte interface improve Zn2+ migration behaviors guide dominant (002) deposition, which veritably detected by Zeta potential, Kelvin probe force microscopy scanning electrochemical microscopy. Moreover, also creates positive charge-rich protective outer layer N-rich hybrid inner layer, accelerates desolvation during plating process blocks direct contact between water molecules anode. Thereby, reversibility stability anodes are substantially improved, certified higher average coulombic efficiency 99.7 % Zn||Cu cells 22 times longer life Zn||Zn compared with that PDD-free electrolyte.

Language: Английский

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In Situ Construction of Anode–Molecule Interface via Lone‐Pair Electrons in Trace Organic Molecules Additives to Achieve Stable Zinc Metal Anodes

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(22)

Published: April 25, 2023

Abstract The practical application of aqueous zinc batteries (AZBs) is significantly limited by the poor reversibility anodes, including rampant dendrite growth and severe interfacial side‐reactions. Herein, trace hexamethylenetetramine (HMTA) additive with a lone‐pair‐electron containing heterocycle introduced for Zn metal anode protection. Specifically, added HMTA can change solvated structure strong interaction ions, preferentially absorb on surface to in situ establish an unique anode–molecule interface. Such interface not only shows affinity promote dynamic transmission deposition 2+ ions but also displays role suppressing parasitic reactions. Consequently, electrolyte achieves high Coulombic efficiency 99.75%, delivers remarkable lifespan over 4000 h at 5 mA cm −2 1 mAh Zn//Zn symmetric cell. Even under deep plating/stripping condition (5 ), it still run almost 600 h. Additionally, Zn//V 2 O full cell retains capacity retention 61.7% after cycles A g −1 . innovative strategy expected be immediate benefit design low‐cost AZBs ultra‐long lifespan.

Language: Английский

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Organic pH Buffer for Dendrite‐Free and Shuttle‐Free Zn‐I₂ Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(21)

Published: March 23, 2023

Aqueous Zn-Iodine (I2 ) batteries are attractive for large-scale energy storage. However, drawbacks include, Zn dendrites, hydrogen evolution reaction (HER), corrosion and, cathode "shuttle" of polyiodines. Here we report a class N-containing heterocyclic compounds as organic pH buffers to obviate these. We evidence that addition pyridine /imidazole regulates electrolyte pH, and inhibits HER anode corrosion. In addition, imidazole preferentially absorb on metal, regulating non-dendritic plating /stripping, achieving high Coulombic efficiency 99.6 % long-term cycling stability 3200 h at 2 mA cm-2 , mAh . It is also confirmed polyiodines shuttling boosts conversion kinetics I- /I2 As result, the Zn-I2 full battery exhibits long cycle >25 000 cycles specific capacity 105.5 g-1 10 A conclude buffer engineering practical dendrite-free shuttle-free batteries.

Language: Английский

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Challenges and perspectives of hydrogen evolution-free aqueous Zn-Ion batteries

Energy storage materials, Journal Year: 2023, Volume and Issue: 59, P. 102767 - 102767

Published: April 6, 2023

Language: Английский

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