Sustainable zinc–air battery chemistry: advances, challenges and prospects

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(17), P. 6139 - 6190

Published: Jan. 1, 2023

Sustainable zinc-air batteries (ZABs) are considered promising energy storage devices owing to their inherent safety, high density, wide operating temperature window, environmental friendliness, etc., showing great prospect for future large-scale applications. Thus, tremendous efforts have been devoted addressing the critical challenges associated with sustainable ZABs, aiming significantly improve efficiency and prolong operation lifespan. The growing interest in ZABs requires in-depth research on oxygen electrocatalysts, electrolytes, Zn anodes, which not systematically reviewed date. In this review, fundamentals of electrocatalysts air cathodes, physicochemical properties ZAB issues strategies stabilization anodes summarized from perspective fundamental characteristics design principles. Meanwhile, significant advances situ/operando characterization highlighted provide insights into reaction mechanism dynamic evolution electrolyte|electrode interface. Finally, several thoughts perspectives provided regarding opportunities ZABs. Therefore, review provides a thorough understanding advanced chemistry, hoping that timely comprehensive can shed light upcoming horizons prosperous area.

Language: Английский

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Production of gas-releasing electrolyte-replenishing Ah-scale zinc metal pouch cells with aqueous gel electrolyte

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

Published: July 14, 2023

Abstract Aqueous zinc batteries are ideal candidates for grid-scale energy storage because of their safety and low-cost aspects. However, the production large-format aqueous Zn is hindered by electrolyte consumption, hydrogen gas evolution accumulation, dendrites growth. To circumvent these issues, here we propose an “open” pouch cell design batteries, which can release allow refilling components consumed during cycling. The uses a gel containing crosslinked kappa (k)-carrageenan chitosan. It bonds water molecules hinders side reaction with Zn, preventing leakage fast evaporation. As proof-of-concept, report assembly testing | |Zn x V 2 O 5 ·nH multi-layer using carrageenan/chitosan electrolyte, delivers initial discharge capacity 0.9 Ah 84% retention after 200 cycles at mA g ‒1 , 370 kPa 25 °C.

Language: Английский

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Aqueous Zinc‐Iodine Batteries: From Electrochemistry to Energy Storage Mechanism

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(41)

Published: Sept. 1, 2023

Abstract As one of the most appealing energy storage technologies, aqueous zinc‐iodine batteries still suffer severe problems such as low density, slow iodine conversion kinetics, and polyiodide shuttle. This review summarizes recent development Zn─I 2 with a focus on electrochemistry underlying working mechanism. Starting from fundamentals batteries, zinc anode, well scientific existing in are introduced. The concrete strategies dealing cathode, electrolyte, separator challenges confronting elaborated well. To deepen understanding important findings mechanism different summarized detail. Finally, some guidelines directions for also provided. is expected to battery promote their practical applications future.

Language: Английский

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Amphoteric Cellulose‐Based Double‐Network Hydrogel Electrolyte Toward Ultra‐Stable Zn Anode

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(13)

Published: Feb. 1, 2023

Zinc (Zn) metal anode suffers from uncontrollable Zn dendrites and parasitic side reactions at the interface, which restrict practical application of aqueous rechargeable zinc batteries (ARZBs). Herein, an amphoteric cellulose-based double-network is introduced as hydrogel electrolyte to overcome these obstacles. On one hand, groups build anion/cation transport channels regulate electro-deposition behavior on (002) crystal plane enabled by homogenizing Zn2+ ions flux. other strong bonding between negatively charged carboxyl promote desolvation process [Zn(H2 O)6 ]2+ eliminate reactions. Based above two functions, enables ultra-stable cycling with a cumulative capacity 7 Ah cm-2 20 mA /20 mAh for Zn||Zn cell. This work provides significant concepts developing electrolytes realize stable high-performance ARZBs.

Language: Английский

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A Polarized Gel Electrolyte for Wide‐Temperature Flexible Zinc‐Air Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(20)

Published: March 4, 2023

The development of flexible zinc-air batteries (FZABs) has attracted broad attention in the field wearable electronic devices. Gel electrolyte is one most important components FZABs, which urgent to be optimized match with Zn anode and adapt severe climates. In this work, a polarized gel polyacrylamide-sodium citric (PAM-SC) designed for SC molecules contain large amount -COO- functional groups. groups can form an electrical between suppress dendrite growth. Besides, PAM-SC fix H2 O molecules, prevents water from freezing evaporating. hydrogel delivers high ionic conductivity 324.68 mS cm-1 retention 96.85 % after being exposed 96 h. FZABs exhibit long cycling life 700 cycles at -40 °C, showing application prospect under extreme conditions.

Language: Английский

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Zn-based batteries for sustainable energy storage: strategies and mechanisms

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 4877 - 4925

Published: Jan. 1, 2024

This review systematically summarizes various redox mechanisms in Zn-based batteries and design strategies to improve their electrochemical performance, which provides a reference for future development of high-performance batteries.

Language: Английский

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Hydrogen bond acceptor lined hydrogel electrolyte toward Dendrite-Free aqueous Zn ion batteries with low temperature adaptability

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 464, P. 142607 - 142607

Published: March 27, 2023

Language: Английский

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Anti‐Fatigue Hydrogel Electrolyte for All‐Flexible Zn‐Ion Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(36)

Published: May 27, 2023

Hydrogel electrolytes are widely explored in Zn metal batteries for application wearable electronics. While extensive studies have been conducted on optimizing the chemical structure and boosting tensile elasticity, mechanical stability of hydrogel under repeated deformation is largely overlooked, leading to unsatisfactory performance at large cycling capacity. This work systematically analyzes compressive fatigue-resistance properties electrolyte, revealing critical roles salt copolymer matrix crack initiation propagation. It shows that, premise homogeneous deposition, an improved anti-fatigue property essential achieve high-capacity anodes. The optimal Zn(ClO4 )2 -polyacrylamide/chitosan electrolyte (C-PAMCS) exhibits unprecedented lifespan 1500 h Zn//Zn cells a current density 10 mA cm-2 high areal capacity mAh . potential C-PAMCS exemplified all-flexible Zn-ion enabled by flexible collector consisting Ag nanowires embedded elastomer. study provides rationale engineering toward advanced battereis devices.

Language: Английский

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Edge-Hosted Mn-N₄-C₁₂ Site Tunes Adsorption Energy for Ultralow-Temperature and High-Capacity Solid-State Zn-Air Battery

ACS Nano, Journal Year: 2023, Volume and Issue: 17(10), P. 9565 - 9574

Published: May 9, 2023

Robust operation of Zn-air batteries (ZABs) with high capacity and excellent energy efficiency is desirable for practical harsh applications, whose bottlenecks are mainly originated from the sluggish oxygen catalytic kinetics unstable Zn|electrolyte interface. In this work, we synthesized edge-hosted Mn-N4-C12 coordination supported on N-doped defective carbon (Mn1/NDC) catalyst, exhibiting a good bifunctional performance reduction/evolution reaction (ORR/OER) low potential gap 0.684 V. Theoretical calculation reveals that displayed lowest overpotential ORR/OER owing to decreased adsorption free OH*. The Mn1/NDC-based aqueous ZABs deliver impressive rate performance, ultralong discharging lifespan, stability. Notably, assembled solid-state demonstrate 1.29 Ah, large critical current density 8 mA cm-2, robust cycling stability at -40 °C, which should be attributed Mn1/NDC anti-freezing electrolyte (SSE). Meanwhile, zincophilic nanocomposite SSE polarity accounts stable Zn|SSE interface compatibility. This work not only highlights importance atomic structure design electrocatalysts ultralow-temperature high-capacity but also spurs development sustainable Zn-based conditions.

Language: Английский

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Amphoteric Cellulose‐Based Double‐Network Hydrogel Electrolyte Toward Ultra‐Stable Zn Anode

Angewandte Chemie, Journal Year: 2023, Volume and Issue: 135(13)

Published: Feb. 1, 2023

Abstract Zinc (Zn) metal anode suffers from uncontrollable Zn dendrites and parasitic side reactions at the interface, which restrict practical application of aqueous rechargeable zinc batteries (ARZBs). Herein, an amphoteric cellulose‐based double‐network is introduced as hydrogel electrolyte to overcome these obstacles. On one hand, groups build anion/cation transport channels regulate electro‐deposition behavior on (002) crystal plane enabled by homogenizing 2+ ions flux. other strong bonding between negatively charged carboxyl promote desolvation process [Zn(H 2 O) 6 ] eliminate reactions. Based above two functions, enables ultra‐stable cycling with a cumulative capacity 7 Ah cm −2 20 mA /20 mAh for Zn||Zn cell. This work provides significant concepts developing electrolytes realize stable high‐performance ARZBs.

Language: Английский

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