Functionalized Separator Strategies toward Advanced Aqueous Zinc‐Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(20)

Published: April 7, 2023

Abstract Aqueous zinc‐ion batteries (ZIBs) enjoy a good reputation for being safe, affordable to produce, and ecologically friendly due the use of water‐based electrolytes. The main factors restricting development ZIBs, however, are negative effects dendrite deposition on zinc anode dissolution common cathodes such as Mn V‐based cathodes. Various techniques have been used address these issues, including regulating electrolyte concentration or solvation structure, developing coating current collector lessen growth, improving structural stability cathode. Recently, functionalized separator strategies gained popularity effective ways improve ZIB performance. is also practical technique save costs increase volumetric energy density battery by substituting usual thick expensive glass fiber separator. separators in ZIBs subject ongoing research, this work presents most recent findings systematic manner, focusing both methods prepare modify them. Finally, brief explanation constraints future potential provided.

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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Metal-organic-framework-based materials as platforms for energy applications

Chem, Journal Year: 2023, Volume and Issue: 10(1), P. 86 - 133

Published: Oct. 10, 2023

Language: Английский

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In‐Situ Integration of a Hydrophobic and Fast‐Zn²⁺‐Conductive Inorganic Interphase to Stabilize Zn Metal Anodes

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

Published: May 2, 2023

The irreversible issues of Zn anode stemming from dendrite growth and water-induced erosion have severely hindered the commercialization rechargeable aqueous batteries. Herein, a hydrophobic fast-Zn2+ -conductive zinc hexacyanoferrate (HB-ZnHCF) interphase layer is in situ integrated on by rapid room-temperature wet-chemistry method to address these dilemmas. Different currently proposed hydrophilic inorganic cases, compact HB-ZnHCF effectively prevents access water molecules surface, thus avoiding H2 evolution corrosion. Moreover, with large internal ion channels, strong zincophilicity, high Zn2+ transference number (0.86) permits fast transport enables smooth deposition. Remarkably, resultant HB-ZnHCF@Zn electrode delivers unprecedented reversibility 99.88 % Coulombic efficiency over 3000 cycles, realizes long-term cycling 5800 h (>8 months, 1 mA cm-2 ) 1000 (10 ), assures stable operation full battery both coin- pouch-type configurations.

Language: Английский

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Roadmap for rechargeable batteries: present and beyond

Science China Chemistry, Journal Year: 2023, Volume and Issue: 67(1), P. 13 - 42

Published: Dec. 26, 2023

Language: Английский

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Loosening Zinc Ions from Separator Boosts Stable Zn Plating/Striping Behavior for Aqueous Zinc Ion Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(42)

Published: Sept. 25, 2023

Abstract Aqueous zinc ion batteries are attracting broad interest in stationary energy storage where low cost, robust security, and satisfactory capacity matter most. However, metal anodes suffer from destructive dendrite issues during repeated charging/discharging process, decreasing the cycle life of batteries. Herein, smoother plating/striping behaviors achieved by group modification structural unit polymer separator. Experimental results theoretical simulations reveal that skeleton can release more easily when modified with carbonylation side groups contribute to much faster transfer capability. Typically, symmetric Zn cells a thin thickness separator 21 µm exhibit ultralong over 2800 h at 1 mA cm −2 within mAh 300 under high current density 5 areal 3 . Full using sodium vanadium oxide cathode also show stable reversible performance after 2000 cycles A g −1 This work is expected inspire promising strategies molecular design polymeric toward stabilizing beyond this anode itself.

Language: Английский

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Highly Compact Zinc Metal Anode and Wide‐Temperature Aqueous Electrolyte Enabled by Acetamide Additives for Deep Cycling Zn Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(18)

Published: Jan. 25, 2024

Abstract Rechargeable aqueous zinc (Zn) batteries are a promising candidate for large‐scale energy storage, but the noncompact and dendritic Zn deposition, water‐induced parasitic reaction, narrow operating temperature range severely hinder their practical application. Here, it is demonstrated that these challenges can be conquered by introducing low‐cost acetamide (Ace) into electrolytes. The non‐sacrificial Ace molecules with both donor acceptor groups disrupt original H‐bonded network of water, replace solvating‐H 2 O in 2+ ‐solvation sheath, form dynamic adsorption on Zn, create an H O‐poor electrical double‐layer. Consequently, presence suppresses water erosion homogenizes nucleation/growth, reduces reactivity, depresses freezing point electrolyte. formulated Ace‐containing electrolyte features wide from −20 to 60 °C enables highly compact dendrite‐free electrodeposition even at 25 mAh cm −2 using non‐pressure electrolytic cell. Moreover, allows electrodes achieve long‐term lifespan across −20–60 excellent deep cycling stability under 85.3% depth‐of‐discharge (25 ) over 400 h, supports stable operation Zn–Iodine full harsh conditions.

Language: Английский

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Orientational Electrodeposition of Highly (002)-Textured Zinc Metal Anodes Enabled by Iodide Ions for Stable Aqueous Zinc Batteries

ACS Nano, Journal Year: 2023, Volume and Issue: 17(23), P. 23861 - 23871

Published: Nov. 15, 2023

Regulating the crystallographic texture of zinc (Zn) metal anode is promising to promote Zn reversibility in aqueous electrolytes, but direct fabrication specific textured still remains challenging. Herein, we report a facile iodide ion (I-)-assisted electrodeposition strategy that can scalably fabricate highly (002) crystal plane-textured (H-(002)-Zn). Theoretical and experimental characterizations demonstrate presence I- additives significantly elevate growth rate (100) plane, homogenize nucleation, plating kinetics, thus enabling uniform H-(002)-Zn electrodeposition. Taking electrolytic cell with conventional ZnSO4-based electrolyte commercial Cu substrate as model system, gradually transforms from (101) increase NaI additive concentration. In optimized 1 M ZnSO4 + 0.8 electrolyte, as-prepared features compact structure an ultrahigh intensity ratio signal without containing signal. The free-standing electrode manifests stronger resistance interfacial side reactions than (101)-textured electrode, delivering high efficiency 99.88% over 400 cycles ultralong cycling lifespan 6700 h (>9 months at mA cm-2) assuring stable operation full batteries. This work will enlighten efficient electrosynthesis high-performance anodes for practical

Language: Английский

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A Functional Janus Ag Nanowires/Bacterial Cellulose Separator for High‐Performance Dendrite‐Free Zinc Anode Under Harsh Conditions

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(47)

Published: Sept. 20, 2023

Aqueous zinc-ion batteries (AZIBs) offer promising prospects for large-scale energy storage due to their inherent abundance and safety features. However, the growth of zinc dendrites remains a primary obstacle practical industrialization AZIBs, especially under harsh conditions high current densities elevated temperatures. To address this issue, Janus separator with an exceptionally ultrathin thickness 29 µm is developed. This features bacterial cellulose (BC) layer on one side Ag nanowires/bacterial (AgNWs/BC) other side. High zincophilic property excellent electric/thermal conductivity AgNWs make them ideal serving as ion pump accelerate Zn2+ transport in electrolyte, resulting greatly improved conductivity, deposition homogeneous Zn nuclei, dendrite-free Zn. Consequently, Zn||Zn symmetrical cells exhibit stable cycle life over 1000 h 80 mA cm-2 are sustained 600 at 10 50 °C. Further, enables cycling stability aqueous capacitors (AZICs), scaled-up flexible soft-packaged batteries. study demonstrates potential functional separators promoting application batteries, particularly conditions.

Language: Английский

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Amino‐Enabled Desolvation Sieving Effect Realizes Dendrite‐Inhibiting Thin Separator for Durable Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(52)

Published: Sept. 15, 2023

Abstract The cyclability of aqueous zinc‐ion batteries is greatly influenced by Zn dendrites and parasitic reactions. Although separator modifications have proven to be effective in addressing these issues, most the developed separators are too thick meet practical requirements. Herein, an amino (−NH 2 )‐functionalized Zr‐based metal–organic framework (MOF), i.e., UiO‐66‐NH , incorporated into lignocellulose separator. functional groups not only possess good zincophilicity but also strongly interact with H O molecules through hydrogen bonding. Therefore, abundant intersecting subnano‐sized channels within act as desolvation sieves facilitate migration uniform distribution 2+ ions. Even at a rather low thickness 20 µm, modified can significantly improve reversibility electrochemistry suppress water‐induced evolution. With use this separator, electrodes demonstrate working life exceeding 2000 h current density mA cm −2 remarkable dendrite‐free characteristic remain operationally viable under ultrahigh areal capacity 25 mAh . Additionally, resultant Zn//MnO battery provides superior rate capability excellent cyclability. This study novel insights utilization inhibit unfavorable phenomena batteries.

Language: Английский

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