In-situ construction of a hydroxide-based solid electrolyte interphase for robust zinc anodes

Yuan, Wentao; Ma, Guoqiang; Nie, Xueyu; Wang, Yuanyuan; Di, Shengli; Wang, Liubin; Wang, Jing; Shen, Shigang; Zhang, Ning

doi:10.1016/j.cej.2021.134076

Cited by 76 publications

(46 citation statements)

References 50 publications

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“…The Coulombic efficiency values were obtained from the stripping capacity divided by the plating capacity . As revealed in Figure S8a, the Zn//Cu in 1 M Zn(CF 3 SO 3 ) 2 aqueous electrolyte displays inferior cyclic stability with severe potential fluctuations, which is assigned to the water-induced side reaction in 1 M Zn(CF 3 SO 3 ) 2 on the Zn anode . In contrast, Zn anode displays improved reversibility and stability in the hydrogel electrolyte.…”

Section: Resultsmentioning

confidence: 99%

“…63 As revealed in Figure S8a, the Zn//Cu in 1 M Zn(CF 3 SO 3 ) 2 aqueous electrolyte displays inferior cyclic stability with severe potential fluctuations, which is assigned to the water-induced side reaction in 1 M Zn(CF 3 SO 3 ) 2 on the Zn anode. 64 In contrast, Zn anode displays improved reversibility and stability in the hydrogel electrolyte. The Zn//Cu cell with PAAm/agar/Zn(CF 3 SO 3 ) 2 exhibits an initial Coulombic efficiency value of 95.0% and gradually increases to 98.5% after 20 cycles.…”

Section: Resultsmentioning

confidence: 99%

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Natural Polysaccharide Strengthened Hydrogel Electrolyte and Biopolymer Derived Carbon for Durable Aqueous Zinc Ion Storage

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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Aqueous zinc-ion hybrid supercapacitors (ZHSCs) represent one of the current research subjects because of their flame retardancy, ease of manufacturing, and exceptional roundtrip efficiency. With the evolution into real useful energy storage cells, the bottleneck factors of the corrosion and dendrite growth problems must be properly resolved for largely boosting their cycling life and energy efficiency. Herein, a natural polysaccharide strengthened hydrogel electrolyte (denoted as PAAm/agar/Zn(CF3SO3)2) was engineered by designing an asymmetric dual network of covalently cross-linked polyacrylamide (denoted as PAAm) and physically cross-linked loose polysaccharide (e.g., agar) followed by intense uptake of Zn(CF3SO3)2 aqueous electrolyte. In this polymeric matrix, the PAAm chains are responsible for constructing the soft domains to immobilize the water molecules, and the agar component boosts the mechanical performance (by using its inherent reversible sacrificial bonds) and favors the electrolyte ion transport. Due to these reasons, the as-designed hydrogel electrolyte effectively inhibits the zinc dendrite growth, realizes the uniform Zn deposition, and affords a satisfactory ionic conductivity of 1.55 S m–1, excellent tensile strength (78.9 kPa at 507.7% stretchable), and high compression strength (118.0 kPa at 60.0% strain). Additionally, a biopolymer-derived N-doped carbon microsphere cathode material with a highly interconnected porous carbonaceous network (denoted as NC) was also synthesized, which delivers a high capacity of 92.8 mAh g–1, along with superb rate capability and long duration cycling lifespan (95.4% retention for 10000 cycles) in the aqueous Zn//NC ZHSC. More notably, with integrated merits of the PAAm/agar/Zn(CF3SO3)2 hydrogel electrolyte and NC, the as-built quasi-solid-state ZHSC achieves a high specific capacity of 73.4 mAh g–1 and superior energy density of 61.3 Wh kg–1 together with excellent cycling stability for 10000 cycles. This work demonstrated favorable practicability in the structural design of the hydrogel electrolytes and electrode materials for advanced ZHSC applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Natural Polysaccharide Strengthened Hydrogel Electrolyte and Biopolymer Derived Carbon for Durable Aqueous Zinc Ion Storage

Liu

et al. 2022

ACS Appl. Mater. Interfaces

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“…14 By introducing the DPA additive, the current density quickly stabilizes at about À3.5 mA cm À2 aer 40 s, suggesting the transformation from a 2D to 3D Zn 2+ diffusion process that could facilitate the formation of dense and smooth Zn deposition. 57,58 The largely decreased current density aer the addition of DPA also reects the strong ability of the superzincophilic DPA additive in regulating Zn 2+ diffusion. 55 As a result, the ZnkTi cell cycled in ZSPA electrolyte delivered an average CE of 99.2% at 10 mA cm À2 and 10 mA h cm À2 for 150 cycles, whereas the ZnkTi cell in ZSO electrolyte only lasted 24 cycles with an average CE of 98.8% (Fig.…”

Section: Resultsmentioning

confidence: 99%

Super-zincophilic additive induced interphase modulation enables long-life Zn anodes at high current density and areal capacity

et al. 2022

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“…A contact angle was carried out to evaluate the hydrophilicity of the Zn anode surface ( Figures 1D,E ), as the wetting ability plays a key role in lowering the surface energy and promoting even Zn 2+ flux, leading to fast and homogenous Zn deposition ( Yuan et al, 2022 ). It is encouraging that the TA@Zn anode delivers a smaller contact angle of 33.3° compared with the bare Zn anode (88.6°), revealing an admirable surface wetting ability of the TA@Zn, which might bring a faster and uniform Zn deposition behavior ( Zhou X. et al, 2022 ).…”

Section: Resultsmentioning

confidence: 99%

Tannic acid assisted metal–chelate interphase toward highly stable Zn metal anodes in rechargeable aqueous zinc-ion batteries

Qin

Chen

et al. 2022

Front. Chem.

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Aqueous zinc-ion batteries (AZIBs) have attracted extensive attention because of their eco-friendliness, intrinsic safety, and high theoretical capacity. Nevertheless, the long-standing Zn anode issues such as dendrite growth, hydrogen evolution, and passivation greatly restrict the further development of AZIBs. Herein, a metal–chelate interphase with high Zn affinity is constructed on the Zn metal surface (TA@Zn) via dipping metallic Zn into a tannic acid (TA) solution to address the aforementioned problems. Benefiting from the abundant hydrophilic and zincophilic phenolic hydroxyl groups of TA molecules, the metal–chelate interphase shows strong attraction for Zn2+ ions, guiding uniform zinc deposition as well as decreasing Zn2+ migration barrier. Therefore, the TA@Zn anode displays an extended lifespan of 850 h at 1 mA cm−2, 1 mAh cm−2 in the Zn|Zn symmetrical cell, and a high Coulombic efficiency of 96.8% in the Zn|Ti asymmetric cell. Furthermore, the Zn|V2O5 full cell using TA@Zn anode delivers an extremely high capacity retention of 95.9% after 750 cycles at 2 A g−1. This simple and effective strategy broadens the interfacial modification scope on Zn metal anodes for advanced rechargeable Zn metal batteries.

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In-situ construction of a hydroxide-based solid electrolyte interphase for robust zinc anodes

Cited by 76 publications

References 50 publications

Natural Polysaccharide Strengthened Hydrogel Electrolyte and Biopolymer Derived Carbon for Durable Aqueous Zinc Ion Storage

Natural Polysaccharide Strengthened Hydrogel Electrolyte and Biopolymer Derived Carbon for Durable Aqueous Zinc Ion Storage

Super-zincophilic additive induced interphase modulation enables long-life Zn anodes at high current density and areal capacity

Tannic acid assisted metal–chelate interphase toward highly stable Zn metal anodes in rechargeable aqueous zinc-ion batteries

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