Unveiling unique steric effect of threonine additive for highly reversible Zn anode

Miao, Zhenyu; Liu, Qilu; Wei, Wangran; Zhao, Xiaoru; Du, Min; Li, Houzhen; Zhang, Feng; Hao, Min; Cui, Zihao; Sang, Yuanhua; Wang, Xiwei; Liu, Hong; Wang, Shuhua

doi:10.1016/j.nanoen.2022.107145

Cited by 101 publications

(60 citation statements)

References 37 publications

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“…The peak located at 983.38 cm –1 can be attributed to the symmetrical stretching vibration of the SO 4 2– (V s ‐SO 4 2– ). With the addition of 5 and 50 m m TU, V s ‐SO 4 2– shifts to higher frequencies of 984.84 and 985.93 cm –1 , respectively, suggesting the coordinated H 2 O in Zn(H 2 O) 6 2+ were partially replaced by the OSO 3 2– , which leads to the weakened solvation between H 2 O and Zn 2+ , [ 31 ] thus suppressing the water‐induced side reactions during the Zn deposition process.…”

Section: Resultsmentioning

confidence: 99%

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Qin

Kuang

et al. 2022

Adv Funct Materials

159

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Aqueous zinc ion batteries (AZIBs) are receiving increasing attention for large-scale energy storage systems owing to their appealing features with intrinsic safety, low cost, and scalability. Unfortunately, the water-induced parasitic reactions and dendrite growth on the Zn anode severely impede the further development of AZIBs. Herein, a thiourea additive is introduced into ZnSO 4 electrolyte to construct unique metal-molecule interface for simultaneously regulating the Zn anode interface chemistry and the bulk electrolyte environment. Experimental results and theoretical calculations reveal that the formed metal-molecule interface can not only serve as a corrosion inhibitor for alleviating the water-induced side reactions, but also act as a Zn 2+ ion regulator for promoting the homogenous Zn deposition, thus achieving a corrosion-free and dendrite-free Zn anode. Consequently, the Zn|Zn symmetric cell exhibits an extended lifespan of 1200 h at 1 mA cm -2 , 1mAh cm -2 , and a high cumulative capacity of 3000 mAh cm -2 at 10 mA cm -2 . When paired with V 2 O 5 cathode, the Zn|V 2 O 5 full cell delivers a high capacity retention of 76.0% after 1000 cycles at 1 A g -1 . This study paves a new way to modulate Zn electrode interface chemistry by the novel design of metal-molecule interface for advanced rechargeable Zn metal batteries and beyond.

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Section: Resultsmentioning

confidence: 99%

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Qin

Kuang

et al. 2022

Adv Funct Materials

159

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“…3a), with a lower overpotential of 39 mV, while Zn|GF|Zn cell is short-circuited after 195 h. Although other studies in this area demonstrate good performances, the design in this work is more efficient and profound (Fig. 3b) [36][37][38][39][40][41][42][43][44][45][46][47]. Meanwhile, hysteresis voltage of Zn|UiO-66-GF-2.2|Zn cell is always lower than that of Zn|GF|Zn cell (Fig.…”

Section: Enhancements In Stability and Reversibility By Uio-66-gfmentioning

confidence: 88%

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

et al. 2022

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Aqueous zinc-ion batteries (AZIBs) are one of the promising energy storage systems, which consist of electrode materials, electrolyte, and separator. The first two have been significantly received ample development, while the prominent role of the separators in manipulating the stability of the electrode has not attracted sufficient attention. In this work, a separator (UiO-66-GF) modified by Zr-based metal organic framework for robust AZIBs is proposed. UiO-66-GF effectively enhances the transport ability of charge carriers and demonstrates preferential orientation of (002) crystal plane, which is favorable for corrosion resistance and dendrite-free zinc deposition. Consequently, Zn|UiO-66-GF-2.2|Zn cells exhibit highly reversible plating/stripping behavior with long cycle life over 1650 h at 2.0 mA cm−2, and Zn|UiO-66-GF-2.2|MnO2 cells show excellent long-term stability with capacity retention of 85% after 1000 cycles. The reasonable design and application of multifunctional metal organic frameworks modified separators provide useful guidance for constructing durable AZIBs.

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“…27 Moreover, Wang et al showed that adsorbed threonine can restrict the planar diffusion of Zn 2+ ions through steric effects, inducing dendrite-free Zn deposition. 28 Li et al recently reported that the preferential adsorption of 1-butyl-3-methylimidazolium cations on the (100) and (101) planes of Zn anodes forces Zn 2+ ions to deposit on the (002) plane, thus leading to the preferential growth of the (002) plane. 29 Despite their great progress, the cycle life of Zn anodes varies greatly depending on the selected electrolyte additives.…”

Section: Introductionmentioning

confidence: 99%

Selection criteria for electrical double layer structure regulators enabling stable Zn metal anodes

Huang

Zhao

Hao

et al. 2023

Energy Environ. Sci.

105

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Unveiling unique steric effect of threonine additive for highly reversible Zn anode

Cited by 101 publications

References 37 publications

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Building Metal‐Molecule Interface towards Stable and Reversible Zn Metal Anodes for Aqueous Rechargeable Zinc Batteries

Metal–Organic Frameworks Functionalized Separators for Robust Aqueous Zinc-Ion Batteries

Selection criteria for electrical double layer structure regulators enabling stable Zn metal anodes

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