Regulation of desolvation process and dense electrocrystalization behavior for stable Zn metal anode

Luo, Xiongbin; Zhou, Miao; Luo, Zhigao; Shi, Tianxi; Li, Lanyan; Xie, Xuefang; Sun, Yanyan; Cao, Xinxin; Liang, Shuquan; Fang, Guozhao

doi:10.1016/j.ensm.2023.03.002

Cited by 75 publications

(31 citation statements)

References 49 publications

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“…In addition, the lower adsorption energy of Zr 4+ than Zn 2+ demonstrates that Zr 4+ can render the electrostatic shielding effect for Zn 2+ uniform deposition. 44–47 Moreover, the adsorption energy of Zr 4+ on the 002 crystal plane (−4.80 eV) is higher than 101 (−5.93 eV) and 100 (−5.62 eV), respectively, further confirming that Zn 2+ is much easier to deposit and nucleate on the 002 crystal plane, instead of the most preferred orientation planes of 101 and 100, in accordance with the XRD and SEM results (Fig. 2).…”

Section: Resultssupporting

confidence: 83%

Manipulating Zn 002 deposition plane with zirconium ion crosslinked hydrogel electrolyte toward dendrite free Zn metal anodes

Cheng,

Jiao,

2023

Energy Environ. Sci.

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Section: Resultssupporting

confidence: 83%

Manipulating Zn 002 deposition plane with zirconium ion crosslinked hydrogel electrolyte toward dendrite free Zn metal anodes

Cheng,

Jiao,

2023

Energy Environ. Sci.

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“…On the anode side, the byproducts caused by the reaction between water and Zn anode passivated the anode surface to restrict the interfacial transport of Zn 2+ , subsequently resulting in a capacity drop. [ 63–66 ] In contrast, due to the confined free water and the protection of the SEI layer, the capacity retention in AEE was much higher than that in AqE, indicating the effective enhancement of stability and sustainability endowed by AEE.…”

Section: Resultsmentioning

confidence: 99%

Urea‐Modified Ternary Aqueous Electrolyte With Tuned Intermolecular Interactions and Confined Water Activity for High‐Stability and High‐Voltage Zinc‐Ion Batteries

Wang

Diao

Burrow

et al. 2023

Adv Funct Materials

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Aqueous zinc‐ion batteries (ZIBs) gain attention as promising energy storage devices due to their high safety. However, the narrow electrochemical window and unfavorable side reactions induced by water decomposition restrict their development. Thus, confining water activity to enhance stability and enlarge the electrochemical window is required. Herein, a 2.9 m (mol kgsolvent−1) Zn(ClO4)2−CO(NH2)2−H2O ternary aqueous eutectic electrolyte is prepared with restricted water activity at room temperature. The strong intermolecular interactions between CO(NH2)2 and H2O decrease the free H2O molecules and reduce their activity to suppress the parasitic reactions. Compared to conventional aqueous electrolytes, this urea‐modified electrolyte exhibits similar ionic conductivity (6.83 mS cm−1) and viscosity (29.5 mPa s) but with a significantly expanded electrochemical stability window (2.6 V) than the conventional one (1.7 V). Additionally, the preferential adsorption and reduction of urea molecules on the zinc surface mediate the formation of an organic solid electrolyte interphase, which passivates the anode and facilitates homogeneous zinc deposition. As a result, this ternary aqueous electrolyte enables high‐voltage zinc/vanadium batteries with a capacity of 125 mAh g−1 for 300 cycles at 5 A g−1. This finding demonstrates a low‐cost and practicable approach for realizing stable aqueous zinc‐ion batteries with an enlarged electrochemical stability window.

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“…4b). According to the classical nucleation theory, a higher overpotential ( η ) will result in a smaller critical nucleation size ( r crit ) for zinc, and their relationship follows the following equation: 48 where V m is the molar volume of the deposit, γ NE is the deposit-electrolyte interfacial free energy, z is the valence of electrodepositing ions, η is the nucleation overpotential, and F is Faraday's constant. Therefore, DMA, by forming strong coordination with zinc ions, leads to a finer deposition of zinc, thereby partially retarding the growth rate of dendrites.…”

Section: Resultsmentioning

confidence: 99%

Regulating the solvation structure with N,N-dimethylacetamide co-solvent for high-performance zinc-ion batteries

Li,

Feng,

Yin

et al. 2023

J. Mater. Chem. A

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Regulation of desolvation process and dense electrocrystalization behavior for stable Zn metal anode

Cited by 75 publications

References 49 publications

Manipulating Zn 002 deposition plane with zirconium ion crosslinked hydrogel electrolyte toward dendrite free Zn metal anodes

Manipulating Zn 002 deposition plane with zirconium ion crosslinked hydrogel electrolyte toward dendrite free Zn metal anodes

Urea‐Modified Ternary Aqueous Electrolyte With Tuned Intermolecular Interactions and Confined Water Activity for High‐Stability and High‐Voltage Zinc‐Ion Batteries

Regulating the solvation structure with N,N-dimethylacetamide co-solvent for high-performance zinc-ion batteries

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