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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202200131
|2 doi
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|a pubmed24n1129.xml
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|a (DE-627)NLM338870660
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|a (NLM)35357047
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|a DE-627
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|a eng
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|a Zhou, Jinqiu
|e verfasserin
|4 aut
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|a Diminishing Interfacial Turbulence by Colloid-Polymer Electrolyte to Stabilize Zinc Ion Flux for Deep-Cycling Zn Metal Batteries
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 26.05.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The fluidity of aqueous electrolytes and undesired H2 evolution reaction (HER) can cause severe interfacial turbulence in aqueous Zn metal batteries (ZMBs) at deep cycling with high capacities and current densities, which would further perturb ion flux and aggravate Zn dendrite growth. In this study, a colloid-polymer electrolyte (CPE) with special colloidal phase and suppressed HER is designed to diminish interfacial turbulence and boost deep Zn electrochemistry. Density functional theory calculations confirm that the quantitative migratory barriers of Zn2+ along the transport pathway in CPE demonstrate much smaller fluctuations compared with normal aqueous electrolyte, indicating that CPE can effectively diminish interfacial disturbance. Benefitting from this, the Zn2+ ion flux can be homogenized and deposited evenly on the electrode, which is confirmed by finite element simulation and in situ Raman measurements. Consequently, CPE enables stable operation of Zn//Cu cells even with high capacity (up to 20 mAh cm-2 ) and current density (up to 100 mA cm-2 ) and Zn//Na5 V12 O32 full-cell with N/P ratio as low as 1 (i.e., 100% Zn utilization). It is believed that this strategy opens a brand-new avenue based on CPE toward boosting deep-cycling electrochemistry in ZMBs and even other aqueous energy-storage applications
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|a Journal Article
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|a Zn metal batteries
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|a colloid-polymers
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|a deep cycling
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|a interfacial turbulence
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|a zinc ion flux
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|a Zhang, Lifang
|e verfasserin
|4 aut
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|a Peng, Mingji
|e verfasserin
|4 aut
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|a Zhou, Xi
|e verfasserin
|4 aut
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|a Cao, Yufeng
|e verfasserin
|4 aut
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|a Liu, Jie
|e verfasserin
|4 aut
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|a Shen, Xiaowei
|e verfasserin
|4 aut
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|a Yan, Chenglin
|e verfasserin
|4 aut
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| 700 |
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|a Qian, Tao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 21 vom: 15. Mai, Seite e2200131
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:21
|g day:15
|g month:05
|g pages:e2200131
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|u http://dx.doi.org/10.1002/adma.202200131
|3 Volltext
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