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High strength hydrogels enable dendrite-free Zn metal anodes and high-capacity Zn–MnO<sub>2</sub> batteries <i>via</i> a modified mechanical suppression effect

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dc.abstract.enRechargeable aqueous zinc-ion batteries (RAZIBs) have some inherent advantages such as intrinsic safety, low-cost and theoretically high energy density, making them a current topic of interest. However, the phenomenon of zinc (Zn) dendrite growth at the anode results in the instability of RAZIBs and limits their real-world application. Herein, by employing a high strength hydrogel polymer electrolyte, the growth of dendritic Zn crystals is effectively eliminated through the mechanical suppression effect, resulting in a stable Zn anode that demonstrates dendrite-free plating/stripping with a long lifespan. Even under a high current density of 5 mA cm2 , the ZnkZn symmetric cell is shown to have a cyclic lifetime of longer than 1000 hours. Moreover, the stable cyclic performance of the Zn anode spawns a ZnkMnO2 battery with high capacity (4.8–1.9 mA h cm2 ) and long lifetime (500 cycles at 9.2 mA cm2 , 1C), which can meet the practical demands for portable devices. This work shows that high strength polymer gel electrolytes with internal energy dissipation mechanisms can overcome previous challenges that prevented practical utilization of RAZIBs. Together with the outstanding cyclic properties of the high capacity ZnkMnO2 batteries, this work provides a new pathway toward designing high energy density RAZIBs
dc.affiliationUniwersytet Warszawski
dc.contributor.authorHabazaki, Hiroki
dc.contributor.authorAoki, Yoshitaka
dc.contributor.authorKurokawa, Takayuki
dc.contributor.authorKing, Daniel R.
dc.contributor.authorZhu, Chunyu
dc.contributor.authorKitano, Sho
dc.contributor.authorKowalski, Damian
dc.contributor.authorTang, Chunmei
dc.contributor.authorXiong, Zetao
dc.contributor.authorHuang, Tianhong
dc.contributor.authorFadillah, Laras
dc.contributor.authorCui, Wei
dc.contributor.authorYang, Huijun
dc.contributor.authorZhu, Ruijie
dc.date.accessioned2024-01-25T03:28:20Z
dc.date.available2024-01-25T03:28:20Z
dc.date.issued2022
dc.description.financePublikacja bezkosztowa
dc.description.number6
dc.description.volume10
dc.identifier.doi10.1039/D1TA10079C
dc.identifier.issn2050-7488
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/108512
dc.identifier.weblinkhttp://pubs.rsc.org/en/content/articlepdf/2022/TA/D1TA10079C
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofJournal of Materials Chemistry A
dc.relation.pages3122-3133
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleHigh strength hydrogels enable dendrite-free Zn metal anodes and high-capacity Zn–MnO<sub>2</sub> batteries <i>via</i> a modified mechanical suppression effect
dc.typeJournalArticle
dspace.entity.typePublication