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  Proton-selective coating enables fast-kinetics high-mass-loading cathodes for sustainable zinc batteries

Guo, Q., Li, W., Li, X., Zhang, J., Sabaghi, D., Zhang, J., et al. (2024). Proton-selective coating enables fast-kinetics high-mass-loading cathodes for sustainable zinc batteries. Nature Communications, 15: 2139. doi:10.1038/s41467-024-46464-9.

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Guo, Quanquan1, Autor           
Li, Wei2, Autor
Li, Xiaodong1, Autor                 
Zhang, Jiaxu2, Autor
Sabaghi, Davood2, Autor
Zhang, Jianjun2, Autor
Zhang, Bowen2, Autor
Li, Dongqi2, Autor
Du, Jingwei2, Autor
Chu, Xingyuan2, Autor
Chung, Sein2, Autor
Cho, Kilwon2, Autor
Nguyen, Nguyen Ngan1, Autor
Liao, Zhongquan2, Autor
Zhang, Zhen2, Autor
Zhang, Xinxing2, Autor
Schneider, Grégory F.2, Autor
Heine, Thomas2, Autor
Yu, Minghao2, Autor
Feng, Xinliang1, Autor                 
Affiliations:
1Department of Synthetic Materials and Functional Devices (SMFD), Max Planck Institute of Microstructure Physics, Max Planck Society, ou_3316580              
2External Organizations, ou_persistent22              

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 Zusammenfassung: The pressing demand for sustainable energy storage solutions has spurred the burgeoning development of aqueous zinc batteries. However, kinetics-sluggish Zn2+ as the dominant charge carriers in cathodes leads to suboptimal charge-storage capacity and durability of aqueous zinc batteries. Here, we discover that an ultrathin two-dimensional polyimine membrane, featured by dual ion-transport nanochannels and rich proton-conduction groups, facilitates rapid and selective proton passing. Subsequently, a distinctive electrochemistry transition shifting from sluggish Zn2+-dominated to fast-kinetics H+-dominated Faradic reactions is achieved for high-mass-loading cathodes by using the polyimine membrane as an interfacial coating. Notably, the NaV3O8·1.5H2O cathode (10 mg cm−2) with this interfacial coating exhibits an ultrahigh areal capacity of 4.5 mAh cm−2 and a state-of-the-art energy density of 33.8 Wh m−2, along with apparently enhanced cycling stability. Additionally, we showcase the applicability of the interfacial proton-selective coating to different cathodes and aqueous electrolytes, validating its universality for developing reliable aqueous batteries.

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 Datum: 2024-03-082024-03-08
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1038/s41467-024-46464-9
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Titel: Nature Communications
  Kurztitel : Nat. Commun.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Nature Publishing Group
Seiten: - Band / Heft: 15 Artikelnummer: 2139 Start- / Endseite: - Identifikator: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723