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Chaotropic anion based “water-in-salt” electrolyte realizes a high voltage Zn-graphite dual-ion battery
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SYSNO ASEP 0553418 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chaotropic anion based “water-in-salt” electrolyte realizes a high voltage Zn-graphite dual-ion battery Author(s) Zafar, Zahid Ali (FZU-D) ORCID
Abbas, Ghulam (UFCH-W) ORCID
Knížek, Karel (FZU-D) RID, ORCID
Šilhavík, Martin (FZU-D) ORCID
Kumar, Prabhat (FZU-D) ORCID
Jiříček, Petr (FZU-D) RID, ORCID, SAI
Houdková, Jana (FZU-D) RID, ORCID
Frank, Otakar (UFCH-W) RID, ORCID
Červenka, Jiří (FZU-D) RID, ORCIDNumber of authors 9 Source Title Journal of Materials Chemistry A. - : Royal Society of Chemistry - ISSN 2050-7488
Roč. 10, č. 4 (2022), s. 2064-2074Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords battery ; water-in-salt electrolyte ; zinc perchlorate ; graphite ; zinc Subject RIV CG - Electrochemistry OECD category Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Subject RIV - cooperation J. Heyrovsky Institute of Physical Chemistry - Electrochemistry R&D Projects EF16_026/0008382 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA19-23986S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 ; UFCH-W - RVO:61388955 UT WOS 000741535000001 EID SCOPUS 85123722046 DOI 10.1039/d1ta10122f Annotation This work realizes a high-voltage and low-cost aqueous Zn–graphite dual-ion battery based on a Zn(ClO4)2 water-in-salt electrolyte with a wide electrochemical window of 2.80 V. The implementation of the supersaturated Zn(ClO4)2 water-in-salt electrolyte containing strong chaotropic ClO4− anions expands the oxidative stability of the aqueous electrolyte beyond 1.65 V vs. Ag/AgCl or 2.60 V vs. Zn/Zn2+, and facilitates reversible plating/stripping of Zn2+ with a low overpotential of <50 mV at 1 mAcm−2 and a high upper cut-off potential of 2.5 V vs. Zn/Zn2+. Consequently, the Zn–graphite dual-ion battery delivers a maximum discharge capacity of 45 mAhg−1 at 100 mAg−1 with a mean discharge voltage of ∼1.95 V and cycle life of over 500 cycles. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1039/d1ta10122f
Number of the records: 1