Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery
Abstract Zinc (Zn)-based batteries have been persistently challenged by the critical issue of inhomogeneous zinc deposition/stripping process on substrate surface. Herein, we reveal that zinc electrodeposition behaviors dramatically improved through the introduction of highly zincophilic copper oxid...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56011-9 |
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| author | Jin Seong Cha Sanghyeon Park Noh-Uk Seo Yun-Chan Kang Chan-Woo Lee Jung Hoon Yang |
| author_facet | Jin Seong Cha Sanghyeon Park Noh-Uk Seo Yun-Chan Kang Chan-Woo Lee Jung Hoon Yang |
| author_sort | Jin Seong Cha |
| collection | DOAJ |
| description | Abstract Zinc (Zn)-based batteries have been persistently challenged by the critical issue of inhomogeneous zinc deposition/stripping process on substrate surface. Herein, we reveal that zinc electrodeposition behaviors dramatically improved through the introduction of highly zincophilic copper oxide nanoparticles (CuO NPs). Strong electronic redistribution between Zn and CuO explains the high Zn affinity on CuO, with negligible nucleation overpotential. Additionally, CuO exhibits remarkable electron-accepting and -donating capabilities in electron-rich and electron-deficient environments, resembling a sponge. This ‘Electron Sponge’ effect emerges from stable Zn-O bonding in CuO, enhancing electron duality in the Zn-O bond region. This unique strategy is pivotal in mitigating dendritic growth, fostering dendrite-free zinc-based flow batteries with enhanced rate performance and cyclability. It presents significant performance with not only high energy density (180 Wh L−1) but also the long cycle stability (> 2500 cycles) at high current density (140 mA cm−2). |
| format | Article |
| id | doaj-art-683d76bd40c74ab8a1dcf8795c56b645 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-683d76bd40c74ab8a1dcf8795c56b6452025-01-26T12:42:19ZengNature PortfolioNature Communications2041-17232025-01-0116111210.1038/s41467-025-56011-9Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow batteryJin Seong Cha0Sanghyeon Park1Noh-Uk Seo2Yun-Chan Kang3Chan-Woo Lee4Jung Hoon Yang5Energy Storage Research Department, Korea Institute of Energy Research (KIER)Energy AI & Computational Science Laboratory, Korea Institute of Energy Research (KIER)Energy Storage Research Department, Korea Institute of Energy Research (KIER)Department of Materials Science and Engineering, Korea UniversityEnergy Storage Research Department, Korea Institute of Energy Research (KIER)Energy Storage Research Department, Korea Institute of Energy Research (KIER)Abstract Zinc (Zn)-based batteries have been persistently challenged by the critical issue of inhomogeneous zinc deposition/stripping process on substrate surface. Herein, we reveal that zinc electrodeposition behaviors dramatically improved through the introduction of highly zincophilic copper oxide nanoparticles (CuO NPs). Strong electronic redistribution between Zn and CuO explains the high Zn affinity on CuO, with negligible nucleation overpotential. Additionally, CuO exhibits remarkable electron-accepting and -donating capabilities in electron-rich and electron-deficient environments, resembling a sponge. This ‘Electron Sponge’ effect emerges from stable Zn-O bonding in CuO, enhancing electron duality in the Zn-O bond region. This unique strategy is pivotal in mitigating dendritic growth, fostering dendrite-free zinc-based flow batteries with enhanced rate performance and cyclability. It presents significant performance with not only high energy density (180 Wh L−1) but also the long cycle stability (> 2500 cycles) at high current density (140 mA cm−2).https://doi.org/10.1038/s41467-025-56011-9 |
| spellingShingle | Jin Seong Cha Sanghyeon Park Noh-Uk Seo Yun-Chan Kang Chan-Woo Lee Jung Hoon Yang Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery Nature Communications |
| title | Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery |
| title_full | Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery |
| title_fullStr | Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery |
| title_full_unstemmed | Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery |
| title_short | Zincophilic CuO as electron sponge to facilitate dendrite-free zinc-based flow battery |
| title_sort | zincophilic cuo as electron sponge to facilitate dendrite free zinc based flow battery |
| url | https://doi.org/10.1038/s41467-025-56011-9 |
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