Polyhydroxylated organic molecular additives for durable aqueous zinc battery
The large-scale deployment of aqueous Zn-ion batteries is hindered by Zn anode instability including surface corrosion, hydrogen gas evolution, and irregular Zn deposition. To tackle these challenges, a polyhydroxylated organic molecular additive, trehalose, is incorporated to refine the solvation s...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/173952 |
| _version_ | 1811691686769721344 |
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| author | Liu, Huan Xin, Zijun Cao, Bin Xu, Zhijing Xu, Bin Zhu, Qizhen Yang, Jin-Lin Zhang, Bao Fan, Hong Jin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Liu, Huan Xin, Zijun Cao, Bin Xu, Zhijing Xu, Bin Zhu, Qizhen Yang, Jin-Lin Zhang, Bao Fan, Hong Jin |
| author_sort | Liu, Huan |
| collection | NTU |
| description | The large-scale deployment of aqueous Zn-ion batteries is hindered by Zn anode instability including surface corrosion, hydrogen gas evolution, and irregular Zn deposition. To tackle these challenges, a polyhydroxylated organic molecular additive, trehalose, is incorporated to refine the solvation structure and promote planar Zn deposition. Within solvation structure regions involving trehalose, the hydroxy groups participate in the reconstruction of hydrogen bond networks, which increases the overpotential for water decomposition reaction. Moreover, at the Zn metal–molecule interface, the chemisorption of trehalose onto the surface of the zinc anode enhances corrosion resistance and facilitates the deposition of zinc in a planar manner. The optimized electrolyte significantly improves Zn striping/plating reversibility and maintains stable potentials over 1600 h at 5 mA cm−2 with a cutoff capacity of 1 mA h cm−2 in symmetric cells. When combined with the MnO2 cathode, the assembled coin cell retains ≈89% of its capacity after 1000 cycles. This organic molecule additive, emphasizing the role of polyhydroxylated organic molecules in fine-tuning solvation structures and anode/electrolyte interfaces, holds promise for enhancing various aqueous metal batteries. |
| first_indexed | 2024-10-01T06:23:50Z |
| format | Journal Article |
| id | ntu-10356/173952 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:23:50Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1739522024-03-11T15:35:50Z Polyhydroxylated organic molecular additives for durable aqueous zinc battery Liu, Huan Xin, Zijun Cao, Bin Xu, Zhijing Xu, Bin Zhu, Qizhen Yang, Jin-Lin Zhang, Bao Fan, Hong Jin School of Physical and Mathematical Sciences Physics Aqueous batteries Electrolyte additives The large-scale deployment of aqueous Zn-ion batteries is hindered by Zn anode instability including surface corrosion, hydrogen gas evolution, and irregular Zn deposition. To tackle these challenges, a polyhydroxylated organic molecular additive, trehalose, is incorporated to refine the solvation structure and promote planar Zn deposition. Within solvation structure regions involving trehalose, the hydroxy groups participate in the reconstruction of hydrogen bond networks, which increases the overpotential for water decomposition reaction. Moreover, at the Zn metal–molecule interface, the chemisorption of trehalose onto the surface of the zinc anode enhances corrosion resistance and facilitates the deposition of zinc in a planar manner. The optimized electrolyte significantly improves Zn striping/plating reversibility and maintains stable potentials over 1600 h at 5 mA cm−2 with a cutoff capacity of 1 mA h cm−2 in symmetric cells. When combined with the MnO2 cathode, the assembled coin cell retains ≈89% of its capacity after 1000 cycles. This organic molecule additive, emphasizing the role of polyhydroxylated organic molecules in fine-tuning solvation structures and anode/electrolyte interfaces, holds promise for enhancing various aqueous metal batteries. Submitted/Accepted version This work was supported by the National Natural Science Foundation of China (52 273 274). H.L. also acknowledges financial support from the China Scholarship Council (202 008 610 034)). 2024-03-07T08:50:41Z 2024-03-07T08:50:41Z 2024 Journal Article Liu, H., Xin, Z., Cao, B., Xu, Z., Xu, B., Zhu, Q., Yang, J., Zhang, B. & Fan, H. J. (2024). Polyhydroxylated organic molecular additives for durable aqueous zinc battery. Advanced Functional Materials, 34(4), 2309840-. https://dx.doi.org/10.1002/adfm.202309840 1616-301X https://hdl.handle.net/10356/173952 10.1002/adfm.202309840 2-s2.0-85172247394 4 34 2309840 en Advanced Functional Materials © 2023 Wiley-VCH GmbH. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1002/adfm.202309840. application/pdf |
| spellingShingle | Physics Aqueous batteries Electrolyte additives Liu, Huan Xin, Zijun Cao, Bin Xu, Zhijing Xu, Bin Zhu, Qizhen Yang, Jin-Lin Zhang, Bao Fan, Hong Jin Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title | Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title_full | Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title_fullStr | Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title_full_unstemmed | Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title_short | Polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| title_sort | polyhydroxylated organic molecular additives for durable aqueous zinc battery |
| topic | Physics Aqueous batteries Electrolyte additives |
| url | https://hdl.handle.net/10356/173952 |
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