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A Long‐Cycle‐Life Self‐Doped Polyaniline Cathode for Rechargeable Aqueous Zinc Batteries
Abstract
Rechargeable aqueous zinc batteries are promising energy‐storage systems for grid applications. Highly conductive polyaniline (PANI) is a potential cathode, but it tends to deactivate in electrolytes with low acidity (i.e. pH >1) owing to deprotonation of the polymer. In this study, we synthesized a sulfo‐self‐doped PANI electrode by a facile electrochemical copolymerization process. The −SO 3− self‐dopant functions as an internal proton reservoir to ensure a highly acidic local environment and facilitate the redox process in the weakly acidic ZnSO 4 electrolyte. In a full zinc cell, the self‐doped PANI cathode provided a high capacity of 180 mAh g−1, excellent rate performance of 70 % capacity retention with a 50‐fold current‐density increase, and a long cycle life of over 2000 cycles with coulombic efficiency close to 100 %. Our study opens a door for the use of conducting polymers as cathode materials for high‐performance rechargeable zinc batteries.
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Cites
Armand, M., & Tarascon, J.-M. (2008) · Nature · doi:10.1038/451652a · Cited by 19,612
Cited by
Voltage issue of aqueous rechargeable metal-ion batteries
Liu, Z., Huang, Y., Huang, Y., Yang, Q., Li, X., Huang, Z., & Zhi, C. (2020) · Chemical Society Reviews · doi:10.1039/c9cs00131j · Cited by 783
Advances and Perspectives of Cathode Storage Chemistry in Aqueous Zinc-Ion Batteries
Wang, X., Zhang, Z., Xi, B., Chen, W., Jia, Y., Feng, J., & Xiong, S. (2021) · ACS Nano · doi:10.1021/acsnano.1c01389 · Cited by 531
Xie, J., & Zhang, Q. (2019) · Small · doi:10.1002/smll.201805061 · Cited by 429
Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery
Khayum M, A., Ghosh, M., Vijayakumar, V., Halder, A., Nurhuda, M., Kumar, S., Addicoat, M., Kurungot, S., & Banerjee, R. (2019) · Chemical Science · doi:10.1039/c9sc03052b · Cited by 322
Electrolytes in Organic Batteries
Li, M., Hicks, R. P., Chen, Z., Luo, C., Guo, J., Wang, C., & Xu, Y. (2023) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00374 · Cited by 303
Metadata
- Authors
- Shi, H., Ye, Y., Liu, K., Song, Y., & Sun, X.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2018-11-14
- Volume
- 57
- Issue
- 50
- Pages
- 16359-16363
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2897910607
- Cited by
- 520
- References
- 1
- FWCI
- 16.93
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shi, H., Ye, Y., Liu, K., Song, Y., & Sun, X. (2018). A Long‐Cycle‐Life Self‐Doped Polyaniline Cathode for Rechargeable Aqueous Zinc Batteries. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201808886
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