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Initiating a Reversible Aqueous Zn/Sulfur Battery through a “Liquid Film”
Abstract
Sulfur cathodes have been under intensive study in various systems, such as Li/S, Na/S, Mg/S, and Al/S batteries. However, to date, Zn/S chemistry has never been reported. The first reliable aqueous Zn/polysulfide system activated by a “liquid film” comprising 4‐(3‐butyl‐1‐imidazolio)‐1‐butanesulfoni ionic liquid (IL) encapsulated within PEDOT:PSS. CF 3 SO 3− anions in the IL operating as Zn 2+‐transfer channels is reported. Moreover, the PEDOT:PSS network retains the IL, which renders Zn 2+‐transfer channels and a polysulfide cathode with enhanced structural stability. The Zn/polysulfide system delivers extraordinary capacity of 1148 mAh g−1 and overwhelming energy density of 724.7 Wh kg−1cathode at 0.3 Ag−1. During the discharging phase, S 62− is dominantly reduced by Zn to S 2− (S 6 → S 2−). During the charging phase, these short chains are oxidized to form long‐chain ZnxLiyS 3‐6. A further optimized high‐concentrated salt electrolyte is used to improve the reversibility of the battery, demonstrating an extended lifetime over 1600 cycles at 1 Ag−1 with a capacity retention of 204 mAh g−1. This facile approach and the superior performance of the developed aqueous Zn/S chemistry provide a new platform for sulfur‐based battery and potentially solve the problems of other metal/sulfur batteries.
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Cites
“Water-in-salt” electrolyte enables high-voltage aqueous lithium-ion chemistries
Suo, L., Borodin, O., Gao, T., Olguin, M., Ho, J., Fan, X., Luo, C., Wang, C., & Xu, K. (2015) · Science · doi:10.1126/science.aab1595 · Cited by 3,821
Identifying the components of the solid–electrolyte interphase in Li-ion batteries
Wang, L., Menakath, A., Han, F., Wang, Y., Zavalij, P. Y., Gaskell, K. J., Borodin, O., Iuga, D., Brown, S. P., Wang, C., et al. (2019) · Nature Chemistry · doi:10.1038/s41557-019-0304-z · Cited by 514
Cited by
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
Sulfur-Based Aqueous Batteries: Electrochemistry and Strategies
Liu, J., Zhou, W., Zhao, R., Yang, Z., Li, W., Chao, D., Qiao, S.-Z., & Zhao, D. (2021) · Journal of the American Chemical Society · doi:10.1021/jacs.1c06923 · Cited by 313
Historical development and novel concepts on electrolytes for aqueous rechargeable batteries
Chen, S., Zhang, M., Zou, P., Sun, B., & Tao, S. (2022) · Energy & Environmental Science · doi:10.1039/d2ee00004k · Cited by 308
Energy Storage Chemistry in Aqueous Zinc Metal Batteries
Wan, F., Zhou, X., Lu, Y., Niu, Z., & Chen, J. (2020) · ACS Energy Letters · doi:10.1021/acsenergylett.0c02028 · Cited by 267
Metadata
- Authors
- Zhao, Y., Wang, D., Li, X., Yang, Q., Guo, Y., Mo, F., Li, Q., Peng, C., Li, H., & Zhi, C.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2020-06-28
- Volume
- 32
- Issue
- 32
- Pages
- e2003070-e2003070
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W3037576377
- Cited by
- 188
- References
- 2
- FWCI
- 7.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhao, Y., Wang, D., Li, X., Yang, Q., Guo, Y., Mo, F., Li, Q., Peng, C., Li, H., & Zhi, C. (2020). Initiating a Reversible Aqueous Zn/Sulfur Battery through a “Liquid Film”. Advanced Materials. https://doi.org/10.1002/adma.202003070
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