Breakthrough in Aqueous Zn-ion Batteries Made by Wu Peiyi & Jiao Yucong’s Research Team


Recently, the research team led by Prof. Wu Peiyi and Research Fellow Jiao Yucong from the College of Chemistry, Chemical Engineering and Biotechnology (CCEB) has made progress in flexible aqueous zinc-ion batteries. The research result was published in Angewandte Chemie International Edition entitled Proton-Reservoir Hydrogel Electrolyte for Long-Term Cycling Zn/PANI Batteries in Wide Temperature Range. The first author is Feng Doudou, a Ph.D. student of Donghua University, Class of 2020; the corresponding authors are Wu Peiyi and Jiao Yucong; Donghua University is the only affiliation.

The research team proposed a proton-supplying strategy by polymeric acid hydrogel for enhancing the electrochemical performance of Zn/polyaniline (PANI) batteries in a wide temperature range. Aqueous Zn/PANI batteries are a highly promising energy storage device due to they are safe, low-cost, and environmentally friendly. Besides, the team developed polymeric acid hydrogel electrolyte (PAGE), thus providing a new way to explore high-performance aqueous zinc-ion battery systems.

Fig. 1 Schematic illustrations of the redox reaction mechanism for Zn/PANI battery with PAGE

Fig. 2 Performance of the Zn/PANI battery at low temperature

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