Polymeric Diaminophenazine with Spiral Architecture as Cathode Materials for Ultra‐Stable Aqueous Zinc‐Organic Batteries
Abstract
Abstract Pyrazine‐based organic electrode materials hold great promise for applications in aqueous zinc‐ion batteries (AZIBs), while developing cost‐effective organic molecules that exhibit both high electrochemical activity and long cycle life remains challenging. Herein, we report an organic polymer (p‐DAP) featuring alternating rigid‐flexible spiral structures for AZIBs. Synthesized from cost‐effective o‐phenylenediamine via thermal polymerization, p‐DAP integrates saturated alicyclic rings and pyrazine moieties to stabilize interlayer spacing and facilitate ion transport. The polymer achieves nearly 95% redox‐active sites utilization at 0.2 A g −1 , delivering 145.2 mAh g −1 at 10 A g −1 with a capacity retention of 78.9% over 136 900 cycles. Notably, it maintains a capacity retention of 97.7% after 3550 cycles at –40 °C. Experimental and theoretical studies reveal a proton‐dominated charge storage mechanism. This work offers a promising strategy for designing durable organic electrodes for high‐performance AZIBs.
Article Details
Authors (19)
Suyan Niu
Lingfei Zhao
Yao Wang
Qi Luo
Guangdong Provincial Key Laboratory of Chinese Medicine Pharmaceutics, School of Traditional Chinese Medicine
Huichun Xue
Department of Chemistry Northeastern University Shenyang 110819 P.R. China
Na Ju
Yiming Wang
Lin Zhu
Beibei Xu
Limeng Sun
Joint International Laboratory on Environmental and Energy Frontier Materials School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 P.R. China
Yufei Zhao
State Key Laboratory of Chemical Resource Engineering
Hao Liu
James Bouwer
Molecular Horizons and School of Chemistry and Molecular Bioscience Illawarra Health and Medical Research Institute University of Wollongong Wollongong NSW 2522 Australia
Yun‐Xiao Wang
Institute of Energy Materials Science (IEMS) University of Shanghai for Science and Technology Shanghai P. R. China
Shi‐Xue Dou
Institute of Energy Materials Science (IEMS) University of Shanghai for Science and Technology Shanghai P. R. China
Hua‐Kun Liu
Institute of Energy Materials Science (IEMS) University of Shanghai for Science and Technology Shanghai P. R. China
Guang‐Wen Xu
Key Laboratory on Resources Chemicals and Materials of Ministry of Education Shenyang University of Chemical Technology Shenyang 110142 P.R. China
Hong‐bin Sun
Department of Chemistry Northeastern University Shenyang 110819 P.R. China
Wei‐Hong Lai
Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative Materials Fudan University Shanghai P. R. China