Neutral aqueous rechargeable zinc-ion batteries are receiving continuous attention because of their advantages of low cost, high safety, environmental friendliness, and high performance, which are difficult to attain with current organic electrolyte-based batteries. In this work, a high-performance aqueous Zn-ion battery based on the organic pigment 3,4,9,10-perylene-tetracarboxylic acid dianhydride (PTCDA) is developed. An electrochemical test shows that the PTCDA possesses a high specific discharge capacity of 136 mAh·g−1 at a current density of 10 mA·g−1. Moreover, the PTCDA cathode displays a good rate performance (77 mAh·g−1 at 1 A·g−1) and an excellent cycle life with a capacity retention of 80% after 2000 cycles. Furthermore, electrochemical analysis and structural characterization originally reveal that the PTCDA cathode undergoes a sequential Zn2+ and H3O+ insertion and extraction process, which is reversible and cycling stable. Graphical abstract: [Figure not available: see fulltext.]
CITATION STYLE
Yu, F., Wang, Y., Liu, Y., Hui, H. Y., Wang, F. X., Li, J. F., & Wang, Q. (2022, July 1). An aqueous rechargeable zinc-ion battery on basis of an organic pigment. Rare Metals. University of Science and Technology Beijing. https://doi.org/10.1007/s12598-021-01941-8
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