Boosting the Cyclic Stability of Aqueous Zinc-Ion Battery Based on Al-Doped V10O24·12H2O Cathode Materials

• DOI: 10.1021/acsami.9b05362
• Publication Date: 2019-05-30T16:16:58Z
• Authors: Qian li; Tongye Wei; Kaixuan Ma; Gongzheng Yang; Chengxin Wang
• Keywords: 0103 physical sciences; 02 engineering and technology; 0210 nano-technology; 7. Clean energy; 01 natural sciences; 0104 chemical sciences

Rechargeable aqueous zinc-ion batteries (ZIBs) are considered an alternative energy storage system to lithium-ion battery because of its low price and high safety. However, the development is limited by positive materials, which usually show poor cycling life strong electrostatic interaction between divalent Zn2+ ions crystal structure materials. Developing a cathode material with stable upon still big challenge for researchers worldwide. Doping foreign elements, can solidify lattice, effective approach improve structural stability hardly any research based on doping method ZIBs has been reported. Here, we develop Al-doped layer V10O24·12H2O as ZIBs. Benefitting from layered structure, exhibited excellent 98% capacity retention after 3000 cycles, much higher than 65% in pure V10O24·12H2O. The great enhancement cycle performance indicates that Al-doping help build advanced zinc-storage system.