期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 832, 期 -, 页码 69-74出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.10.051
关键词
Aqueous zinc ion battery; Cathode material; Composite; Solvothermal method
资金
- Natural Science Foundation of Hunan Province [2018JJ3415]
- Key Planned Science and Technology Project of Xiangxi Tujia AMP
- Miao Autonomous Prefecture [2018GX2001]
- Program of Youth Talent Support for Hunan Province [2018RS3098]
- National Natural Science Foundation of China [51704124, 51762017, 51662010, 51364009, 51262008, 51472107, 51672104]
A novel composite material of ZnMn2O4/Mn2O3 is fabricated via a facile surfactant-assisted solvothermal method, followed by an annealing process at 600 degrees C in air for 4 h. When further evaluated as a cathode for aqueous rechargeable zinc ion batteries (ARZIBs) for the first time, it delivers an initial discharge capacity of up to 82.6 mAh/g at 0.5 A/g just using 1 mol/L ZnSO4 as the electrolyte, and the amazing reversible capacity of 111.9 mAh/g can be achieved even after 300 cycles, much higher than the initial one. As the current density increases to 3.2 A/g, it also exhibits a high capacity as much as 42.1 mAh/g. The superior cycleability and remarkable rate performance are attributed to the synergistic effect, the ultrafast ion transportation characteristic and the smaller self-discharge phenomenon of ZnMn2O4 and Mn2O3. Thus, the work gives a new insight into developing new-type of cathode materials for large-scale application of ARZIBs with low cost, high safety and large power density.
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