Journal
JOURNAL OF ENERGY STORAGE
Volume 27, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2019.101139
Keywords
OMS-2; Cathode materials; Zinc ion batteries
Categories
Funding
- Natural Science Foundation of China [21371180]
- Hunan Provincial Science and Technology Plan Project [2017TP1001]
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The manganese-based cathode of zinc ion batteries (ZIBs) has been focused owing to their high energy density and voltage. However, the electrostatic repulsion and large ionic hydrated radius of Zn2+ leads to volume expansion and capacity attenuation of manganese-based electrode. In this work, we report a ZIBs cathode of OMS-2 nanodendrite to utilize K+ intercalation and structural properties to solve these problems. The Zn/OMS-2 nanodendrite battery maintains an average charge and discharge voltages of 1.6 V and 1.3 V, a high energy density of 109 W h kg(-1), and a capacity retention ratio of 74% at 100 mA g(-1) after 300 cycles. Moreover, the OMS-2 nanodendrite electrode has an excellent dynamic performance. These properties have potential competitiveness in the energy storage field.
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