The novel mesoporous NiO/C microspheres have been synthesized, the process involves the first production of α-Ni(OH)₂/C precursors followed by thermal annealing at 400 °C under air. The prepared NiO/C composites were characterized by XRD, XPS, SEM, EDS and element mapping, and the synthesized samples show an ultrahigh discharge capacity of 134 mAh g⁻¹ at 5 A g⁻¹ in NiO–Zn battery. Moreover, the NiO–Zn battery exhibits a good cycling life and capacity retention about 85% after 1000 charge–discharge cycles. All these indicate that the synthesized NiO/C composites may be a good new positive material for alkaline Ni–Zn rechargeable battery.

已经合成了新型的介孔NiO / C微球，该过程涉及首先生产α-Ni（OH）₂ / C前体，然后在空气中于400°C进行热退火。通过XRD，XPS，SEM，EDS和元素图谱对制备的NiO / C复合材料进行了表征，合成样品在5A g ^-1的NiO-Zn电池中具有134 mAh g ^-1的超高放电容量。此外，NiO-Zn电池在1000次充放电循环后具有良好的循环寿命和约85％的容量保持率。所有这些表明，合成的NiO / C复合材料可能是碱性Ni-Zn可充电电池的一种很好的新型正极材料。