Pristine Na₃Fe_0.5V_1.5(PO₄)₃ and carbon-coated Na₃Fe_0.5V_1.5(PO₄)₃ nano-particles are synthesized by one-step solid-phase reaction method. The full battery based on Na₃Fe_0.5V_1.5(PO₄)₃@C nano-particles as cathode and commercial hard carbon as anode outputs a high working voltage about 3.3 V and exhibits superior-rate performance. While the rate increases from 0.5 to 1, 2 and 5 C, the discharge capacity of full battery slightly decreases from 110 to 94, 88, 79 mA h g⁻¹ gradually. Moreover, it shows excellent cycle stability with a capacity retention of 93.8% after 200 cycles at 0.5 C.

通过一步固相反应法合成了原始的Na ₃ Fe _0.5 V _1.5（PO ₄）₃和碳包覆的Na ₃ Fe _0.5 V _1.5（PO ₄）₃纳米颗粒。基于Na ₃ Fe _0.5 V _1.5（PO ₄）₃的完整电池@C纳米粒子作为阴极，商用硬质碳作为阳极，可输出约3.3 V的高工作电压，并具有较高的速率性能。当速率从0.5 C增加到1、2和5 C时，充满电的电池的放电容量从110 mA h g ^-1逐渐减小到94、88、79 mA h g ^-1。而且，它显示出出色的循环稳定性，在0.5 C下200次循环后的容量保持率为93.8％。