Anionic defect (oxygen vacancies)-enriched ZnMn₂O₄ nanorods (OZMO) were manufactured through a facile coprecipitation/chemical reduction route. The synergetic mechanism of rich oxygen vacancies, abundant mesopores, and prominent pseudocapacitance endows the OZMO nanorods with long-term chemical durability for high-efficient lithium/sodium storage. When evaluated as anodes for lithium-ion batteries, the OZMO electrode exhibits a conspicuous reversible capacity of 1566.7 mAh g⁻¹ after 50 cycles at 0.1 A g⁻¹, remarkable cyclability with 380.1 mAh g⁻¹ after 1000 cycles at an ultrahigh current density of 10 A g⁻¹, as well as a good environmental adaptation with 568.6 and 811.4 mAh g⁻¹ at −5 °C and 55 °C. For sodium-ion batteries, the OZMO electrode delivers a stable discharge capacity of 110.8 mAh g⁻¹ after 1000 cycles at a large current density of 1 A g⁻¹. The UV–Vis diffusive reflectance spectrum shows that the OZMO sample has a narrow bandgap, thus improving the electrical conductivity. Moreover, this strategy may increase the active sites, which provides a large electrolyte/electrode contact area and shortens the diffusion distance for both ions and electrons, thereby buffering the volume variation originated from the repeated Li⁺/Na⁺ intercalation/deintercalation process.

通过简便的共沉淀/化学还原途径制备了富含阴离子缺陷（氧空位）的ZnMn ₂ O ₄纳米棒（OZMO）。OZMO纳米棒具有丰富的氧空位，大量的中孔和突出的拟电容的协同作用机制，可为OZMO纳米棒提供长期的化学耐久性，从而可以高效地存储锂/钠。当被评估为锂离子电池的负极时，OZMO电极在0.1 A g ^-1下经过50次循环后，具有明显的可逆容量1566.7 mAh g ^-1，在超高电流密度下经过1000次循环后具有380.1 mAh g ^-1的出色循环能力。10 A g ^-1的功耗，以及568.6和811.4 mAh g的良好环境适应性^-1在-5°C和55°C下。对于钠离子电池，OZMO电极经过1000次循环后，在1 A g ^-1的大电流密度下可提供110.8 mAh g ^-1的稳定放电容量。UV-Vis漫反射光谱表明，OZMO样品具有较窄的带隙，从而提高了电导率。此外，该策略可以增加活性位，从而提供较大的电解质/电极接触面积，并缩短离子和电子的扩散距离，从而缓冲源自重复的Li ⁺ / Na ⁺嵌入/脱嵌过程的体积变化。