The hierarchically porous Co₃O₄ microrods made up of orientated self-assembled nanorods are fabricated through a facile strategy, which possess bicontinuous mesopores and one dimensional macropores. Oxygen vacancies are successfully introduced into Co₃O₄ microrods by simply controlling the heating temperature. When applied into lithium ion batteries as anode materials, local in-plane electric fields induced by the introduced oxygen vacancies and hierarchically bicontinuous porous feature endow Co₃O₄ microrods with enhanced ionic and electronic conductivity, outstanding structural stability and good electrochemical (de)lithiation reversibility. As a result, a high reversible capacity of 1858 mA h g⁻¹ after 300 cycles at 0.5 A g⁻¹ and distinguished high-rate long-term cycling stability with a specific capacity of 502 mA h g⁻¹ after total 1000 cycles at 5 A g⁻¹ are delivered. The magnetic hysteresis loops, zero-field cooled and field-cooled temperature-dependent magnetization curves after different cycles are used to explore the electrochemical reaction reversibility and structural stability of electrode materials. The result highlights the importance of the intrinsic performance regulation of atomic defects, morphology, microstructures and pores structure of anode materials on the improvement of their ionic and electronic conductivity, structural stability and thus electrochemical properties.

由定向的自组装纳米棒组成的分层多孔Co ₃ O ₄微棒是通过一种容易的策略制造的，该策略具有双连续中孔和一维大孔。只需控制加热温度，就可以将氧空位成功引入Co ₃ O _4微棒中。当作为负极材料应用到锂离子电池中时，由引入的氧空位和分层双连续多孔特征诱导的局部面内电场赋予Co ₃ O ₄具有增强的离子和电子导电性，出色的结构稳定性和良好的电化学（去锂化）可逆性的微棒。其结果是，的1858毫安ħg的高可逆容量^-1之后，在0.5 A G 300次循环^-1和杰出的高速率长期循环用的502毫安ħg的比容量稳定性^-1在5总共1000次循环后g ^-1已交付。使用磁滞回线，零场冷却和场冷却后不同循环的温度相关的磁化曲线来探索电极材料的电化学反应可逆性和结构稳定性。该结果强调了阳极材料的原子缺陷，形态，微观结构和孔结构的内在性能调节对改善其离子和电子导电性，结构稳定性以及电化学性能的重要性。