The spinel MnCo₂O₄ characterizing metallic synergistic effect and multi-electron transfer is a promising anode material in lithium-ion batteries (LIBs) fields. In the work, the MnCo₂O₄ porous nanospheres are prepared in virtue of self-assembly ability of glycerol micro-emulsion and subsequent annealing under appropriate temperature. Polypyrrole pyrolytic carbon is introduced to hybridize with low-dimension MnCo₂O₄ material to settle the common problems of intrinsic low electrical conductivity and severe volume expansion of electrode material. Because of hierarchical porous structure, polypyrrole pyrolytic carbon and metallic synergistic effect, the electrode delivers higher specific capacity, better rate capability and long-term cycling stability compared to several spinel-type oxides/carbon composites.

尖晶石MnCo ₂ O ₄具有金属协同作用和多电子转移的特征，是锂离子电池（LIBs）领域中有希望的阳极材料。在工作中，借助于甘油微乳液的自组装能力和随后在适当温度下的退火，制备了MnCo ₂ O ₄多孔纳米球。引入聚吡咯热解碳与低维MnCo ₂ O ₄杂化解决电极材料固有的低电导率和严重的体积膨胀的常见问题。由于具有多层多孔结构，聚吡咯热解碳和金属的协同效应，与几种尖晶石型氧化物/碳复合材料相比，该电极具有更高的比容量，更好的倍率性能和长期循环稳定性。