To improve the electrochemical performance of Co₃O₄-based anode materials for lithium-ion batteries, Co₃O₄/Co nanocomposites have been fabricated by a pulsed laser sintering technique. The laser sinters the initial Co₃O₄ particles into micron-sized compact secondary particles and leads to the formation of in-situ Co nanoparticles. The compact structure of the secondary particles reduces the generation of solid electrolyte interface (SEI) and the in-situ Co nanoparticles enhance the conductivity. Consequently, the compact Co₃O₄/Co in-situ nanocomposites deliver significantly enhanced initial coulombic efficiency (ICE), reversible capacity and cycling stability as compared to the original Co₃O₄ sample. These results offer a new approach to design high-performance electrode materials.

为了改善用于锂离子电池的基于Co ₃ O ₄的负极材料的电化学性能，已经通过脉冲激光烧结技术制备了Co ₃ O ₄ / Co纳米复合材料。激光将初始的Co ₃ O ₄颗粒烧结成微米级的致密二次颗粒，并导致原位形成Co纳米颗粒。次级颗粒的紧凑结构减少了固体电解质界面（SEI）的产生，并且原位Co纳米颗粒增强了电导率。因此，紧凑的Co ₃ O ₄/ Co原位纳米复合材料与原始Co ₃ O ₄样品相比，可显着提高初始库仑效率（ICE），可逆容量和循环稳定性。这些结果为设计高性能电极材料提供了一种新方法。