Cu-doped Li₄Ti₅O₁₂ anode material is prepared through a facile direct-synthesis-from-solution (DSS) route assisted with freeze-drying. The Cu-doping can reduce the charge transfer resistance and enhance the lithium-ion diffusion and electronic conductivity. Among the as-fabricated samples, LTO-0.1Cu sample shows the best cycling performance and rate capability, delivering the capacity of 216.4, 206.4, 195.1, 184.5 and 173.3 mAhg^‐1 at 1, 2, 5, 10 and 20C, respectively, and 180.6 mAhg^‐1 at 10C after 500 cycles with 83.8% retention. Thus, this work provides an effective approach to improve the electrochemical performance of Li₄Ti₅O₁₂ as the anode materials for high-rate lithium-ion battery applications.

铜掺杂的Li ₄ Ti ₅ O ₁₂负极材料是通过一种简单的直接从溶液中直接合成（DSS）的方法，并辅以冷冻干燥的方法制备的。铜掺杂可降低电荷转移电阻并增强锂离子扩散和电子电导率。间的制成样品，LTO-0.1Cu样品显示出最佳的循环性能和倍率性能，提供216.4，206.4，195.1，184.5和173.3 mAhg的容量^{- 1} 1，图2，图5，分别为10和20℃，和180.6 mAhg ^{- 1}在500个循环的83.8％保留后10℃。因此，这项工作为改善Li ₄ Ti ₅ O的电化学性能提供了一种有效的方法。₁₂作为高倍率锂离子电池应用的负极材料。