Spinel Li₄Ti₅O₁₂ is an attractive anode material for lithium ion batteries due to its stable electrochemical characteristics. However, its low electrical conductivity is regarded as a critical disadvantage for commercialization. The addition of P123 with Cr³⁺ doping enhanced the surface area and the electrical conductivity, which improved the electrochemical properties of Li₄Ti₅O₁₂. As-prepared samples were analyzed by X-ray diffraction, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, as well as BET and BJH analysis. Electrochemical properties were investigated by cyclic voltammetry, electrochemical impedance spectroscopy, powder conductivity measurement and cycle performance testing. P-Li₄Ti_4.95Cr_0.05O₁₂ showed excellent rate performance of 191, 189, 184, 175, 157, and 137mAh/g at C-rates of 0.2, 0.5, 1, 2, 5, and 10 and high stable capacity retention of 147 mAh/g at a C-rate of 10 after 300 cycles.

尖晶石 Li ₄ Ti ₅ O ₁₂因其稳定的电化学特性而成为一种极具吸引力的锂离子电池负极材料。然而，其低导电性被认为是商业化的一个关键缺点。添加Cr ³⁺掺杂的P123提高了表面积和电导率，从而改善了Li ₄ Ti ₅ O ₁₂的电化学性能. 制备的样品通过 X 射线衍射、X 射线光电子能谱、场发射扫描电子显微镜以及 BET 和 BJH 分析进行分析。通过循环伏安法、电化学阻抗谱、粉末电导率测量和循环性能测试来研究电化学性质。P-Li ₄ Ti _4.95 Cr _0.05 O ₁₂在0.2、0.5、1、2、5和10的C倍率下表现出191、189、184、175、157和137mAh/g的优异倍率性能和高稳定容量在 300 次循环后以 10 倍的 C 倍率保持 147 mAh/g。