Titanium dioxide (TiO₂) plays a vital role especially in the field of sustainable energy including photovoltaic, environmental remediation, energy storage devices, and secondary rechargeable batteries. Herein, we report melamine as an efficient soft template to produce gram-scale TiO₂ nanoparticles as anode material in lithium-ion batteries (LIBs). The X-ray diffraction confirms the formation of anatase phase with high crystallinity, while FESEM and HRTEM reveal a spherical morphology with average size of 10–20 nm. Tested as anode material in LIBs, it demonstrates an excellent electrochemical performance with high discharge capacity of 316 mAh g⁻¹ and 272 mAh g⁻¹ at 0.1C and 1C rates, respectively, with long-term cycle life stability over 1000 cycles. The TiO₂ anode when coupled with LiNi_0.33Mn_0.33Co_0.33O₂ (NMC) cathode in full cell delivered capacity of 95 mAh g⁻¹ after 30th cycle with about 2 V. The high discharge capacity could originate from high interparticles contact and nanosize features which could permit fast Li-ion diffusion and fast kinetics.

二氧化钛（TiO ₂）尤其在包括光伏，环境修复，能量存储设备和可充电二次电池的可持续能源领域中发挥着至关重要的作用。在本文中，我们报告了三聚氰胺作为一种有效的软模板，可生产出克级的TiO ₂纳米颗粒，作为锂离子电池（LIB）中的阳极材料。X射线衍射证实了具有高结晶度的锐钛矿相的形成，而FESEM和HRTEM显示出球形形态，平均尺寸为10–20 nm。经测试可作为LIB的阳极材料，它具有出色的电化学性能，并具有316 mAh g ^-1和272 mAh g ^-1的高放电容量分别在0.1C和1C的速率下具有1000次循环的长期循环寿命稳定性。TiO ₂阳极与LiNi _0.33 Mn _0.33 Co _0.33 O ₂（NMC）阴极耦合时，在第30次循环后，在约2 V的电压下，全电池传递的容量为95 mAh g ^-1。可以实现快速锂离子扩散和快速动力学的特征。