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We prepared the anode materials Na_2Ti_3O7(referred to as M-NTO and S-NTO) for sodium ion battery by a molten salt method and a sol-gel method, respectively.Moreover, we characterized their physicochemical properties by XRD,FTIR,Raman, SEM,EDS-mapping, and XPS,and studied their electrochemical performance.The results show that S-NTO prepared by the sol-gel method is significantly superior to M-NTO prepared by the molten salt method in terms of crystallinity, uniformity of grain size, and phase purity.At a rate of 0.5 C and a voltage range of 0.01-2.50 V,the first-cycle charge and discharge specific capacities of S-NTO battery are 78.9 and 61.4 mAh·g-1,respectively.After cycling 5 cycles at a rate of 5 C,the specific capacity decay of S-NTO battery is only 3.4 mAh·g-1.Under the same measurement conditions, the battery assembly using S-NTO anode material has the smaller charge transfer resistance.The sol-gel method has significant advantages in regulating the microstructure of anode materials.The highly ordered crystal structure and uniform particle size of the anode material can effectively inhibit the structural degradation during the cycling process, thereby improving its long-term stability.
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Basic Information:
China Classification Code:TB34;TM912
Citation Information:
[1]ZHAO Xiaoxue,ZHAO Bo,JI Chaowei ,et al.Preparation and Electrochemical Performance of Na_2Ti_3O_7 Anode Material for Sodium Ion Battery[J].Chemistry ＆ Bioengineering,2026,43(07):47-53.
Fund Information:
国家自然科学基金项目(52472116); 陕西省教育厅科学研究计划项目(24JR005,24JP007); 陕西省重点研发计划一般项目(2025CY-YBXM-189)
2026-07-06
2026-07-06