钛铌氧化物用于锂离子电池负极的研究进展

孙德旺, 蒋必志, 袁涛, 郑时有

Research progress of titanium niobium oxide used as anode of lithium-ion batteries

Dewang SUN, Bizhi JIANG, Tao YUAN, Shiyou ZHENG

图3 不同类型的赝电容机制[25]：(a) 单层吸附赝电容（欠电位沉积），(b) 表面氧化还原赝电容，(c) 插层赝电容；循环伏安法计算电容贡献率[26]：(d) 0.5 mV/s下总电流（实线）和电容电流（阴影区域），(e) 不同扫描速率下电容和扩散控制电荷的贡献率

Fig. 3 Different pseudocapacitance mechanisms[25]: (a) monolayer adsorption pseudocapacitance (underpotential deposition), (b) surface redox pseudocapacitance, and (c) intercalation pseudocapacitance; Calculation of capacitance contribution by CV[26]: (d) separation of totalcurrent (solid line) and capacitive currents (shaded regions) at 0.5 mV/s, (e) contribution ratio of capacitive and diffusion-controlled charge at various scan rates