多级碳复合的大尺寸硅颗粒在锂离子电池负极中的性能

郑瀚, 来沛霈, 田晓华, 孙卓, 张哲娟

Performance of large-scale silicon particles coated with multistage carbon as anode materials for lithium-ion batteries

Han ZHENG, Peipei LAI, Xiaohua TIAN, Zhuo SUN, Zhejuan ZHANG

图12 SPU#PANI-3电极(a) 在不同扫速下的CV循环曲线；(b) 不同扫速与峰电流的关系；(c) 在0.8 mV/s电压扫描速率下的赝电容贡献率；(d) 在不同扫速下赝电容贡献率

Fig. 12 (a) CV curves at different sweep rates; (b) the relationship between current and sweep rates in both discharging and charging process; (c) percentage of capacitive and diffusion contribution at 0.8 mV/s; (d) percentage of the capacitive and diffusion contribution at different sweep rates of SPU#PANI-3