The poor electronic conductivity of fluorinated graphite (CF_x) is one of the key problems limiting its electrochemical performance. Herein, polydopamine−derived nitrogen−doped carbon coating is adapted to improve the electrochemical performance of CF_x by modifying its electronic conductivity. The effects of dopamine hydrochloride/CF_x ratio and the carbonization temperature on the electrochemical performance of nitrogen−doped carbon coated CF_x samples (CF_x@NC−x−y) cathodes are investigated. CF_x@NC−x−y cathodes present enhanced rate performance and discharge plateau, and increased energy and power densities, compared with the pristine CF_x. Particularly, the CF_x@NC−3−350 achieves optimized electrochemical performance, such as a discharge capacity of 550.5 mAh g⁻¹ with a plateau of 2.18 V at 2000 mA g⁻¹, corresponding to high power and energy densities of 4360 W kg⁻¹ and 1171.2 Wh kg⁻¹, whereas the pristine CF_x is unable to work. The enhanced electrochemical performance is contributed to the improved electronic conductivity of the nitrogen−doped carbon−coated CF_x.

氟化石墨（CF _x）较差的电子导电性是限制其电化学性能的关键问题之一。在此，聚多巴胺衍生的氮掺杂碳涂层适用于通过改变其电子电导率来提高 CF _{x的电化学性能。}研究了多巴胺盐酸盐/CF _x比率和碳化温度对氮掺杂碳涂层 CF _x样品（CF _x @NC-x-y）阴极电化学性能的影响。_{与原始 CF x}相比， CF _x @NC-x-y 正极具有更高的倍率性能和放电平台，以及更高的能量和功率密度. 特别是，CF _x @NC-3-350 实现了优化的电化学性能，例如放电容量为 550.5 mAh g ^-1，在 2000 mA g ^-1下具有 2.18 V 的平台，对应于 4360 W 的高功率和能量密度kg ^-1和 1171.2 Wh kg ^-1，而原始 CF _x无法工作。增强的电化学性能有助于提高氮掺杂碳涂层CF _x的电子电导率。