Rational design of Ag nanowires growth engineered conductivity chain toward Li/CFx primary batteries with high-energy and high-power density

The low intrinsic conductivity of carbon monofluoride (CF x ) extremely limits the high-power application of lithium/carbon monofluoride (Li/CF x ) primary batteries. Herein, silver nanowires were grown in situ on the surface of CF x material by an aldehyde reduction method in polyhydric alcohol. The interface interaction between silver nanowires (Ag NWs) and the surface of CF x material was studied. Ag NWs@CF x hybrids modulate the electronic structure of CF x and enhance the electrochemical activity of C–F bonds, thus increasing the availability of F atoms to participate in the discharge reaction. The electrochemical performance results show that the voltage platform, specific capacity, and energy density of the Li/CF x batteries were enhanced with a certain concentration of Ag NWs on the CF x surface. The 10% Ag NWs@CF x sample achieved a power density of 10376.09 W/kg and an energy density of 840 Wh/Kg at a discharge rate of 8C, which is significantly better than the pristine CF x . The performance of Li/CF x batteries is improved by building an Ag conductivity chain and enhancing the electrochemical activity of C–F bonds through a simple hydrothermal method , which effectively expands the application prospects of Li/CF x batteries in the field of high-power devices.