A simple strategy to synthesis CFx@MnO2-nanowires composite cathode materials for high energy density and high power density primary lithium batteries

CFx@MnO2-nanowires composite materials are designed and synthesized for high energy density and high power density primary lithium batteries. The MnO2-nanowires intertwine with each other and coated on the surface of CFx tightly, which not only provides capacityand improved the discharge voltage platform, but also forms a suitable three-dimensional conductive framework and improves the wettability of the surface of CFx. Thus, the discharge rate of CFx@MnO2-nanowires composite cathode can reach up to 6 C, and presents excellent electrochemical properties with a maximum energy density of 1613.9 Wh/kg and a maximum power density of 9781.0 W/kg, which is much higher than the pristine CFx cathode. In addition, the composite cathode exhibits an incredible discharge performance at high and low temperatures with a discharge specific capacity of 650 mAh/g at -30 °C and 950 mAh/g at 100 °C, which proves that it can be utilized normally in harsh conditions.