CFx batteries are renowned for possessing the high energy density of 2180 Wh kg–1 among primary lithium batteries. As fluorine content increases, the specific capacity of the battery also increases accordingly. In comparison to lithium-ion batteries, Li/CFx batteries offer extended storage life, exceptional energy density, and convenient fungibility, rendering them essential in a wide range of applications such as pacemakers, landers, smart factory backup power supplies, power tools, and backup equipment. Consequently, the integration of this battery technology in forthcoming military, medical, and aerospace applications is deemed highly advantageous. Nonetheless, Li/ CFx batteries exhibit room for improvement as their practical performance currently falls short of their theoretical potential. To enhance the electrochemical performance of Li/CFx batteries, further study of their working mechanism is imperative. In this content, we will delve into the relevant properties of CFx batteries to provide insights into their theoretical capabilities. Additionally, we will present existing kinetic hypotheses to elucidate the differences between theoretical and experimental performance, aiming to pave the way for advancements in this technology.