SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND POWER CONSUMING DEVICE

A secondary battery includes a positive electrode plate, wherein the positive electrode plate comprising a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, the positive electrode film layer comprising a conductive agent, where the conductive agent comprises a first conductive carbon black and a second conductive carbon black, and the specific surface area of the second conductive carbon black is greater than that of the first conductive carbon black.