Modified polyphenylene sulfide (pps) and pps modification method, pps solid separator, prefabricated zinc salt separator and manufacturing method thereof, to-be-filled zinc-manganese secondary battery, and manufacturing and application methods thereof

Abstract

Modified polyphenylene sulfide (PPS) and a PPS modification method, a PPS solid separator, a prefabricated zinc salt separator and a manufacturing method thereof, a to-be-filled zinc-manganese secondary battery and a manufacturing method, a formation method and an application method thereof are provided. Through hydrothermal synthesis, tetrachlorobenzoquinone in PPS powder undergoes a dechlorination and hydrogenation reaction to form molecules with a chlorocatechol structure, to improve the adsorption performance of the PPS solid separator towards harmful molecules. Moreover, in combination with the protection of welding spots during the battery assembly process, and a formation method involving injection of an aqueous electrolyte solution followed by alcohol during the formation process, the cycling stability of the battery is improved and the service temperature range of the battery is broadened.