▎ 摘　　要

NOVELTY - Manufacture of low-temperature large-rate discharge performance of lithium iron phosphate comprises (i) preparing nano-lithium iron phosphate material, carbon nanotube conductive agent graphene conductive material, polyvinyl diaphragm adhesive, N-methylpyrrolidone as solvent, stirring for 10-12 hours, (ii) coating cathode on aluminum foil with extrusion coating machine and vacuum baking, (iii) cutting positive pole cathode into spare pole piece through slitting machine, welding 5-10 tabs, where width of the tab is 10- 12 mm, (iv) preparing anode through winding machine or sheet stacking machine, (v) placing anode in steel shell or aluminum-plastic film, placing in vacuum drying, (vi) placing electric core in glove, (ix) transferring to glove box, and injecting low-temperature electrolyte; (x) sealing and cleaning of the battery cell; and (xi) carrying out the follow-up work of forming, aging and dividing the sealed cells. USE - Manufacturing method of low-temperature large-rate discharge performance of lithium iron phosphate battery. Uses include but are not limited to handheld electronic devices, plug-in hybrid power vehicles (PHEVs), pure-electric (EVs) and large-scale energy storage stations. ADVANTAGE - The lithium iron phosphate battery has excellent low-temperature discharge performance, excellent multiplying power performance, stable voltage platform, good cycle performance, heat stability, long cycle life, and excellent low temperature and high rate discharge characteristics. Because of the excellent performance, it can be used in many occasions with high safety and stability requirement, which greatly expands the application of the battery.