The invention discloses a high-multiplying-power flexibly-packaged lithium ion secondary battery. The high-multiplying-power flexibly-packaged lithium ion secondary battery comprises an outer packaging film, wherein a positive plate, an isolation film, a negative plate and electrolyte are arranged in the outer packaging film, the positive plate comprises an aluminum foil, the surface of the aluminum foil is provided with a positive material layer consisting of positive active substances, a conductive agent and a binder, the positive active substances consist of lithium cobalt oxide and lithium iron phosphate in different working voltages, the aluminum foil is provided with a plurality of positive through holes, the positive substance layer is provided with a plurality of positive pores corresponding to the through holes, and the electrolyte can pass through the positive through holes and the positive pores; the negative plate comprises a copper foil, wherein the surface of the copper foil is provided with a negative substance layer consisting of a negative active substance, a conductive agent and a binder, the negative active substance is a carbon material, the copper foil is provided with a negative through holes, the negative substance layer is provided with a plurality of negative pores corresponding to the through holes, and the electrolyte can pass through the negative through holes and the negative pores.