Method for recycling positive electrode of waste lithium ion battery

The invention provides a waste lithium ion battery positive electrode recovery method, relates to the technical field of waste lithium ion battery positive electrode recovery, and combines lithium cobalt oxide positive electrode recovery and aluminothermic reduction reaction by utilizing the characteristic that a lithium cobalt oxide battery positive electrode waste material simultaneously contains lithium cobalt oxide and a high-purity aluminum foil current collector. According to the method, cobalt and aluminum valuable metals are smelted through the aluminothermic reduction reaction, the smelting cost is low, the aluminothermic reaction rate is controlled and delayed by carbonizing the binder in the positive electrode of the waste lithium ion battery into amorphous carbon, the safety is improved, and resource and energy waste caused by direct combustion removal of PVDF is avoided; the waste lithium ion battery positive electrode recovery method is low in cost, environment-friendly and high in valuable meta