Treatment method for waste lithium-ion battery
A technology of lithium ion battery and treatment method, applied in the field of waste lithium ion battery treatment, can solve the problems of online production of active substances, neglect of recycling treatment, secondary environmental pollution, etc., so as to increase battery recycling treatment and shorten production process , the effect of strong applicability
Inactive Publication Date: 2016-07-20
CHINA ELECTRONICS ENG DESIGN INST
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The invention relates to the technical field of comprehensive utilization of resources and discloses a treatment method for a waste lithium-ion battery. The method comprises the following steps: carrying out disassembling, discharging, breaking, crushing and sorting; carrying out alkaline transfer, acid dissolution and impurity removal on the sorted electrode material; and then carrying out chemical separation through pretreatment on the waste lithium-ion battery, wherein extraction and separation are a key step; partial cobalt is separated from lithium to obtain a nickel-cobalt-lithium, nickel-cobalt or nickel-cobalt-manganese mixed salt, a lithium salt and a cobalt salt; mixed sulfate regenerates a cathode material through chemical synthesis; an electrolyte and the cathode material can be obtained in the overall treatment process; the recovery rate of the cathode material is improved; and the recovery purity of copper, aluminum and the like are improved. In addition, the cathode material is directly produced; the production process is shortened; and construction of the circulating industry chain of battery production, battery recovery treatment and battery production is increased.
Application Domain
Waste accumulators reclaimingBattery recycling
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