Waste lithium battery resource recycling method and application of product
A waste lithium battery and recycling method technology, applied in the field of electronic waste recycling, can solve the problems of easily destroying the physical structure of active substances, a large amount of waste gas, secondary pollution, etc., to achieve environmental friendliness, less three waste emissions, and improve recovery rate Effect
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[0024] Example 1
[0025] Recycling methods for waste lithium batteries:
[0026] Step 1: Put the waste lithium battery into a NaCl solution with a mass fraction of 4% to 6%, and discharge it for 12 hours to avoid a short-circuit and sparks caused by a safety accident when broken;
[0027] Step 2: Wet crush the discharged lithium battery to a particle size ≤ 12mm;
[0028] Step 3: Send the crushed waste lithium battery into the crushing tank, mix with water, stir to obtain a mixture, extract the suspension in the mixture and filter to obtain a mixture of lithium cobaltate, carbon powder and clear liquid, and return the clear liquid to the tank Internal recycling, the recovery rate of lithium cobalt oxide and carbon powder in this step is about 50%;
[0029] Step 4: Transport the mixture after extracting the suspension to the next tank through a screw conveyor, add 4%~5% sodium hydroxide solution to dissolve aluminum for 1.5h~2h, then separate the alkaline washing liquid and solid slag,...
Example Embodiment
[0031] Example 2
[0032] Recycling methods for waste lithium batteries:
[0033] Step 1: Put the waste lithium battery into a NaCl solution with a mass fraction of 4% to 6%, and discharge it for 12 hours to avoid a short-circuit and sparks caused by a safety accident when broken;
[0034] Step 2: Wet crush the discharged lithium battery to a particle size ≤ 12mm;
[0035] Step 3: Send the crushed waste lithium battery into the crushing tank, mix with water, stir to obtain a mixture, extract the suspension in the mixture and filter to obtain a mixture of lithium cobaltate, carbon powder and clear liquid, and return the clear liquid to the tank Internal recycling, the recovery rate of lithium cobalt oxide and carbon powder in this step is about 50%;
[0036] Step 4: Transport the mixture after extracting the suspension to the next tank through a screw conveyor, and wash it with water until no lithium cobalt oxide or carbon powder is produced, and separate and recover the floating plasti...
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