Solvent sorting and pre-processing method of waste lithium ion battery
A lithium-ion battery and pretreatment technology, which is applied in the field of hydrometallurgy, can solve the problems of industrialization such as difficulty and demanding requirements, and achieve the effects of short treatment cycle, reduced treatment cost and high separation rate
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Embodiment 1
[0023] The invention discloses a solvent sorting and pretreatment method for waste lithium ion batteries, which comprises the following steps:
[0024] Step 1. Discharge: Prepare an aqueous solution containing a conductive agent, stir the discharge solution evenly and place it in a closed discharge container, then put the waste lithium-ion battery into the prepared discharge container, so that the waste lithium-ion battery is completely immersed in the discharge container. Solution, when the voltage drops below 0.5V, the lithium-ion battery is completely discharged;
[0025] Step 2. Dismantling and cutting: With the help of a shearing machine, remove the outer packaging of the waste lithium-ion battery, and recycle the control circuit board and connecting metal sheet, and then cut the positive and negative electrodes of the single battery by the cutting machine into small pieces;
[0026] Step 3. Solvent sorting: collect the positive and negative waste electrodes processed in...
Embodiment 2
[0030] The invention discloses a solvent sorting and pretreatment method for waste lithium ion batteries, which comprises the following steps:
[0031] Step 1. Discharge: Prepare an aqueous solution containing a conductive agent, stir the discharge solution evenly and place it in a closed discharge container, then put the waste lithium-ion battery into the prepared discharge container, so that the waste lithium-ion battery is completely immersed in the discharge container. Solution, when the voltage drops below 0.5V, the lithium-ion battery is completely discharged;
[0032] Step 2. Dismantling and cutting: With the help of a shearing machine, remove the outer packaging of the waste lithium-ion battery, and recycle the control circuit board and connecting metal sheet, and then cut the positive and negative electrodes of the single battery by the cutting machine into small pieces;
[0033] Step 3. Solvent sorting: collect the positive and negative waste electrodes processed in...
Embodiment 3
[0037] The invention discloses a solvent sorting and pretreatment method for waste lithium ion batteries, which comprises the following steps:
[0038] Step 1. Discharge: Prepare an aqueous solution containing a conductive agent, stir the discharge solution evenly and place it in a closed discharge container, then put the waste lithium-ion battery into the prepared discharge container, so that the waste lithium-ion battery is completely immersed in the discharge container. Solution, when the voltage drops below 0.5V, the lithium-ion battery is completely discharged;
[0039] Step 2. Dismantling and cutting: With the help of a shearing machine, remove the outer packaging of the waste lithium-ion battery, and recycle the control circuit board and connecting metal sheet, and then cut the positive and negative electrodes of the single battery by the cutting machine into small pieces;
[0040]Step 3. Solvent sorting: collect the positive and negative waste electrodes processed in ...
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