Recycling method of waste lithium manganate battery
A waste battery and lithium manganate technology, which is applied in battery recycling, waste collector recycling, recycling technology, etc., can solve the problems of battery pack degradation, environmental pollution, resource waste, etc., to improve production efficiency, solve pollution problems, The effect of facilitating exhaust gas treatment
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Embodiment 1
[0021] A method for reclaiming and regenerating lithium manganate waste batteries, comprising the following steps:
[0022] (1) Take 100 discarded 26650 lithium manganese oxide batteries, put them into a box-type atmosphere resistance furnace, close the inlet, feed nitrogen, and the gas flow rate is 10m 3 / h, the temperature is raised to 300°C for high-temperature calcination, the sintering time is 0.5 hours, the temperature is naturally lowered after 2 hours of heat preservation, and the waste lithium manganate battery slag is taken out after the furnace temperature drops to 20°C;
[0023] (2) The residue in the above-mentioned step 1 is processed by pulverizing and screening to separate the shell and the powder to obtain lithium manganate coarse powder;
[0024] (3) the lithium manganate coarse powder of step 2 is obtained carbon powder and lithium manganate fine powder by airflow sorting device; Manganese content 56.5% is determined in the lithium manganate fine powder by a...
Embodiment 2
[0028] A method for reclaiming and regenerating lithium manganate waste batteries, comprising the following steps:
[0029] (1) Take 100 discarded 26650 lithium manganese oxide batteries, put them into a box-type atmosphere resistance furnace, close the inlet, feed nitrogen, and the gas flow rate is 10m 3 / h, the temperature is raised to 500°C for high-temperature calcination, the sintering time is 3 hours, the temperature is naturally lowered after 2 hours of heat preservation, and the spent lithium manganate battery slag is taken out after the furnace temperature drops to 40°C;
[0030] (2) The residue in the above-mentioned step 1 is processed by pulverizing and screening to separate the shell and the powder to obtain lithium manganate coarse powder;
[0031] (3) the lithium manganate coarse powder of step 2 is obtained carbon powder and lithium manganate fine powder by airflow sorting device; Manganese content 56.5% is determined in the lithium manganate fine powder by ana...
Embodiment 3
[0035] A method for reclaiming and regenerating lithium manganate waste batteries, comprising the following steps:
[0036] (1) Take 100 discarded 26650 lithium manganese oxide batteries, put them into a box-type atmosphere resistance furnace, close the inlet, feed nitrogen, and the gas flow rate is 10m 3 / h, the temperature is raised to 650°C for high-temperature calcination, the sintering time is 6 hours, the temperature is naturally lowered after 2 hours of heat preservation, and the waste lithium manganate battery slag is taken out after the furnace temperature drops to 60°C;
[0037] (2) The residue in the above-mentioned step 1 is processed by pulverizing and screening to separate the shell and the powder to obtain lithium manganate coarse powder;
[0038] (3) the lithium manganate coarse powder of step 2 is obtained carbon powder and lithium manganate fine powder by airflow sorting device; Manganese content 56.5% is determined in the lithium manganate fine powder by ana...
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