A safe and automatic dismantling method for controllable discharge of waste hard-shell lithium-ion power batteries

Abstract

The invention belongs to the technical field of recycling of lithium-ion batteries, and particularly relates to a controllable discharging and safe and automatic disassembling method for a waste hard-shelled lithium-ion power battery. The method comprises the following steps: S1, discharging the waste hard-shelled lithium-ion power battery; S2, placing the discharged battery in step S1 in automatic battery disassembling equipment and then disassembling the battery; and S3, classifying and recycling the materials disassembled in step S2. The battery can be rapidly disassembled by the automaticbattery disassembling equipment used in the method, the disassembling efficiency is high, during cutting of the power battery, a cut position is cooled by liquid nitrogen, spontaneous combustion of the battery due to over-high temperature during cutting is avoided, explosion of the battery is also avoided, battery cutting operation is carried out in a box, thus, personal safety of a disassemblingworker is benefited, and by a gas filtering mechanism, the circumstance that the environment is polluted by waste gas generated during disassembling is avoided.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion battery recycling, in particular to a safe and automatic dismantling method for a waste hard-shell lithium-ion power battery with controllable discharge. Background technique [0002] Hard-shell lithium-ion power battery is the power source that provides power for tools. It refers to one of the batteries that provide power for electric vehicles, electric trains, electric bicycles, and golf carts. With the rapid development of new energy vehicles, waste power The recycling, dismantling and reuse of lithium-ion batteries has become a problem that cannot be ignored in the process of new energy development. After recycling, waste power lithium-ion batteries need to be disassembled to reduce the pollution of the battery to the environment. The electrodes of the disassembled lithium-ion batteries , casing, electrolyte, etc. can still be reused, so the dismantling of lithium-ion power batteries is of...

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Problems solved by technology

[0004] The object of the present invention is to provide a safe and automatic dismantling method of waste hard-shell lithium-ion power batteries in order to solve the above problems. The battery is fixed between the first pressure plate and the second pressure plate, and then the first motor and the second motor are started, and the second motor drives the screw to rotate, so that the slider moves, and then the cutting knife cuts the power battery, and the disassembly efficiency is relatively high. High, when the power battery is cut, the liquid nitrogen cools the cutting place, avoiding the spontaneous combustion of the battery caused by the high temperature during cutting, avoiding the battery explosion, and the battery cutting is located in the box, which is beneficial to the personal safety of the dismantling personnel. Safety; set up a gas filter mechanism, the exhaust gas generated by cutting the power battery is extracted from the box by the fan, and the extracted gas is sent into the gas filter box; the polluted gas in the exhaust gas is absorbed by the alkaline solution in the gas filter box, and then filtered The gas is discharged from the exhaust pipe, which avoids the pollution of the exhaust gas to the environment during dismantling, and at the same time avoids the situation where the dismantling personnel inhale toxic gas, protecting the health of the dismantling personnel. At the same time, the device contains a filter screen and waste liquid collection bottle, which can cleanly and effectively collect the electrolyte in the power battery

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