Lithium battery recovery device and lithium battery recovery method

Abstract

The invention relates to the technical field of battery recovery, in particular to a lithium battery recovery device and a lithium battery recovery method. The lithium battery recycling device comprises a negative electrode baking box, a positive electrode baking box, a negative electrode separation assembly and a positive electrode separation assembly, the negative electrode baking box and the positive electrode baking box are independently arranged, a negative electrode constant-temperature cavity is formed in the negative electrode baking box, and a positive electrode constant-temperature cavity is formed in the positive electrode baking box; the negative electrode separation assembly can drive a negative electrode piece on the electrode roll to move in the negative electrode constant-temperature cavity so that the negative electrode baking box can collect electrolyte and black powder on the negative electrode piece, and the positive electrode separation assembly can drive a positive electrode piece on the electrode roll and a diaphragm to move in the positive electrode constant-temperature cavity. And collecting the electrolyte and the black powder on the positive pole piece by the positive pole baking box. According to the lithium battery recycling method, the lithium battery recycling device is applied to recycle the lithium battery, the pole roll does not need to be crushed, environmental pollution is reduced, and the recycling rate of precious metal in the lithium battery is increased.

Description

technical field [0001] The invention relates to the technical field of battery recycling, in particular to a lithium battery recycling device and a lithium battery recycling method. Background technique [0002] During the recycling process of used lithium-ion battery packs, due to the diversity of the recycled lithium battery structures and dimensions, a high degree of manual participation is required. Now there are two conventional processing methods: one is to take out the pole roll from the battery shell, and then manually disassemble and separate the positive and negative pole pieces, then crush and sort to obtain black powder, but this method makes the positive and negative pole pieces The electrolyte is easy to volatilize into the air, which will cause harm to the human body and the environment; another method is to directly crush and sort the pole rolls to obtain black powder, but the black powder obtained by this method has a high impurity content, which increases t...

AI Technical Summary

Problems solved by technology

Now there are two conventional processing methods: one is to take out the pole roll from the battery shell, and then manually disassemble and separate the positive and negative pole pieces, then crush and sort to obtain black powder, but this method makes the positive and negative pole pieces The electrolyte is easy to volatilize into the air, which will cause harm to the human body and the environment; another method is to directly crush and sort the pole rolls to obtain black powder, but the black powder obtained by this method has a high impurity content, which increases the subsequent wet process. The cost of impurity removal in metallurgy is not very friendly to the environment

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