Physical method for separating electrode current collector from electrode material of lithium ion battery

Abstract

The invention discloses a physical method for separating an electrode current collector from an electrode material of a lithium ion battery. The method comprises the following steps of smashing a waste material of the lithium ion battery, and enabling the electrode current collector to be separated from the electrode material by a smashing effect, wherein the waste material of the lithium ion battery comprises, but not limited to, a waste lithium ion battery positive electrode, a waste lithium ion battery negative electrode, a mixture of the waste lithium ion battery positive electrode and the waste lithium ion battery negative electrode and a waste lithium ion battery. The method has the advantages of high separation efficiency, simple process, no pollution, low cost and the like, and the problems of pollution and resource of the waste lithium ion battery can be solved.

Description

technical field [0001] The invention relates to a physical method for separating an electrode collector and an electrode material of a lithium ion battery, and belongs to the technical field of battery recycling. Background technique [0002] Nowadays, due to the increasing scrapping of electronic products, the amount of scrapping lithium-ion batteries used in electronic products is also increasing. Especially with the development of electric vehicles, how to recycle lithium-ion batteries in an environmentally friendly manner is becoming more and more important. In the prior art, there are related recycling technologies about lithium-ion batteries, such as: Chinese patent application CN01130735.8, the invention titled "Method for recovering metals from waste lithium-ion batteries" discloses a recycling method, which Although the invention can also achieve the purpose of recovering the metals in it, high-temperature furnace roasting is used in the recovery process, and the me...

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Problems solved by technology

In the prior art, there are related recycling technologies about lithium-ion batteries, such as: Chinese patent application CN01130735.8, the invention titled "Method for recovering metals from waste lithium-ion batteries" discloses a recycling method, which Although the invention can also achieve the purpose of recovering the metals in it, high-temperature furnace roasting is used in the recovery process, and the means of adding acid to dissolve is also used. In the recovery process, not only new environmental pollution is produced, but also the cost is high and the process is complicated. Not suitable for large-scale recycling requirements! Therefore, the development of a high-efficiency, pollution-free, and low-cost physical method for separating the electrode current collector and electrode material of lithium-ion batteries will have important value and social significance for solving the pollution and recycling of waste lithium-ion batteries.

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