Method for recycling positive electrode material of waste lithium ion battery as electrocatalyst
A lithium-ion battery and positive electrode material technology, which is applied in the field of recycling waste lithium-ion battery positive electrode materials as electrocatalysts, can solve environmental pollution, resource waste and other problems, and achieve the effects of reducing pollution, saving resources, and protecting the environment
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specific Embodiment approach 1
[0030] The method for reclaiming waste and old lithium-ion battery cathode materials as electrocatalysts comprises the following steps:
[0031] Step 1. After the commercial lithium-ion battery is discharged, it is disassembled by a mechanical method to obtain the positive pole piece; the obtained positive pole piece is cleaned with an organic solvent I, and the side reaction products and lithium salt on the surface of the pole piece are cleaned. After cleaning, let it dry naturally for 2-12 hours;
[0032] Step 2. Obtain the active material from the positive electrode sheet by mechanical means, and perform calcination at 300-800°C for 30-120min in the air atmosphere to remove the conductive agent I, binder I and active material mixed with the active material in the electrode The interface film on the surface, and the calcined product is ground and sieved to obtain the transition metal oxide material with the required particle size;
[0033] Step 3: Mix transition metal oxide...
specific Embodiment approach 2
[0043] The method for reclaiming waste and old lithium-ion battery cathode materials as electrocatalysts comprises the following steps:
[0044] Step 1. After the commercial lithium-ion battery is discharged, it is disassembled by a mechanical method to obtain the positive pole piece; the obtained positive pole piece is cleaned with an organic solvent I, and the side reaction products and lithium salt on the surface of the pole piece are cleaned. After cleaning, let it dry naturally for 2-12 hours;
[0045] Step 2. Obtain the active material from the positive electrode sheet by mechanical means, and perform calcination at 300-800°C for 30-120min in the air atmosphere to remove the conductive agent I, binder I and active material mixed with the active material in the electrode The interface film on the surface, and the calcined product is ground and sieved to obtain the transition metal oxide material with the required particle size;
[0046] Step 3: Mix transition metal oxide...
specific Embodiment approach 3
[0056] The method for reclaiming waste and old lithium-ion battery cathode materials as electrocatalysts comprises the following steps:
[0057] Step 1. After the commercial lithium-ion battery is discharged, it is disassembled by a mechanical method to obtain the positive pole piece; the obtained positive pole piece is cleaned with an organic solvent I, and the side reaction products and lithium salt on the surface of the pole piece are cleaned. After cleaning, let it dry naturally for 2-12 hours;
[0058] Step 2. Obtain the active material from the positive electrode sheet by mechanical means, and perform calcination at 300-800°C for 30-120min in the air atmosphere to remove the conductive agent I, binder I and active material mixed with the active material in the electrode The interface film on the surface, and the calcined product is ground and sieved to obtain the transition metal oxide material with the required particle size;
[0059] Step 3: Mix transition metal oxide...
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