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A device and method for separating and collecting materials of all components of waste lithium batteries

A waste lithium battery and collection device technology, applied in the battery field, can solve the problems of complex recycling process, introduction of a large number of chemical reagents, low processing efficiency of recycling processing equipment, etc., to achieve the effect of high recycling efficiency and easy industrialization

Active Publication Date: 2018-05-25
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, some invention patents disclose the recycling and treatment methods of lithium batteries, but there are the following deficiencies: (1) focus on the recycling of precious metal components such as cobalt and nickel, or only recycle electrode materials, and the recovery and utilization of other components of waste lithium batteries There are few reports of inventions such as recycling, harmless treatment of harmful components, and secondary pollution prevention in the recycling process.
(2) The recycling process is complicated, requiring the introduction of a large amount of chemical reagents or high temperature treatment
(3) The processing efficiency of recycling equipment is low, and it cannot be operated on a large scale

Method used

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  • A device and method for separating and collecting materials of all components of waste lithium batteries
  • A device and method for separating and collecting materials of all components of waste lithium batteries

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1 As shown, a material separation and collection device for all components of waste lithium batteries, which includes a roller crusher 2 and a knife crusher 3 connected by an electric conveyor belt 1, and a plastic crusher connected to the knife crusher 3 in sequence through a pipeline A material separation and collection device, a hammer mill 6 and a battery material separation device; an electrolyte adsorption and collection device 11 is provided above the roller crusher 2 and the knife crusher 3;

[0041] The plastic material separation and collection device includes a dense first vibrating screen 4, the first vibrating screen 4 is a sealed structure, the top of the first vibrating screen 4 is connected with a plastic material storage bin 41 through a pipeline, and the plastic material storage bin 41 is connected with a A dust collection device 5 is provided above the vacuum pump 14 and the plastic material storage bin 41;

[0042] The battery materia...

Embodiment 2

[0055] A method and device for recycling waste lithium batteries, comprising the following steps:

[0056] Take 300kg of waste energy storage lithium batteries, the battery type is lithium iron phosphate battery, the specification is 180Ah square steel shell battery, and the external dimensions are 178 mm×278 mm×70mm. Carry out recycling according to the following method steps.

[0057]Other contents and operations are the same as in Example 1, except that in step (1), the rolling force is between 3000 Newton and 5000 Newton, and the primary debris material with a particle size of 30-40 mm is obtained after rolling and crushing. In step (2), the knife crusher 3 rotates at a speed of 2000 rpm, and the primary debris material contacts the cutter head of the high-speed rotating knife crusher 3 at an angle of 70 degrees, and the particle size of the obtained secondary debris material is The diameter size is 2-5mm. During the crushing, cutting and crushing process, the electrolyt...

Embodiment 3

[0059] A method and device for recycling waste lithium batteries, comprising the following steps:

[0060] Take 200kg of waste laptop lithium batteries, the battery type is lithium cobalt oxide battery, the specification is 3000mAh square cylindrical battery, the external dimensions are 18mm in diameter and 65mm in height. Carry out recycling according to the following method steps.

[0061] Other contents and operations are the same as in Example 1, except that in step (1), the rolling force is between 3000 Newton and 4000 Newton, and the primary debris material with a particle size of 25-40 mm is obtained after rolling and crushing. In step (2), the knife crusher 3 rotates at a speed of 1800 rpm, and the primary debris material contacts the cutter head of the high-speed rotating knife crusher 3 at an angle of 45 degrees, and the particle size of the obtained secondary debris material is The diameter size is 15-20mm. During the crushing, cutting and crushing process, the el...

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Abstract

The invention relates to a method for separating and collecting all components of waste lithium batteries and a separation and collection device, which mainly utilizes simple dry methods such as mechanical crushing, vacuum separation, vibration screening, specific gravity separation, and air flow separation to realize electrode extraction in waste lithium batteries. Separation and collection of materials, current collector metals, plastic diaphragms, and battery casings; the separation and collection process does not introduce any chemical reagents, and the entire process is fully automated. At the same time, electrolytes, dust, etc. are collected and processed, with high recycling efficiency, green and low carbon, Environmental protection, energy saving, easy industrialization and other characteristics.

Description

technical field [0001] The invention belongs to the technical field of storage batteries, and in particular relates to a method and a separation and collection device for separating and collecting materials of all components of waste lithium batteries. Background technique [0002] Lithium-ion batteries have been rapidly developed and widely used in the fields of grid energy storage, electric vehicles, computers, communications, and consumer electronics products, and the scale and quantity have continued to expand. According to the service life of batteries, by 2024, the cumulative amount of waste lithium batteries scrapped will be It will reach more than 1 million tons and will show an explosive cumulative growth trend. The cumulative effect of its health, environment, and safety hazards will be multiplied and cannot be ignored. If it cannot be recycled effectively, it will also cause a waste of resources. Carrying out the recycling and utilization of waste batteries can r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54
CPCY02W30/84
Inventor 赵光金唐国鹏吴文龙
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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