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Method for recycling copper foils and aluminum foils in waste lithium ion batteries

A lithium-ion battery and copper foil technology, applied in battery recycling, recycling technology, recycling by waste collectors, etc., can solve the problems of low efficiency, complicated process, high cost, etc., and achieve adjustment and optimization, mature technology, and rich experience Effect

Inactive Publication Date: 2017-10-24
深圳市恒创睿能环保科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

These methods have their own advantages, but the process is complicated, the efficiency is not high, the cost is high, and it is not environmentally friendly.

Method used

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  • Method for recycling copper foils and aluminum foils in waste lithium ion batteries

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Embodiment Construction

[0018] Please refer to figure 1 Shown, it has shown a kind of method for reclaiming copper foil and aluminum foil in the waste lithium ion battery of preferred embodiment of the present invention, comprises the following steps:

[0019] (1) Put the discharged waste lithium-ion battery into the roller crusher and vertical impact crusher, and put the product after two stages of crushing into the vibrating screen for screening and classification. The product is divided into three grades, Take the intermediate particle size; in this embodiment, when discharging, place the waste lithium-ion battery in a NaCl solution with a mass fraction of 5% and discharge it for 48 hours, and then carry out coarse crushing on the discharged lithium-ion battery through a roller crusher, and then coarsely crush The final product is finely crushed by a vertical screenless impact crusher, and the finely crushed product is screened by a vibrating screen, and the three particle sizes are +4mm, -4mm+0.2...

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Abstract

The invention discloses a method for recycling copper foils and aluminum foils in waste lithium ion batteries. The method comprises the following steps: (1) putting the discharged waste lithium ion batteries into a roller crushing machine and a vertical impact crushing machine, putting products after two stages of crushing into a vibrating screen for screening classification, dividing the products into three size fractions, and taking the products with an intermediate size fraction; (2) carrying out high-voltage electrostatic separation on a mixture with the intermediate size fraction, removing diaphragms and plastic, and putting the products into a horizontal crushing machine, so that the copper foil and aluminum foil mixture is crushed into the target size fraction; and (3) separating the products in the horizontal crushing machine through a vibration fluidized bed, discharging light products through the upper part to obtain the aluminum foils, and discharging heavy products through a scraping plate to obtain the copper foils. According to the method disclosed by the invention, separation and recycling of the copper foils and the aluminum foils in the waste lithium ion batteries are realized, and the method has the advantages of high operability, environmental protection, low cost and the like.

Description

technical field [0001] The invention relates to the technology in the field of recycling waste batteries, in particular to a method for recycling copper foil and aluminum foil in waste lithium-ion batteries. Background technique [0002] Lithium-ion batteries are widely used in notebook computers, mobile phones, cameras and other electronic devices due to their advantages of high energy density, light weight, high voltage, safety and less environmental pollution. At the same time, the rapidly developing new energy automobile industry in recent years also uses lithium-ion battery packs as its power source. Due to the impact of lithium-ion battery cycle life, the number of lithium-ion batteries that will be scrapped every year is staggering, and this number is increasing year by year. Waste lithium-ion batteries contain a variety of valuable metals and harmful substances, so the effective recycling of waste lithium-ion batteries not only has high economic benefits, but also r...

Claims

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Application Information

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IPC IPC(8): H01M10/54
CPCY02W30/84H01M10/54
Inventor 陈志鹏
Owner 深圳市恒创睿能环保科技有限公司
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