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A physical separation method and equipment for a waste lithium battery wet recovery production line

A waste lithium battery and production line technology, applied in battery recycling, waste collector recycling, recycling technology, etc., can solve the problems of polluting the production line environment, endangering workers' health, etc., and achieve the goal of improving efficiency, reducing complexity, and reducing usage Effect

Active Publication Date: 2021-07-27
GANZHOU HIGHPOWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0025] Since the crushing process cannot be carried out in a completely closed environment, the volatilization of organic matter during the crushing process will pollute the environment around the production line, thereby endangering the health of workers

Method used

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  • A physical separation method and equipment for a waste lithium battery wet recovery production line
  • A physical separation method and equipment for a waste lithium battery wet recovery production line
  • A physical separation method and equipment for a waste lithium battery wet recovery production line

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Embodiment Construction

[0056] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0057] A physical separation method for waste lithium battery wet recovery production line,

[0058] Include the following steps:

[0059] Step 1, discharging the lithium battery;

[0060] Step 2, dismantling the lithium battery after discharge treatment to obtain negative electrode copper foil and positive electrode material containing graphite negative electrode material; crushing the positive electrode material into positive electrode powder;

[0061] The pulverized positive electrode powder is firstly recovered through flotation to recover Cu material, and then filtered and dehydrated to obtain the primary positive electrode powder. The primary positive electrode powder is processed in the subsequent process.

[0062] The flotation equipment is a flotation machine, and the filtration and dehydration equipment is a centrifugal dehydrator.

[...

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Abstract

The invention discloses a physical separation method for a waste lithium battery wet recovery production line, comprising the following steps: step 1, discharging the lithium battery; step 2, disassembling the discharged lithium battery and obtaining graphite-containing negative electrode materials Negative electrode copper foil and positive electrode material; the positive electrode material is crushed into positive electrode powder; the crushed positive electrode powder is firstly recovered through flotation to recover Cu material, and then filtered and dehydrated to obtain the primary positive electrode powder. The positive electrode powder is processed in the subsequent process; the present invention physically sorts the positive electrode material in the pretreatment stage of lithium battery wet recovery, and selects non-ferrous metal Cu material, which reduces the complexity of the subsequent leaching process and reduces the The use of leachate is improved and the efficiency of recovery is improved, which is worthy of vigorous promotion.

Description

technical field [0001] The invention relates to the technical field of wet recovery of waste lithium batteries, in particular to a physical separation method for a waste lithium battery wet recovery production line. Background technique [0002] With the increasing shortage of global fossil resources and the urgent need for environmental protection, the development of electric vehicles to reduce resource consumption and reduce environmental pollution is gradually becoming a broad consensus. In recent years, the state has given great support to electric vehicles, which has led to a sharp increase in the production of electric vehicles. As of 2016, China has produced a total of 1.014 million electric vehicles, and the number of electric vehicles in the market is also close to 1 million. [0003] However, the large number of electric vehicles entering the market will inevitably bring about the problem of recycling and disposal of batteries at the end of their life. According t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/54B03D1/14C22B7/00
CPCY02W30/84Y02P10/20
Inventor 区汉成孟笑魏长寿宁志敏朱诗秀许泽炎杨胜
Owner GANZHOU HIGHPOWER TECH CO LTD