Recovering method for valuable metal in waste nickel-cobalt-manganese-lithium ion battery

A technology of nickel-cobalt-manganese-lithium and valuable metals, which is applied in the field of recycling valuable metals in waste nickel-cobalt-manganese lithium-ion batteries, can solve the problems of high processing cost, difficult application, and large number of processes, and achieve process and equipment simplification , simplify the reaction equipment, simplify the effect of the reaction process

Inactive Publication Date: 2018-12-28
深圳市华慧云科技有限公司
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Problems solved by technology

The two methods have their own advantages and disadvantages: the hydrometallurgy method can recover most metals, but it has extremely high requirements for the classification and management of lithium-ion batteries. It is necessary to classify the batteries according to the cathode, anode and die

Method used

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  • Recovering method for valuable metal in waste nickel-cobalt-manganese-lithium ion battery

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Example Embodiment

[0047] The technical solutions of the present invention will be described in detail below with reference to the embodiments.

[0048] A method for recovering valuable metals in waste nickel-cobalt-manganese lithium-ion batteries, comprising the following steps:

[0049] (1) Pretreatment process

[0050] The waste nickel-cobalt-manganese lithium-ion battery is disassembled, discharged and broken, and the positive and negative electrode materials are roughly selected, and the positive and negative electrode materials are pulverized; sieved to obtain powder particles; in order to remove the soluble in the powder particles Water-soluble alkali metal salts such as potassium and sodium of water, add water to the powder particles and stir, and stir to obtain a cleaning liquid slurry, and the solid-liquid separation of the cleaning liquid slurry, the obtained powder particles are the solid valuable Metal recycling raw materials;

[0051] (2) The leaching process of nickel, cobalt, m...

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Abstract

The invention relates to a recovering method for valuable metal in a waste nickel-cobalt-manganese-lithium ion battery. The recovering method comprises the steps that (1) the pretreatment procedure isconducted, specifically, the waste nickel-cobalt-manganese-lithium ion battery is disassembled, discharged and broken, and a cathode material and an anode material are roughly selected from the wastenickel-cobalt-manganese-lithium ion battery and broken; sieving is conducted, and powder particles are obtained; and in order to remove water-soluble alkali metal salt such as potassium and sodium which are soluble in water in the powder particles, the powder particles are added with the water and stirred into cleaning liquid slurry, the cleaning liquid slurry is subjected to solid-liquid separation, and then, the obtained powder particles are solid valuable metal recovering raw materials.

Description

technical field [0001] The invention relates to a method for recovering valuable metals in waste nickel-cobalt-manganese lithium-ion batteries. Background technique [0002] Lithium-ion batteries, using lithium alloys [0003] The metal oxide is the positive electrode material, and the graphite is the negative electrode material. According to statistics, the consumption of lithium-ion batteries in the world was 500 million in 2000, and reached 7 billion in 2015. Since the service life of lithium-ion batteries is limited, a large number of waste lithium-ion batteries are also produced. Taking China as an example, it is estimated that in 2020, more than 25 billion lithium batteries will be discarded in my country, with a total weight of more than 500,000 tons. Abandoned lithium batteries contain a large amount of precious metals in the positive electrode, among which cobalt accounts for 5-20%, nickel accounts for 5-12%, manganese accounts for 7-10%, lithium accounts for 2-5...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B23/00C22B26/12C22B47/00C22B59/00H01M10/54
CPCC22B7/006C22B23/04C22B26/12C22B47/00C22B59/00H01M10/54Y02P10/20Y02W30/84
Inventor 刘小曲
Owner 深圳市华慧云科技有限公司
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