A method for treat Ni-Co-Mn ternary waste lithium battery

A technology for waste lithium batteries and treatment methods, which is applied in the field of treatment of nickel-cobalt-manganese ternary waste lithium batteries, can solve the problems of large capital and technical investment, and achieve the effect of improving economic value

Pending Publication Date: 2019-01-22
深圳佳彬科技有限公司
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  • Abstract
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Problems solved by technology

[0008] Among the ternary battery recycling methods of the prior art, some methods only reclaim nickel and cobalt elements, some make nickel-cobalt-manganese hydroxide precursors, and some only recycle lithium elements, and the extraction method used in the recycling process Technology, capital and technology investment in industrial production is also very large, lack of a multi-level recovery technology for nickel-cobalt-manganese ternary batteries

Method used

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  • A method for treat Ni-Co-Mn ternary waste lithium battery
  • A method for treat Ni-Co-Mn ternary waste lithium battery
  • A method for treat Ni-Co-Mn ternary waste lithium battery

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Embodiment 1

[0033] figure 1 It is a schematic flowchart of a treatment method for nickel-cobalt-manganese ternary waste lithium batteries provided by the embodiment of the present invention. Such as figure 1 As shown, the method includes the following steps:

[0034] Discharge the nickel-cobalt-manganese ternary waste lithium battery to below 2.0V, put it into the crusher for crushing and dismantling, and then use the combination equipment of vibration screening and airflow separation to realize the separation of positive and negative electrode mixed powder, aluminum powder and copper powder in the battery Separate and collect.

[0035] Put the positive and negative electrode mixed powder into a vacuum furnace, pass through a nitrogen atmosphere, and treat it at a high temperature of 400°C-600°C for 5-10 hours, and collect the tail gas.

[0036] Add a quantitative concentration of 4-10mol / L dilute sulfuric acid solution and a commercially available hydrogen peroxide solution with a mas...

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Abstract

The invention relates to a treatment method for a Ni-Co-Mn ternary waste lithium battery, which can recover high-purity lithium carbonate powder and Ni-Co-Mn ternary precursor from Ni-Co-Mn ternary waste lithium battery, achieves high purity and no impurity phase, and improves economic value of power battery recovery.

Description

technical field [0001] The invention relates to the field of resources in new energy lithium batteries, in particular to a treatment method for nickel-cobalt-manganese ternary waste lithium batteries. Background technique [0002] In recent years, new energy vehicles have developed rapidly, and the technical route has also transitioned from the early lithium iron phosphate battery to the high-capacity nickel-cobalt-manganese ternary battery. The metal elements contained in ternary batteries include nickel, cobalt, manganese, lithium, aluminum, copper, etc. On the one hand, the prices of metals such as cobalt, lithium, and nickel continue to rise; May pollute soil and water sources. Therefore, the recycling of ternary batteries has economic and environmental benefits. [0003] The market scale created by recycling nickel, cobalt, manganese, lithium, aluminum, copper and other metals from waste power lithium batteries will begin to explode in 2018, reaching 5.2 billion yuan,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54C22B7/00
CPCH01M10/54C22B7/00Y02W30/84Y02P10/20
Inventor 杨跃彬李浩
Owner 深圳佳彬科技有限公司
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