Method for synchronously separating and recycling cobalt, lithium and manganese from cathode material of waste lithium ion battery

A lithium-ion battery and positive electrode material technology, which is applied in the field of waste lithium battery waste treatment and resource recycling, can solve the problems of limited mass transfer of electron acceptors, high impurity content in leachate, and poor microbial tolerance, so as to reduce production capacity and disposal costs, saving resources and energy, and easy operation
CN108808151AActive Publication Date: 2018-11-13KANFORT JIANGMEN ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KANFORT JIANGMEN ENVIRONMENTAL TECH CO LTD
Publication Date
2018-11-13

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Abstract

The invention discloses a method for synchronously separating and recycling cobalt, lithium and manganese from a cathode material of a waste lithium ion battery. The method comprises the following steps of firstly, uniformly dividing a sample area of an electrolytic cell into four subareas by a polyethylene grid, respectively filling the same amount of solid powder, and slowly injecting deionizedwater into the third subarea; inoculating a sulfur oxide thiobacillus solution into the second subarea, placing the electrolyte cell after inoculating for 2 to 4 days at the room temperature, connecting the electrolyte cell and a direct-current power source through a cathode and an anode, and maintaining the electrolyte cell to run for 9 to 18 days; collecting the activated carbon, cathode precipitate and cathode liquid, so as to separate and recycle the cobalt, lithium and manganese from the cathode material of the waste lithium ion battery. The method has the advantages that the recycling process is greatly simplified, the operation is simple and convenient, the feasibility is strong, the production amount of secondary pollution waste liquid and the treatment cost in the process are reduced, and the resource and energy source are certainly saved.
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Description

technical field

[0001] The invention belongs to the research field of waste lithium battery waste treatment and resource recovery and utilization, and specifically relates to a method to realize the extraction of three elements of cobalt, lithium and manganese in the positive electrode material of waste lithium ion batteries under the premise of normal temperature environment and leaching ions without secondary separation. A method for efficient separation and recovery. Background technique

[0002] Single crystal cobalt minerals are very rare on the earth, and cobalt mainly exists in arsenic-cobalt ore, copper-cobalt ore, nickel-cobalt ore and other minerals. In recent years, the growth rate of global cobalt production has been close to zero, which has severely restricted the expansion of the lithium-ion battery (LIB) industry. Lithium (Li) is widely used in lithium batteries, and its supply imbalance has led to the current lithium carbonate (Li 2 CO 3 ) The market price...

Claims

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