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Method for preparing ternary hydroxide from nickel, cobalt and manganese in waste lithium ion batteries recovered by liquid phase method

A lithium-ion battery and hydroxide technology, applied in the direction of nickel oxide/nickel hydroxide, battery recycling, recycling technology, etc., can solve the problems of difficult realization and inconvenient production, so as to improve utilization rate, save labor, and scale up convenient effect

Active Publication Date: 2019-01-25
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is only for the positive electrode of waste batteries, and it needs to be manually sorted from the negative electrode and shell of the battery, which is not easy to achieve in actual production operations, especially when large-scale industrialization will bring inconvenience to production

Method used

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  • Method for preparing ternary hydroxide from nickel, cobalt and manganese in waste lithium ion batteries recovered by liquid phase method
  • Method for preparing ternary hydroxide from nickel, cobalt and manganese in waste lithium ion batteries recovered by liquid phase method
  • Method for preparing ternary hydroxide from nickel, cobalt and manganese in waste lithium ion batteries recovered by liquid phase method

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Effect test

Embodiment 1

[0030] The method for preparing ternary hydroxide from nickel-cobalt-manganese in the waste lithium-ion battery recovered by the liquid phase method comprises the following steps:

[0031] (1) Dismantling and crushing: Soak the waste lithium-ion batteries in a 5% sodium chloride solution for discharge, disassembly, and direct crushing without sorting the positive and negative electrodes, and the size of the battery fragments is 5-30mm. After vibrating sieving, the large copper and aluminum flakes on the screen are recovered, and the under-sieve is the electrode active material powder;

[0032] (2) Slurry: add deionized water to the electrode active material powder obtained in step (1), control the liquid-solid ratio of slurry to 2:1, slurry temperature to 30°C, and slurry time to 0.1h , to obtain a slurry solution of the electrode active material;

[0033] (3) Leaching: Add concentrated sulfur to the electrode active material slurry solution obtained in step (2) according to ...

Embodiment 2

[0041] The method for preparing ternary hydroxide from nickel-cobalt-manganese in the waste lithium-ion battery recovered by the liquid phase method comprises the following steps:

[0042] (1) Dismantling and crushing: Soak waste lithium-ion batteries in a 5% sodium chloride solution for discharge, disassembly, and direct crushing without sorting the positive and negative electrodes to obtain battery fragments with a size of 5-30mm. After vibrating sieving, the large copper and aluminum flakes on the screen are recovered, and the under-sieve is the electrode active material powder;

[0043] (2) Slurry: Add deionized water to the electrode active material powder obtained in step (1), control the liquid-solid ratio of slurry to 3:1, slurry temperature to 40°C, and slurry time to 0.3h , to obtain a slurry solution of the electrode active material;

[0044] (3) Leaching: Add concentrated sulfur to the electrode active material slurry solution obtained in step (2) according to the...

Embodiment 3

[0052] The method for preparing ternary hydroxide from nickel-cobalt-manganese in the waste lithium-ion battery recovered by the liquid phase method comprises the following steps:

[0053] (1) Dismantling and crushing: Soak waste lithium-ion batteries in a 5% sodium chloride solution for discharge, disassembly, and direct crushing without sorting the positive and negative electrodes to obtain battery fragments with a size of 5-30mm. After vibrating sieving, the large copper and aluminum flakes on the screen are recovered, and the under-sieve is the electrode active material powder;

[0054] (2) Slurry: Add deionized water to the electrode active material powder obtained in step (1), control the liquid-solid ratio of slurry to 4:1, slurry temperature to 60°C, and slurry time to 0.5h , to obtain a slurry solution of the electrode active material;

[0055] (3) Leaching: add concentrated sulfur to the electrode active material slurry solution obtained in step (2) according to the...

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Abstract

The invention discloses a method for preparing ternary hydroxide from nickel cobalt manganese recycled from waste lithium ion batteries through a liquid phase method, belongs to the technical field of metallurgically recycling valuable metal and solves the increasingly prominent problem of recycling waste lithium ion batteries. The method disclosed by the invention utilizes the waste lithium ion batteries as a raw material and comprises the main production steps of disassembling and breaking, slurrying, leaching out, removing copper through an extraction method, removing iron and aluminum through a precipitation method and preparing nickel cobalt manganese ternary hydroxide. According to the method, the complete batteries are broken and treated, the whole recycling and preparing process has no harmful gas generation, green recovery is achieved fundamentally, the final prepared product of the nickel cobalt manganese ternary hydroxide also can meet requirements of raw materials for preparing nickel cobalt manganese ternary batteries, the whole production process is more convenient to operate, the product is purer, and the method is suitable for industrialization.

Description

technical field [0001] The invention relates to a method for preparing ternary hydroxide from nickel, cobalt and manganese in waste lithium ion batteries recovered by a liquid phase method, and belongs to the technical field of recovery of waste lithium ion batteries. Background technique [0002] Lithium-ion batteries have become the research and application hotspots of today's batteries because of their advantages such as high energy density, high working voltage, good safety, long cycle life and small self-discharge. With the rapid replacement of portable electronic products, more and more waste lithium-ion batteries are being eliminated. On the one hand, the direct disposal of used lithium-ion batteries will cause great pollution to the environment, in which heavy metals enter the human body through the atmosphere, soil, water, etc., causing damage to human health and even carcinogenicity. On the other hand, the recovery of nickel-cobalt-manganese metal elements in wast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G53/04H01M10/54
CPCY02W30/84
Inventor 刘玉强常全忠甘梅王甲琴曹笃盟李兰兰柴艮风陈天翼常雪洁
Owner JINCHUAN GROUP LIMITED
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