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Method for preparing ternary hydroxide from nickel cobalt manganese recycled from waste lithium ion batteries through 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 inconvenient production and difficult realization, and achieve labor saving, utilization rate improvement, and large-scale convenient effect

Active Publication Date: 2017-09-01
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 manganese recycled from waste lithium ion batteries through liquid phase method
  • Method for preparing ternary hydroxide from nickel cobalt manganese recycled from waste lithium ion batteries through liquid phase method
  • Method for preparing ternary hydroxide from nickel cobalt manganese recycled from waste lithium ion batteries through 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 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;

[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 the...

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 and manganese in waste lithium ion batteries recovered by a liquid phase method, belonging to the technical field of metallurgical recovery of valuable metals, and solves the increasingly prominent problem of recycling waste lithium ion batteries. question. The invention uses waste lithium ion batteries as raw materials, and the main production steps include: dismantling and crushing, pulping, leaching, copper removal by extraction, iron and aluminum removal by precipitation, and preparation of nickel-cobalt-manganese ternary hydroxide. In the invention, the whole battery is crushed and then processed, no harmful gas is generated in the whole process of recovery and preparation, and green recovery is realized from the root. Raw material requirements, the entire production process is more convenient to operate, and the product is more pure, 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 Applications(China)
IPC IPC(8): C01G53/04H01M10/54
CPCY02W30/84C01G53/04C01P2004/82C01P2006/80H01M10/54
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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