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Lithium ion battery charged pretreatment equipment and method

A lithium-ion battery, pretreatment technology, applied in secondary batteries, battery recycling, grain processing, etc., can solve problems such as endangering the personal safety of operators, harmful substances entering the environment, and electrolyte volatilization and leakage. The effect of preventing personal safety and fast drying

Pending Publication Date: 2019-08-16
ZHEJIANG HUAYOU COBALT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the recycling of lithium-ion batteries is mainly based on the combination of physical pretreatment and wet method / fire method. During pretreatment, the discharge of lithium-ion batteries is generally intervened by manual intervention, which is prone to dangers such as rapid heat dissipation, fire, explosion, etc., endangering the personal life of operators. Safety
During the crushing and sorting process of lithium-ion batteries, electrolyte volatilization and leakage will occur, and LiPF6 in the electrolyte is very easy to react with water to form highly corrosive HF, and release a large amount of heat, which is easily absorbed in the electrolyte for a long time Non-toxic organic solvents are harmful to the human respiratory tract, and harmful substances enter the environment, which will pollute the surrounding water, air and soil, and further harm human health

Method used

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  • Lithium ion battery charged pretreatment equipment and method
  • Lithium ion battery charged pretreatment equipment and method
  • Lithium ion battery charged pretreatment equipment and method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1-Figure 3 As shown, a lithium-ion battery charged pretreatment device described in this embodiment includes a wet crusher 1, a powder recovery tank 2, a screen conveyor belt 3, a material collection conveyor belt 4, a belt vacuum filter press 5 and a boiling Dryer 6; the wet crusher is set on a horizontal fixed table, the discharge port 14 of the wet crusher is connected to the feed end of the screen conveyor belt, and the powder recovery tank is arranged on the screen conveyor belt and the discharge port of the wet crusher Below, the opening of the powder recovery tank is upward, which is used to collect the cleaning solution and positive and negative electrode powder falling from the screen conveyor belt and the outlet of the wet crusher; the belt vacuum filter is set on the screen conveyor belt Below, the belt-type vacuum filter is a sealed structure, which is connected with the powder recovery tank, and the feed port of the belt-type vacuum filter i...

Embodiment 2

[0039] A method for processing a lithium-ion battery by the lithium-ion battery charging pretreatment device of embodiment 1, comprising the following steps:

[0040] 1. The wet crusher is in the initial state, that is, the material baffle, solution switch valve, and solution baffle are all in the closed state; the transmission mechanism intermittently transports the charged lithium-ion battery material to the material storage box, and opens the solution switch valve to make lithium The ion battery cleaning solution enters the wet crushing chamber, and when it reaches a certain capacity, the solution switch valve is closed;

[0041] 2. Start the motor, the two shredding shafts start to rotate in opposite directions, and the material baffle is gradually opened under the drive of the cylinder, so that the lithium-ion battery enters the wet crushing chamber, and the material baffle is reset; Under the action of shearing, it is broken into flakes, and part of the black powder of t...

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Abstract

The invention relates to the technical field of lithium ion battery recycling, in particular to lithium ion battery charged pretreatment equipment and a treatment method. The lithium ion battery charged pretreatment equipment designed by the invention comprises a wet type crusher, a powder material recovery tank, a screen net conveyor belt, a material collection conveyor belt, a belt type vacuum filter press and a boiling dryer. By means of the lithium ion battery charged pretreatment equipment and the treatment method, automatic material feeding, charged wet type crushing, solid-liquid separating, material collecting, material drying and automatic material discharging are integrated into a whole, charged crushing and harmless treating of lithium ion batteries can be realized, the lithiumion batteries of various specifications and models can be treated, furthermore, harmless operations are performed on the lithium ion batteries, and the lithium ion battery charged pretreatment equipment is simple in structure and high in integration level.

Description

technical field [0001] The invention relates to the technical field of lithium ion battery recycling, in particular to a charging pretreatment device and a treatment method for lithium ion batteries. Background technique [0002] Lithium-ion batteries have the advantages of large capacity, high energy density, no memory, and small self-discharge, and have been unanimously recognized by battery manufacturers and automobile manufacturers. Lithium-ion batteries are the research and development and application hotspots of secondary batteries in the world today. With the rapid development of electric vehicles and large-scale energy storage markets, the output of lithium-ion power batteries, which currently occupy the largest market share, is also growing rapidly, and the number of lithium-ion batteries produced is bound to show a blowout growth. Lithium-ion batteries contain a large amount of scarce non-ferrous metal elements such as cobalt, lithium, nickel, manganese, copper, al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C18/14B02C18/22B02C18/24B02C23/18B02C23/10H01M10/54H01M10/0525
CPCB02C18/14B02C18/2216B02C18/2291B02C18/24B02C23/18B02C18/0084B02C23/10H01M10/54H01M10/0525Y02W30/84Y02E60/10
Inventor 鲍伟孙峙李连平刘春伟康飞郑晓洪
Owner ZHEJIANG HUAYOU COBALT
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