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Separation device, stripping device and recovery method of battery positive electrode

A technology of stripping device and separation device, which is applied in the field of chemical material recycling, can solve the problems of difficult and complex handling and many fluids, and achieve the effect of short process flow, simple equipment and high stripping rate

Active Publication Date: 2019-11-05
GUANGDONG JIANA ENERGY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the positive electrodes of lithium batteries on the market are generally electrode sheets or powder materials. When recycling, the powder materials are crushed, but there are many current collectors in them, which makes the processing difficult and complicated.

Method used

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  • Separation device, stripping device and recovery method of battery positive electrode
  • Separation device, stripping device and recovery method of battery positive electrode
  • Separation device, stripping device and recovery method of battery positive electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Embodiment 1 adopts the recycling method of the present invention to recycle the positive electrode of the battery

[0081] Raw material: Lithium battery cathode sheet material with aluminum foil as current collector. Analysis and detection of its composition: Co content 4.83%, Ni content 15.19%, Mn content 8.46%, Li content 3.82%, Al content 17.13%.

[0082] Recycling method:

[0083] Separation: Put the positive electrode of the lithium battery in the screening device 01 of the 40-mesh separation device, bake it at 220°C for 2 hours, vibrate and screen the material tray once every hour, and the melted fluid falls through the sieve holes and falls on the screening device In the receiving device 02 that is clamped with 01, what remains on the screening device 01 is the first product.

[0084] Peeling: The peeling device 03 is a rectangular trough-shaped device with a ratio of length, width and height of 7:1:1. The distribution density of the spray device 031 in the rea...

Embodiment 2

[0086] Embodiment 2 adopts the recycling method of the present invention to recycle the positive electrode of the battery

[0087] Raw material: Lithium battery cathode sheet material with aluminum foil as current collector. Analysis and detection of its composition: Co content 4.83%, Ni content 15.19%, Mn content 8.46%, Li content 3.82%, Al content 17.13%.

[0088] Recycling method:

[0089] Separation: Put the positive electrode of the lithium battery in the screening device 01 of the 30-mesh separation device, bake it at 250°C for 2 hours, vibrate and screen the material tray once every hour, and the melted fluid falls through the sieve holes and falls on the screening device In the receiving device 02 that is clamped with 01, what remains on the screening device 01 is the first product.

[0090] Peeling: The peeling device 03 is a rectangular trough-shaped device with a ratio of length, width and height of 7:1:1. The distribution density of the spray device 031 in the rea...

Embodiment 3

[0092] Embodiment 3 adopts the recovery method of the present invention to recycle the positive electrode of the battery

[0093] Raw material: Lithium battery cathode sheet material with aluminum foil as current collector. Analysis and detection of its composition: Co content 4.83%, Ni content 15.19%, Mn content 8.46%, Li content 3.82%, Al content 17.13%.

[0094] Recycling method:

[0095] Separation: Put the positive electrode of the lithium battery in the screening device 01 of the 10-mesh separation device, bake it at 200°C for 4 hours, vibrate and screen the tray once every hour, and the melted fluid falls through the sieve holes and falls on the screening device In the receiving device 02 that is clamped with 01, what remains on the screening device 01 is the first product.

[0096]Peeling: The peeling device 03 is a cylindrical trough device with a ratio of length and diameter of 7:1, the distribution density of the spray device 031 in the reaction tank 032 is 84 piec...

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Abstract

The present invention relates to the technical field of chemical material recovery and utilization, in particular to a separation device, a stripping device and a recovery method of a battery positiveelectrode. The separation device structure comprises a screening device and a material receiving device. The screening device is detachably connected with the material receiving device, and the screening device is located above the material receiving device. The stripping device structure comprises a reaction tank and at least one ejection device. The ejection device is arranged on side wall of the reaction tank and / or the inner wall of one end of the reaction tank. The recovery method of the lithium ion battery positive electrode comprises the steps of separation and stripping. The separation device and the stripping device are simple in structure and easy and convenient to operate. The recovery method is short in process flow, simple in equipment and high in stripping rate without by-products added in the production process, and the stripped current collector is pure without inclusion of current collector, electrolyte and the like so as to facilitate subsequent recovery treatment.

Description

technical field [0001] The invention relates to the technical field of recycling chemical materials, in particular to a separation device, a stripping device and a method for recycling positive electrodes of batteries. Background technique [0002] In today's society, various portable electrical appliances such as mobile phones, laptop computers, and toys powered by lithium-ion batteries are widely used. The scrapping of these batteries or electrical appliances will generate a large number of waste lithium-ion batteries, which will become a new source of environmental pollution if they are not recycled. At the same time, it is also a great waste of resources. Lithium-ion batteries are generally composed of a casing, a positive electrode, a separator, a negative electrode, and an electrolyte. The shell is usually made of stainless steel, and the positive electrode is composed of about 90% positive electrode active material lithium cobalt oxide, lithium manganese oxide or ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54B07B1/28
CPCB07B1/28H01M10/54Y02W30/84
Inventor 彭灿颜祥军汤依伟文定强张颖
Owner GUANGDONG JIANA ENERGY TECH CO LTD
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