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A separation device, a stripping device, and a method for recycling positive electrodes of batteries

A recycling method and battery positive electrode technology, which is applied in the field of chemical material recycling, can solve the problems of difficult and complicated handling and many fluids, and achieve the effects of short process flow, convenient feeding and retrieving, good penetration and cleaning power

Active Publication Date: 2021-08-24
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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  • A separation device, a stripping device, and a method for recycling positive electrodes of batteries
  • A separation device, a stripping device, and a method for recycling positive electrodes of batteries
  • A separation device, a stripping device, and a method for recycling positive electrodes of batteries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Recovering method of the present embodiment of the invention a positive battery recycling

[0081] Starting material: aluminum foil as a positive electrode lithium electrode current collector sheet material, having a composition analysis and detection: Co content of 4.83%, Ni content of 15.19%, Mn content of 8.46%, Li content of 3.82%, Al content of 17.13%.

[0082] Recovery methods:

[0083] Separation: The lithium battery cathode screening apparatus 0140 placed object separation device, baked at a temperature of 220 ℃ 2 hours every hour a vibratory screening tray, melted and fluid falls through the sieve screening device splice device 01 of the snap 02, 01 remaining on the screening device is a first product.

[0084] Release: release means 03 is a length and breadth ratio of 7: 1: 1 means a rectangular groove, the ejection means 031 in the distribution density of the reaction vessel 032 is 70 / m, ejection means 031 of injection port an inner diameter of 1.5mm, the eject...

Embodiment 2

[0086] Using the recovery method of the present invention Example 2 The positive electrode of the battery is recovered

[0087] Starting material: aluminum foil as a positive electrode lithium electrode current collector sheet material, having a composition analysis and detection: Co content of 4.83%, Ni content of 15.19%, Mn content of 8.46%, Li content of 3.82%, Al content of 17.13%.

[0088] Recovery methods:

[0089] Separation: The lithium battery cathode unit 01 placed on a 30 mesh sieve separation device, baked at a temperature of 250 ℃ 2 hours every hour a vibratory screening tray, melted and fluid falls through the sieve screening device splice device 01 of the snap 02, 01 remaining on the screening device is a first product.

[0090] Release: release means 03 is a length and breadth ratio of 7: 1: 1 means a rectangular groove, the ejection means 031 in the distribution density of the reaction vessel 032 was 90 / m, ejection means 031 of injection port an inner diameter o...

Embodiment 3

[0092] 3 recovery method of the present embodiment of the invention the positive electrode cell recycling

[0093] Starting material: aluminum foil as a positive electrode lithium electrode current collector sheet material, having a composition analysis and detection: Co content of 4.83%, Ni content of 15.19%, Mn content of 8.46%, Li content of 3.82%, Al content of 17.13%.

[0094] Recovery methods:

[0095] Separation: The lithium battery cathode screening device 0110 placed object separation device, baked at a temperature of 200 ℃ 4 h every hour a vibratory screening tray, melted and fluid falls through the sieve screening device splice device 01 of the snap 02, 01 remaining on the screening device is a first product.

[0096]Release: release means 03 is a length and diameter ratio of 7: 1 cylindrical groove means, the density distribution apparatus 031 in the reaction vessel 032 of the injector 84 is / m², inner diameter of the injection port of the injection means 031 is 2mm, ...

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Abstract

The invention relates to the technical field of recycling chemical materials, and specifically provides a separation device, a stripping device and a method for recycling positive electrodes of batteries. The separation device structure of the present invention includes a screening device and a material receiving device; the screening device is detachably connected to the material receiving device, and the screening device is located above the material receiving device. The peeling device structure of the present invention includes a reaction tank and at least one injection device; the injection device is arranged on the side wall of the reaction tank and / or the inner wall of one end of the reaction tank. The recovery method of the positive electrode of the lithium ion battery of the present invention comprises: separation and stripping. The separation device and the peeling device of the present invention are simple in structure and easy to operate. The recovery method of the present invention has short process flow, simple equipment, high stripping rate, no by-products are added in the production process, and the stripped current collector is pure without inclusion of current collector, electrolyte, etc., which is convenient for subsequent recovery and treatment.

Description

Technical field [0001] The present invention relates to the technical field of chemical recycling of materials, in particular, it relates to a process for recovering separating apparatus, peeling apparatus and a battery positive electrode. Background technique [0002] Nowadays, lithium-ion battery-powered mobile phones, laptop computers, toys and other portable appliances are widely used. These batteries or electrical scrap will produce a large amount of spent lithium ion batteries, as if their recovery process will become a new source of environmental pollution. At the same time, it is also a great waste of resources. A lithium ion battery generally consists of a housing, a positive electrode, separator, negative electrode, electrolyte composition. Often stainless steel housing, about 90% of the positive electrode active material of the positive electrode of lithium cobalt oxide, lithium manganese oxide or lithium nickel cobalt manganese oxide, acetylene black with a surface on...

Claims

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Application Information

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Patent Type & Authority Patents(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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