CN215628354U - Device for extracting lithium element from waste lithium ion battery - Google Patents

Device for extracting lithium element from waste lithium ion battery Download PDF

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Publication number
CN215628354U
CN215628354U CN202120577989.8U CN202120577989U CN215628354U CN 215628354 U CN215628354 U CN 215628354U CN 202120577989 U CN202120577989 U CN 202120577989U CN 215628354 U CN215628354 U CN 215628354U
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chamber
anode
cathode
lithium
lithium ion
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CN202120577989.8U
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郑铁江
曹圣平
陈电华
唐义
马俊华
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Jiangsu Baichuan Gaoke New Material Co ltd
Ningxia Baichuan New Material Co ltd
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Jiangsu Baichuan Gaoke New Material Co ltd
Ningxia Baichuan New Material Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

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  • Water Treatment By Electricity Or Magnetism (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The utility model provides a device for extracting lithium element from waste lithium ion batteries, which comprises an electrode chamber and an electrolysis mechanism, wherein the electrode chamber is arranged in an electrode chamber jacket of an electrode chamber jacket, the electrode chamber jacket comprises a jacket body, and a water inlet butterfly valve and a water outlet butterfly valve are arranged on the jacket body; the anode chamber comprises an anode chamber and a cathode chamber, the anode chamber is communicated with the cathode chamber and is provided with a proton exchange membrane, the top parts of the cathode chamber and the anode chamber are respectively provided with an electrode chamber cover, an anode stirring paddle is arranged in the anode chamber, the upper part of the side wall of the cathode chamber is connected with a cathode gas collecting bottle, and the lower part of the side wall of the cathode chamber is provided with a lithium-rich liquid outlet butterfly valve; the electrolysis mechanism comprises an anode arranged in the anode chamber and a cathode arranged in the cathode chamber, and a voltage-stabilizing direct-current power supply is connected between the anode and the cathode. The device has the advantages of simple equipment structure, simple and convenient operation process, high selectivity, environmental friendliness, high extraction rate and the like, and shows good popularization and application prospects. The device simplifies the lithium element recovery process in the waste battery and gives consideration to the recovery rate and the purity.

Description

Device for extracting lithium element from waste lithium ion battery
Technical Field
The utility model relates to the technical field of battery recovery, in particular to a device for extracting lithium element from waste lithium ion batteries.
Background
During the period of 2015-2018, the output and sales of the Chinese new energy automobile show a high-speed growth situation, the reserved quantity of the new energy automobile is planned to break through 500 million vehicles in 2020, and the recovery quantity of the power battery is estimated to be close to 45.80Gwh (reduced to 30.98 million tons) in 2022. With the rapid growth of the electric automobile industry, the recovery of power batteries becomes an urgent problem to be solved, so as to avoid the waste of resources and reduce the harm to the environment, obtain good economic and ecological benefits, and efficiently and cleanly recover waste lithium ion power batteries becomes necessary.
The currently reported lithium element recovery technology for waste lithium ion batteries mainly comprises a dry method, a wet method, an ion sieve method and a bioleaching method, wherein the dry method technology and the wet method technology are the mainstream. The dry method technology is a method for obtaining lithium carbonate by reducing and roasting waste lithium ion battery powder and then leaching the waste lithium ion battery powder with water. The dry process is relatively simple, but has high energy consumption, and the combustion of other components in the electrolyte solution and the electrode easily causes atmospheric pollution. The wet method technology is a method for recovering lithium element from lithium in the form of lithium carbonate or lithium phosphate after removing impurities and extracting after leaching each valuable component in the waste lithium ion battery with inorganic acid solution. But the wet process has large reagent consumption, long process flow, large sewage generation amount and lower lithium element recovery rate.
Disclosure of Invention
The utility model aims to provide a device for extracting lithium element from waste lithium ion batteries, so as to simplify the operation process of recovering the lithium element from the waste batteries, improve the recovery rate and the recovery purity, save energy and protect environment.
The utility model provides a device for extracting lithium element from waste lithium ion batteries, which comprises an electrode chamber and an electrolysis mechanism, wherein the electrode chamber is arranged in an electrode chamber jacket of an electrode chamber jacket, and the device comprises:
the polar chamber jacket comprises a jacket body, and a water inlet butterfly valve and a water outlet butterfly valve are arranged on the jacket body;
the anode chamber comprises an anode chamber and a cathode chamber, the anode chamber is communicated with the cathode chamber and is provided with a proton exchange membrane, the tops of the cathode chamber and the anode chamber are respectively provided with an electrode chamber cover, an anode stirring paddle is arranged in the anode chamber, the upper part of the side wall of the cathode chamber is connected with a cathode gas collecting bottle, and the lower part of the side wall of the cathode chamber is provided with a lithium-rich liquid outlet butterfly valve;
the electrolysis mechanism comprises an anode arranged in the anode chamber and a cathode arranged in the cathode chamber, and a voltage-stabilizing direct-current power supply is connected between the anode and the cathode.
And a filter screen is arranged on one side of the proton exchange membrane close to the anode chamber.
Preferably, the anode comprises a plurality of cylindrical electrodes.
Preferably, the anode comprises a cylindrical electrode.
Preferably, a silica gel sealing gasket and an O-shaped sealing ring are respectively arranged between the polar chamber cover and the anode chamber and between the polar chamber cover and the cathode chamber.
Preferably, the pole chamber cover is provided with an electric wire outlet, the electric wire and the pole chamber cover are sealed, and the anode stirring paddle is mounted on the pole chamber cover of the anode chamber through a sealing bearing.
Preferably, the bottom of the anode chamber is provided with a residue outlet butterfly valve.
Preferably, the anode stirring paddle adopts an A-310 type stirring paddle.
In the figure: the device comprises a polar chamber jacket 1, a jacket body 11, a water inlet butterfly valve 12, a water outlet butterfly valve 13, a polar chamber 2, an anode chamber 21, a cathode chamber 22, a proton exchange membrane 23, a polar chamber cover 24, an anode stirring paddle 25, a cathode gas collecting bottle 26, a lithium-rich liquid outlet butterfly valve 27, a filter screen 28, a sealing bearing 29, a residue outlet butterfly valve 20, an electrolysis mechanism 3, an anode 31, a cathode 32 and a voltage-stabilizing direct-current power supply 33.
The utility model has the beneficial effects that: the utility model relates to an electrolytic cell for recycling waste lithium ion batteries, which is an electrochemical lithium extraction system based on the charging principle of lithium ion batteries, and takes an external circuit as a control means to extract Li in a positive electrode material+Charging and extracting, passing through proton exchange membrane to cathode chamber, and Li in the cathode chamber+Finally, the lithium is recovered by a precipitation method, so that the preferential extraction of the lithium by an electrochemical method is realized. Because the cathode chamber and the anode chamber are separated by the proton exchange membrane, the anode Li can be realized under the condition of uninterrupted power supply+Continuously resolving while Li in cathode solution+Is continuously enriched. The recycling object in the utility model can be anode materials obtained by pre-separating waste lithium ion batteries or leftover materials generated in the production process. The device has a plurality of advantages of simple and convenient operation process, high selectivity, environmental friendliness, high extraction rate and the like, and shows good popularization and application prospects. The device simplifies the lithium element recovery process in the waste lithium ion battery, and the equipment is simple; the purification of lithium is realized in the electrolysis process, and the recovery rate and the purity are both considered.
Drawings
FIG. 1 is a front view of a spent lithium ion battery recovery cell of the present invention;
fig. 2 is a top view of the electrolytic cell for recycling waste lithium ion batteries according to the present invention.
In the figure: the device comprises a polar chamber jacket 1, a jacket body 11, a water inlet butterfly valve 12, a water outlet butterfly valve 13, a polar chamber 2, an anode chamber 21, a cathode chamber 22, a proton exchange membrane 23, a polar chamber cover 24, an anode stirring paddle 25, a cathode gas collecting bottle 26, a lithium-rich liquid outlet butterfly valve 27, a filter screen 28, a sealing bearing 29, a residue outlet butterfly valve 20, an electrolysis mechanism 3, an anode 31, a cathode 32 and a voltage-stabilizing direct-current power supply 33.
Detailed Description
In order to make the technical scheme of the utility model easier to understand, the technical scheme of the utility model is clearly and completely described by adopting a mode of a specific embodiment in combination with the attached drawings.
Example 1:
as shown in fig. 1 and fig. 2, the apparatus for extracting lithium element from waste lithium ion batteries of the present embodiment includes an electrode chamber jacket 1, an electrode chamber 2 and an electrolysis mechanism 3, wherein the electrode chamber 2 is disposed in the electrode chamber jacket 1, and wherein:
the polar chamber jacket 1 comprises a jacket body 11, and a water inlet butterfly valve 12 and a water outlet butterfly valve 13 are arranged on the jacket body 11;
the polar chamber 2 comprises an anode chamber 21 and a cathode chamber 22, the anode chamber 21 is communicated with the cathode chamber 22 and is provided with a proton exchange membrane 23, the tops of the cathode chamber 22 and the anode chamber 21 are respectively provided with a polar chamber cover 24, an anode stirring paddle 25 is arranged in the anode chamber 21, the upper part of the side wall of the cathode chamber 22 is connected with a cathode gas collecting bottle 26, and the lower part of the side wall of the cathode chamber 22 is provided with a lithium-rich liquid outlet butterfly valve 27;
the electrolysis means 3 includes an anode 31 provided in the anode chamber 21 and a cathode 32 provided in the cathode chamber 22, and a voltage-stabilized dc power supply 33 is connected between the anode 31 and the cathode 32.
Example 2:
as shown in fig. 1 and fig. 2, the apparatus for extracting lithium element from waste lithium ion batteries of the present embodiment includes an electrode chamber jacket 1, an electrode chamber 2 and an electrolysis mechanism 3, wherein the electrode chamber 2 is disposed in the electrode chamber jacket 1, and wherein:
the polar chamber jacket 1 comprises a jacket body 11, and a water inlet butterfly valve 12 and a water outlet butterfly valve 13 are arranged on the jacket body 11;
the polar chamber 2 comprises an anode chamber 21 and a cathode chamber 22, the anode chamber 21 is communicated with the cathode chamber 22 and is provided with a proton exchange membrane 23, the tops of the cathode chamber 22 and the anode chamber 21 are respectively provided with a polar chamber cover 24, an anode stirring paddle 25 is arranged in the anode chamber 21, the upper part of the side wall of the cathode chamber 22 is connected with a cathode gas collecting bottle 26, and the lower part of the side wall of the cathode chamber 22 is provided with a lithium-rich liquid outlet butterfly valve 27;
the electrolysis means 3 includes an anode 31 provided in the anode chamber 21 and a cathode 32 provided in the cathode chamber 22, and a voltage-stabilized dc power supply 33 is connected between the anode 31 and the cathode 32.
And a filter screen 28 is arranged on one side of the proton exchange membrane 23 close to the anode chamber 21.
The anode 31 comprises a plurality of cylindrical electrodes.
The anode 31 comprises 3 cylindrical electrodes.
And a silica gel sealing gasket and an O-shaped sealing ring are respectively arranged between the polar chamber cover 24 and the anode chamber 21 and between the polar chamber cover and the cathode chamber 22.
The pole chamber cover 24 is provided with an electric wire outlet, the electric wire and the pole chamber cover 24 are sealed, and the anode stirring paddle 25 is installed on the pole chamber cover 24 of the anode chamber 21 through a sealing bearing 29.
And a residue outlet butterfly valve 20 is arranged at the bottom of the anode chamber 21.
The anode stirring paddle 25 adopts an A-310 type stirring paddle.
The working principle of the utility model is as follows: opening a polar chamber cover 24 under the condition of power failure, adding pure water and the anode material of the waste lithium ion battery into an anode chamber 22, electrifying an anode stirring paddle, stirring and beating into slurry, then injecting a sodium chloride solution with the concentration of 200g/L into the anode chamber 22 to improve the conductivity, opening a jacket water inlet butterfly valve 12, adding constant-temperature water into a jacket body 11, closing, and sealing the cathode chamber and the anode chamber by using the polar chamber cover. And (3) turning on a voltage-stabilizing direct-current power supply, adjusting the output voltage to be 25V, and turning on an anode stirring paddle to ensure that the solution in the anode chamber is uniform. After one hour of electrolysis, Li+、Na+Li entering the cathode compartment through a Nafion proton exchange membrane+And (3) enriching in the cathode solution, opening a butterfly valve at a lithium-rich solution outlet to collect the lithium-rich solution, carrying out hydrogen evolution reaction on a cathode glassy carbon electrode, and collecting gas generated by electrolysis by a gas collection bottle.
Drying and weighing the cathode, wherein the weight is unchanged, and Li is known+Is not deposited at the cathode. Collecting lithium-rich liquid in the cathode chamber, heating to 90 ℃, and adding Li to CO according to the mass ratio of the substances3 2-Sodium carbonate was added to the solution at 5:3, reacted for 0.5h and filtered, and the resulting precipitate was washed 5 times and dried. Calculated recovery rateReaching 99.36 percent. The obtained lithium carbonate was subjected to ICP detection, and the purity was 99.58%.
It should be noted that the embodiments described herein are only some embodiments of the present invention, and not all implementations of the present invention, and the embodiments are only examples, which are only used to provide a more intuitive and clear understanding of the present invention, and are not intended to limit the technical solutions of the present invention. All other embodiments, as well as other simple substitutions and various changes to the technical solutions of the present invention, which can be made by those skilled in the art without inventive work, are within the scope of the present invention without departing from the spirit of the present invention.

Claims (8)

1. The utility model provides a device of lithium element is drawed from old and useless lithium ion battery which characterized in that, includes utmost point room jacket (1), utmost point room (2) and electrolysis mechanism (3), and utmost point room (2) are located in utmost point room jacket (1), wherein:
the polar chamber jacket (1) comprises a jacket body (11), and a water inlet butterfly valve (12) and a water outlet butterfly valve (13) are arranged on the jacket body (11);
the anode chamber (2) comprises an anode chamber (21) and a cathode chamber (22), a proton exchange membrane (23) is communicated between the anode chamber (21) and the cathode chamber (22), the top parts of the cathode chamber (22) and the anode chamber (21) are respectively provided with an electrode chamber cover (24), an anode stirring paddle (25) is arranged in the anode chamber (21), the upper part of the side wall of the cathode chamber (22) is connected with a cathode gas collecting bottle (26), and the lower part of the side wall of the cathode chamber (22) is provided with a lithium-rich liquid outlet butterfly valve (27);
the electrolysis mechanism (3) comprises an anode (31) arranged in the anode chamber (21) and a cathode (32) arranged in the cathode chamber (22), and a voltage-stabilizing direct-current power supply (33) is connected between the anode (31) and the cathode (32).
2. The device for extracting lithium from waste lithium ion batteries according to claim 1, wherein a filter screen (28) is arranged on one side of the proton exchange membrane (23) close to the anode chamber (21).
3. The apparatus for extracting lithium from spent lithium ion batteries according to claim 1, wherein the anode (31) comprises a plurality of cylindrical electrodes.
4. The apparatus for extracting lithium from spent lithium ion batteries according to claim 1, wherein the anode (31) comprises 3 cylindrical electrodes.
5. The apparatus for extracting lithium from waste lithium ion batteries according to claim 1, wherein a silica gel sealing gasket and an O-ring are respectively installed between the cover (24) and the anode chamber (21) and the cathode chamber (22).
6. The apparatus for extracting lithium from waste lithium ion battery as claimed in claim 1, wherein the electrode chamber cover (24) is provided with a wire outlet, the wire is sealed with the electrode chamber cover (24), and the anode stirring paddle (25) is mounted on the electrode chamber cover (24) of the anode chamber (21) through a sealed bearing (29).
7. The apparatus for extracting lithium from waste lithium ion batteries according to claim 1, wherein the bottom of the anode chamber (21) is provided with a residue outlet butterfly valve (20).
8. The apparatus for extracting lithium element from waste lithium ion battery as claimed in claim 1, wherein the anode stirring paddle (25) is a type a-310 stirring paddle.
CN202120577989.8U 2021-03-22 2021-03-22 Device for extracting lithium element from waste lithium ion battery Active CN215628354U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120577989.8U CN215628354U (en) 2021-03-22 2021-03-22 Device for extracting lithium element from waste lithium ion battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120577989.8U CN215628354U (en) 2021-03-22 2021-03-22 Device for extracting lithium element from waste lithium ion battery

Publications (1)

Publication Number Publication Date
CN215628354U true CN215628354U (en) 2022-01-25

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Application Number Title Priority Date Filing Date
CN202120577989.8U Active CN215628354U (en) 2021-03-22 2021-03-22 Device for extracting lithium element from waste lithium ion battery

Country Status (1)

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CN (1) CN215628354U (en)

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