CN212821449U - Auxiliary device for reducing residual alkali of ternary cathode material by water washing method - Google Patents
Auxiliary device for reducing residual alkali of ternary cathode material by water washing method Download PDFInfo
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- CN212821449U CN212821449U CN202020944404.7U CN202020944404U CN212821449U CN 212821449 U CN212821449 U CN 212821449U CN 202020944404 U CN202020944404 U CN 202020944404U CN 212821449 U CN212821449 U CN 212821449U
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- tank body
- cathode material
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- washing method
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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
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Abstract
The utility model discloses an auxiliary device for reducing residual alkali of ternary anode materials by a washing method, which comprises a tank body, a stirring device and a suction filtration device, wherein the stirring device is arranged at the top of the tank body, and the stirring part of the stirring device extends downwards to the inside of the tank body; the bottom of the tank body is provided with a discharge port, a conical flask with a connector on the side wall is arranged below the tank body, the opening of the conical flask is hermetically connected with a rubber plug, the opening of the rubber plug is elastically and hermetically connected with a Buchner funnel, the feed end of the Buchner funnel corresponds to the discharge port of the tank body, and the connector of the conical flask is connected with a suction filtration device through an air duct. The utility model discloses an auxiliary device with washing method reduction ternary cathode material remains alkali adopts the washing method to reduce ternary cathode material and remains alkali, can wash more thoroughly surface residual alkali through rapid mixing, and after the suction filtration, carries out the drying, can effectively improve washing dehydration time.
Description
Technical Field
The utility model relates to a lithium ion cathode material prepares technical field, especially relates to an auxiliary device who reduces ternary cathode material with washing method and remains alkali.
Background
The high residual alkali on the surface of the cathode material may be attributed to two factors. Active oxygen on the surface of the positive electrode material of the first aspect2 -With CO in the air2And H2CO is produced by the contact of O3 2-While Li+Migration from the interior of the material to the surface and formation of Li2CO3The structure of the surface oxide layer is distorted due to the deoxidation of the material surface. In the second aspect, the lithium salt will volatilize to a certain extent during the high temperature calcination, the proportion of Li will be slightly increased during the compounding, and the rest Li is Li under the high temperature condition2O is present in the form, and Li2O can adsorb CO in the air2And H2O to form LiOH and Li2CO3And the like.
The coating is affected by the excessive content of the residual alkali on the surface of the cathode material, and the nickel-rich ternary material is easy to form a jelly shape in the homogenizing process. The surface basic compound also increases irreversible capacity loss while deteriorating cycle performance. In addition, for nickel-rich ternary materials, the Li of the surface2CO3The decomposition under high voltage can also lead to the battery flatulence, and great potential safety hazard is caused. Therefore, the method has very important significance for reducing the residual alkali content on the surface of the nickel-rich ternary material.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide an auxiliary device that reduces the alkaline of ternary cathode material residual with washing method, through rapid mixing, after the suction filtration, carry out the drying, can effectively improve washing dehydration time.
The utility model provides an auxiliary device for reducing residual alkali of ternary anode materials by a washing method, which comprises a tank body, a stirring device and a suction filtration device,
the stirring device is arranged at the top of the tank body, and the stirring part of the stirring device extends downwards to the inside of the tank body;
a discharge hole is formed in the bottom of the tank body, a conical flask with a connector on the side wall is arranged below the tank body, a rubber plug is hermetically connected to the opening of the conical flask, a Buchner funnel is elastically and hermetically connected to the opening of the rubber plug, the feeding end of the Buchner funnel corresponds to the discharge hole of the tank body, and the connector of the conical flask is connected with a suction filtration device through an air guide tube;
a filter screen is installed near the bottom in the buchner funnel, and a plurality of filter holes are evenly distributed on the filter screen.
Preferably, the top of the tank body is detachably and fixedly connected with an upper cover through a bolt.
Preferably, the stirring device comprises a motor, a stirring shaft and a stirring paddle;
the motor passes through the installing support to be fixed at the upper cover top of the jar body, the (mixing) shaft is connected with the output drive of motor, the stirring rake is provided with the multiunit altogether, and the stirring rake longitudinal distribution is on the (mixing) shaft.
Preferably, the suction filtration device is a vacuum pump, a first air suction port and a second air suction port are arranged on the vacuum pump, and a connector of the conical flask is connected with one air suction port of the vacuum pump through an air guide pipe.
Preferably, the bottom of the tank body is also connected with a support frame.
Preferably, the circulating water device is further included, the outer wall of the tank body is of a double-layer structure, the inner part of the tank body is hollow, a heat medium flows through the hollow cavity, a water inlet communicated with the hollow cavity is formed in the bottom of one side of the outer wall of the tank body, a water outlet communicated with the hollow cavity is formed in the top of the other side of the outer wall of the tank body, and the water inlet and the water outlet are respectively connected with the circulating water device through water pipes.
The utility model has the advantages that:
the utility model discloses an auxiliary device for reducing ternary cathode material residual alkali with washing method, adopt washing method to reduce ternary cathode material and remain alkali, stir water and ternary cathode material through agitating unit is continuous during the washing, make and remain the quick water that dissolves of alkali, thereby get rid of and remain alkali, ternary cathode material after the washing falls into to being connected with the buchner funnel of erlenmeyer flask in, interface intercommunication vacuum pump on the erlenmeyer flask lateral wall, utilize the vacuum pump to form the negative pressure with the inside air escape of erlenmeyer flask, the moisture on ternary cathode material surface is quick under the pressure effect is taken out to consider and is accomplished dry dehydration, through the utility model discloses an auxiliary device can effectively improve washing dehydration time, also can wash more thoroughly with surface residual alkali simultaneously.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an auxiliary device for reducing residual alkali of a ternary cathode material by a washing method according to the present invention;
fig. 2 is the utility model provides a reduce the structural schematic diagram of the auxiliary device's of ternary cathode material residual alkali filter screen with the washing method.
In the figure: 1. a tank body; 2. an upper cover; 3. a motor; 4. a stirring shaft; 5. a stirring paddle; 6. a water inlet; 7. a water outlet; 8. a support frame; 9. a discharge port; 10. a Buchner funnel; 11. a conical flask; 12. filtering with a screen; 13. an interface; 14. an air duct; 15. a vacuum pump; 16. a first air intake port; 17. a second air suction port; 18. a rubber stopper; 19. and (5) filtering holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following further describes an auxiliary device for reducing residual alkali of a ternary cathode material by a water washing method according to an embodiment of the present invention with reference to the drawings.
Referring to fig. 1-2, an auxiliary device for reducing residual alkali on a ternary cathode material by a water washing method comprises a tank body 1, a stirring device and a suction filtration device, wherein the stirring device is installed at the top of the tank body 1, a stirring part of the stirring device extends downwards into the tank body 1, and a mixture of the ternary cathode material and water is continuously stirred by the stirring device, so that the alkali residual on the surface of the ternary cathode material is rapidly dissolved in the water, and the residual alkali is removed; a discharge port 9 with a valve is arranged at the bottom of the tank body 1, the valve is opened, the cleaned ternary anode material is discharged from the discharge port 9, a conical flask 11 with a connector 13 on the side wall is arranged below the tank body 1, the opening of the conical flask 11 is hermetically connected with a rubber plug 18, the opening of the rubber plug 18 is elastically and hermetically connected with a buchner funnel 10, the feeding end of the buchner funnel 10 corresponds to the discharge port 9 of the tank body 1, the ternary anode material enters the buchner funnel 10 after being discharged from the discharge port 9, and the connector 13 of the conical flask 11 is connected with a suction filtration device through an air duct 14; a filter screen 12 is installed in the buchner funnel 10 near the bottom, a plurality of filter holes 19 are evenly distributed on the filter screen 12, the residual water on the surface after the surface of the ternary anode material is cleaned flows into the conical flask 11 through the buchner funnel 10, the aperture of the filter holes 19 on the filter screen 12 in the embodiment is very small, water molecules can only pass through, the air inside the conical flask 11 is discharged through the effect of the suction filtration device, negative pressure is formed inside the air, and the water molecules are pumped into the conical flask 11 under the action of pressure.
As a preferred embodiment, the top of the tank body 1 is detachably and fixedly connected with an upper cover 2 through bolts, and the ternary cathode material to be cleaned and water are mixed and put into the tank body 1 by opening the upper cover 2.
Specifically, the stirring device comprises a motor 3, a stirring shaft 4 and a stirring paddle 5; motor 3 passes through the installing support to be fixed at 2 tops of the upper cover of jar body 1, motor 3's output sets up down, (mixing) shaft 4 is connected with motor 3's output drive, inside (mixing) shaft 4 extended to jar body 1, stirring rake 5 is provided with the multiunit altogether, and 5 longitudinal distribution of stirring rake are on (mixing) shaft 4, rotate through motor 3 and drive (mixing) shaft 4 and 5 synchronous rotations of stirring rake, carry out abundant stirring to water and ternary anode material and mix, thereby the quick thorough remains the alkali with ternary anode material surface and washes.
Optionally, the suction filtration device in this embodiment is a vacuum pump 15, the vacuum pump 15 is provided with a first air suction port 16 and a second air suction port 17, the interface 13 of the erlenmeyer flask 11 is connected with one of the air suction ports of the vacuum pump 15 through an air duct 14, and the vacuum pump 15 exhausts air inside the erlenmeyer flask 11 to form a negative pressure inside the erlenmeyer flask.
As a preferred embodiment, the bottom of the tank body 1 is also connected with a support frame 8, and the whole tank body 1 is supported and fixed through the support frame 8.
Additionally, the utility model discloses an auxiliary device that reduces ternary cathode material with washing method and remain alkali still is including circulating water device, the outer wall of jar body 1 is bilayer structure, inside is the cavity form, and the circulation has hot medium in this cavity, the preferred water of adopting of hot medium in this embodiment, water inlet 6 that is linked together with the cavity is seted up to one side bottom of the outer wall of jar body 1, the opposite side top of the outer wall of jar body 1 is provided with delivery port 7 that is linked together with the cavity, water inlet 6 and delivery port 7 are connected with circulating water device through the water pipe respectively, pour into hot water into in the cavity to jar body 1 through circulating water device is continuous, can effectively reduce the heat loss in the jar body 1.
The utility model discloses an auxiliary device for reducing ternary cathode material residual alkali with washing method, in operation, open upper cover 2, will treat abluent ternary cathode material and water mixture and put into jar 1 internally, through turning round bolted connection firm, starter motor 3, motor 3 drives (mixing) shaft 4 and 5 rotations of stirring rake and carries out intensive mixing to ternary cathode material and aqueous solution, with the quick water that dissolves in of the alkali on material surface, ternary cathode material after the washing unloads from discharge gate 9 and gets into to buchner funnel 10 in, press power button, start vacuum pump 15 forms the negative pressure with the inside air escape of erlenmeyer flask 11, the water on material surface is by suction filtration dehydration drying under the pressure effect.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an auxiliary device that reduces ternary cathode material residual alkali with washing method which characterized in that: comprises a tank body, a stirring device and a suction filtration device,
the stirring device is arranged at the top of the tank body, and the stirring part of the stirring device extends downwards to the inside of the tank body;
a discharge hole is formed in the bottom of the tank body, a conical flask with a connector on the side wall is arranged below the tank body, a rubber plug is hermetically connected to the opening of the conical flask, a Buchner funnel is elastically and hermetically connected to the opening of the rubber plug, the feeding end of the Buchner funnel corresponds to the discharge hole of the tank body, and the connector of the conical flask is connected with a suction filtration device through an air guide tube;
a filter screen is installed near the bottom in the buchner funnel, and a plurality of filter holes are evenly distributed on the filter screen.
2. The auxiliary device for reducing the residual alkali of the ternary cathode material by the water washing method according to claim 1, is characterized in that: the top of the tank body is detachably and fixedly connected with an upper cover through a bolt.
3. The auxiliary device for reducing the residual alkali of the ternary cathode material by the water washing method according to claim 2, is characterized in that: the stirring device comprises a motor, a stirring shaft and a stirring paddle;
the motor passes through the installing support to be fixed at the upper cover top of the jar body, the (mixing) shaft is connected with the output drive of motor, the stirring rake is provided with the multiunit altogether, and the stirring rake longitudinal distribution is on the (mixing) shaft.
4. The auxiliary device for reducing the residual alkali of the ternary cathode material by the water washing method according to claim 1, is characterized in that: the suction filtration device is a vacuum pump, a first air suction port and a second air suction port are arranged on the vacuum pump, and a connector of the conical flask is connected with one of the air suction ports of the vacuum pump through an air guide pipe.
5. The auxiliary device for reducing the residual alkali of the ternary cathode material by the water washing method according to claim 1, is characterized in that: the bottom of the tank body is also connected with a support frame.
6. The auxiliary device for reducing the residual alkali of the ternary cathode material by the water washing method according to claim 1, is characterized in that: the water circulating device is characterized by further comprising a water circulating device, the outer wall of the tank body is of a double-layer structure, the inner part of the tank body is hollow, a heat medium flows in the hollow cavity, a water inlet communicated with the hollow cavity is formed in the bottom of one side of the outer wall of the tank body, a water outlet communicated with the hollow cavity is formed in the top of the other side of the outer wall of the tank body, and the water inlet and the water outlet are connected with the water circulating device through water pipes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020944404.7U CN212821449U (en) | 2020-05-28 | 2020-05-28 | Auxiliary device for reducing residual alkali of ternary cathode material by water washing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020944404.7U CN212821449U (en) | 2020-05-28 | 2020-05-28 | Auxiliary device for reducing residual alkali of ternary cathode material by water washing method |
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| Publication Number | Publication Date |
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| CN212821449U true CN212821449U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020944404.7U Expired - Fee Related CN212821449U (en) | 2020-05-28 | 2020-05-28 | Auxiliary device for reducing residual alkali of ternary cathode material by water washing method |
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| CN (1) | CN212821449U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833130A (en) * | 2022-03-22 | 2022-08-02 | 池州西恩新材料科技有限公司 | Cleaning device in dry-wet hybrid recovery of ternary lithium battery |
| CN115792095A (en) * | 2023-02-01 | 2023-03-14 | 山东海科创新研究院有限公司 | Non-aqueous detection method for surface residual alkali of positive active material and application |
-
2020
- 2020-05-28 CN CN202020944404.7U patent/CN212821449U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833130A (en) * | 2022-03-22 | 2022-08-02 | 池州西恩新材料科技有限公司 | Cleaning device in dry-wet hybrid recovery of ternary lithium battery |
| CN115792095A (en) * | 2023-02-01 | 2023-03-14 | 山东海科创新研究院有限公司 | Non-aqueous detection method for surface residual alkali of positive active material and application |
| CN115792095B (en) * | 2023-02-01 | 2023-06-27 | 山东海科创新研究院有限公司 | Nonaqueous detection method for residual alkali on surface of positive electrode active material and application |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |