CN210303478U

CN210303478U - Combined type lithium battery slurry post-processing device

Info

Publication number: CN210303478U
Application number: CN201920692494.2U
Authority: CN
Inventors: 李世通; 王洪良
Original assignee: Wuxi Lingood Machinery Technology Stock Co ltd
Current assignee: Wuxi Lingood Machinery Technology Stock Co ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-14
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a combined type lithium battery slurry post-processing device, which comprises a processing kettle, a crushing and blanking component and an extrusion mixing component, wherein the crushing and blanking component and the extrusion mixing component are arranged in the processing kettle, the top end of the processing kettle is provided with a slurry hopper communicated with the crushing and blanking component, the top end of the processing kettle is also provided with a sol hopper communicated with the extrusion mixing component, the crushing and blanking component is fixedly arranged on the inner wall of the processing kettle, the crushing and blanking component is positioned right above the extrusion mixing component, the crushing and blanking component is used for grinding conductive agent and binder component in crushed slurry, the extrusion mixing component is used for dissolving and mixing slurry component, the utility model has reasonable structural design, vertical mixing and horizontal mixing among the slurry components are realized through the extrusion mixing component, and the mixing uniformity of the mixed type lithium battery slurry is greatly improved, the production quality of the combined lithium battery is improved.

Description

Combined type lithium battery slurry post-processing device

Technical Field

The utility model relates to a lithium cell technical field especially relates to a modular lithium cell thick liquids aftertreatment device.

Background

Manufacturing an electrode of a lithium ion battery, wherein positive electrode slurry comprises an adhesive, a conductive agent, a positive electrode material and the like; the negative electrode slurry is composed of a binder, graphite carbon powder and the like. The preparation of the positive electrode slurry and the negative electrode slurry comprises a series of processes of mixing, dissolving, dispersing and the like between liquid and between liquid and solid materials, and the processes are accompanied by changes of temperature, viscosity, environment and the like. In the positive electrode slurry and the negative electrode slurry, the dispersibility and the uniformity of the granular active substances directly affect the movement of lithium ions between two electrodes of the battery, so that the mixing and the dispersion of the slurry of each pole piece material are very important in the production of the lithium ion battery, and the quality of the dispersion of the slurry directly affects the quality of the subsequent production of the lithium ion battery and the performance of products thereof.

In the post-treatment process of the existing combined lithium battery slurry, all components of the slurry cannot be fully mixed and dispersed, so that the movement of lithium ions at two pole pieces of the battery is directly influenced, the production quality of the combined lithium battery is influenced, and certain defects exist.

Therefore, a combined lithium battery slurry post-processing device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a modular lithium battery slurry aftertreatment device, aim at can fully realize the homogeneous mixing of each composition raw materials in the modular lithium battery slurry comprehensively, improve the production quality of modular lithium battery.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

the utility model provides a modular lithium battery slurry aftertreatment device, including handling the cauldron and setting up the crushing unloading subassembly and extruding the compounding subassembly in handling the cauldron, handle the cauldron top be equipped with smash the thick liquid hopper of unloading subassembly intercommunication, handle the cauldron top still be equipped with extrude the sol fill of compounding subassembly intercommunication, smash unloading subassembly fixed mounting in on the processing cauldron inner wall, just smash the unloading subassembly and be located directly over extruding the compounding subassembly, smash the unloading subassembly and be arranged in grinding conductive agent and binder composition in smashing the thick liquids, it is used for dissolving and mixing of thick liquids composition to extrude the compounding subassembly.

Preferably, among the above-mentioned combination formula lithium cell thick liquids aftertreatment device, smash unloading subassembly includes the rubbing crusher, install two grinding rollers in the rubbing crusher, two all be equipped with the grinding groove on the grinding roller, and be located two grinding groove interlock contact on the grinding roller, two the grinding roller passes through drive gear meshing connection, and one of them the transmission is connected with grinding motor on the grinding roller, grinding motor fixed mounting be in on the rubbing crusher lateral surface.

Based on the technical characteristics, under the driving of the grinding motor, the two grinding rollers rotate oppositely, and the conductive agent and the binder between the two grinding rollers are ground and crushed when passing through the grinding groove, so that the crushing of the raw materials is realized.

Preferably, in the above-mentioned combined lithium battery slurry post-processing device, the inner wall of the crushing cylinder is fixedly provided with two comb-shaped scraping strips matched with the grinding groove, and the comb-shaped scraping strips are in sliding contact with the inner wall of the grinding groove.

Based on the technical characteristics, the arrangement of the comb-shaped scraping strip reduces the attachment amount of the raw material powder on the inner wall of the grinding groove, and improves the grinding efficiency and the grinding quality of subsequent raw materials.

Preferably, among the above-mentioned combination formula lithium battery thick liquids aftertreatment device, extrude the compounding subassembly and include the mixing box, the mixing box top with crushing barrel intercommunication, install four guide posts in the mixing box, slidable mounting has bottom material mixing plate on the guide post, evenly be equipped with a plurality of miniature material mixing holes on the bottom material mixing plate, threaded connection has the reciprocal lead screw of compounding on the bottom material mixing plate, just the reciprocal lead screw bottom of compounding passes mixing box bottom surface and transmission are connected with the compounding motor, bottom material mixing plate upper surface still is connected with the top layer settlement plate through the bracing piece, evenly be equipped with a plurality of penetrating settlement holes on the top layer settlement plate.

Based on the technical characteristics, the material mixing reciprocating screw rod starts to rotate under the driving of the material mixing motor, the bottom material mixing plate which is in threaded connection with the material mixing reciprocating screw rod can only do up-and-down reciprocating motion along the length direction of the material mixing reciprocating screw rod due to the limiting effect of the guide post, meanwhile, the top layer settling plate does up-and-down reciprocating motion along with the bottom material mixing plate, and in the up-and-down motion of the bottom material mixing plate and the top layer settling plate, slurry is extruded, so that the flowing impact mixing of the slurry in the vertical direction is realized, and the mixing uniformity of the slurry is greatly improved.

Preferably, among the above-mentioned combination formula lithium cell thick liquids aftertreatment device, the reciprocal lead screw top fixed mounting of compounding has the transfer line, the transmission is connected with the compounding flabellum on the transfer line, just the compounding flabellum is located bottom compounding board and between the top layer settlement plate.

Based on above-mentioned technical characteristics, the compounding flabellum is rotating the in-process, can carry out the mixture of horizontal direction to the thick liquids of extrusion between bottom mixture board and top layer settlement plate, and the extrusion mixing who matches with the vertical direction has improved the mixture degree of consistency of thick liquids greatly.

Preferably, among the above-mentioned combination formula lithium cell thick liquids aftertreatment device, the mixing box bottom surface sets up and is the slope form, be connected with the conveying pipeline on the mixing box bottom surface, just the conveying pipeline outer end passes the treatment kettle lateral surface is installed the relief valve.

Based on above-mentioned technical characteristic, the setting of mixing tank bottom surface is the slope form, and the thick liquids of being convenient for collect the discharge, and the speed of arranging the material is convenient for adjust to the row of material to the setting of relief valve.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, bottom compounding board is at the up-and-down motion in-process, and the thick liquids are extruded and assault the outflow, have realized that combination formula lithium cell thick liquids strike the mixture at the ascending flow of vertical side, cooperate the mixture of compounding flabellum on the horizontal direction simultaneously for obtain the intensive mixing between each composition of combination formula lithium cell thick liquids, promote the mixing uniformity degree of combination formula lithium cell thick liquids greatly, improved the production quality of combination formula lithium cell greatly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the top view of the crushing and blanking assembly of the present invention;

fig. 3 is the schematic diagram of the structure of the bottom mixing plate of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a treatment kettle; 2-crushing a blanking assembly; 3-extruding a mixing component; 4-a pulp hopper; 5-sol bucket; 6-crushing cylinder; 7-grinding rollers; 8-grinding groove; 9-a transmission gear; 10-a grinding motor; 11-comb scraping strip; 12-a mixing tank; 13-a guide post; 14-bottom layer mixing plate; 15-micro mixing holes; 16-mixing reciprocating screw rod; 17-a mixing motor; 18-a support bar; 19-top settling plate; 20-through settling pores; 21-a transmission rod; 22-mixing fan blades; 23-a delivery pipe; 24-discharge valve.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, this embodiment is a combined post-processing apparatus for lithium battery slurry, which includes a processing kettle 1, and a crushing and blanking assembly 2 and an extrusion mixing assembly 3 disposed in the processing kettle 1, wherein a slurry hopper 4 communicated with the crushing and blanking assembly 2 is disposed at the top end of the processing kettle 1, a sol hopper 5 communicated with the extrusion mixing assembly 3 is further disposed at the top end of the processing kettle 1, the crushing and blanking assembly 2 is fixedly mounted on the inner wall of the processing kettle 1, the crushing and blanking assembly 2 is located right above the extrusion mixing assembly 3, the crushing and blanking assembly 2 is used for grinding conductive agent and binder component in the crushed slurry, the extrusion mixing assembly 3 is used for dissolving and mixing slurry component, the crushing and blanking assembly 2 includes a crushing cylinder 6, two grinding rollers 7 are mounted in the crushing cylinder 6, grinding grooves 8 are disposed on the two grinding rollers 7, and the grinding grooves 8 on the two grinding rollers 7 are in contact, two grinding rollers 7 are meshed and connected through a transmission gear 9, one grinding roller 7 is in transmission connection with a grinding motor 10, the grinding motor 10 is fixedly installed on the outer side surface of a grinding barrel 6, under the driving of the grinding motor 10, the two grinding rollers 7 rotate oppositely, a conductive agent and a binder which are positioned between the two grinding rollers 7 are ground and crushed when passing through a grinding groove 8, the crushing of raw materials is realized, two comb-shaped scraping strips 11 which are matched with the grinding groove 8 are fixedly installed on the inner wall of the grinding barrel 6, the comb-shaped scraping strips 11 are in sliding contact with the inner wall of the grinding groove 8, the arrangement of the comb-shaped scraping strips 11 reduces the adhesion amount of raw material powder on the inner wall of the grinding groove 8, the grinding efficiency and the grinding quality of subsequent raw materials are improved, the extrusion mixing component 3 comprises a mixing box 12, the top of the mixing box 12 is communicated with the grinding barrel 6, four guide columns 13 are installed in, a bottom layer mixing plate 14 is slidably mounted on the guide post 13, a plurality of micro mixing holes 15 are uniformly arranged on the bottom layer mixing plate 14, a mixing reciprocating screw rod 16 is connected to the bottom layer mixing plate 14 in a threaded manner, the bottom end of the mixing reciprocating screw rod 16 penetrates through the bottom surface of the mixing box 12 and is connected with a mixing motor 17 in a transmission manner, a top layer sedimentation plate 19 is further connected to the upper surface of the bottom layer mixing plate 14 through a support rod 18, a plurality of through sedimentation holes 20 are uniformly arranged on the top layer sedimentation plate 19, the mixing reciprocating screw rod 16 starts to rotate under the driving of the mixing motor 17, the bottom layer mixing plate 14 which is connected to the mixing reciprocating screw rod 16 in a threaded manner can only do up-and-down reciprocating motion along the length direction of the mixing reciprocating screw rod 16 due to the limiting effect of the guide post 13, meanwhile, the top layer sedimentation plate 19 does up-and-down, the slurry is extruded, the flowing impact mixing of the slurry in the vertical direction is realized, the mixing uniformity of the slurry is greatly improved, a transmission rod 21 is fixedly arranged at the top end of the mixing reciprocating screw rod 16, mixing fan blades 22 are in transmission connection with the transmission rod 21, and the mixing fan blades 22 are positioned between the bottom layer mixing plate 14 and the top layer settling plate 19, during the rotation process of the mixing fan blades 22, it is possible to mix the slurry extruded between the bottom layer mixer plate 14 and the top layer settling plate 19 in a horizontal direction, the mixing and mixing of the slurry are matched with the extrusion and mixing in the vertical direction, the mixing uniformity of the slurry is greatly improved, the bottom surface of the mixing box 12 is arranged in an inclined shape, the bottom surface of the mixing box 12 is connected with a material conveying pipe 23, and the outer end of the conveying pipeline 23 passes through the outer side surface of the treatment kettle 1 and is provided with a discharge valve 24, the bottom surface of the mixing box 12 is arranged to be inclined, so that slurry is convenient to collect and discharge, and the arrangement of the discharge valve 24 is convenient to adjust the discharge speed.

The specific treatment process comprises the following steps:

s100, preparing materials: weighing and mixing the conductive agent and the binder according to the content of each component in the combined lithium battery slurry, placing the mixed materials in a slurry hopper 4, and simultaneously placing a solvent required in the slurry dissolving and mixing process in a sol hopper 5 according to the proportion;

s200, crushing: the conductive agent and the binder which are mixed according to the proportion fall onto two grinding rollers 7, and the mixture of the conductive agent and the binder is crushed and ground in a grinding groove 8 to obtain mixed powder of the conductive agent and the binder;

s300, mixing: after the mixed powder of the conductive agent and the binder and the solvent are conveyed to the mixing box 12, the bottom layer mixing plate 14 and the top layer settling plate 19 move up and down to realize the raw material mixing in the vertical direction, and the mixing fan blades 22 rotate to realize the raw material mixing in the horizontal direction;

s400, discharging: after the slurry raw materials of the combined lithium battery are fully mixed, the discharge valve 24 is opened to discharge the slurry.

The utility model discloses a bottom compounding board is at the up-and-down motion in-process, and thick liquids are extruded and strike the outflow, have realized that combination formula lithium battery thick liquids strike the mixture at the ascending flow of vertical side, cooperate the mixture of compounding flabellum 22 on the horizontal direction simultaneously for obtain the intensive mixing between each composition of combination formula lithium battery thick liquids, promote the mixing uniformity of combination formula lithium battery thick liquids greatly, improved the production quality of combination formula lithium battery greatly.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a modular lithium battery thick liquids aftertreatment device which characterized in that: including processing cauldron (1) and setting crushing unloading subassembly (2) and extruding compounding subassembly (3) in processing cauldron (1), processing cauldron (1) top be equipped with smash thick liquid hopper (4) of unloading subassembly (2) intercommunication, processing cauldron (1) top still be equipped with extrude compounding subassembly (3) intercommunication sol fill (5), smash unloading subassembly (2) fixed mounting in processing cauldron (1) inner wall, just smash unloading subassembly (2) and be located extrude compounding subassembly (3) directly over, smash unloading subassembly (2) and be arranged in grinding conductive agent and binder composition in smashing the thick liquids, it is used for dissolving and mixing of thick liquids composition to extrude compounding subassembly (3).

2. The combined lithium battery slurry post-processing device according to claim 1, characterized in that: smash unloading subassembly (2) including rubbing crusher (6), install two grinding roller (7) in rubbing crusher (6), two all be equipped with grinding groove (8) on grinding roller (7), and be located two grinding groove (8) interlock contact on grinding roller (7), two grinding roller (7) are connected through drive gear (9) meshing, and one of them transmission connection has grinding motor (10) on grinding roller (7), grinding motor (10) fixed mounting be in on rubbing crusher (6) lateral surface.

3. The combined lithium battery slurry post-processing device according to claim 2, characterized in that: the inner wall of the crushing barrel (6) is fixedly provided with two comb-shaped scraping strips (11) matched with the grinding grooves (8), and the comb-shaped scraping strips (11) are in sliding contact with the inner wall of the grinding grooves (8).

4. The combined lithium battery slurry post-processing device according to claim 2, characterized in that: extrude compounding subassembly (3) including mixing box (12), mixing box (12) top with crushing barrel (6) intercommunication, install four guide posts (13) in mixing box (12), slidable mounting has bottom mixing plate (14) on guide post (13), evenly be equipped with a plurality of miniature mixing hole (15) on bottom mixing plate (14), threaded connection has reciprocal lead screw (16) of compounding on bottom mixing plate (14), just reciprocating lead screw (16) bottom of compounding is passed mixing box (12) bottom surface and transmission are connected with compounding motor (17), bottom mixing plate (14) upper surface still is connected with top layer settlement plate (19) through bracing piece (18), evenly be equipped with a plurality of penetrating settlement hole (20) on top layer settlement plate (19).

5. The combined lithium battery slurry post-processing device according to claim 4, characterized in that: the material mixing reciprocating screw rod (16) is characterized in that a transmission rod (21) is fixedly mounted at the top end of the material mixing reciprocating screw rod, material mixing fan blades (22) are in transmission connection with the transmission rod (21), and the material mixing fan blades (22) are located between the bottom material mixing plate (14) and the top layer sedimentation plate (19).

6. The combined lithium battery slurry post-processing device according to claim 4, characterized in that: mixing box (12) bottom surface sets up and is the slope form, be connected with conveying pipeline (23) on mixing box (12) bottom surface, just conveying pipeline (23) outer end is passed handle cauldron (1) lateral surface and install relief valve (24).