CN210322665U

CN210322665U - Battery slurry sieving efficiency testing device

Info

Publication number: CN210322665U
Application number: CN201920783524.0U
Authority: CN
Inventors: 朱籽润
Original assignee: Hengdian Group DMEGC Magnetics Co Ltd
Current assignee: Hengdian Group DMEGC Magnetics Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-04-14
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a battery thick liquids efficiency testing arrangement that sieves belongs to battery technical field, including blowing subassembly, filter assembly, flourishing material subassembly and the subassembly of weighing that from top to bottom sets gradually, be equipped with battery thick liquids in the blowing subassembly, filter assembly includes the screen cloth, the subassembly of weighing is configured to measure in the preset time by the blowing subassembly emits, and the process enter into behind the screen cloth the weight of the battery thick liquids in the flourishing material subassembly. The utility model provides a battery thick liquids efficiency testing arrangement that sieves emits by the blowing subassembly in the time of predetermineeing through the subassembly measurement of weighing to enter into the weight of the battery thick liquids in the flourishing material subassembly behind the screen cloth, thereby obtain the efficiency of sieving of battery thick liquids, and can measure the efficiency of sieving of different battery thick liquids, be convenient for evaluate the dispersibility and the mobility of battery thick liquids, be favorable to the improvement of the homogenate technology of battery thick liquids, improve the quality of battery thick liquids.

Description

Battery slurry sieving efficiency testing device

Technical Field

The utility model relates to a battery technology field especially relates to a battery thick liquids efficiency test device that sieves.

Background

In the manufacturing process of the electrode of the lithium ion battery, the anode slurry is composed of an adhesive, a conductive agent, an anode material and the like; the negative electrode slurry consists of adhesive, graphite carbon powder, etc. and the preparation of the positive and negative electrode slurry includes the technological processes of mixing, dissolving, dispersing, etc. of liquid and solid material.

In the preparation process of battery slurry (positive electrode slurry and negative electrode slurry), because impurities or solid materials in the raw materials are not completely dispersed, the battery slurry contains solid agglomerates or colloidal agglomerates with large volume, so that the battery slurry cannot meet the requirement of a certain mesh number, the solid agglomerates or colloidal agglomerates can influence the charge and discharge performance of a battery, and the solid agglomerates or colloidal agglomerates in the battery slurry are generally screened out by a screen with a certain mesh number.

In order to obtain the battery paste with the best performance, it is generally necessary to determine the sieving efficiency (the weight of the battery paste flowing through the sieve per unit time) of the battery paste to determine the dispersibility and flowability of the battery paste. However, at present, the measurement of the sieving efficiency is completely completed by manual operation of an operator, and the sieving efficiency is obtained by the operator visually observing the sieving speed of the battery slurry, so that a large error exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery thick liquids efficiency testing arrangement that sieves realizes the measurement to battery thick liquids efficiency that sieves to the dispersibility and the mobility to battery thick liquids carry out the analysis, are favorable to the improvement of homogenate technology.

As the conception, the utility model adopts the technical proposal that:

the utility model provides a battery thick liquids efficiency testing arrangement that sieves, is including blowing subassembly, filter assembly, flourishing material subassembly and the subassembly of weighing that from top to bottom sets gradually, be equipped with battery thick liquids in the blowing subassembly, filter assembly includes the screen cloth, the subassembly of weighing is configured to measure in the preset time by the blowing subassembly emits, and passes through enter into behind the screen cloth the weight of the battery thick liquids in the flourishing material subassembly.

Further, the filter assembly further comprises a screen clamp, and the screen is arranged on the screen clamp.

Further, the screen clamp comprises a magnetic part and a fixing part, through holes are formed in the magnetic part and the fixing part in a relatively opened mode, the magnetic part can be adsorbed on the fixing part, the screen is clamped between the magnetic part and the fixing part, and the screen and the through holes are arranged just opposite to each other.

Furthermore, the screen clamp further comprises two fixing sleeves used for fixing the magnetic part and the fixing part respectively, wherein one of the two fixing sleeves is provided with a positioning bulge, and the other fixing sleeve is provided with a positioning hole matched with the positioning bulge.

Further, battery thick liquids efficiency testing arrangement that sieves still includes the support, blowing subassembly, filtering component all set up in on the support.

Further, the support is arranged vertically, and scale marks are arranged on the support along the extending direction of the support.

Furthermore, a first clamp and a second clamp are arranged on the support, the first clamp is used for clamping the discharging assembly, and the second clamp is used for clamping the filtering assembly.

Further, the first clamp and the second clamp are both slidably arranged on the bracket.

Further, the material containing assembly is a beaker.

Further, the weighing assembly is an electronic scale.

The utility model has the advantages that:

the utility model provides a battery thick liquids efficiency testing arrangement that sieves emits by the blowing subassembly in the time of predetermineeing through the subassembly measurement of weighing to enter into the weight of the battery thick liquids in the flourishing material subassembly behind the screen cloth, thereby obtain the efficiency of sieving of battery thick liquids, and can measure the efficiency of sieving of different battery thick liquids, be convenient for evaluate the dispersibility and the mobility of battery thick liquids, be favorable to the improvement of the homogenate technology of battery thick liquids, improve the quality of battery thick liquids.

Drawings

Fig. 1 is a schematic structural diagram of a device for testing the sieving efficiency of battery slurry provided by the present invention;

fig. 2 is a schematic structural view of the screen clamp provided by the present invention.

In the figure:

1. a support; 11. scale lines; 12. a first clamp; 13. a second clamp; 2. a discharging component; 3. a screen clamp; 311. a first fixing sleeve; 3111. positioning the projection; 312. a second fixing sleeve; 320. a through hole; 321. A magnetic member; 322. a fixing member; 4. screening a screen; 5. a material containing assembly; 6. and a weighing component.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; 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 in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the embodiment provides a battery paste filtration efficiency testing device, including blowing subassembly 2, filter assembly, flourishing material subassembly 5 and the subassembly 6 of weighing that from top to bottom sets gradually, is filled with battery paste in the blowing subassembly 2, and filter assembly includes screen cloth 4, and the subassembly 6 of weighing is used for measuring to emit by blowing subassembly 2 in the unit interval to enter into the weight of the battery paste in flourishing material subassembly 5 behind screen cloth 4, also be exactly the efficiency of sieving.

This battery thick liquids filtration efficiency testing arrangement still includes support 1, the vertical setting of support 1, and blowing subassembly 2 and filtering component all set up on support 1, specifically, are provided with first anchor clamps 12 and second anchor clamps 13 on the support 1, and first anchor clamps 12 are used for fixed blowing subassembly 2, and second anchor clamps 13 are used for fixed filtering component to first anchor clamps 12 and second anchor clamps 13's position is adjustable. The first clamp 12 and the second clamp 13 can be slidably arranged on the support 1 in a sliding manner, taking the first clamp 12 as an example, a sliding block is arranged on the first clamp 12, a sliding groove is arranged on the support 1, the sliding block can be slidably arranged in the sliding groove, in addition, a first fixing hole is formed in the sliding block, a plurality of second fixing holes are formed in the sliding groove along the extending direction of the sliding groove, and a fastener penetrates through the first fixing hole and is inserted into the second fixing hole to fix the sliding block. Of course, the first clamp 12 and the second clamp 13 may be disposed on the bracket 1 in other manners, and the embodiment is not particularly limited. In addition, the specific structure of the first clamp 12 and the third clamp 13 is not limited in this embodiment as long as the fixing of the emptying assembly 2 and the filtering assembly can be realized.

Furthermore, the bracket 1 is provided with scale marks 11 along the extending direction thereof, and the scale marks 11 are used for an operator to adjust the distance between the first clamp 12 and the second clamp 13 and the distance between the filter assembly on the second clamp 13 and the material containing assembly 5. When testing the efficiency of sieving of different battery thick liquids (for example adopt the same raw materials, but adopt the battery thick liquids of different homogenate technology production), accessible scale mark 11 guarantees that the interval between first anchor clamps 12 and the second anchor clamps 13 and the filter assembly on the second anchor clamps 13 and the interval between flourishing material subassembly 5 keep invariable for measuring condition keeps unanimous, reduces the influence of external factor to measuring result, is convenient for improve the homogenate technology.

In this embodiment, the emptying assembly 2 is preferably a separating funnel filled with battery slurry, and the separating funnel is fixed on the support 1 through the first clamp 12. In other embodiments, the discharging assembly 2 may have other structures, for example, the discharging assembly 2 may further include a discharging tube, a discharging tube is connected to the bottom of the discharging tube, and a valve is disposed on the discharging tube, so that the discharging of the battery slurry is realized through the valve.

As shown in fig. 2, the filter assembly further comprises a screen clamp 3 for securing a screen 4. Specifically, the screen clamp 3 includes a magnetic member 321 and a fixing member 322, the magnetic member 321 and the fixing member 322 are provided with through holes 320 facing each other, the magnetic member 321 can be attracted to the fixing member 322, the screen 4 is sandwiched between the magnetic member 321 and the fixing member 322, and the screen 4 is disposed opposite to the through holes 320. Preferably, in the present embodiment, the magnetic element 321 and the fixing element 322 are both made of a magnetic material, and the magnetic element 321 and the fixing element 322 can attract each other, but in other embodiments, the fixing element 322 may also be made of a ferromagnetic material. In addition, in the present embodiment, the area of the screen 4 is larger than the area of the through holes 320, so that the screen 4 can completely cover the through holes 320, thereby ensuring the filtering effect. In addition, in this embodiment, the magnetic member 321 and the fixing member 322 are both annular structures, and two opposite surfaces of the two annular structures are both flat surfaces, so that the screen 4 is kept flat while being clamped, and the screen 4 is prevented from being raised or wrinkled. Through adopting above-mentioned mode fixed screen cloth 4, can guarantee when testing the efficiency of sieving of different battery thick liquids (for example adopt the same raw materials, but adopt the battery thick liquids of different homogenate technology production), the area size of the partial screen cloth 4 that is used for filtering the battery thick liquids is the same for measuring condition keeps unanimous, reduces the influence of external factor to measuring result, is convenient for improve the homogenate technology, and is convenient for screen cloth 4's change.

The screen jig 3 further includes two fixing sleeves for fixing the magnetic member 321 and the fixing member 322, in this embodiment, the two fixing sleeves are also in an annular structure, the two fixing sleeves are named as a first fixing sleeve 311 and a second fixing sleeve 312, the magnetic member 321 is embedded inside the first fixing sleeve 311, and the fixing member 322 is embedded inside the second fixing sleeve 312. The fixed cover 311 of first fixed cover is gone up and is equipped with location arch 3111 towards the lateral bulge of the fixed cover 312 of second, is provided with on the fixed cover 312 of second with location arch 3111 matched with locating hole, and location arch 3111 can insert in the locating hole, realizes the location of the fixed cover 311 of first fixed cover and the fixed cover 312 of second to guarantee that two through-holes 320 of magnetic part 321 and mounting 322 align, avoid two through-holes 320 to stagger and produce the influence to the filtration of battery thick liquids. Of course, in other embodiments, the second fastening sleeve 312 may also be provided with a positioning protrusion 3111, and the first fastening sleeve 311 is provided with a positioning hole, or both the first fastening sleeve 311 and the second fastening sleeve 312 are provided with a positioning protrusion 3111 and a positioning hole, the positioning protrusion 3111 on the first fastening sleeve 311 can be inserted into the corresponding positioning hole on the second fastening sleeve 312, and the positioning protrusion 3111 on the second fastening sleeve 312 can be inserted into the corresponding positioning hole on the first fastening sleeve 311.

In the present embodiment, the material containing assembly 5 is preferably a beaker, which is located right below the screen 4 and is used for collecting the battery slurry passing through the screen 4. Of course, in other embodiments, the material holding assembly 5 may have other structures, such as a measuring cup. In this embodiment, the weighing assembly 6 is preferably an electronic scale, and the beaker is placed on the electronic scale, and the electronic scale is used for measuring the weight of the beaker and the battery slurry in the beaker.

The operation of the battery slurry sieving efficiency testing device will be described in detail below.

1. A separatory funnel was used to take a quantity of the first battery slurry.

2. The separating funnel and the filtering component are both fixedly arranged on the bracket 1, the beaker is arranged on the electronic scale, and the beaker is arranged under the screen 4.

3. And (3) opening a knob below the separating funnel, dripping the battery slurry onto the screen 4, allowing the battery slurry to enter the beaker through the screen 4, and measuring the weight of the battery slurry in the beaker within a preset time by using an electronic scale to obtain the sieving efficiency (g/s) of the first middle battery slurry. The preset time is set according to actual needs, such as 10 s.

4. The separatory funnel was replaced, and a certain amount of the second battery slurry was taken out with the separatory funnel, and the mesh 4 and the beaker were replaced.

5. The above steps 2 to 3 were repeated, and the sieving efficiency (g/s) of the second battery paste was measured.

6. Repeating the steps 4 to 5 to obtain more sieving efficiencies (g/s) of the battery slurry, wherein different battery slurries in the embodiment refer to battery slurries which adopt the same components and have the same proportion of each component but are produced by different homogenization processes. Of course, in other embodiments, the battery slurry may be produced by using the same components, but at least two of the components have different specific gravities, and using the same homogenizing process.

This battery thick liquids efficiency testing arrangement that sieves when testing the efficiency of sieving of different battery thick liquids, the distance between separating funnel, screen cloth 4 and the beaker three remains unchanged.

To sum up, the battery thick liquids efficiency testing arrangement that sieves that this embodiment provided, play by blowing subassembly 2 in the time of predetermineeing through the measurement of subassembly 6 of weighing, and enter into the weight of the battery thick liquids in flourishing material subassembly 5 behind screen cloth 4, thereby obtain the efficiency of sieving of battery thick liquids, and can measure the efficiency of sieving of different battery thick liquids, provide a new characteristic data for the detection of battery thick liquids quality, be convenient for evaluate dispersibility and mobility of battery thick liquids, be favorable to the improvement of the homogenate technology of battery thick liquids, improve the quality of battery thick liquids.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a battery thick liquids efficiency testing arrangement that sieves, its characterized in that, is including blowing subassembly (2), filter assembly, flourishing material subassembly (5) and the subassembly of weighing (6) that from top to bottom sets gradually, be equipped with battery thick liquids in blowing subassembly (2), filter assembly includes screen cloth (4), weighing assembly (6) are configured to measure in the preset time by blowing subassembly (2) are emitted, and pass through enter into behind screen cloth (4) the weight of the battery thick liquids in the flourishing material subassembly (5).

2. The battery slurry sieving efficiency testing device according to claim 1, characterized in that the filtering assembly further comprises a screen clamp (3), and the screen (4) is arranged on the screen clamp (3).

3. The battery slurry sieving efficiency testing device according to claim 2, characterized in that the screen clamp (3) comprises a magnetic member (321) and a fixing member (322), the magnetic member (321) and the fixing member (322) are provided with through holes (320) relatively, the magnetic member (321) can be adsorbed on the fixing member (322), the screen (4) is clamped between the magnetic member (321) and the fixing member (322), and the screen (4) and the through holes (320) are arranged oppositely.

4. The battery slurry sieving efficiency testing device according to claim 3, characterized in that the screen clamp (3) further comprises two fixing sleeves for fixing the magnetic member (321) and the fixing member (322), respectively, one of the two fixing sleeves is provided with a positioning protrusion (3111), and the other fixing sleeve is provided with a positioning hole matched with the positioning protrusion (3111).

5. The battery paste sieving efficiency testing device according to claim 1, characterized in that, the battery paste sieving efficiency testing device further comprises a bracket (1), and the emptying component (2) and the filtering component are both arranged on the bracket (1).

6. The battery slurry sieving efficiency testing device according to claim 5, characterized in that the bracket (1) is vertically arranged, and the bracket (1) is provided with scale marks (11) along the extending direction thereof.

7. The battery slurry sieving efficiency testing device according to claim 5, characterized in that a first clamp (12) and a second clamp (13) are arranged on the bracket (1), the first clamp (12) is used for clamping the emptying assembly (2), and the second clamp (13) is used for clamping the filtering assembly.

8. The battery slurry screening efficiency testing device according to claim 7, characterized in that the first clamp (12) and the second clamp (13) are slidably arranged on the bracket (1).

9. The battery paste screening efficiency testing device according to claim 1, wherein the material containing assembly (5) is a beaker.

10. The battery slurry screening efficiency testing apparatus according to claim 1, wherein the weighing component (6) is an electronic scale.