Slurry fluidity detection device

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a slurry fluidity detection device. The two transparent containers are provided with openings, and scale marks are arranged on the transparent containers; the screen is arranged between the openings of the two transparent containers; the connecting device is used for detachably arranging the screen between the openings of the two transparent containers; and the driving device is used for driving the connecting device to rotate. The screen is fixed between the two transparent containers through the connecting device, during detection, the driving device drives the connecting device to rotate by 180 degrees, then timing is started, the time required for the slurry to completely flow from one transparent container to the other transparent container is recorded, and the flowability of the slurry can be obtained; and the driving device drives the connecting device to rotate by 180 degrees again.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a slurry fluidity detection device. Background Art

[0002] The fluidity of lithium-ion battery slurry is an important parameter that reflects the quality of coating. It will directly affect the electrical performance of the subsequent finished battery (capacity, voltage and interface). As time changes, the slurry will have a certain degree of sedimentation or viscosity changes, resulting in changes in the slurry fluidity. There are currently two common methods for testing slurry fluidity. One is to measure the distance a certain volume or weight of slurry flows on an inclined plane per unit time, and the other is the weight of the slurry passing through a certain pore or screen per unit time. Although the above two technologies can currently compare the fluidity of the slurry to a certain extent, they are both one-time tests and cannot repeatedly measure the fluidity of the slurry within a certain time interval, which is insufficient. Summary of the invention

[0003] The utility model aims to at least improve one of the technical problems existing in the prior art. To this end, the utility model proposes a slurry fluidity detection device.

[0004] According to the slurry fluidity detection device of the first embodiment of the utility model, it includes:

[0005] Two transparent containers with openings and scale lines provided thereon;

[0006] A screen is arranged between the openings of the two transparent containers;

[0007] A connecting device, used for detachably arranging the screen between the openings of the two transparent containers;

[0008] A driving device is used to drive the connecting device to rotate.

[0009] According to the slurry fluidity detection device of the utility model, after a transparent container is filled with slurry, the screen is fixed between two transparent containers through the connecting device. During detection, the driving device drives the connecting device to rotate 180° and then starts timing. The time required for the slurry to completely flow from one transparent container to another transparent container is recorded, and the fluidity of the slurry can be obtained. When it is necessary to repeat the measurement of the fluidity of the slurry, the driving device drives the connecting device to rotate 180° again.

[0010] In a possible implementation manner of the first aspect, the transparent container has a circular opening portion and a truncated cone-shaped remaining portion, so that the connecting device can connect the two transparent containers and the screen together.

[0011] In a possible implementation manner of the first aspect, the mesh size of the sieve is 100-300 meshes.

[0012] In a possible implementation of the first aspect, the connecting device includes two semicircular locking members, one of which is connected to the driving device, and the two locking members are detachably connected, one of the locking members is provided with grooves on the inner wall at both ends, and the other locking member is provided with grooves on the outer wall at both ends, and the ends of the two locking members match each other and are fixed by bolts, thereby facilitating installation and disassembly.

[0013] In a possible implementation of the first aspect, the driving device includes a round rod, a vertical rod and at least two blocks, the vertical rod is provided with a through hole and at least two slots, the through hole is communicated with the slots, the block is arranged on the round rod, the round rod cooperates with the through hole, the block cooperates with the slots, the transparent container containing the slurry is below another transparent container, during testing, the round rod is moved so that the two blocks thereon are disengaged from the slots, the timing is started after the round rod is rotated 180°, the round rod is moved in the opposite direction so that the two blocks thereon cooperate with the slots, and the time required for the slurry to completely flow from one transparent container to another transparent container is recorded, and when repeated measurement is required, the above operation is repeated.

[0014] In a possible implementation of the first aspect, a stopper is detachably provided at one end of the round rod. Specifically, the stopper is a circular stopper, which is threadedly connected to one end of the round rod. When installing, after inserting one end of the round rod into the through hole, the stopper is installed on the one end of the round rod, which can prevent the round rod from falling out of the through hole, and this structure is easy to install and disassemble.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of the connection between two transparent containers and a screen in an embodiment of the utility model;

[0019] Figure 3It is a top view of the connection of two locking members in the embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional view of a vertical rod in an embodiment of the utility model.

[0021] Reference numerals:

[0022] Transparent container 10;

[0023] Screen 2; Locking piece 3;

[0024] Round rod 4, stopper 401;

[0025] Vertical rod 5, through hole 501, slot 502;

[0026] Block 6;

[0027] Bottom plate 7. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] The terms "first", "second", "third", etc. in the specification and claims of the present application and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a series of steps or units are included, or optionally, steps or units not listed are included, or optionally, other steps or units inherent to these processes, methods, products or devices are included.

[0032] Only the part relevant to the present application but not all content is shown in the accompanying drawings.Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processing or methods described as flow charts.Although flow charts describe various operations (or steps) as sequential processing, many operations therein can be implemented in parallel, concurrently or simultaneously.In addition, the order of various operations can be rearranged.Described processing can be terminated when its operation is completed, but can also have additional steps not included in the accompanying drawings.Described processing can correspond to method, function, procedure, subroutine, subprogram etc.

[0033] As used in this specification, the terms "component", "module", "system", "unit", etc. are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a unit can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or distributed between two or more computers. In addition, these units can be executed from various computer-readable media having various data structures stored thereon. Units can communicate through local and / or remote processes, for example, based on signals having one or more data packets (e.g., data from a second unit interacting with another unit in a local system, a distributed system, and / or a network. For example, the Internet interacts with other systems via signals).

[0034] Example 1

[0035] See also Figures 1 to 3 As shown, this embodiment provides a slurry fluidity detection device, which includes:

[0036] Two transparent containers 10 with openings and scale lines provided thereon;

[0037] A screen 2 is arranged between the openings of the two transparent containers 10;

[0038] A connecting device, used to detachably arrange the screen 2 between the openings of the two transparent containers 10;

[0039] A driving device is used to drive the connecting device to rotate.

[0040] According to the slurry fluidity detection device of the utility model, one end of the transparent container 10 is open and a 1000ml scale line is provided on it. 1000ml of slurry is added to one of the transparent containers 10, and the screen 2 is placed between the openings of the two transparent containers 10. The three are fixed by a connecting device. The driving device drives the connecting device to rotate 180° and then starts timing. The time required for the slurry to completely flow from one transparent container 10 to another transparent container 10 is recorded, and the fluidity of the slurry can be obtained. When it is necessary to repeat the measurement of the fluidity of the slurry, the driving device drives the connecting device to rotate 180° again.

[0041] It should be noted that the opening portion of the transparent container 10 is circular, and the remaining portion is truncated cone-shaped, so that the connecting device can connect the two transparent containers 10 and the screen 2 together.

[0042] It should be noted that the mesh number of the sieve 2 is 150 meshes, and the maximum particle size allowed to pass through the sieve is only 100 microns. In other embodiments, the sieve can be selected according to the size of the slurry particles required for coating.

[0043] It should be noted that the connecting device includes two semicircular locking members 3, one of which is connected to the driving device, and the two locking members 3 are detachably connected. One of the locking members 3 has grooves on the inner wall at both ends, and the other locking member 3 has grooves on the outer wall at both ends. The ends of the two locking members 3 match each other and are fixed by bolts, thereby facilitating installation and disassembly.

[0044] It should be noted that the driving device includes a round rod 4, a vertical rod 5 and at least two blocks 6, the vertical rod 5 is provided with a through hole 501 and at least two slots 502, the through hole 501 is communicated with the slots 502, the block 6 is arranged on the round rod 4, the round rod 4 cooperates with the through hole 501, the block 6 cooperates with the slots 502, the transparent container 10 filled with slurry is below another transparent container 10, during testing, the round rod 4 is moved so that the two blocks 6 thereon are disengaged from the slots 502, the timing is started after the round rod 4 is rotated 180°, the round rod 4 is moved in the opposite direction so that the two blocks 6 thereon cooperate with the slots 502, and the time required for the slurry to completely flow from one transparent container 10 to another transparent container 10 is recorded, and when repeated measurement is required, the above operation can be repeated; specifically, it also includes a bottom plate 7, and the vertical rod 5 is connected to the bottom plate 7.

[0045] It should be noted that a stopper 401 is detachably provided at one end of the round rod 4. Specifically, the stopper 401 is a circular stopper, which is threadedly connected to one end of the round rod 4. When installing, after inserting one end of the round rod 4 into the through hole 501, the stopper 401 is installed on the one end of the round rod 4, which can prevent the round rod 4 from falling off from the through hole 501, and this structure is easy to install and disassemble.

[0046] This device is often used to compare a variety of slurries, different slurry mixing methods or changes in the types of main and auxiliary materials, or changes in the proportion of the main and auxiliary materials in the slurry. These slurries all need to be judged for their fluidity.

[0047] Example 2

[0048] This embodiment provides a slurry fluidity detection method, which includes the following steps:

[0049] The device is manufactured by setting scale lines on two transparent containers 10 with one end open, setting the screen 2 between the openings of the two transparent containers 10 and fixing them through two semicircular locking members 3, the two locking members 3 are detachably connected, connecting one of the locking members 3 to one end of a round rod 4, the round rod 4 is provided with at least two blocks 6, the vertical rod 5 is provided with a through hole 501 and at least two slots 502, the round rod 4 cooperates with the through hole 501, and the block 6 cooperates with the slot 502;

[0050] Add slurry, add a certain amount of slurry into one of the transparent containers 10, the transparent container 10 filled with slurry is below the other transparent container 10, and connect one locking member 3 with the other locking member 3 to fix the two transparent containers 10;

[0051] Time recording: move the round rod 4 so that the two blocks 6 thereon are disengaged from the slots 502, rotate the round rod 4 180° and start timing, move the round rod 4 in the opposite direction so that the two blocks 6 thereon are matched with the slots 502, and record the time required for the slurry to completely flow from one transparent container 10 to another transparent container 10. When repeated measurement is required, repeat the above operation.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0055] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A slurry fluidity detection device, characterized in that: include: Two transparent containers (10) with openings and scale lines provided thereon; A screen (2) is arranged between the openings of the two transparent containers (10); A connecting device, used for detachably arranging the screen (2) between the openings of the two transparent containers (10); A driving device is used to drive the connecting device to rotate.

2. The slurry fluidity detection device according to claim 1, characterized in that: The transparent container (10) has a circular opening and a truncated cone shape in the remaining part.

3. The slurry fluidity detection device according to claim 1, characterized in that: The mesh size of the sieve (2) is 150-300 meshes.

4. The slurry fluidity detection device according to claim 1, characterized in that: The connecting device comprises two semicircular locking members (3), one of the locking members (3) is connected to the driving device, and the two locking members (3) are detachably connected.

5. The slurry fluidity detection device according to claim 1, characterized in that: The driving device comprises a round rod (4), a vertical rod (5) and at least two clamping blocks (6); the vertical rod (5) is provided with a through hole (501) and at least two clamping grooves (502); the through hole (501) is communicated with the clamping grooves (502); the clamping block (6) is arranged on the round rod (4); the round rod (4) cooperates with the through hole (501); and the clamping block (6) cooperates with the clamping grooves (502).

6. The slurry fluidity detection device according to claim 5, characterized in that: A stopper (401) is detachably provided at one end of the round rod (4).

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