CN117629872A - Semi-solid slurry extrusion device - Google Patents
Semi-solid slurry extrusion device Download PDFInfo
- Publication number
- CN117629872A CN117629872A CN202311600146.5A CN202311600146A CN117629872A CN 117629872 A CN117629872 A CN 117629872A CN 202311600146 A CN202311600146 A CN 202311600146A CN 117629872 A CN117629872 A CN 117629872A
- Authority
- CN
- China
- Prior art keywords
- semi
- motor
- solid slurry
- fixing device
- cup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 34
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 238000001125 extrusion Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a semi-solid slurry extrusion device which comprises a base, a pressure sensor, a measuring cup fixing device, a pressure head, a motor and a display screen, wherein the measuring cup fixing device is arranged on the base; the semi-solid slurry is loaded in the cup, and the measuring cup fixing device is used for placing the cup; the position of the pressure head corresponds to the position of the cup; the fixed end of the motor is arranged on the base, and the movable end of the motor is connected with the pressure head; the display screen is connected with the pressure sensor and is at least used for displaying the actual pressure value detected by the pressure sensor. According to the invention, the pressure value and the pressurizing time are accurately controlled through the motor, and the real-time display of the actual pressure value is performed by utilizing the display screen, so that the requirement of testing materials is met, the error generated by pressurizing is small, and the consistency of the material density is good.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a semi-solid slurry extrusion device.
Background
In recent years, with the continuous development of new energy industry, the application of positive and negative electrode slurry materials of lithium batteries is also becoming wider and wider. For semi-solid slurries, it is also becoming increasingly important to detect the density change of the slurry as it is being extruded, and the impact of that change on the energy density of the lithium battery. In the prior art, a manual pressurizing mode is generally adopted, so that accurate pressure control and pressurizing time control cannot be realized in slurry extrusion detection, and the slurry density cannot be ensured; on the other hand, the manual operation has large pressurizing error, and the consistency of the slurry is poor, so that the testing effect is affected.
Disclosure of Invention
The invention provides a semi-solid slurry extrusion device to solve the technical problems.
In order to solve the technical problems, the invention provides a semi-solid slurry extrusion device which comprises a base, a pressure sensor, a measuring cup fixing device, a pressure head, a motor and a display screen,
the measuring cup fixing device is arranged on the base, and the pressure sensor is arranged below the measuring cup fixing device;
the semi-solid slurry is loaded in the cup, and the measuring cup fixing device is used for placing the cup;
the position of the pressure head corresponds to the position of the cup;
the fixed end of the motor is arranged on the base, and the movable end of the motor is connected with the pressure head;
the display screen is connected with the pressure sensor and is at least used for displaying the actual pressure value detected by the pressure sensor.
Preferably, the four corners of the bottom of the base are respectively provided with an adjusting foot, and the height of the adjusting feet is adjustable.
Preferably, the measuring cup fixing device adopts a cylindrical shell with an opening at the upper end.
Preferably, an elastic member is mounted on the inner wall of the cylindrical housing.
Preferably, the number of the elastic members is plural, and the plural elastic members are uniformly distributed along the circumferential direction of the inner wall.
Preferably, the shape of the ram matches the shape of the interior cavity of the cup.
Preferably, the motor is controlled by a controller, and the controller is connected with the pressure sensor.
Preferably, the controller is connected with the display screen, and the display screen is further used for setting a preset pressure value and a pressurization time of the motor through the controller.
Preferably, the motor is a servo motor.
Preferably, the pressure head is detachably connected with the movable end of the motor.
Compared with the prior art, the semi-solid slurry extrusion device provided by the invention has the following advantages:
1. according to the invention, the pressure value and the pressurization time can be accurately controlled by the motor, and the real-time display of the actual pressure value is performed by utilizing the display screen, so that the requirement of the test material is met;
2. the extrusion device provided by the invention is used for pressurizing, so that the generated error is small, and the consistency of the material density is good.
Drawings
Fig. 1 is a schematic structural view of a semi-solid slurry extrusion device according to an embodiment of the present invention.
In the figure: 10-base, 11-adjusting foot, 20-pressure sensor, 30-measuring cup fixing device, 40-pressure head, 50-motor.
Detailed Description
In order to describe the technical solution of the above invention in more detail, the following specific examples are listed to demonstrate technical effects; it is emphasized that these examples are illustrative of the invention and are not intended to limit the scope of the invention.
The semi-solid slurry extrusion device provided by the invention, as shown in fig. 1, comprises a base 10, a pressure sensor 20, a measuring cup fixing device 30, a pressure head 40, a motor 50 and a display screen (not shown), wherein:
the measuring cup fixing device 30 is installed on the base 10, and the pressure sensor 20 is installed below the measuring cup fixing device 30; the semi-solid slurry is carried in a cup (not shown) and the measuring cup fixing device 30 is used to place the cup, thereby fixing the cup on the base 10.
The position of the ram 40 corresponds to the position of the cup; the fixed end of the motor 50 is mounted on the base 10, and the movable end is connected with the ram 40. Thus, the motor 50 can drive the pressing head 40 to lift, and the semisolid slurry carried in the cup is extruded.
The display screen is connected to the pressure sensor 20 and is at least used for displaying the actual pressure value detected by the pressure sensor 20.
The pressure sensor 20, the motor 50 and the display screen are combined together, so that the pressure can be controlled in real time, the pressure maintaining time can be adjusted, the effective time pressure maintaining can be carried out, and the requirement of testing materials can be accurately met; and the extrusion device provided by the invention is used for pressurizing, so that the generated error is small, and the consistency of the material density is good.
In some embodiments, please continue to refer to fig. 1, the bottom four corners of the base 10 are respectively provided with an adjusting leg 11, the height of the adjusting leg 11 is adjustable, and after the extrusion device is placed, the base 10 can be adjusted to a horizontal state by adjusting the height of each adjusting leg 11, so as to avoid the problem that the semi-solid slurry in the interior cannot be uniformly stressed due to the inclination of the cup.
In some embodiments, referring to fig. 1, the measuring cup fixing device 30 may be a cylindrical shell with an opening at the upper end, and correspondingly, the cup may also be a cylindrical shell with an outer diameter slightly smaller than that of the measuring cup fixing device 30, and the measuring cup fixing device 30 uses an inner cavity to limit the cup, so as to avoid shaking the cup. In some embodiments, an elastic member (not shown) is mounted on the inner wall of the measuring cup fixing device 30, and the elastic member is used to press and fix the inner cup, so as to fix the relative position of the cup and the upper pressing head 40, and avoid the pressing head 40 from crushing the cup. In some embodiments, the number of the elastic components is plural, and the elastic components are uniformly distributed along the circumferential direction of the inner wall of the measuring cup fixing device 30, so that the central axes of the measuring cup fixing device 30, the cup and the pressing head 40 are coincident, and the relative position relationship with the cup in the pressing process of the pressing head 40 is precisely controlled.
In some embodiments, the shape of the ram 40 matches the shape of the inner cavity of the cup, so that the ram 40 fits the inner cavity of the cup as much as possible, ensuring that the semi-solid slurry is uniformly stressed and does not overflow from the mouth of the cup.
In some embodiments, the motor 50 may be controlled by a controller (not shown) that is connected to the pressure sensor 20, i.e., may use the actual pressure value detected by the pressure sensor 20 as feedback to increase the control speed and accuracy of the controller. According to the invention, multiple groups of pressure tests can be performed through different settings of the controller so as to detect the influence of the difference of the compaction densities of the semi-solid slurry on the lithium battery, and the influence of errors of manual compaction on the correctness of experimental results is avoided. In some embodiments, the controller is connected to the display screen, so that the display screen may be further configured to set, by using the controller, a preset pressure value and a pressurization time of the motor 50, and in a practical application process, different preset pressure values (such as 500N/square meter, 800N/square meter, etc.) and dwell times (such as 10s, 20s, 30s, etc.) may be set according to test requirements to perform a material compaction test, and simultaneously display an actual pressure value and a dwell time in real time, and keep the pressure value for a certain time when the preset pressure value is reached, so as to perform voltage stabilization and improve test accuracy.
In some embodiments, the motor 50 may be a servo motor to further improve the accuracy of the control of the depression of the ram 40.
In some embodiments, the ram 40 may be removably coupled to the movable end of the motor 50 to allow for quick and easy replacement of the appropriate ram 40 when desired (e.g., when a ram 40 or cup needs to be replaced).
In summary, the semi-solid slurry extrusion device provided by the invention comprises a base 10, a pressure sensor 20, a measuring cup fixing device 30, a pressure head 40, a motor 50 and a display screen, wherein the measuring cup fixing device 30 is arranged on the base 10, and the pressure sensor 20 is arranged below the measuring cup fixing device 30; the semi-solid slurry is carried in a cup, and the measuring cup fixing device 30 is used for placing the cup; the position of the ram 40 corresponds to the position of the cup; the fixed end of the motor 50 is arranged on the base 10, and the movable end is connected with the pressure head 40; the display screen is connected to the pressure sensor 20 and is at least used for displaying the actual pressure value detected by the pressure sensor 20. The pressure sensor 20, the motor 50 and the display screen are combined together, so that the pressure can be controlled in real time, the pressure maintaining time can be adjusted, the effective time pressure maintaining can be carried out, and the requirement of testing materials can be accurately met; and the extrusion device provided by the invention is used for pressurizing, so that the generated error is small, and the consistency of the material density is good.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A semi-solid slurry extrusion device is characterized by comprising a base, a pressure sensor, a measuring cup fixing device, a pressure head, a motor and a display screen,
the measuring cup fixing device is arranged on the base, and the pressure sensor is arranged below the measuring cup fixing device;
the semi-solid slurry is loaded in the cup, and the measuring cup fixing device is used for placing the cup;
the position of the pressure head corresponds to the position of the cup;
the fixed end of the motor is arranged on the base, and the movable end of the motor is connected with the pressure head;
the display screen is connected with the pressure sensor and is at least used for displaying the actual pressure value detected by the pressure sensor.
2. The semi-solid slurry pressing apparatus as claimed in claim 1, wherein the adjustment legs are respectively installed at four corners of the bottom of the base, and the height of the adjustment legs is adjustable.
3. The semi-solid slurry pressing device according to claim 1, wherein the measuring cup fixing device adopts a cylindrical housing with an upper end opened.
4. A semi-solid slurry extrusion apparatus as claimed in claim 3 wherein an elastic member is mounted on the inner wall of the cylindrical housing.
5. The semi-solid slurry pressing apparatus as claimed in claim 4, wherein the number of the elastic members is plural, and the plural elastic members are uniformly distributed along the circumferential direction of the inner wall.
6. The semi-solid slurry extrusion apparatus of claim 1 wherein the ram has a shape that matches the shape of the interior cavity of the cup.
7. The semi-solid slurry extrusion apparatus of claim 1 wherein the motor is controlled by a controller, the controller being coupled to the pressure sensor.
8. The semi-solid slurry pressing device of claim 7, wherein the controller is connected to the display screen, the display screen further configured to set a preset pressure value and a pressing time of the motor through the controller.
9. The semi-solid slurry extrusion apparatus of claim 1 wherein the motor is a servo motor.
10. The semi-solid slurry extrusion apparatus of claim 1 wherein the ram is removably coupled to the movable end of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311600146.5A CN117629872A (en) | 2023-11-24 | 2023-11-24 | Semi-solid slurry extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311600146.5A CN117629872A (en) | 2023-11-24 | 2023-11-24 | Semi-solid slurry extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117629872A true CN117629872A (en) | 2024-03-01 |
Family
ID=90019360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311600146.5A Pending CN117629872A (en) | 2023-11-24 | 2023-11-24 | Semi-solid slurry extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117629872A (en) |
-
2023
- 2023-11-24 CN CN202311600146.5A patent/CN117629872A/en active Pending
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