Lithium battery slurry spraying device and using method

Abstract

The invention relates to the technical field of fluid movement, in particular to a lithium battery slurry spraying device and a using method. A lithium battery slurry spraying device comprises an elastic material storage cavity, the elastic material storage cavity is provided with a material storage space, the material storage space is suitable for containing fluid, and the elastic material storage cavity is provided with a feeding port and a discharging port. The invention provides a lithium battery slurry spraying device and a using method, and aims to solve the problems that a large amount of power is consumed and the size is relatively large due to the fact that a motor works in the jet process when the jet power of a current jet pump comes from the operation of the motor to drive fluid to move at a high speed.

Description

Technical Field

[0001] This invention relates to the field of fluid motion technology, specifically to a lithium battery slurry spraying device and its usage method. Background Technology

[0002] A jet pump is a device that uses a jet of working fluid to transport fluid. Its working principle is as follows: the working fluid is ejected at high pressure from a nozzle, further carrying away the gas in the suction chamber, creating a certain vacuum. The fluid being drawn in enters the suction chamber under the negative pressure. The two fluids mix in the mixing tube, exchanging energy. Further, the fluid velocity and pressure reach equilibrium, and then, after passing through a diffuser, some of the kinetic energy is converted into pressure energy before being stably discharged.

[0003] Because jet pumps have no moving parts, they offer advantages such as stable operation, simple structure, and convenient maintenance, and are widely used in metallurgy, water conservancy, electric power, environmental protection, chemical industry, and aerospace.

[0004] Currently, the power for the jet in a jet pump mainly comes from the electric motor driving the fluid to move at high speed, which then enters the jet pump's suction chamber through a nozzle in the form of a jet, driving the jet pump to operate. During the jet generation process, the electric motor consumes a lot of electricity and generates some noise, and the electric motor itself also has the disadvantage of being relatively large. Summary of the Invention

[0005] In view of this, the present invention provides a lithium battery slurry spraying device and a method of use to solve the problems of the current jet pump jet power coming from the operation of the electric motor driving the fluid to move at high speed, the electric motor doing work in the jet process causing a large amount of power consumption and large size.

[0006] In a first aspect, the present invention provides a lithium battery slurry spraying apparatus, comprising: The elastic storage cavity has a storage space suitable for containing fluid, and has an inlet and an outlet.

[0007] The elastic storage chamber undergoes elastic deformation under drive. In the feeding state, the inlet opens and the outlet closes, increasing the volume of the storage space to draw in fluid. In the discharging state, the inlet closes and the outlet opens, decreasing the volume of the storage space to discharge fluid. During the feeding state, with the inlet open and the outlet closed, the increased volume of the storage space lowers the internal pressure compared to atmospheric pressure, driving the fluid into the storage space. During the discharging state, with the inlet closed and the outlet open, the increased volume of the storage space allows the fluid to exit through the outlet. The entire process requires no electric motor to drive the fluid movement and is relatively compact.

[0008] In one optional embodiment, the elastic storage cavity includes a first piezoelectric film elastic plate and a second piezoelectric film elastic plate respectively, and the first piezoelectric film elastic plate and the second piezoelectric film elastic plate are respectively connected to a power line.

[0009] In one optional embodiment, the system further includes a feed chamber and a discharge chamber, wherein the feed chamber is connected to the feed inlet of the elastic storage chamber, and the discharge chamber is connected to the discharge outlet of the elastic storage chamber.

[0010] In one optional embodiment, a first control valve is provided on the pipeline of the feed chamber, and a second control valve is provided on the pipeline of the discharge chamber.

[0011] In one optional embodiment, the feeding chamber is provided with a feeding piezoelectric film elastic plate, and the discharging chamber is provided with a discharging piezoelectric film elastic plate.

[0012] In one optional embodiment, the device further includes a suction chamber and a nozzle, wherein the nozzle is provided on the inner wall of the suction chamber, the piezoelectric jet is disposed outside the suction chamber, and the discharge end of the discharge chamber is connected to the nozzle.

[0013] In one optional embodiment, the suction chamber further includes a clamping part, a suction section, a mixing section, and a diffusion section. The clamping part is connected to the suction section, and the nozzle is disposed on the inner sidewall of the suction section. The slurry flowing out of the nozzle passes through the suction section, the mixing section, and the diffusion section in sequence before being ejected.

[0014] In one optional embodiment, the system further includes a slurry tank and a support, the support on which the suction chamber is mounted, and the feed end of the feed chamber is connected to the slurry tank pipeline.

[0015] In one alternative embodiment, the system further includes a base on which an electrode film to be coated is disposed, and the outlet of the diffusion section is disposed toward the electrode film to be coated.

[0016] Secondly, the present invention also provides a method of using a lithium battery slurry spraying device, wherein the elastic storage chamber undergoes elastic deformation under drive. In the feeding state, the inlet is opened and the outlet is closed to increase the volume of the storage space to draw in fluid; in the discharging state, the inlet is closed and the outlet is opened to decrease the volume of the storage space to discharge fluid. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the piezoelectric jet injector, nozzle, and suction chamber according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the piezoelectric jet generator according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the piezoelectric jet generator of Embodiment 1 of the present invention in a non-operating state; Figure 4 This is a schematic diagram of the piezoelectric jet generator in the feeding state according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the piezoelectric jet generator in the discharge state according to Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the piezoelectric jet generator according to Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the piezoelectric jet generator in the non-operating state according to Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the piezoelectric jet generator in the feeding state according to Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the piezoelectric jet generator in the discharge state according to Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of a piezoelectric jet generator according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the spraying device according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Piezoelectric jet injector; 101. Elastic storage chamber; 1011. Storage space; 1012. First piezoelectric thin film elastic plate; 1013. Second piezoelectric thin film elastic plate; 1014. Inlet; 1015. Outlet; 102. Inlet chamber; 1021. Inlet end; 103. Outlet chamber; 1031. Outlet end; 104. First control valve; 105. Second control valve; 106. Inlet piezoelectric thin film elastic plate; 107. Outlet piezoelectric thin film elastic plate; 2. Nozzle; 3. Suction chamber; 301. Suction section; 302. Mixing section; 303. Diffusion section; 304. Clamping part; 4. Slurry tank; 5. Electrode diaphragm; 6. First horizontal linear motion module; 7. Control cabinet; 8. Base; 9. Support. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, 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 those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The following is combined Figures 1 to 11 The following describes embodiments of the present invention.

[0022] Example 1 According to an embodiment of the present invention, a lithium battery slurry spraying apparatus is provided, comprising: a piezoelectric jet injector 1, the piezoelectric jet injector 1 including an elastic storage chamber 101, the elastic storage chamber 101 having a storage space 1011, the storage space 1011 being adapted to contain fluid, the elastic storage chamber 101 having an inlet 1014 and an outlet 1015. The elastic storage chamber 101 is driven to undergo elastic deformation. In the feeding state, the inlet 1014 is opened and the outlet 1015 is closed, increasing the volume of the storage space 1011 to draw in fluid; in the discharging state, the inlet 1014 is closed and the outlet 1015 is opened, decreasing the volume of the storage space 1011 to discharge fluid. In the feeding state, the inlet 1014 is opened and the outlet 1015 is closed. As the volume of the storage space 1011 increases, the pressure inside the storage space 1011 will be lower than the external atmospheric pressure. Under the influence of the external atmospheric pressure, the fluid is driven into the storage space 1011. In the discharging state, the inlet 1014 is closed and the outlet 1015 is opened. As the volume of the storage space 1011 increases, the fluid inside the storage space 1011 will be discharged from the outlet 1015. The entire process does not require an electric motor to drive the fluid movement, and since no electric motor is needed, it has the advantage of being small in size.

[0023] In this embodiment, the elastic storage chamber 101 has an inlet 1014 at one end and an outlet 1015 at the other end, and the fluid is slurry.

[0024] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the elastic storage cavity 101 includes a first piezoelectric film elastic plate 1012 and a second piezoelectric film elastic plate 1013, which are respectively connected to a power supply line. Specifically, the power supply is an AC power supply. The current provided by the power supply causes the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 to undergo elastic deformation when energized, thereby changing the volume of the storage space 1011 within the elastic storage cavity 101.

[0025] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it also includes a feeding chamber 102 and a discharging chamber 103. The feeding chamber 102 is connected to the inlet 1014 of the elastic storage chamber 101, and the discharging chamber 103 is connected to the outlet 1015 of the elastic storage chamber 101. The slurry enters the feeding end 1021 of the feeding chamber 102, enters the elastic storage chamber 101 through the feeding chamber 102, and then enters the discharging chamber 103 through the outlet 1015, and is discharged from the discharging end 1031 of the discharging chamber 103.

[0026] In one embodiment, such as Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a feed piezoelectric film elastic plate 106 is provided in the feed chamber 102, and a discharge piezoelectric film elastic plate 107 is provided in the discharge chamber 103. In this embodiment, the feed piezoelectric film elastic plate 106 is connected to the power line, and the feed piezoelectric film elastic plate 106 undergoes elastic deformation to close the feed port 1014 of the elastic storage chamber 101. The discharge piezoelectric film elastic plate 107 is connected to the power line, and the discharge piezoelectric film elastic plate 107 undergoes elastic deformation to close the discharge port 1015 of the elastic storage chamber 101.

[0027] In this embodiment, the cross-section of the elastic storage cavity 101 is rectangular, and the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 are respectively disposed on the corresponding sides of the elastic storage cavity 101.

[0028] In this embodiment, the feed piezoelectric film elastic plate 106, the discharge piezoelectric film elastic plate 107, the first piezoelectric film elastic plate 1012, and the second piezoelectric film elastic plate 1013 are all thin-film piezoelectric materials, and the materials should be polyvinylidene fluoride (PVDF) (film) or polyvinylidene fluoride (PVDF). In this embodiment, the materials constituting the discharge chamber 103 and the feed chamber 102 should be metal or non-metal materials with a certain mechanical strength to provide support for the deformation of the feed piezoelectric film elastic plate 106 and the discharge piezoelectric film elastic plate 107.

[0029] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it also includes an intake chamber 3 and a nozzle 2. The nozzle 2 is provided on the inner wall of the intake chamber 3. The piezoelectric jet 1 is located outside the intake chamber 3. The discharge end 1031 of the discharge chamber 103 is connected to the nozzle 2. Slurry flows through the discharge end 1031 of the discharge chamber 103, allowing the slurry to enter the intake chamber 3 and be sprayed onto the surface of the electrode diaphragm 5 through the intake chamber 3.

[0030] In one embodiment, such as Figure 1 , Figure 10 As shown, the suction chamber 3 further includes a clamping part 304, a suction section 301, a mixing section 302, and a diffusion section 303. The clamping part 304 is connected to the suction section 301. The nozzle 2 is disposed on the inner wall of the suction section 301. The slurry flowing out of the nozzle 2 passes through the suction section 301, the mixing section 302, and the diffusion section 303 in sequence before being sprayed out. In this embodiment, the suction chamber 3 is located above the electrode diaphragm 5, and the slurry is sprayed out towards the electrode diaphragm 5 through the atomization port of the diffusion section 303, achieving uniform slurry spraying. It should be noted that the suction section 301 and the diffusion section 303 are respectively disposed on both sides of the mixing section 302. The cross-section of the suction section 301 is conical, and the inner diameter of the suction section 301 is smaller the closer it is to the mixing section 302; the cross-section of the diffusion section 303 is conical, and the inner diameter of the diffusion section 303 is smaller the closer it is to the mixing section 302.

[0031] In one embodiment, such as Figure 11 As shown, it also includes a slurry tank 4 and a support 9. A suction chamber 3 is installed on the support 9. The feed end 1021 of the feed chamber 102 is connected to the slurry tank 4 via a pipeline. The slurry in the slurry tank 4 passes sequentially through the piezoelectric jet injector 1 and the suction chamber 3 before being sprayed onto the surface of the electrode diaphragm 5. It should be noted that the clamping part 304 is connected to the support 9, and a flow control valve is installed on the pipeline connecting the piezoelectric jet injector 1 and the slurry tank 4 to adjust the flow rate through the pipeline. In this embodiment, the slurry tank 4 is composed of lithium-ion-containing active materials (such as LiCoO2, also known as layered lithium cobalt oxide), conductive materials (such as graphene), binders, and solvents (such as deionized water).

[0032] In this embodiment, as Figure 11 As shown, it also includes a base 8, on which an electrode film 5 to be coated is disposed, and the outlet of the diffuser section 303 is positioned toward the electrode film 5 to be coated. In this embodiment, as... Figure 11As shown, a first horizontal linear motion module 6 is provided on the base 8, and an electrode film 5 to be coated is provided above the first horizontal linear motion module 6. A second horizontal linear motion module and a vertical linear motion module are provided on the bracket 9, wherein the first horizontal linear motion module 6 and the second horizontal linear motion module are arranged vertically. In this embodiment, the structure of the first horizontal linear motion module 6, the second horizontal linear motion module, and the vertical linear motion module is not specifically limited. They can be structures such as lead screw linear modules, synchronous belt linear modules, and rack and pinion linear modules. The control cabinet 7 provided on the base 8 is connected to the wiring of the first horizontal linear motion module 6, the second horizontal linear motion module, and the vertical linear motion module, respectively.

[0033] A method for using a piezoelectric sensor, comprising three states: no feeding, feeding, and discharging, includes the following steps: (1) In the unused state, that is, in the power-off state (power supply is not supplied), when no current passes through, the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 are in a parallel state, the air inlet piezoelectric film elastic plate and the air outlet piezoelectric film elastic plate are in a parallel state, no slurry passes through the inlet end 1021 of the feed chamber 102 and the outlet end 1031 of the outlet chamber 103, and the piezoelectric jet 1 is in a stable non-operating state; (2) After AC power is introduced, in the feeding state, the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 undergo mechanical deformation under the action of the electric field, and both gradually expand outward (the first piezoelectric film elastic plate 1012 moves in the direction away from the second piezoelectric film elastic plate 1013, and the second piezoelectric film elastic plate 1013 moves in the direction away from the first piezoelectric film elastic plate 1012). At the same time, the feeding piezoelectric film elastic plate 106 expands outward so that the slurry at the air inlet end enters the open channel, and the discharging piezoelectric film elastic plate 107 contracts inward to close the discharge port 1015, so that the elastic storage chamber 101 is isolated from the discharge chamber 103. The deformation of the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 makes the storage space of the elastic storage chamber 101... As the volume of space 1011 expands, the pressure difference between the elastic storage chamber 101 and the atmosphere causes the slurry to enter from the feed end 1021 (the increased volume and decreased pressure of the storage space 1011 result in a pressure lower than the external environment pressure, driving the slurry into the storage space 1011 under the influence of the external environment pressure). The slurry then enters the elastic storage chamber 101 through the air inlet chamber to maintain pressure balance, completing the feeding process. Simultaneously, strain gauges located on the first piezoelectric thin film elastic plate 1012, the second piezoelectric thin film elastic plate 1013, the feed piezoelectric thin film elastic plate 106, and the discharge piezoelectric thin film elastic plate 107 monitor the deformation in real time and feed it back to the controller. Closed-loop control of the deformation direction and amplitude is achieved by adjusting the phase and amplitude of the alternating current (e.g., using sine wave or square wave modulation). (3) When the alternating current changes in the voltage direction in the same cycle, under the discharge state, the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 undergo mechanical deformation under the action of the electric field, and both gradually shrink inward (the first piezoelectric film elastic plate 1012 moves towards the direction closer to the second piezoelectric film elastic plate 1013, and the second piezoelectric film elastic plate 1013 moves towards the direction closer to the first piezoelectric film elastic plate 1012); at the same time, the discharge piezoelectric film elastic plate 107 expands outward to open the slurry discharge channel in the elastic storage cavity 101, the feed piezoelectric film shrinks inward to isolate the elastic storage cavity 101 from the feed cavity 102, the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 reduce the volume in the elastic storage cavity 101, and the pressure difference between the elastic storage cavity 101 and the atmosphere causes the slurry to enter the nozzle 2 of the suction cavity 3 through the discharge cavity 103 and the discharge end 1031 from the elastic storage cavity 101, thus completing the discharge process; (4) After the slurry enters the nozzle 2, it then enters the suction section 301, the mixing section 302 and the diffusion section 303 in sequence, and finally sprays onto the surface of the electrode film.

[0034] It should be noted that during the operation of the piezoelectric jet generator 1, the first horizontal linear motion module 6, the second horizontal linear motion module, and the vertical linear motion module work together to control the movement trajectory of the suction chamber 3.

[0035] Through the action of alternating current, the piezoelectric jet generator 1 continuously performs the process of "feeding → discharging → feeding → discharging..." to achieve high-frequency directional slurry output and uniform output. Then, driven by other linear motion modules, the slurry can be uniformly sprayed onto the surface of the electrode diaphragm 5.

[0036] Example 2 In this embodiment, as Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, except for the different structures of the feed chamber 102 and the discharge chamber 103, the rest of the structure is the same as in Embodiment 1. In this Embodiment 1, the feed chamber 102 is provided with a pipeline, and a first control valve 104 is provided on the pipeline of the feed chamber 102. The discharge chamber 103 is provided with a pipeline, and a second control valve 105 is provided on the pipeline of the discharge chamber 103. The first control valve 104 and the second control valve 105 can be unidirectional flow control valves or bidirectional flow control valves. In this embodiment, unidirectional valves are preferred. In the feeding state, the first control valve 104 is opened and the second control valve 105 is closed, so that the slurry enters the elastic storage chamber 101 from the feed end 1021 through the feed chamber 102. In the discharge state, the first control valve 104 is closed and the second control valve 105 is opened, so that the slurry enters the nozzle 2 from the elastic storage chamber 101 through the discharge end 1031 of the discharge chamber 103.

[0037] The piezoelectric jet generator 1 and spraying device provided by the present invention have the following advantages: (1) In the feeding state, the feed port 1014 is opened and the discharge port 1015 is closed. When the volume of the storage space 1011 increases, the pressure inside the storage space 1011 will be less than the atmospheric pressure of the external environment. Under the action of the atmospheric pressure of the external environment, the fluid is driven to enter the storage space 1011. In the discharging state, the feed port 1014 is closed and the discharge port 1015 is opened. When the volume of the storage space 1011 increases, the fluid in the storage space 1011 will be discharged from the discharge port 1015. The entire process does not require an electric motor to drive the fluid to move, and it has the advantage of small size; (2) During use, the periodic changes of alternating current drive the first piezoelectric film elastic plate 1012, the second piezoelectric film elastic plate 1013, the feed piezoelectric film elastic plate 106 and the discharge piezoelectric film elastic plate 107 to undergo elastic deformation. The overall movement process is quiet and has lower energy consumption (compared to the loss of motor conversion power), and has the advantages of simple structure, quiet and stable operation and small size; (3) The periodic movement of the first piezoelectric film elastic plate 1012 and the second piezoelectric film elastic plate 1013 is matched with Under the combined effect, the slurry is stably sucked in and discharged. The feeding piezoelectric film elastic plate 106 (or the first control valve 104) and the discharging piezoelectric film elastic plate 107 (or the second control valve 105) work together to control the directional movement of the slurry, ensuring that there is always a stable flow of slurry entering the suction chamber 3; (4) Under the action of the inverse piezoelectric effect, the piezoelectric material can respond quickly according to the change of electric field. The sound is smaller and the power consumption is lower during the mechanical deformation process. At the same time, the piezoelectric material can be made into a small structure such as a thin film, so there is no need to use a motor for driving, thereby reducing the noise during use and reducing the size of the device.

[0038] As an alternative implementation, the cross-section of the elastic storage cavity 101 can also be triangular, circular, or other shapes.

[0039] As an alternative implementation, the elastic storage cavity 101 may also be provided with a third piezoelectric film elastic plate and a fourth piezoelectric film elastic plate, with the third piezoelectric film elastic plate and the fourth piezoelectric film elastic plate being provided correspondingly.

[0040] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A lithium battery slurry spray device, characterized by, The piezoelectric jet device (1) comprises an elastic storage cavity (101) having a storage space (1011) suitable for containing fluid, and the elastic storage cavity (101) has an inlet (1014) and an outlet (1015). The elastic storage cavity (101) comprises a first piezoelectric film elastic plate (1012) and a second piezoelectric film elastic plate (1013) arranged correspondingly, and the first piezoelectric film elastic plate (1012) and the second piezoelectric film elastic plate (1013) are connected with power supply lines respectively.

2. The lithium battery slurry spray device of claim 1, wherein, The piezoelectric jet device (1) further comprises an inlet cavity (102) and an outlet cavity (103), wherein the inlet cavity (102) is communicated with the inlet (1014) of the elastic storage cavity (101), and the outlet cavity (103) is communicated with the outlet (1015) of the elastic storage cavity (101).

3. The lithium battery slurry spray device of claim 2, wherein, A first control valve (104) is arranged on the pipeline of the inlet cavity (102), and a second control valve (105) is arranged on the pipeline of the outlet cavity (103).

4. The lithium battery slurry spray device of claim 3, wherein, An inlet piezoelectric film elastic plate (106) is arranged in the inlet cavity (102), and an outlet piezoelectric film elastic plate (107) is arranged in the outlet cavity (103).

5. The lithium battery slurry spray device of claim 3, wherein, The piezoelectric jet device (1) further comprises a suction cavity (3) and a nozzle (2), wherein the inner side wall of the suction cavity (3) is provided with the nozzle (2), the elastic storage cavity (101) is arranged outside the suction cavity (3), and the outlet end (1031) of the outlet cavity (103) is communicated with the nozzle (2).

6. The lithium battery slurry spray device according to any one of claims 3-5, wherein, The suction cavity (3) further comprises a clamping part (304), a suction section (301), a mixing section (302) and a diffusion section (303), wherein the clamping part (304) is connected with the suction section (301), the nozzle (2) is arranged on the inner side wall of the suction section (301), and the slurry flowing out of the nozzle (2) is sprayed out after passing through the suction section (301), the mixing section (302) and the diffusion section (303) in sequence.

7. The lithium battery slurry spray device of claim 6, wherein, The piezoelectric jet device (1) further comprises a slurry barrel (4) and a support (9), wherein the support (9) is provided with the suction cavity (3), and the inlet end (1021) of the inlet cavity (102) is connected with the slurry barrel (4) in a pipeline manner.

8. The lithium battery slurry spray device of claim 7, wherein, The piezoelectric jet device (1) further comprises a base (8), wherein the base (8) is provided with an electrode membrane (5) to be sprayed, and the outlet of the diffusion section (303) is arranged towards the electrode membrane (5) to be sprayed.

9. The lithium battery slurry spray device of claim 8, wherein, The elastic storage cavity (101) is driven to elastically deform, in the inlet state, the inlet (1014) is opened, the outlet (1015) is closed, the volume of the storage space (1011) is increased to suck in fluid, and in the outlet state, the inlet (1014) is closed, the outlet (1015) is opened, the volume of the storage space (1011) is reduced to discharge fluid.

10. A method of using a lithium battery slurry spray device for use with the lithium battery slurry spray device of claim 1, wherein, ​

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