Ultrasonic accelerated infiltration rate device and infiltration method

Abstract

The present invention relates to an ultrasonic accelerated infiltration rate device, comprising: a controller, an ultrasonic transducer with an ultrasonic horn at one end, an aluminum shell battery filled with electrolyte, a static box with a static cavity, a bottom plate placed in sequence at the bottom of the static cavity, an elastic gasket, a middle hole arranged at the bottom of the static cavity and penetrating the lower end of the static box, a lower hinge, an elastic horn whose lower end is hinged to one end of the ultrasonic horn through the lower hinge, an upper hinge passing through the middle hole and connected to the lower end of the bottom plate and the upper end of the elastic horn, an angle adjustment device for the elastic horn, a battery pressing device; the ultrasonic transducer is electrically connected to the controller. The ultrasonic accelerated infiltration rate device has high infiltration efficiency and good infiltration effect.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery preparation, in particular to an ultrasonic accelerated infiltration rate device and an infiltration method. Background Art

[0002] In the production process of lithium batteries, after the battery is assembled, the electrolyte needs to be injected into the battery cell as a lithium ion current transmission medium during the battery charging and discharging process; after the injection, the electrolyte does not completely and quickly penetrate into the positive and negative pole pieces and diaphragms of the battery, and it takes a long time to allow the electrolyte to fully penetrate the positive and negative pole pieces and battery diaphragms. The lithium battery electrolyte infiltration method can be obtained from the invention of Chinese patent application number: CN 202111164914.8, which involves a method for electrolyte infiltration of lithium-ion batteries. The traditional lithium battery electrolyte infiltration method has the disadvantages of low infiltration efficiency and poor infiltration effect. Therefore, it has become an urgent problem to design an ultrasonic accelerated infiltration rate device and infiltration method with high infiltration efficiency and good infiltration effect. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the current lithium battery electrolyte infiltration method, such as low infiltration efficiency and poor infiltration effect, and to provide an ultrasonic accelerated infiltration rate device and infiltration method with high infiltration efficiency and good infiltration effect.

[0004] The specific technical solution of the present invention is:

[0005] An ultrasonic accelerated wetting rate device comprises: a controller, an ultrasonic transducer with an ultrasonic horn at one end, an aluminum shell battery filled with electrolyte, a stationary box with a stationary cavity, a bottom plate and an elastic gasket placed in sequence at the bottom of the stationary cavity, a middle hole arranged at the bottom of the stationary cavity and penetrating the lower end of the stationary box, a lower hinge, an elastic horn whose lower end is hinged to one end of the ultrasonic horn through the lower hinge, an upper hinge passing through the middle hole and respectively connected to the lower end of the bottom plate and the upper end of the elastic horn, an elastic horn angle adjustment device, and a battery pressing device; the ultrasonic transducer is electrically connected to the controller; the aluminum shell battery is placed in the stationary cavity and on the elastic gasket; the elastic horn is made of spring steel.

[0006] Preferably, the upper hinge comprises: a ball joint seat having a spherical notch-shaped receiving hole at the lower end and the upper end connected to the lower end of the base plate, and a sphere installed in the spherical notch-shaped receiving hole; the upper end of the elastic amplitude changing rod is connected to the sphere; the radius of the spherical notch-shaped receiving hole is adapted to the radius of the sphere.

[0007] Preferably, the lower hinge comprises: a left-right through groove provided at the lower end of the elastic amplitude variable rod, two vertical long grooves provided at the front end and the rear end of the elastic amplitude variable rod and respectively connected with the left-right through groove, and a shifting shaft passing through one end of the ultrasonic amplitude variable rod; the thickness of one end of the ultrasonic amplitude variable rod is adapted to the thickness of the left-right through groove, and the diameter of the shifting shaft is adapted to the width of the vertical long groove; one end of the ultrasonic amplitude variable rod is inserted into the left-right through groove and the two ends of the shifting shaft extend into the two vertical long grooves one by one.

[0008] Preferably, the elastic amplitude rod angle adjustment device includes: a base, at least one left and right linear guide rail mounted on the base, a linear stepper motor, a nut mounted on one side of the ultrasonic transducer and threadedly connected to the screw of the linear stepper motor; the lower end of the ultrasonic transducer is connected to the slider of the left and right linear guide rails; the linear stepper motor is electrically connected to the controller.

[0009] Preferably, the battery pressing device comprises: four pressing assemblies corresponding one-to-one to the four side walls of the static box; the pressing assembly comprises: a pressing plate with an outwardly inclined guide plate at the upper end, and a compression spring group with two ends connected one-to-one to the inner ends of the side walls and the outer ends of the pressing plate; the pressing plates of the four pressing assemblies press against the four side surfaces of the aluminum shell battery one-to-one; the guide plate and the pressing plate are made of nylon.

[0010] Preferably, the ultrasonic acceleration infiltration rate device further comprises: an ultrasonic transducer power supply; the ultrasonic transducer power supply is electrically connected to the ultrasonic transducer via a spiral telescopic cable.

[0011] Preferably, a plurality of legs are provided at the lower end of the static box.

[0012] A method for infiltration of an ultrasonic accelerated infiltration rate device, wherein the ultrasonic accelerated infiltration rate device is the ultrasonic accelerated infiltration rate device described above, wherein: (1) an aluminum shell battery filled with electrolyte is placed in a static chamber and placed on an elastic gasket for static infiltration, and the pressing plates of four pressing assemblies press against the four sides of the aluminum shell battery one by one; (2) the screw of a linear stepper motor of an elastic amplitude variable rod angle adjustment device rotates, and the elastic amplitude variable rod is driven to move through a nut, an ultrasonic transducer, and an ultrasonic amplitude variable rod, and the elastic amplitude variable rod is adjusted to a vertical position, a leftward tilted position, and a rightward tilted position, respectively, to perform ultrasonic accelerated infiltration, and the infiltration efficiency and infiltration effect are improved by changing the transmission direction of the vibration wave from bottom to top in the aluminum shell battery; (3) the screw of the linear stepper motor repeatedly rotates forward and reversely, and the elastic amplitude variable rod is driven to swing back and forth to the left and right at a set angle through a nut, an ultrasonic transducer, and an ultrasonic amplitude variable rod, thereby further improving the infiltration efficiency and infiltration effect.

[0013] The angles of the elastic amplitude changing rod tilting to the left and to the right are less than or equal to 30 degrees.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the ultrasonic accelerated infiltration rate device, the aluminum shell battery filled with electrolyte is placed in a static chamber and placed on an elastic gasket for static infiltration, and has an ultrasonic amplitude rod and an elastic amplitude rod connected by an upper hinge. Under the action of the elastic amplitude rod angle adjustment device, the inclination of the elastic amplitude rod can be adjusted, thereby changing the transmission direction of the vibration wave from bottom to top in the aluminum shell battery. The ultrasonic energy generated by the ultrasonic transducer is transmitted to the electrolyte inside the aluminum shell battery, causing the electrolyte to vibrate. When entering the pores, the surface tension of the bubbles in the pores can be quickly destroyed to make the electrolyte flow quickly. Under the original infiltration conditions, the infiltration speed can be accelerated, the infiltration efficiency is high, and the infiltration effect is good. The structure of the upper hinge and the lower hinge is conducive to the elastic amplitude rod being tilted and swung without interference. The elastic amplitude rod angle adjustment device is driven by a linear stepping motor, with a simple structure and high motion accuracy. The pressing plates of the four pressing assemblies of the battery pressing device press the four side surfaces of the aluminum shell battery one by one, which helps to prevent the aluminum shell battery from sliding and shifting horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the vibration wave transmission direction when the elastic horn is tilted to the left;

[0017] Figure 3 It is a schematic diagram of the vibration wave transmission direction when the elastic amplitude rod is tilted to the right.

[0018] In the figure: controller 1, ultrasonic amplitude transformer 2, ultrasonic transducer 3, aluminum shell battery 4, static chamber 5, static box 6, bottom plate 7, elastic gasket 8, middle hole 9, elastic amplitude transformer 10, ball notch receiving hole 11, ball joint seat 12, sphere 13, vertical long groove 14, toggle shaft 15, base 16, left and right linear guide rails 17, linear stepping motor 18, nut 19, guide plate 20, pressure plate 21, compression spring group 22, ultrasonic transducer power supply 23, support foot 24, vibration wave 25. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3As shown: an ultrasonic accelerated infiltration rate device, comprising: a controller 1, an ultrasonic transducer 3 with an ultrasonic horn 2 at one end, an aluminum shell battery 4 filled with electrolyte, a stationary box 6 with a stationary chamber 5, a bottom plate 7 and an elastic gasket 8 sequentially installed at the bottom of the stationary chamber 5, a middle hole 9 arranged at the bottom of the stationary chamber 5 and penetrating the lower end of the stationary box 6, a lower hinge, an elastic horn 10 whose lower end is hinged to one end of the ultrasonic horn 2 through the lower hinge, an upper hinge penetrating in the middle hole 9 and connected to the lower end of the bottom plate 7 and the upper end of the elastic horn 10 respectively, an elastic horn angle adjustment device, and a battery pressing device; the aluminum shell battery 4 is placed in the stationary chamber 5 and on the elastic gasket 8; the material of the elastic gasket 8 is rubber; the ultrasonic transducer 3 is electrically connected to the controller 1.

[0021] The upper hinged part includes: a spherical joint seat 12 with a spherical notch-shaped receiving hole 11 at the lower end and an upper end welded to the lower end of the base plate 7, and a sphere 13 installed in the spherical notch-shaped receiving hole 11; the upper end of the elastic amplitude rod 10 is integrally connected with the sphere 13; the radius of the spherical notch-shaped receiving hole 11 is adapted to the radius of the sphere 13.

[0022] The lower hinge comprises: a left-right through groove (not shown) provided at the lower end of the elastic horn 10, two vertical long grooves 14 provided at the front and rear ends of the elastic horn 10 and respectively connected to the left-right through groove, and a toggle shaft 15 passing through one end of the ultrasonic horn 2; the thickness of one end of the ultrasonic horn 2 is adapted to the thickness of the left-right through groove, and the diameter of the toggle shaft 15 is adapted to the width of the vertical long groove 14; one end of the ultrasonic horn 2 is inserted into the left-right through groove and the two ends of the toggle shaft 15 extend into the two vertical long grooves 14 one by one.

[0023] The elastic amplitude rod angle adjustment device includes: a base 16, two left and right linear guides 17 mounted on the base 16, a linear stepping motor 18, and a nut 19 mounted on one side of the ultrasonic transducer 3 and threadedly connected to the screw of the linear stepping motor 18; the lower end of the ultrasonic transducer 3 is threadedly connected to the slider of the left and right linear guides 17; the linear stepping motor 18 is electrically connected to the controller 1.

[0024] The battery pressing device includes: four pressing components corresponding to the four side walls of the static box 6; the pressing components include: a pressing plate 21 with an outwardly inclined guide plate 20 at the upper end, and a compression spring group 22 welded to the inner end of the side wall and the outer end of the pressing plate 21 at both ends; the pressing plates 21 of the four pressing components press the four side surfaces of the aluminum shell battery 4 in a one-to-one manner; the guide plate 20 and the pressing plate 21 are made of nylon.

[0025] The ultrasonic acceleration wetting rate device further comprises: an ultrasonic transducer power supply 23; the ultrasonic transducer power supply 23 is electrically connected to the ultrasonic transducer 3 via a spiral telescopic cable.

[0026] The lower end of the static box 6 is provided with four supporting legs 24 .

[0027] A method for infiltration of an ultrasonic accelerated infiltration rate device, wherein the ultrasonic accelerated infiltration rate device is the ultrasonic accelerated infiltration rate device described above, (1) an aluminum shell battery 4 filled with electrolyte is placed in a static chamber 5 and placed on an elastic gasket 8 for static infiltration, and the pressing plates 21 of the four pressing assemblies press against the four sides of the aluminum shell battery 4 one by one; (2) the screw of the linear stepping motor 18 of the elastic amplitude rod angle adjustment device rotates, and the elastic amplitude rod 2 drives the elastic amplitude rod 3 through the nut 19, the ultrasonic transducer 3, and the ultrasonic amplitude rod 2. The amplitude rod 10 moves, and the elastic amplitude rod 10 is adjusted to a vertical position, a leftward tilted position, and a rightward tilted position, respectively, to perform ultrasonic accelerated infiltration, and the infiltration efficiency and infiltration effect are improved by changing the transmission direction of the vibration wave 25 from bottom to top in the aluminum shell battery 4; (3) The screw of the linear stepper motor 18 repeatedly rotates forward and reverse, and drives the elastic amplitude rod 10 to swing back and forth to the left and right at a set angle through the nut 19, the ultrasonic transducer 3, and the ultrasonic amplitude rod 2, thereby further improving the infiltration efficiency and infiltration effect.

[0028] The angles of the elastic amplitude rod 10 tilting to the left and to the right are less than 30 degrees.

[0029] In addition to the above-mentioned embodiments, within the scope disclosed in the claims and the specification of the present invention, the technical features or technical data of the present invention can be reselected and combined to form new embodiments, which can be achieved by those skilled in the art without creative work. Therefore, these embodiments that are not described in detail in the present invention should also be regarded as specific embodiments of the present invention and within the protection scope of the present invention.

Claims

1. An ultrasonic accelerated wetting rate device, comprising: A controller, an ultrasonic transducer with an ultrasonic amplitude rod at one end, and an aluminum shell battery filled with electrolyte, characterized in that the ultrasonic accelerated infiltration rate device also includes: a static box with a static chamber, a bottom plate and an elastic gasket placed in sequence at the bottom of the static chamber, a middle hole arranged at the bottom of the static chamber, a lower hinge, an elastic amplitude rod whose lower end is hinged to one end of the ultrasonic amplitude rod through the lower hinge, an upper hinge inserted in the middle hole and respectively connected to the lower end of the bottom plate and the upper end of the elastic amplitude rod, an elastic amplitude rod angle adjustment device, and a battery pressing device; the ultrasonic transducer is electrically connected to the controller.

2. The ultrasonic accelerated wetting rate device according to claim 1, characterized in that: The upper hinged part comprises: a spherical joint seat with a spherical notch-shaped receiving hole at the lower end and the upper end connected to the lower end of the bottom plate, a sphere installed in the spherical notch-shaped receiving hole; the upper end of the elastic amplitude changing rod is connected to the sphere; the radius of the spherical notch-shaped receiving hole is adapted to the radius of the sphere.

3. The ultrasonic accelerated wetting rate device according to claim 1, characterized in that: The lower hinged part includes: a left-right through groove arranged at the lower end of the elastic amplitude rod, two vertical long grooves arranged at the front end and the rear end of the elastic amplitude rod and respectively connected to the left-right through groove, and a toggle shaft passing through one end of the ultrasonic amplitude rod; the thickness of one end of the ultrasonic amplitude rod is adapted to the thickness of the left-right through groove, and the diameter of the toggle shaft is adapted to the width of the vertical long groove; one end of the ultrasonic amplitude rod is inserted into the left-right through groove and the two ends of the toggle shaft extend into the two vertical long grooves one by one.

4. The ultrasonic accelerated wetting rate device according to claim 1, characterized in that: The elastic amplitude rod angle adjustment device includes: a base, at least one left and right linear guide rail mounted on the base, a linear stepping motor, a nut mounted on one side of the ultrasonic transducer and threadedly connected to the screw of the linear stepping motor; the lower end of the ultrasonic transducer is connected to the slider of the left and right linear guide rails; the linear stepping motor is electrically connected to the controller.

5. The ultrasonic accelerated wetting rate device according to claim 4, characterized in that: The battery pressing device comprises: four pressing components corresponding to the four side walls of the static box; the pressing component comprises: a pressing plate with an outwardly inclined guide plate at the upper end, and a compression spring group with two ends connected to the inner ends of the side walls and the outer ends of the pressing plate in a one-to-one correspondence.

6. The ultrasonic accelerated wetting rate device according to claim 1, 2 or 3, characterized in that: Also includes: Ultrasonic transducer power supply; the ultrasonic transducer power supply is electrically connected to the ultrasonic transducer.

7. The ultrasonic accelerated wetting rate device according to claim 1, 2 or 3, characterized in that: The lower end of the static box is provided with a plurality of supporting legs.

8. An infiltration method using an ultrasonic accelerated infiltration rate device, wherein the ultrasonic accelerated infiltration rate device is the ultrasonic accelerated infiltration rate device according to claim 5, characterized in that: (1) The aluminum shell battery filled with electrolyte is placed in a static chamber and placed on an elastic gasket for static infiltration. The four pressing plates of the pressing components press against the four sides of the aluminum shell battery one by one; (2) The screw of the linear stepper motor of the elastic amplitude adjustment device rotates, and the elastic amplitude adjustment rod is driven to move through the nut, ultrasonic transducer, and ultrasonic amplitude adjustment rod, and the elastic amplitude adjustment rod is adjusted to a vertical position, a left tilted position, and a right tilted position, respectively, for ultrasonic accelerated infiltration. By changing the transmission direction of the vibration wave from bottom to top in the aluminum shell battery, the infiltration efficiency and the infiltration effect are improved; (3) The screw of the linear stepper motor repeatedly rotates forward and reversely, and the elastic amplitude adjustment rod is driven to swing back and forth to the left and right at a set angle through the nut, ultrasonic transducer, and ultrasonic amplitude adjustment rod, further improving the infiltration efficiency and the infiltration effect.

9. The infiltration method of the ultrasonic accelerated infiltration rate device according to claim 7, characterized in that: The angles of the elastic amplitude changing rod tilting to the left and to the right are less than or equal to 30 degrees.

Images