Battery destaticizing method and battery destaticizing apparatus

Abstract

The present application relates to the technical field of battery manufacturing, and particularly relates to a battery static electricity removing method and a battery static electricity removing device. The battery static electricity removing device comprises an impact shell and a compressed air source. The impact shell is internally provided with an impact cavity, the battery can be sealed and accommodated in the impact cavity, the compressed air source is in communication with the impact cavity, and the compressed air source can repeatedly pressurize and depressurize the impact cavity. The battery static electricity removing method applies the battery static electricity removing device to impact the battery with high-pressure air before the liquid injection process, so that the gap between the layers of the battery cell pole pieces is increased, the static electricity between the layers of the pole pieces and the diaphragm is removed, the liquid injection is facilitated, and the liquid injection efficiency of the electrolyte and the electrolyte immersion effect in the subsequent battery and electrolyte injection process are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery manufacturing, in particular to a battery static electricity removing method and a battery static electricity removing device. BACKGROUND

[0002] With the development of new energy industry, people's demand for batteries is also increasing. In the process of battery processing and manufacturing, electrolyte needs to be poured into the battery shell to soak the several layers of pole pieces in the electrolyte, so as to ensure the normal charge and discharge of the battery.

[0003] In the prior art, in order to ensure the compact structure of the battery, the layers of the battery are tightly adhered together during winding. The pole pieces and the separator in the battery are easy to have static electricity, and the pole pieces and the separator are more tightly adhered together under the action of static electricity. This leads to the difficulty of electrolyte entering the layers of pole pieces in the battery in the subsequent electrolyte injection process, and the electrolyte immersion effect is poor. If the electrolyte immersion effect between the layers of pole pieces is to be ensured, the electrolyte immersion time needs to be prolonged, but the method of prolonging the time reduces the electrolyte immersion efficiency, which cannot meet the actual production demand.

[0004] Therefore, it is urgent to invent a battery static electricity removing method and a battery static electricity removing device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a battery static electricity removing method and a battery static electricity removing device to eliminate the static electricity between the pole pieces and the separator, and improve the electrolyte injection efficiency and the electrolyte immersion effect.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The battery static electricity removing method: before the electrolyte injection process, the battery is impacted by high-pressure air at intervals to increase the gap between the layers of pole pieces in the battery, so as to facilitate the electrolyte injection.

[0008] As a preferred solution, the battery is accommodated in the impact chamber;

[0009] The pressurized air enters the impact chamber through the electromagnetic valve, the impact chamber is pressurized, and then discharged;

[0010] The above steps are repeated until the gap between the layers of pole pieces and the separator and the gap between the layers of pole pieces in the battery are increased to a preset distance, and the static electricity removing operation of the battery is completed.

[0011] In order to achieve the above purpose, the present application also provides a battery static electricity removing device adopting the above battery static electricity removing method, which comprises:

[0012] An impact shell, wherein an impact cavity is arranged in the impact shell, and a battery is sealably accommodated in the impact cavity; and

[0013] A compressed gas source, wherein the compressed gas source is in communication with the impact cavity, and the compressed gas source is capable of repeatedly pressurizing and depressurizing the impact cavity.

[0014] As a preferred solution, the battery destaticizing device further comprises:

[0015] A bearing table for bearing the battery; and

[0016] A jacking mechanism, wherein the bearing table is connected with an output end of the jacking mechanism, the jacking mechanism is capable of jacking the bearing table upward, a lower portion of the impact shell is provided with a battery access opening in communication with the impact cavity, and when the bearing table moves upward to sealably abut against the impact shell at the battery access opening, the battery is sealably accommodated in the impact cavity.

[0017] As a preferred solution, the impact shell comprises:

[0018] A shell body, wherein the shell body is provided with the impact cavity therein; and

[0019] An abutting assembly, wherein the abutting assembly is arranged at a top of an inner cavity of the impact cavity, and when the battery is sealably accommodated in the impact cavity, the abutting assembly is capable of abutting against an upper end surface of the battery.

[0020] As a preferred solution, the abutting assembly comprises:

[0021] An abutting column, wherein a lower end of the abutting column is capable of abutting against the upper end surface of the battery; and

[0022] A resilient member, wherein one end of the resilient member is connected with the top of the inner cavity of the impact cavity, and the other end of the resilient member is connected with an upper end surface of the abutting column.

[0023] As a preferred solution, the impact shell further comprises:

[0024] A control assembly, wherein the shell body is further provided with a pressurizing port and a depressurizing port, the impact cavity is in communication with the compressed gas source through the pressurizing port, the impact cavity is in communication with external air through the depressurizing port, and the control assembly is capable of selectively controlling one of the pressurizing port and the depressurizing port to be in communication.

[0025] As a preferred solution, the control assembly comprises:

[0026] A first electromagnetic valve arranged at the pressurizing port, wherein the first electromagnetic valve is used for controlling the communication or isolation between the compressed gas source and the impact cavity;

[0027] A second electromagnetic valve is arranged at the pressure relief port, and the second electromagnetic valve is used to control the communication or isolation of the impact chamber with the outside air.

[0028] A controller is in communication connection with the first electromagnetic valve and the second electromagnetic valve respectively, and the controller can control the opening and closing of the first electromagnetic valve and the second electromagnetic valve.

[0029] As a preferred solution, the impact shell further comprises:

[0030] A filler is clamped between the outer peripheral wall of the battery and the inner cavity wall of the impact chamber, and the filler can reduce the volume in the impact chamber.

[0031] As a preferred solution, the battery destaticizing device further comprises:

[0032] A pressure detection mechanism is arranged on the shell body, and the pressure detection mechanism is in communication with the detection port, and the pressure detection mechanism can detect and display the pressure in the impact chamber.

[0033] As a preferred solution, the battery destaticizing device further comprises:

[0034] An alarm mechanism is in signal connection with the pressure detection mechanism, and the alarm mechanism can send an alarm according to the detection information of the pressure detection mechanism.

[0035] As a preferred solution, the jacking mechanism is a gas cylinder, and the compressed gas source is also in communication with the gas cylinder, and the compressed gas source can drive the gas cylinder to jack up the bearing table upward.

[0036] As a preferred solution, a plurality of jacking mechanisms are arranged on the battery destaticizing device at intervals, each jacking mechanism is arranged in correspondence with one bearing table and one impact shell, the compressed gas source can synchronously drive a plurality of jacking mechanisms, and the compressed gas source can also synchronously drive a plurality of impact shells.

[0037] The beneficial effects of the present application are as follows:

[0038] The battery destaticizing method provided by the present application can increase the gap between the electrode plates of each layer of the battery by high-pressure air interval impact before the liquid injection process, remove the static electricity between the electrode plates and the diaphragm, so as to facilitate the liquid injection, and effectively improve the liquid injection efficiency of the electrolyte and the electrolyte immersion effect in the subsequent battery and electrolyte injection process.

[0039] The application further provides the battery destaticizing device, by adopting the battery destaticizing method, the gap between the layers of the battery core is increased, the static electricity between the layers of the electrode and the diaphragm is removed, so as to facilitate the liquid injection, effectively improve the electrolyte injection efficiency and the electrolyte immersion effect in the subsequent electrolyte injection process of the battery and the electrolyte. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a structural schematic diagram of the battery destaticizing device provided by the embodiment of the application;

[0041] Figure 2 is a front view of the battery destaticizing device provided by the embodiment of the application, in which the gas tank is hidden;

[0042] Figure 3 is Figure 2 is a sectional view of A-A section in the figure;

[0043] Figure 4 is a sectional view of the battery destaticizing device provided by the embodiment of the application, in which the gas tank is hidden when the jacking assembly is started;

[0044] Figure 5 is Figure 4 is a local enlarged view of A in the figure.

[0045] in the figure:

[0046] 1000, the battery destaticizing device;

[0047] 100, the compressed gas source; 110, the gas tank; 120, the first adjusting part; 130, the second adjusting part;

[0048] 200, the jacking mechanism; 210, the containing shell; 220, the jacking column; 230, the containing cavity;

[0049] 300, the impact shell; 310, the abutting assembly; 311, the end cover; 312, the elastic part; 313, the abutting column; 314, the second sealing part; 315, the third sealing part; 320, the shell main body; 321, the impact cavity; 322, the pressurizing port; 323, the pressure relief port; 324, the detection port; 325, the fourth sealing part; 326, the fifth sealing part; 330, the filling part; 340, the control assembly;

[0050] 400, the bearing table; 410, the first sealing part;

[0051] 500, the rack;

[0052] 600, the alarm mechanism;

[0053] 700, the pressure detection mechanism;

[0054] 2000, the battery. DETAILED DESCRIPTION

[0055] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0056] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0058] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0059] In the prior art, electrolyte needs to be poured into the battery case to soak the several layers of electrode sheets in the battery cell, so as to ensure the normal charge and discharge of the battery. However, in the process of winding the battery cell, in order to ensure the compact structure of the battery cell, the layers of the battery cell are tightly adhered to each other during winding the battery cell, and static electricity is easily generated between the electrode sheets and the separator in the battery cell. The electrode sheets and the separator are more tightly adhered to each other under the action of static electricity. This results in that in the subsequent electrolyte injection process of the battery, the electrolyte is difficult to enter between the layers of electrode sheets in the battery, the electrolyte soaking effect is poor, and if the electrolyte soaking effect between the layers of electrode sheets is to be ensured, the electrolyte soaking time needs to be prolonged. However, the method of prolonging the time reduces the electrolyte soaking efficiency, which cannot meet the actual production requirements.

[0060] To solve the above problems, as shown in the accompanying drawings, Figures 1-5 The embodiment provides a battery destatic method. Before the electrolyte injection process, high-pressure air is used to impact the battery 2000 at intervals, so that the gap between the layers of electrode sheets in the battery cell of the battery 2000 is increased, thereby facilitating the electrolyte injection.

[0061] Further, the battery 2000 is accommodated in the impact cavity 321, the pressurized air enters the impact cavity 321 through the electromagnetic valve, the impact cavity 321 is pressurized, and then the pressurized air is discharged;

[0062] The above steps are repeated until the gap between the layers of electrode sheets and the separator and the gap between the layers of electrode sheets in the battery cell are increased to a preset distance, and the destatic operation of the battery 2000 is completed. The battery destatic method makes the battery cell in the impact cavity 321 loose and expand under the repeated impact of the pressurized air, increases the gap between the layers of electrode sheets and the separator, separates the electrode sheets and the separator, removes the static electricity between the layers of electrode sheets and the separator, and increases the gap between the layers of electrode sheets in the process of pressurizing and depressurizing the battery cell. Increasing the gap between the layers of electrode sheets can facilitate the subsequent electrolyte injection process, effectively improve the electrolyte injection efficiency and the electrolyte soaking effect in the subsequent electrolyte injection process of the battery 2000 and the electrolyte.

[0063] The application further provides a battery static electricity removing device 1000, which comprises an impact shell 300 and a compressed air source 100, wherein the impact shell 300 is internally provided with an impact cavity 321, the battery 2000 can be sealingly accommodated in the impact cavity 321, the compressed air source 100 is in communication with the impact cavity 321, and the compressed air source 100 can repeatedly pressurize and depressurize the impact cavity 321. The battery static electricity removing device 1000 repeatedly pressurizes and depressurizes the impact cavity 321 through the compressed air source 100, so that the cells of the battery 2000 in the impact cavity 321 are repeatedly impacted by the pressurized air and become loose and expanded, the gap between the electrode sheets and the diaphragm of each layer is increased, the electrode sheets and the diaphragm are separated, the static electricity between the electrode sheets and the diaphragm of each layer is removed, and in the process of pressurizing and depressurizing the cells, the gap between the electrode sheets of each layer is also increased, which can facilitate the subsequent electrolyte injection process, effectively improve the electrolyte injection efficiency and the electrolyte immersion effect in the subsequent electrolyte injection process of the battery 2000 and the electrolyte.

[0064] Further, the battery static electricity removing device 1000 further comprises a bearing table 400 and a jacking mechanism 200, wherein the bearing table 400 is used for bearing the battery 2000, the bearing table 400 is connected with the output end of the jacking mechanism 200, the jacking mechanism 200 can upwardly jack the bearing table 400, the lower part of the impact shell 300 is provided with a battery exit opening in communication with the impact cavity 321, and when the bearing table 400 is upwardly moved to sealingly abut against the impact shell 300 at the battery exit opening, the battery 2000 is sealingly accommodated in the impact cavity 321. The bearing table 400 is upwardly jacked by the jacking mechanism 200 to sealingly accommodate the battery 2000 in the impact cavity 321, so that the automation degree is high and the labor intensity of workers is reduced.

[0065] Preferably, as Figure 2 and Figure 3As shown, the jacking mechanism 200 is a cylinder, and the compressed gas source 100 also communicates with the cylinder, and the compressed gas source 100 can drive the cylinder to jacking the bearing table 400 upward. By driving the jacking of the cylinder and pressurizing the impact cavity 321 by the same compressed gas source 100, the structure is compact, and no additional power facilities need to be introduced. Specifically, the cylinder includes a containing shell 210 and a jacking column 220, wherein the containing shell 210 is provided with a containing cavity 230, the jacking column 220 is movably contained in the containing cavity 230, the gas tank 110 compressed gas source 100 is communicated with the containing cavity 230, and the gas tank 110 compressed gas source 100 can drive the jacking column 220 to jacking the bearing table 400 upward relative to the containing shell 210. It should be noted that in this embodiment, the cylinder structure is simple, convenient to operate, and has good jacking effect on the bearing table 400. The specific mechanism and working principle of the cylinder belong to the prior art, and will not be described here. In other embodiments, a linear motor can also be additionally provided according to actual needs, the output end of the linear motor is connected with the bearing table 400, and the linear motor jacks the bearing table 400 upward. This embodiment is not limited in particular.

[0066] It should be noted that in this embodiment, the battery destaticizer 1000 further includes a rack 500, the jacking mechanism 200 and the impact shell 300 are both mounted on the rack 500, and the impact shell 300 is located above the jacking mechanism 200, and the bearing table 400 is arranged between the jacking mechanism 200 and the impact shell 300, which is compact in structure and saves installation space. In other embodiments, the impact shell 300 can also be located below the jacking mechanism 200, and the bearing table 400 is also clamped between the jacking mechanism 200 and the impact shell 300, and the battery 2000 is fixed to the lower end face of the bearing table 400. The jacking mechanism 200 jacks the bearing table 400 downward and seals the battery 2000 in the impact cavity 321 of the impact shell 300. This embodiment is not limited in particular.

[0067] Further, the compressed gas source 100 includes a gas tank 110, a first adjusting member 120 and a second adjusting member 130, the gas tank 110 is connected with the input end of the first adjusting member 120 and the input end of the second adjusting member 130 respectively, the output end of the first adjusting member 120 is connected with the cylinder, and the output end of the second adjusting member 130 is connected with the impact shell 300. It should be noted that in this embodiment, the first adjusting member 120 and the second adjusting member 130 are both pressure increasing valves, and the gas tank 110, the first adjusting member 120, the second adjusting member 130, the cylinder and the impact shell 300 are all connected by pipelines (not shown in the figure). By arranging pressure increasing valves between the gas tank 110 and the cylinder and the impact shell 300, the pressure of the pressurized air can be increased, the upper limit of the driving force can be increased, and thus the jacking effect of the cylinder and the pressurizing effect of the impact cavity 321 can be improved.

[0068] When it is needed to seal the battery 2000 in the impact cavity 321 of the impact shell 300, the gas tank 110 is started to drive the pressurized valve, and the pressurized air is delivered into the accommodating cavity 230 of the lifting mechanism 200. The pressurized air drives the lifting column 220 to move upward, and in turn drives the battery 2000 placed on the bearing table 400 to enter the impact cavity 321 along the battery exit, until the bearing table 400 abuts against the battery exit, at this time, the battery 2000 is sealed in the impact cavity 321 of the impact shell 300.

[0069] It should be noted that, in the present embodiment, in order to ensure the sealing effect of the bearing table 400 and the shell body 320, the first sealing member 410 is arranged on the bearing table 400. When the bearing table 400 abuts against the lower end surface of the shell body 320, the first sealing member 410 can be clamped between the bearing table 400 and the battery exit, and the first sealing member 410 is used to block the gap between the bearing table 400 and the battery exit. Specifically, the first sealing member 410 is a rubber gasket, which has good elasticity and sealing effect. In other embodiments, the first sealing member 410 can also be a gasket made of other elastic materials, which is not limited in the present embodiment.

[0070] Further, the battery destaticizing device 1000 is provided with a plurality of lifting mechanisms 200 arranged at intervals, each of the lifting mechanisms 200 is correspondingly arranged with a bearing table 400 and an impact shell 300, and the gas tank 110 can synchronously drive a plurality of lifting mechanisms 200, and the gas tank 110 can also synchronously drive a plurality of impact shells 300. By arranging a plurality of lifting mechanisms 200 arranged at intervals, and the bearing table 400 and the impact shell 300 matched with the lifting mechanism 200, the destaticizing operation of a plurality of batteries 2000 can be realized, and the work efficiency is improved.

[0071] In combination with Figure 4 With Figure 5The specific mechanism of the impact shell 300 is described as follows. The impact shell 300 comprises an abutting assembly 310 and a shell body 320. The shell body 320 is provided with an impact cavity 321. The abutting assembly 310 is arranged at the upper end of the impact cavity 321. When the battery 2000 is sealed and accommodated in the impact cavity 321, the abutting assembly 310 can abut against the upper end surface of the battery 2000. The abutting assembly 310 is used to position the relative position of the battery 2000 and the impact cavity 321. By sealing the upper opening of the impact cavity 321 through the abutting assembly 310, the sealing effect in the impact cavity 321 can be effectively guaranteed. Moreover, the abutting assembly 310 can position the relative position of the battery 2000 and the impact cavity 321, so as to avoid the movement of the battery 2000 relative to the impact cavity 321 during the pressurization and pressure relief processes. It should be noted that, in the embodiment, the impact cavity 321 penetrates through the shell body 320 upward and downward, and the abutting assembly 310 can seal the upper opening of the impact cavity 321.

[0072] Further, the abutting assembly 310 comprises an abutting column 313 and an elastic member 312. The lower end surface of the abutting column 313 can abut against the upper end surface of the battery 2000. One end of the elastic member 312 is connected to the top of the inner cavity of the impact cavity 321, and the other end of the elastic member 312 is connected to the upper end surface of the abutting column 313. When the battery 2000 with a height greater than a preset height of the battery 2000 needs to be subjected to the electrostatic discharge treatment, the abutting column 313 can compress the elastic member 312 to increase the maximum volume of the impact cavity 321, improve the applicability of the impact cavity 321, and further improve the overall applicability of the impact shell 300. It should be noted that, in the embodiment, the abutting assembly 310 further comprises an end cover 311. The end cover 311 is inserted into and fixed to the upper end surface of the shell body 320. The end cover 311 is used to seal the upper opening of the impact cavity 321. One end of the elastic member 312 is connected to the end cover 311, and the other end of the elastic member 312 is connected to the upper end surface of the abutting column 313. In the embodiment, the elastic member 312 is a spring. The spring has a simple structure, low cost, and large elasticity. In other embodiments, the elastic member 312 can also be a rubber block or other elastic structure. The embodiment is not limited in particular.

[0073] In order to improve the sealing effect of the abutting assembly 310 and the shell body 320, in the embodiment, the abutting assembly 310 further comprises a second sealing member 314 and a third sealing member 315. The end cover 311 comprises an insertion portion and an abutting portion connected with each other. The diameter of the insertion portion is smaller than that of the abutting portion. The insertion portion is inserted into the shell body 320 along the upper side of the shell body 320. The abutting portion abuts against the upper end surface of the shell body 320. The second sealing member 314 is arranged between the end cover 311 and the upper end surface of the shell body 320. The second sealing member 314 is used to seal the gap between the abutting portion and the shell body 320. The third sealing member 315 is arranged between the side wall of the insertion portion of the end cover 311 and the side wall of the impact cavity 321. The third sealing member 315 is used to seal the gap between the insertion portion and the shell body 320. It should be noted that, in the embodiment, the second sealing member 314 and the third sealing member 315 are both rubber gaskets. The rubber gaskets have large elasticity and good sealing effect. In other embodiments, the second sealing member 314 and the third sealing member 315 can also be gaskets made of other elastic materials. The embodiment is not limited in this regard.

[0074] Preferably, the impact shell 300 further comprises a control assembly 340. The shell body 320 is further provided with a pressurizing port 322 and a pressure relief port 323. The impact cavity 321 is in communication with the compressed air source 100 through the pressurizing port 322. The impact cavity 321 is in communication with the external air through the pressure relief port 323. The control assembly 340 can selectively control one of the pressurizing port 322 and the pressure relief port 323 to be in communication. When the gas tank 110 needs to be pressurized, the control assembly 340 connects the gas tank 110 with the pressurizing port 322 and closes the impact cavity 321 with the pressure relief port 323. At this time, the pressurized air in the gas tank 110 enters the impact cavity 321 through the pressurizing valve and the pressurizing port 322 to pressurize the impact cavity 321. When the pressurized air in the impact cavity 321 needs to be depressurized, the control assembly 340 closes the gas tank 110 with the pressurizing port 322 and connects the pressure relief port 323 with the impact cavity 321. At this time, the pressurized air in the impact cavity 321 is discharged from the impact cavity 321 along the pressure relief port 323 to depressurize the impact cavity 321.

[0075] Further, the control assembly 340 comprises a first electromagnetic valve, a second electromagnetic valve, and a controller. The first electromagnetic valve is arranged at the pressurizing port 322 and is used to control the conduction or isolation between the compressed air source 100 and the impact cavity 321. The second electromagnetic valve is arranged at the pressure relief port 323 and is used to control the conduction or isolation between the impact cavity 321 and the external air. The controller is connected to the first electromagnetic valve and the second electromagnetic valve in a wired manner, and can independently control the opening and closing of the first electromagnetic valve and the second electromagnetic valve. Specifically, the shell body 320 further comprises a fourth sealing member 325 and a fifth sealing member 326. The fourth sealing member 325 is arranged between the first electromagnetic valve and the pressurizing port 322 and is used to seal the gap between the first electromagnetic valve and the pressurizing port 322. The fifth sealing member 326 is arranged between the second electromagnetic valve and the pressure relief port 323 and is used to seal the gap between the second electromagnetic valve and the pressure relief port 323. It should be noted that, in the present embodiment, the fourth sealing member 325 and the fifth sealing member 326 are rubber gaskets, which have good elasticity and sealing effect. In other embodiments, the fourth sealing member 325 and the fifth sealing member 326 can also be gaskets made of other elastic materials, and the present embodiment does not make specific limitations.

[0076] Preferably, the impact shell 300 further comprises a filling member 330 arranged between the outer peripheral wall of the battery 2000 and the inner cavity wall of the impact cavity 321. The filling member 330 can reduce the volume of the impact cavity 321, facilitating the pressurization treatment of the impact cavity 321. In addition, when it is necessary to perform the electrostatic treatment on the battery 2000 with a diameter greater than the preset diameter of the battery 2000, the filling member 330 in the impact cavity 321 can be removed to increase the inner cavity diameter of the impact cavity 321, thereby improving the applicability of the impact shell 300 to batteries 2000 with different diameters. It should be noted that, in the present embodiment, the filling member 330 is made of steel, which has high hardness and is not easy to deform. In other embodiments, the type of material of the filling member 330 can also be adjusted according to actual needs, as long as the filling member 330 does not deform under a pressurized environment.

[0077] In order to improve the operation safety, the battery destaticizing device 1000 further comprises a pressure detection mechanism 700, wherein a detection port 324 is further formed on the shell body 320, the pressure detection mechanism 700 is in communication with the detection port 324, and the pressure detection mechanism 700 can detect and display the pressure in the impact cavity 321. It should be noted that, in the embodiment, the pressure detection mechanism 700 comprises a pressure sensor and a display, the pressure sensor and the display are connected by a wire harness, the pressure sensor is arranged on the detection port 324, the pressure sensor is used to detect the real-time air pressure in the impact cavity 321, the display can display the detection value of the pressure sensor in real time, and the worker can adjust the pressure in the impact cavity 321 according to the value displayed on the display, so as to avoid the problem that the pressure in the impact cavity 321 is too large to cause danger or too small to repeatedly extrude the battery cell, and to ensure the safety of the working environment and the destaticizing effect of the battery 2000. The specific structure and working principle of the pressure sensor and the display belong to the prior art, and will not be described here.

[0078] Further, the battery destaticizing device 1000 further comprises an alarm mechanism 600, the alarm mechanism 600 is signal-connected with the pressure sensor, and the alarm mechanism 600 can issue an alarm according to the detection information of the pressure sensor. When the pressure sensor detects that the pressure in the impact cavity 321 is insufficient or too large during the pressurizing process, the alarm mechanism 600 can issue a sound and flash a warning light according to the detection information of the pressure sensor, so as to prompt the worker from the two senses of hearing and vision, facilitate the worker to timely adjust the actual air pressure in the impact cavity 321, and further improve the operation safety.

[0079] In order to facilitate the understanding of the battery destaticizing method and the battery destaticizing device 1000 disclosed in the present application, the specific operation steps of the battery destaticizing method will be described below. Figures 1-5 The specific operation steps of the battery destaticizing method will be described below.

[0080] 1) The pressurized air in the air tank 110 drives the cylinder to upwardly lift the bearing table 400 and the battery 2000 placed on the bearing table 400, so that the battery 2000 moves upwardly and is sealingly accommodated in the impact cavity 321;

[0081] 2) The controller is controlled to open the first electromagnetic valve, so as to make the air tank 110 in communication with the impact cavity 321, the pressurized air in the air tank 110 enters the impact cavity 321, and the pressurization of the impact cavity 321 is completed;

[0082] 3) The controller is controlled to close the first electromagnetic valve, so as to make the air tank 110 separate from the impact cavity 321, and open the second electromagnetic valve, so that the pressurized air in the impact cavity 321 is discharged from the impact cavity 321 to the outside air, and the pressure relief of the impact cavity 321 is completed;

[0083] 3) operating the controller to close the second electromagnetic valve, to isolate the impact chamber 321 from the outside air, and to open the first electromagnetic valve, to re-connect the air tank 110 to the impact chamber 321, to re-charge the pressurized air from the air tank 110 into the impact chamber 321, and to re-pressurize the impact chamber 321;

[0084] 4) operating the controller to close the first electromagnetic valve, to isolate the air tank 110 from the impact chamber 321, and to open the second electromagnetic valve, to re-vent the pressurized air in the impact chamber 321 from the impact chamber 321 to the outside air, and to re- depressurize the impact chamber 321;

[0085] 5) repeating the above operation steps 2-4) until the gap between the electrode plates and the separator in each layer of the battery cell and the gap between the electrode plates in each layer are increased to a pre-set distance, and the de-static operation of the battery 2000 is completed.

[0086] Obviously, the above-mentioned embodiments of the present application are merely examples for clarity, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A method for removing static electricity from a battery, applied to a battery static electricity removing apparatus, characterized by: The battery destaticizing device comprises: an impact shell (300) provided with an impact cavity (321) in which a battery (2000) can be sealed and accommodated; and a compressed air source (100) in communication with the impact cavity (321), which can repeatedly pressurize and depressurize the impact cavity (321); The battery destaticizing method comprises: before the liquid injection process, the battery (2000) is impacted by high-pressure air to increase the gap between the layers of the battery (2000) so as to facilitate liquid injection; The battery (2000) is accommodated in the impact cavity (321); The pressurized air enters the impact cavity (321) through the electromagnetic valve, the impact cavity (321) is pressurized, and then discharged; Repeat the above steps until the gap between the layers of the battery (2000) and the gap between the layers of the battery (2000) is increased to a predetermined distance, and the destaticizing operation of the battery (2000) is completed.

2. The battery destaticizing method according to claim 1, characterized by, The battery destaticizing device further comprises: a bearing table (400) for bearing the battery (2000); and a jacking mechanism (200), the bearing table (400) is connected to the output end of the jacking mechanism (200), the jacking mechanism (200) can jacking the bearing table (400) upward, the impact shell (300) is provided with a battery exit at the lower part in communication with the impact cavity (321), when the bearing table (400) moves upward to seal and abut the impact shell at the battery exit, the battery (2000) is sealed and accommodated in the impact cavity (321).

3. The battery destaticizing method according to claim 1, characterized by, The impact shell (300) comprises: a shell body (320) provided with the impact cavity (321) therein; and an abutting assembly (310) provided at the top of the inner cavity of the impact cavity (321), which can abut the upper end surface of the battery (2000) when the battery (2000) is sealed and accommodated in the impact cavity (321).

4. The battery destaticizing method according to claim 3, characterized by, The abutting assembly (310) comprises: an abutting column (313) whose lower end can abut the upper end surface of the battery (2000); and a resilient member (312) having one end connected to the top of the inner cavity of the impact cavity (321) and the other end connected to the upper end surface of the abutting column (313).

5. The battery destaticizing method according to claim 3, wherein The impact shell (300) further comprises: The control assembly (340) is arranged to selectively control one of the pressurizing port (322) and the pressure relief port (323) to be open.

6. The battery destaticizing method according to claim 5, wherein The control assembly (340) comprises: a first electromagnetic valve arranged at the pressurizing port (322), the first electromagnetic valve being configured to control the compressed gas source (100) to be connected to or disconnected from the impact chamber (321); a second electromagnetic valve arranged at the pressure relief port (323), the second electromagnetic valve being configured to control the impact chamber (321) to be connected to or disconnected from the ambient air; and a controller in signal communication with the first electromagnetic valve and the second electromagnetic valve, the controller being configured to control the first electromagnetic valve and the second electromagnetic valve to be opened or closed.

7. The battery destaticizing method according to claim 3, wherein The impact shell (300) further comprises: a filler (330) arranged between the outer wall of the battery (2000) and the inner wall of the impact chamber (321), the filler (330) being configured to reduce the volume of the impact chamber (321).

8. The battery destaticizing method according to claim 3, wherein The battery destaticizing device further comprises: a pressure detection mechanism (700), the shell body (320) is further provided with a detection port (324), the pressure detection mechanism (700) is in communication with the detection port (324), and the pressure detection mechanism (700) is configured to detect and display the pressure in the impact chamber (321).

9. The battery destaticizing method according to claim 8, wherein The battery destaticizing device further comprises: an alarm mechanism (600), the alarm mechanism (600) is in signal communication with the pressure detection mechanism (700), and the alarm mechanism (600) is configured to send an alarm according to the detection information of the pressure detection mechanism (700).

10. The battery destaticizing method according to claim 2, wherein The jacking mechanism (200) is a pneumatic cylinder, the compressed gas source (100) is in communication with the pneumatic cylinder, and the compressed gas source (100) is configured to drive the pneumatic cylinder to jack up the bearing table (400) upward.

11. The battery destaticizing method according to claim 2, characterized by, A plurality of jacking mechanisms (200) are arranged on the battery destaticizing device at intervals, each jacking mechanism (200) is arranged in correspondence with one bearing table (400) and the impact shell (300), the compressed gas source (100) is configured to synchronously drive a plurality of jacking mechanisms (200), and the compressed gas source (100) is further configured to synchronously drive a plurality of impact shells (300).

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