Battery stationary method and device

Abstract

To provide a method for leaving a battery stationary, which allows an electrolyte injected into the battery to quickly and sufficiently permeate the interior of the battery cells, thereby improving manufacturing efficiency.SOLUTION: The present invention discloses a battery stationary method and device, which includes a step S1 of placing a battery after injection into an injection capsule, and then transferring the injection capsule and the battery inside the injection capsule to a first relay conveying line, a step S2 of conveying the injection capsule and the battery inside the injection capsule to a stationary unit via the first relay conveying line, a step S3 of transporting the injection capsule and the battery inside the injection capsule on the first relay conveying line into a stationary cavity of the stationary unit and electrically connecting an auxiliary current-carrying mechanism in the stationary cavity to the positive electrode probe and negative electrode probe of the injection capsule, and a step S4 of powering the auxiliary current-carrying mechanism in the stationary cavity to supply power to the heating plate of the injection capsule, which is then energized and generates heat to heat the battery inside the injection capsule.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to the field of battery manufacturing technology, and more particularly to a battery resting method and apparatus. [Background technology]

[0002] In the battery manufacturing process, after the electrolyte is injected into the battery, the battery usually needs to be left to stand to allow the electrolyte to permeate the battery cells. Currently, the battery is usually placed on a stand to stand after the electrolyte is injected, and since the battery absorbs the electrolyte slowly under natural conditions, it takes a long time to achieve sufficient permeation, which reduces manufacturing efficiency. Summary of the Invention [Problem to be solved by the invention]

[0003] To solve the problems of the prior art, the present invention provides a method and apparatus for leaving a battery in a static state, which allows the electrolyte injected into the battery to quickly and sufficiently permeate the interior of the battery cells, thereby improving manufacturing efficiency. [Means for solving the problem]

[0004] The technical solutions to solve the technical problems of the present invention are as follows:

[0005] A first aspect of the present invention provides a battery stationary method, comprising step S1 of placing a battery after injection into an injection capsule, and then transferring the injection capsule and the battery in the injection capsule to a first relay conveying line; step S2 of conveying the injection capsule and the battery in the injection capsule to a stationary unit via the first relay conveying line; step S3 of transporting the injection capsule and the battery in the injection capsule on the first relay conveying line into a stationary cavity of the stationary unit and electrically connecting an auxiliary current-carrying mechanism in the stationary cavity to the positive electrode probe and the negative electrode probe of the injection capsule; step S4 of turning on power to the auxiliary current-carrying mechanism in the stationary cavity to supply electricity to a heating plate of the injection capsule, which is energized and generates heat to heat the battery in the injection capsule; and step S5 of circulating positive and negative pressure in the stationary cavity. The method includes step S5 of connecting the ring mechanism to the air intake port of the liquid injection capsule, sealing the liquid injection port of the liquid injection capsule, communicating the positive and negative pressure circulation mechanism with a vacuum device, and alternately evacuating the inside of the liquid injection capsule via the positive and negative pressure circulation mechanism using the vacuum device to evacuate and introduce nitrogen gas into the inside of the battery in the liquid injection capsule, step S6 of disconnecting the auxiliary current-carrying mechanism from the power source, disconnecting the positive and negative pressure circulation mechanism from the vacuum device, and separating the positive and negative pressure circulation mechanism from the air intake port of the liquid injection capsule and the liquid injection port of the liquid injection capsule, and then transporting the liquid injection capsule in the stationary cavity and the battery in the liquid injection capsule to a second relay transport line, and step S7 of transporting the liquid injection capsule and the battery in the liquid injection capsule to the next process via the second relay transport line.

[0006] As a preferred technical solution, in step S3, the injection capsule and the battery in the injection capsule on the first relay conveying line are conveyed to a placement area at the bottom of the stationary cavity.

[0007] As a preferred technical solution, in step S3, the upper end of the first probe of the auxiliary current-carrying mechanism is electrically connected to the positive electrode probe of the liquid injection capsule, and the upper end of the second probe of the auxiliary current-carrying mechanism is electrically connected to the negative electrode probe of the liquid injection capsule; in step S4, power is applied to the lower end of the first probe and the lower end of the second probe of the auxiliary current-carrying mechanism; and in step S6, the lower end of the first probe and the lower end of the second probe of the auxiliary current-carrying mechanism are disconnected from the power supply.

[0008] As a preferred technical solution, in step S4, the temperature at which the heating plate heats the battery in the liquid injection capsule is 40 to 50°C.

[0009] As a preferred technical solution, step S5 includes step S51, in which the lifting cylinder of the positive and negative pressure circulation mechanism is used to drive the vent block and the sealing block to move in a direction approaching the liquid injection capsule, thereby fitting the end of the vent block with the air inlet of the liquid injection capsule and fitting the end of the sealing block with the liquid injection port of the liquid injection capsule, thereby realizing connection with the air inlet of the liquid injection capsule and sealing the liquid injection port of the liquid injection capsule; step S52, in which the stationary joint of the positive and negative pressure circulation mechanism is connected to a vacuum device; and step S53, in which the vacuum device is used to connect the stationary joint of the positive and negative pressure circulation mechanism and the vent block to the liquid injection capsule. The method includes step S53 of introducing nitrogen gas into the interior of the battery in the liquid injection capsule, generating positive pressure inside the battery at a pressure of 0.3 to 0.5 MPa and maintaining the pressure for 3 to 4 hours; step S54 of using a vacuum device to evacuate the interior of the liquid injection capsule through the stationary joint and vent block of the positive and negative pressure circulation mechanism, generating negative pressure inside the battery at a pressure of -55 to -65 Kpa and maintaining the pressure for 0.2 to 1 hour; and step S55 of repeating steps S53 to S54 4 to 6 times.

[0010] A second aspect of the present invention provides a battery storage device, comprising: a storage unit, a first relay conveying line, and a second relay conveying line; the storage unit is located between the first relay conveying line and the second relay conveying line; the storage unit comprises a storage multi-story warehouse; the storage multi-story warehouse comprises a storage cavity; the storage cavity is used to arrange an injection capsule and a battery in the injection capsule; and the storage cavity is provided with an auxiliary current-carrying mechanism and a positive / negative pressure circulation mechanism.

[0011] As a preferred technical solution, a bottom plate is provided at the bottom of the resting cavity, a top plate is provided above the bottom plate, and a placement area is provided above the top plate.

[0012] As a preferred technical solution, the auxiliary current-carrying mechanism includes a first probe assembly and a second probe assembly, the first probe assembly includes a first probe sleeve and a first probe installed through the first probe sleeve, a first mounting groove is provided on the top of the bottom plate, a first hole is provided at the bottom of the first mounting groove, a first bypass hole corresponding to the first mounting groove is provided at the top of the top plate, the first probe sleeve is installed in the first mounting groove, an upper end of the first probe passes through the first bypass hole and is located in the placement area, the upper end of the first probe is used to electrically connect to the positive electrode probe of the injection capsule, and a lower end of the first probe passes through the first hole and is located in the space below the bottom of the placement cavity, the lower end is electrically connected to the positive electrode of the power source, the second probe assembly includes a second probe sleeve and a second probe installed through the second probe sleeve, a second mounting groove is formed on the upper part of the bottom plate, a second hole is formed at the bottom of the second mounting groove, a second bypass hole corresponding to the second mounting groove is formed on the upper part of the top plate, the second probe sleeve is installed in the second mounting groove, the upper end of the second probe passes through the second bypass hole and is located in the placement area, the upper end of the second probe is electrically connected to the negative electrode probe of the injection capsule, the lower end of the second probe passes through the second hole and is located in the space below the bottom of the base cavity, and the lower end of the second probe is electrically connected to the negative electrode of the power source.

[0013] As a preferred technical solution, a positioning pin is provided on the top of the stationary bottom plate, and a positioning hole corresponding to the positioning pin is provided on the bottom of the placement area, and the end of the positioning pin passes through the positioning hole and is positioned within the placement area.

[0014] As a preferred technical solution, the positive and negative pressure circulation mechanism includes a first mounting plate, a second mounting plate, a lifting cylinder, a vent block, and a sealing block, an upper portion of the stationary cavity has an upper space communicating with the inside of the stationary cavity, the first mounting plate is installed in the upper space, the second mounting plate is located below the first mounting plate and is located within the stationary cavity, the lifting cylinder is installed on the upper portion of the first mounting plate, and an end of the output shaft of the lifting cylinder passes through a through-hole of the first mounting plate and is connected to an upper portion of the second mounting plate; The lifting cylinder is used to drive the second mounting plate to move up and down, the ventilation block and the sealing block are both installed at the bottom end of the second mounting plate, the end of the ventilation block is used to fit into the intake port of the injection capsule, the end of the sealing block is used to fit into the injection port of the injection capsule, and a static joint corresponding to the ventilation block is provided on the top of the second mounting plate, the static joint is connected to the inside of the ventilation block and is used to connect to a vacuum device. [Effects of the Invention]

[0015] The beneficial effects of the present invention are as follows: The present invention can alternately evacuate and introduce nitrogen gas into the interior of the battery in the injection capsule, thereby enabling the battery to breathe and infiltrate at high temperatures, allowing the electrolyte injected into the battery to infiltrate quickly and sufficiently into the interior of the battery cell, improving manufacturing efficiency. [Brief explanation of the drawings]

[0016] The present invention will now be further described with reference to the following figures and examples. [Figure 1] 1 is a schematic plan view of a battery stationary device according to an embodiment of the present invention; [Figure 2] 2 is a structural schematic diagram of a plurality of resting units of the battery resting apparatus shown in FIG. 1. FIG. [Figure 3] 3 is a structural schematic diagram of a stationary cavity, an auxiliary current-carrying mechanism, and a positive / negative pressure circulation mechanism of the stationary unit shown in FIG. 2. FIG. [Figure 4] 4 is a right-side schematic diagram of the stationary cavity, auxiliary current-carrying mechanism, and positive and negative pressure circulation mechanism shown in FIG. 3. FIG. [Figure 5] 4 is a schematic top view of the bottom plate, the top plate, and the auxiliary current-carrying mechanism shown in FIG. 3. FIG. [Figure 6] 6 is a front view of the bottom plate, the top plate, and the auxiliary current-carrying mechanism shown in FIG. 5. FIG. [Figure 7] 6 is an exploded schematic view of the bottom plate, the top plate, and the auxiliary current-carrying mechanism shown in FIG. 5. FIG. [Figure 8] FIG. 4 is a structural schematic diagram of the positive and negative pressure circulation mechanism shown in FIG. 3. [Figure 9] FIG. 9 is a front view showing the positive and negative pressure circulation mechanism shown in FIG. 8. [Figure 10] FIG. 9 is an exploded schematic view of the positive and negative pressure circulation mechanism shown in FIG. 8. [Figure 11] FIG. 1 is a schematic diagram of the structure of an injection capsule. [Figure 12] FIG. 2 is a cross-sectional view of the liquid injection capsule and the battery. [Figure 13] 2 is a flowchart of a battery standing method based on the battery standing device shown in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0017] The concept, specific structure, and technical effects of the present invention will be clearly and completely described below with reference to the embodiments and drawings, so that the objectives, features, and effects of the present invention can be fully understood. It is clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all coupling / connection relationships in the patents do not simply mean that components are directly connected, but that a better coupling structure can be achieved by adding or removing auxiliary coupling components based on specific implementation conditions. The technical features of the present invention can be combined with each other as long as they are not mutually inconsistent.

[0018] 1, a battery storage apparatus according to one embodiment of the present invention includes a storage unit 10, a first relay transfer line 80, and a second relay transfer line 90. The storage unit 10 is located between the first relay transfer line 80 and the second relay transfer line 90. The first relay transfer line 80 and the second relay transfer line 90 are installed opposite each other on the left and right. There are a plurality of, for example, four, storage units 10, which are installed in order from front to back, with the two central storage units 10, i.e., the second storage unit 10 and the third storage unit 10, being adjacent to each other and being mirror images of each other, the first storage unit 10 and the second storage unit 10 being installed opposite each other from front to back, and the third storage unit 10 and the fourth storage unit 10 being installed opposite each other from front to back, with passages formed between the second storage unit 10 and the first storage unit 10 and between the third storage unit 10 and the fourth storage unit 10, respectively, to facilitate movement of the stacker. As can be appreciated, the number of storage units 10 can be set according to actual circumstances.

[0019] As shown in FIG. 2 , the stationary unit 10 includes a stationary multi-level storage unit 11. In this embodiment, there are a plurality of stationary multi-level storage units 11, for example, 12, which are connected in sequence from left to right. It can be understood that the number of stationary multi-level storage units 11 may be other numbers, for example, one, two, etc., and can be set according to actual circumstances. The stationary multi-level storage unit 11 includes a stationary cavity 20, which is used to arrange an injection capsule 502 and a battery 501 in the injection capsule 502, as shown in FIGS. 11 and 12 . In this embodiment, there are a plurality of stationary cavities 20, for example, nine, which are stacked from bottom to top. It can be understood that the number of stationary cavities 20 may be other numbers, for example, one, two, etc., and can be set according to actual circumstances.

[0020] 11 and 12, the liquid injection capsule 502 has a conventional structure and includes a lower cavity 5021 and a snap cup 5022 (i.e., upper cavity) fitted to the top of the lower cavity 5021. A heating plate is provided on the inner wall of the lower cavity 5021, and a negative electrode probe assembly, a positive electrode probe assembly, and a lower positioning groove are provided at the bottom end of the lower cavity 5021, the negative electrode probe assembly includes four negative electrode probes, the positive electrode probe assembly includes four positive electrode probes, and the negative electrode probes and positive electrode probes are electrically connected to the negative electrode and positive electrode of the heating plate, respectively, and there are two lower positioning grooves. A liquid inlet 5026, an air inlet 5023, and an upper positioning groove 5027 are provided at the top of the snap cup 5022. The snap cup 5022 has a first cavity and a second cavity located below the first cavity, the liquid inlet 5026 and the air inlet 5023 both communicating with the first cavity, the second cavity communicating with the interior of the lower cavity 5021, two air inlets 5023, and four upper positioning grooves 5027. A liquid inlet nozzle 5025 is provided at the top of the second cavity, and the liquid inlet nozzle 5025 communicates with the first cavity.

[0021] The stationary cavity 20 is provided with an auxiliary current-carrying mechanism and a positive / negative pressure circulation mechanism 40. The auxiliary current-carrying mechanism is used for electrical connection to a power source, and for electrical connection to the positive and negative electrode probes at the bottom of the lower cavity 5021 of the liquid injection capsule 502. In actual application, the power source can supply power to the heating plate of the liquid injection capsule 502 via the auxiliary current-carrying mechanism and the positive and negative electrode probes of the liquid injection capsule 502, and the heating plate can be energized to generate heat, thereby heating the battery 501 in the liquid injection capsule 502. The positive and negative pressure circulation mechanism 40 is used to connect to a vacuum device, connect to the air intake port 5023 of the liquid injection capsule 502, and seal the liquid injection port 5026 of the liquid injection capsule 502. In actual application, the vacuum device can alternately draw a vacuum and introduce nitrogen gas into the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 through the positive and negative pressure circulation mechanism 40, thereby realizing alternately drawing a vacuum and introducing nitrogen gas into the battery 501 inside the liquid injection capsule 502.

[0022] Specifically, as shown in FIGS. 3 to 10 , a bottom plate 21 is provided at the bottom of the placement cavity 20, and a top plate 22 is provided above the bottom plate 21. The longitudinal directions of the bottom plate 21 and the top plate 22 are the same as the width direction of the placement cavity 20. A first mounting groove 211 and a second mounting groove 213 are provided at the top of the bottom plate 21, and the longitudinal directions of the first mounting groove 211 and the second mounting groove 213 are the same as the width direction of the bottom plate 21. A first hole 212 is provided at the bottom of the first mounting groove 211, and a second hole 214 is provided at the bottom of the second mounting groove 213. A recessed arrangement area 221 is provided at the top of the top plate 22. A first avoidance hole 222 corresponding to the first mounting groove 211 and a second avoidance hole 223 corresponding to the second mounting groove 213 are provided at the bottom of the arrangement area 221. The placement area 221 is used to place the liquid injection capsule 502 and the battery 501 inside the liquid injection capsule 502 .

[0023] The auxiliary current-carrying mechanism includes a first probe assembly 31 and a second probe assembly 32 .

[0024] The first probe assembly 31 includes a first probe sleeve 311 and a first probe 312 inserted through the first probe sleeve 311. The longitudinal direction of the first probe sleeve 311 is the same as the longitudinal direction of the first mounting groove 211, and the first probe sleeve 311 is inserted into the first mounting groove 211. The upper end of the first probe 312 passes through the first bypass hole 222 and is positioned within the placement area 221. In actual application, the first probe 312 corresponds to the positive probe of the injection capsule 502, and the upper end of the first probe 312 is connected to and electrically connected to the positive probe of the injection capsule 502. The lower end of the first probe 312 passes through the first hole 212 and is positioned within the space below the bottom of the placement cavity 20, and the lower end of the first probe 312 is electrically connected to the positive electrode of the power source. The second probe assembly 32 includes a second probe sleeve 321 and a second probe 322 that passes through the second probe sleeve 321. The longitudinal direction of the second probe sleeve 321 is the same as the longitudinal direction of the second mounting groove 213, and the second probe sleeve 321 is installed in the second mounting groove 213. The upper end of the second probe 322 passes through the second bypass hole 223 and is located in the placement area 221. In actual application, the second probe 322 corresponds to the negative probe of the injection capsule 502, and the upper end of the second probe 322 is connected to the negative probe of the injection capsule 502 to establish an electrical connection with the negative probe of the injection capsule 502. The lower end of the second probe 322 passes through the second hole 214 and is located in the space below the bottom of the placement cavity 20, and the lower end of the second probe 322 is used to electrically connect to the negative pole of the power source. The injection capsule 502 has four positive and four negative probes, and therefore, in this embodiment, there are four first probes 312 and four second probes 322. The four first probes 312 are spaced apart along the longitudinal direction of the first probe sleeve 311, and the four second probes 322 are spaced apart along the longitudinal direction of the second probe sleeve 321.In actual application, the lower ends of the first probe 312 and the second probe 322 are electrically connected to the positive and negative poles of a power supply via a power supply circuit. The power supply may be, for example, an electrical box, and a switch may be installed in the power supply circuit. By turning the switch on or off, the lower ends of the first probe 312 and the second probe 322 can be powered on or off.

[0025] Positioning pins 215 are provided on the top of the stationary bottom plate 21, and positioning holes 224 corresponding to the positioning pins 215 are provided on the bottom of the placement area 221, with the ends of the positioning pins 215 passing through the positioning holes 224 and positioned within the placement area 221. In actual application, the positioning pins 215 correspond to the bottom positioning grooves of the injection capsule 502, and the ends of the positioning pins 215 are fitted into the bottom positioning grooves to position the bottom end of the lower cavity 5021 of the injection capsule 502, thereby facilitating the connection of the upper end of the first probe 312 with the positive electrode probe and the upper end of the second probe 322 with the negative electrode probe. There are two lower positioning grooves on the injection capsule 502, and therefore there are two positioning pins 215 in this embodiment.

[0026] The positive / negative pressure circulation mechanism 40 includes a first mounting plate 41 , a second mounting plate 42 , a lifting cylinder 43 , a ventilation block 44 , and a sealing block 45 .

[0027] The top of the stationary cavity 20 has an upper space communicating with the interior of the stationary cavity 20, and the first mounting plate 41 is installed in the upper space. The second mounting plate 42 is located below the first mounting plate 41 and within the stationary cavity 20. A slot 411 is formed in the top of the first mounting plate 41, and a lifting cylinder 43 is installed at the bottom of the slot 411, with a portion of the lifting cylinder 43 protruding from the top of the first mounting plate 41 and a through-hole at the bottom of the slot 411. The end of the output shaft of the lifting cylinder 43 passes through the through-hole of the first mounting plate 41 and is connected to the top of the second mounting plate 42, and the lifting cylinder 43 is used to drive the second mounting plate 42 to move up and down. The injection capsule 502 has two intake ports 5023, and therefore has two ventilation blocks 44. The ventilation blocks 44 are hollow, and the two ventilation blocks 44 and the sealing block 45 are both installed at the bottom end of the second mounting plate 42. In actual application, the two ventilation blocks 44 and the sealing block 45 correspond to the two intake ports 5023 and the injection port 5026 of the injection capsule 502, respectively. As shown in Figures 11 and 12, the two ventilation blocks The ends of the lock 44 are respectively fitted with the two air intake ports 5023 of the infusion capsule 502 to realize connection with the two air intake ports 5023 of the infusion capsule 502, and the end of the sealing block 45 is fitted with the infusion port 5026 of the infusion capsule 502 to realize sealing of the infusion port 5026 of the infusion capsule 502 and to prevent communication between the first inner cavity of the snap cup 5022 of the infusion capsule 502 and the external environment.

[0028] A vacuum hole corresponding to the vent block 44 is provided on the top of the second mounting plate 42, and the vacuum hole is connected to the interior of the vent block 44. A static joint 441 is provided on the top of the second mounting plate 42 at a position corresponding to the vacuum hole. The static joint 441 is located between the second mounting plate 42 and the first mounting plate 41, and is connected to the vacuum hole. The static joint 441 is used to connect to a vacuum device, such as a vacuum pump for both suction and expansion. This embodiment has two vent blocks 44, and therefore two vacuum holes and two static joints 441. In actual application, the two static joints 441 are each connected to a vacuum pipe, which is connected to the vacuum device. A solenoid valve is installed on the vacuum pipe, and the solenoid valve can be opened or closed to connect or disconnect the two static joints 441 from the vacuum device. The vertical movement of the second mounting plate 42 can move the ventilation block 44, the sealing block 45, and the stationary joint 441 up and down.

[0029] Two guide posts 47 are provided on the top of the second mounting plate 42, and two through holes are provided at the bottom of the slot 411. The tops of the two guide posts 47 pass through the two through holes of the slot 411 and are positioned above the first mounting plate 41. The up and down movement of the second mounting plate 42 can also move the two guide posts 47 up and down, and the guide posts 47 play a guide role in the up and down movement of the second mounting plate 42. It should be understood that the number of guide posts 47 can be determined according to actual circumstances. Two linear bearings 48 are respectively installed through the two through holes of the slot 411, and the two linear bearings 48 are respectively fitted around the two guide posts 47, and the linear bearings 48 support the up and down movement of the corresponding guide posts 47.

[0030] A positioning member 46 is provided at the bottom end of the second mounting plate 42, and in actual application, the positioning member 46 corresponds to the upper positioning groove 5027 of the infusion capsule 502, and the end of the positioning member 46 is fitted into the upper positioning groove 5027 of the infusion capsule 502 to position the upper part of the snap cup 5022 of the infusion capsule 502, so that the end of the vent block 44 is easily fitted into the air inlet 5023 of the infusion capsule 502, and the end of the sealing block 45 is easily fitted into the infusion port 5026 of the infusion capsule 502. There are four upper positioning grooves 5027 on the infusion capsule 502, and therefore there are four positioning members 46 in this embodiment.

[0031] Two protrusions 421 are formed on the bottom end of the second mounting plate 42, and are spaced apart from each other with the longitudinal direction of the protrusions 421 aligned with the longitudinal direction of the second mounting plate 42. The sealing block 45 is located between the two protrusions 421, and the two protrusions 421 are located between the two vent blocks 44. The ends of the vent block 44, the sealing block 45, and the positioning member 46 all protrude from the bottom ends of the protrusions 421. Up and down movement of the second mounting plate 42 can move the two protrusions 421 up and down, and the protrusions 421 are used to abut against the top of the snap cup 5022 of the injection capsule 502.

[0032] In actual application, after the battery 501 has been filled, the battery 501 is placed in the liquid filling capsule 502. Specifically, the snap cup 5022 of the liquid filling capsule 502 is first removed from the top of the lower cavity 5021 of the liquid filling capsule 502, and then the battery 501 after filling is placed in the lower cavity 5021 of the liquid filling capsule 502. At this time, a part of the battery 501 protrudes from the top of the lower cavity 5021 of the liquid filling capsule 502. The snap cup 5022 is fitted over the top of the lower cavity 5021 of the liquid injection capsule 502, a part of the battery 501 protruding from the top of the lower cavity 5021 of the liquid injection capsule 502 is positioned within the first inner cavity of the snap cup 5022 of the liquid injection capsule 502, and the liquid injection port 5011 of the battery 501 is fitted with the lower end of the liquid injection nozzle 5025 of the snap cup 5022. In this way, the battery 501 after injection is placed in the liquid injection capsule 502, as shown in Figure 12. Thereafter, the liquid injection capsule 502 and the battery 501 inside the liquid injection capsule 502 are transported to the stationary unit 10 via the first relay transport line 80.

[0033] Then, the stacker 100 transports the liquid injection capsule 502 and the battery 501 inside the liquid injection capsule 502 on the first relay conveying line 80 to the placement area 221 in the stationary cavity 20, connects the upper end of the first probe 312 to the positive electrode probe of the liquid injection capsule 502, connects the upper end of the second probe 322 to the negative electrode probe of the liquid injection capsule 502, and engages the end of the positioning pin 215 with the lower positioning groove of the liquid injection capsule 502, so that the upper end of the first probe 312 is electrically connected to the positive electrode probe, and the upper end of the second probe 322 is electrically connected to the negative electrode probe, and the positioning pin 215 can be used to position the bottom end of the lower cavity 5021 of the liquid injection capsule 502. Thereafter, power is applied to the lower end of the first probe 312 and the lower end of the second probe 322. In this way, the power supply can be electrically connected to the positive electrode of the heating plate of the liquid injection capsule 502 via the first probe 312 and the positive electrode probe of the liquid injection capsule 502, and can be electrically connected to the negative electrode of the heating plate of the liquid injection capsule 502 via the second probe 322 and the negative electrode probe of the liquid injection capsule 502. In this way, the power supply can energize the heating plate of the liquid injection capsule 502, and the heating plate generates heat after being energized, thereby heating the battery 501 in the lower cavity 5021 of the liquid injection capsule 502. The heating temperature is, for example, 40 to 50°C, preferably 45°C.

[0034] Thereafter, the lifting cylinder 43 is driven to move the second mounting plate 42 downward, so that the end of the ventilation block 44 is engaged with the intake port 5023 of the liquid injection capsule 502, the end of the sealing block 45 is engaged with the liquid injection port 5026 of the liquid injection capsule 502, the end of the positioning member 46 is engaged with the upper positioning groove 5027 of the liquid injection capsule 502, and the two protrusions 421 are respectively in contact with the upper part of the snap cup 5022 of the liquid injection capsule 502. The locking member 46 and the two protrusions 421 can be moved downward, and in this way, the ventilation block 44 can be used to connect with the air intake port 5023 of the liquid injection capsule 502, the sealing block 45 can be used to seal the liquid injection port 5026 of the liquid injection capsule 502, the positioning member 46 can be used to position the upper part of the snap cup 5022 of the liquid injection capsule 502, and the two protrusions 421 can be used to press the snap cup 5022 of the liquid injection capsule 502.

[0035] The static joint 441 is then connected to a vacuum device, and the vacuum device then alternately draws a vacuum and introduces nitrogen gas into the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 via the vacuum piping, the static joint 441, the vacuum hole, and the interior of the ventilation block 44. The lower end of the liquid injection nozzle 5025 of the liquid injection capsule 502 fits into the liquid injection port 5011 of the battery 501, so that the inside of the battery 501 in the liquid injection capsule 502 can be alternately vacuumed and introduced with nitrogen gas via the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 and the liquid injection nozzle 5025, thereby achieving breath-type infiltration of the battery 501 at high temperatures. In this way, the battery 501 is subjected to a high-temperature + positive and negative pressure cyclic static treatment, allowing the electrolyte injected into the battery 501 to quickly and sufficiently infiltrate into the cells of the battery 501, improving manufacturing efficiency.

[0036] A vacuum device is used to alternately evacuate and introduce nitrogen gas into the first inner cavity of snap cup 5022 of liquid injection capsule 502 via vacuum piping, static joint 441, vacuum hole, and ventilation block 44, thereby alternately evacuating and introducing nitrogen gas into the inside of battery 501 in liquid injection capsule 502. Specifically, first, nitrogen gas is introduced into the inside of snap cup 5022 of liquid injection capsule 502 via the inside of static joint 441, vacuum hole, and ventilation block 44 using a vacuum device, thereby introducing nitrogen gas into the inside of battery 501 in liquid injection capsule 502, generating positive pressure inside battery 501, the pressure being 0.3 to 0.5 MPa (megapascals), preferably 0.4 MPa, and the pressure is maintained for 3 to 4 hours, preferably 3.5 hours. Thereafter, a vacuum is drawn from the first inner cavity of snap cup 5022 of liquid injection capsule 502 using a vacuum device through stationary joint 441, vacuum hole, and the inside of ventilation block 44, thereby drawing a vacuum inside battery 501 in liquid injection capsule 502, generating a negative pressure inside battery 501 of -55 to -65 Kpa (kilopascals), preferably -60 Kpa, which is maintained for 0.2 to 1 hour, preferably 0.5 hours. These two steps are then repeated 4 to 6 times, preferably 5 times.

[0037] After the stationary process is completed, the lower end of the first probe 312 and the lower end of the second probe 322 are disconnected from the power source, the stationary joint 441 is disconnected from the vacuum device, and the lifting cylinder 43 is driven to move the second mounting plate 42 downward, thereby moving the ventilation block 44, the sealing block 45, the stationary joint 441, the positioning member 46, and the two protrusions 421 upward to their initial positions, and the ventilation block 44 is separated from the intake port 5023 of the liquid injection capsule 502, and the sealing block 45 is attached to the liquid injection capsule 502. The injection capsule 502 is separated from the injection port 5026 of the capsule 502, the positioning member 46 is separated from the upper positioning groove 5027 of the injection capsule 502, and the two protrusions 421 are separated from the top of the snap cup 5022 of the injection capsule 502.Then, the injection capsule 502 in the stationary cavity 20 and the battery 501 in the injection capsule 502 are transported to the second relay conveying line 90 by a stacker, and then the injection capsule 502 and the battery 501 in the injection capsule 502 are transported to the next process via the second relay conveying line 90.

[0038] In this embodiment, there are four bottom plates 21 and four top plates 22 at the bottom of each cavity 20, and two injection capsules 502 can be placed in each placement area 221. There are two auxiliary current-carrying mechanisms for each bottom plate 21 and top plate 22, so that eight injection capsules 502 can be placed in each cavity 20. There are two positive and negative pressure circulation mechanisms 40 for each cavity 20, eight vent blocks 44 for each mechanism 40, four sealing blocks 45, eight joints 441 for each mechanism 40, eight vacuum holes, two lifting cylinders 43 for each mechanism 40, two slots 411, and two guide columns 47. There are four linear bearings 48, and two slots 411 spaced apart along the longitudinal direction of the first mounting plate 41, so that each static cavity 20 of the present invention can perform high temperature + positive and negative pressure cyclic static treatment on the batteries 501 in eight injection capsules 502 at a time, and there are nine static cavities 20 in each static multi-level warehouse 11, and there are twelve static multi-level warehouses 11 in each static unit 10, so that high temperature + positive and negative pressure cyclic static treatment can be performed on multiple batteries 501 at a time, improving manufacturing efficiency. As can be understood, the number of each component can be set according to actual conditions.

[0039] Referring to FIG. 13, based on the above battery stationary device, the present invention further provides a battery stationary method, which specifically includes the following steps:

[0040] S1: The battery 501 after injection is placed in the injection capsule 502, and then the injection capsule 502 and the battery 501 inside the injection capsule 502 are transferred to the first relay transfer line 80.

[0041] S2: The liquid injection capsule 502 and the battery 501 inside the liquid injection capsule 502 are transported to the stationary unit 10 via the first relay transport line 80.

[0042] S3: The liquid injection capsule 502 on the first relay conveying line 80 and the battery 501 in the liquid injection capsule 502 are transported into the stationary cavity 20 of the stationary unit 10, specifically, to the placement area 221 of the stationary upper plate 22 at the bottom of the stationary cavity 20, and the upper end of the first probe 312 of the auxiliary current-carrying mechanism in the stationary cavity 20 is connected to the positive electrode probe of the liquid injection capsule 502 to achieve electrical connection with the positive electrode probe, and the upper end of the second probe 322 of the auxiliary current-carrying mechanism is connected to the negative electrode probe of the liquid injection capsule 502 to achieve electrical connection with the negative electrode probe.

[0043] S4: Power is applied to the lower end of the first probe 312 and the lower end of the second probe 322 of the auxiliary current-carrying mechanism in the stationary cavity 20, supplying electricity to the heating plate of the liquid injection capsule 502, which then becomes electrically conductive and generates heat, heating the battery 501 inside the liquid injection capsule 502 to a heating temperature of 40 to 50°C, preferably 45°C.

[0044] S5: The positive and negative pressure circulation mechanism 40 in the static cavity 20 is connected to the two air intakes 5023 of the liquid injection capsule 502, the liquid injection port 5026 of the liquid injection capsule 502 is sealed, the positive and negative pressure circulation mechanism 40 is connected to a vacuum device, and the vacuum device alternately draws a vacuum and introduces nitrogen gas into the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 via the positive and negative pressure circulation mechanism 40, thereby alternately drawing a vacuum and introducing nitrogen gas into the inside of the battery 501 inside the liquid injection capsule 502, and realizing respiratory infiltration of the battery 501 at high temperatures. In this way, high temperature + positive and negative pressure circulation static treatment is performed on the battery 501.

[0045] Step S5 includes the following steps.

[0046] S51: The lifting cylinder 43 of the positive and negative pressure circulation mechanism 40 is used to move the ventilation block 44 and the sealing block 45 in a direction approaching the liquid injection capsule 502, i.e., to drive them to move downward, thereby engaging the end of the ventilation block 44 with the air intake port 5023 of the liquid injection capsule 502 and engaging the end of the sealing block 45 with the liquid injection port 5026 of the liquid injection capsule 502, thereby achieving connection with the air intake port 5023 of the liquid injection capsule 502 and sealing of the liquid injection port 5026 of the liquid injection capsule 502.

[0047] S52: The stationary joint 441 of the positive / negative pressure circulation mechanism 40 is connected to the vacuum device.

[0048] S53: Nitrogen gas is introduced into the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 by a vacuum device through the static joint 441 of the positive / negative pressure circulation mechanism 40, the vacuum hole, and the inside of the ventilation block 44, thereby allowing nitrogen gas to be introduced into the inside of the battery 501 in the liquid injection capsule 502, generating positive pressure inside the battery 501, the pressure being 0.3 to 0.5 MPa, preferably 0.4 MPa, and maintained for 3 to 4 hours, preferably 3.5 hours.

[0049] S54: A vacuum is drawn inside the first inner cavity of the snap cup 5022 of the liquid injection capsule 502 using a vacuum device through the static joint 441 of the positive / negative pressure circulation mechanism 40, the vacuum hole, and the inside of the ventilation block 44, thereby drawing a vacuum inside the battery 501 inside the liquid injection capsule 502, generating a negative pressure inside the battery 501, the pressure being -55 to -65 Kpa, preferably -60 Kpa, and maintaining the pressure for 0.2 to 1 hour, preferably 0.5 hours.

[0050] S55: Steps S53 and S54 are repeated four to six times, preferably five times.

[0051] S6: The lower end of the first probe 312 and the lower end of the second probe 322 of the auxiliary current-carrying mechanism are disconnected from the power supply, the static joint 441 of the positive / negative pressure circulation mechanism 40 is disconnected from the vacuum device, the lifting cylinder 43 of the positive / negative pressure circulation mechanism 40 is driven to move the ventilation block 44 and the sealing block 45 upward to their initial positions, the ventilation block 44 is separated from the air intake 5023 of the liquid injection capsule 502, and the sealing block 45 is separated from the liquid injection port 5026 of the liquid injection capsule 502, and then the liquid injection capsule 502 in the placement area 221 in the static cavity 20 and the battery 501 in the liquid injection capsule 502 are transported to the second relay conveying line 90 by the stacker.

[0052] S7: The liquid injection capsule 502 and the battery 501 inside the liquid injection capsule 502 are transported to the next process via the second relay transport line 90.

[0053] According to the present invention, first, the battery 501 after injection is placed in the injection capsule 502, then the injection capsule 502 and the battery 501 in the injection capsule 502 are transferred to the first relay conveying line 80, then the injection capsule 502 and the battery 501 in the injection capsule 502 are conveyed to the stationary unit 10 via the first relay conveying line 80, then the injection capsule 502 and the battery 501 in the injection capsule 502 on the first relay conveying line 80 are carried into the stationary cavity 20 of the stationary unit 10, and the auxiliary current-carrying mechanism in the stationary cavity 20 is electrically connected to the positive electrode probe and the negative electrode probe of the injection capsule 502, then power is applied to the auxiliary current-carrying mechanism in the stationary cavity 20 to supply power to the heating plate of the injection capsule 502, and as a result, the heat generated by the heating plate causes the battery 501 in the injection capsule 502 to heat up. The battery 501 can be heated, and then the positive and negative pressure circulation mechanism 40 in the stationary cavity 20 is connected to the air intake 5023 of the liquid injection capsule 502, and the liquid injection port 5026 of the liquid injection capsule 502 is sealed. Then the positive and negative pressure circulation mechanism 40 is connected to a vacuum device. In this way, the vacuum device can use the positive and negative pressure circulation mechanism 40 to alternately evacuate the inside of the liquid injection capsule 502 and introduce nitrogen gas, thereby alternately evacuating the inside of the battery 501 in the liquid injection capsule 502 and introducing nitrogen gas. In this way, breath-type infiltration of the battery 501 at high temperatures can be achieved, and the electrolyte injected into the battery 501 can quickly and sufficiently infiltrate into the cells of the battery 501, improving manufacturing efficiency.

[0054] Although the preferred embodiments of the present invention have been described above in detail, the present invention is not limited to the above embodiments. Those skilled in the art may make various equivalent modifications and substitutions without violating the spirit of the present invention, and all of these equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A battery standing method, comprising: Step S1: placing the battery after injection into an injection capsule, and then transporting the injection capsule and the battery inside the injection capsule to a first relay conveyance line; Step S2: transporting the liquid injection capsule and the battery in the liquid injection capsule to a stationary unit via a first relay transport line; Step S3: transporting the liquid injection capsule and the battery in the liquid injection capsule on the first relay transport line into the stationary cavity of the stationary unit, and electrically connecting the auxiliary current-carrying mechanism in the stationary cavity to the positive electrode probe and the negative electrode probe of the liquid injection capsule; Step S4: powering on the auxiliary current-carrying mechanism in the stationary cavity to supply power to the heating plate of the liquid injection capsule, causing the heating plate to generate heat and heat the battery in the liquid injection capsule; Step S5 of connecting the positive and negative pressure circulation mechanism in the stationary cavity to the air intake port of the liquid injection capsule, sealing the liquid injection port of the liquid injection capsule, communicating the positive and negative pressure circulation mechanism with a vacuum device, and alternately evacuating the inside of the liquid injection capsule via the positive and negative pressure circulation mechanism using the vacuum device to evacuate and introduce nitrogen gas into the inside of the liquid injection capsule, thereby realizing alternately evacuating and introducing nitrogen gas into the inside of the battery in the liquid injection capsule; step S6 of disconnecting the auxiliary current-carrying mechanism from the power source, disconnecting the positive and negative pressure circulation mechanism from the vacuum device, and separating the positive and negative pressure circulation mechanism from the intake port of the liquid injection capsule and the liquid injection port of the liquid injection capsule, and then transporting the liquid injection capsule in the stationary cavity and the battery in the liquid injection capsule to a second relay transport line; and step S7 of transporting the injection capsule and the battery in the injection capsule to the next process via a second relay transport line.

2. 2. The battery setting method according to claim 1, wherein in step S3, the liquid injection capsule and the battery inside the liquid injection capsule on the first relay conveying line are transported to a placement area at the bottom of the setting cavity.

3. 3. The battery setting method according to claim 2, wherein in step S3, an upper end of a first probe of the auxiliary current-carrying mechanism is electrically connected to a positive electrode probe of the liquid injection capsule, and an upper end of a second probe of the auxiliary current-carrying mechanism is electrically connected to a negative electrode probe of the liquid injection capsule; in step S4, power is applied to the lower ends of the first probe and the second probe of the auxiliary current-carrying mechanism; and in step S6, the lower ends of the first probe and the second probe of the auxiliary current-carrying mechanism are disconnected from the power source.

4. 2. The battery setting method according to claim 1, wherein in step S4, the temperature at which the heating plate heats the battery in the electrolyte injection capsule is 40 to 50°C.

5. Step S5 Step S51: by driving the lifting cylinder of the positive / negative pressure circulation mechanism to move the ventilation block and the sealing block in a direction approaching the liquid injection capsule, the end of the ventilation block is fitted with the air intake port of the liquid injection capsule, the end of the sealing block is fitted with the liquid injection port of the liquid injection capsule, thereby realizing connection with the air intake port of the liquid injection capsule and sealing the liquid injection port of the liquid injection capsule; Step S52: connecting the stationary joint of the positive / negative pressure circulation mechanism to a vacuum device; Step S53: introducing nitrogen gas into the liquid injection capsule through the stationary joint and vent block of the positive and negative pressure circulation mechanism using a vacuum device, thereby introducing nitrogen gas into the battery inside the liquid injection capsule, generating positive pressure inside the battery, the pressure being 0.3 to 0.5 MPa, and maintaining the pressure for 3 to 4 hours; a step S54 in which the inside of the liquid injection capsule is evacuated by a vacuum device via the stationary joint and the ventilation block of the positive and negative pressure circulation mechanism, thereby evacuating the inside of the battery in the liquid injection capsule, generating negative pressure inside the battery, and maintaining the pressure at -55 to -65 Kpa for 0.2 to 1 hour; and Step S55, wherein Steps S53 and S54 are repeated four to six times.

6. A battery storage device comprising: a storage unit, a first relay conveying line, and a second relay conveying line; the storage unit is located between the first relay conveying line and the second relay conveying line; the storage unit comprises a storage multi-story warehouse; the storage multi-story warehouse comprises a storage cavity; the storage cavity is used to place an injection capsule and a battery in the injection capsule; and the storage cavity is provided with an auxiliary current-carrying mechanism and a positive / negative pressure circulation mechanism.

7. The battery placement device according to claim 6, wherein a bottom placement plate is provided at the bottom of the placement cavity, a top placement plate is provided above the bottom placement plate, and a placement area is provided above the top placement plate.

8. the auxiliary current-carrying mechanism includes a first probe assembly and a second probe assembly, the first probe assembly including a first probe sleeve and a first probe installed through the first probe sleeve, a first mounting groove formed on the upper part of the bottom plate, a first hole formed on the bottom of the first mounting groove, a first bypass hole corresponding to the first mounting groove formed on the upper part of the top plate, the first probe sleeve installed in the first mounting groove, an upper end of the first probe passing through the first bypass hole and positioned in the placement area, the upper end of the first probe being used for electrically connecting to a positive electrode probe of the injection capsule, a lower end of the first probe passing through the first hole and positioned in a space below the bottom of the placement cavity, and the lower end of the first probe being electrically connected to a positive electrode of a power source.

8. The battery stationary device according to claim 7, wherein the second probe assembly includes a second probe sleeve and a second probe installed through the second probe sleeve, a second mounting groove is formed on the upper part of the bottom plate, a second hole is formed on the bottom of the second mounting groove, a second bypass hole is formed on the upper part of the top plate corresponding to the second mounting groove, the second probe sleeve is installed in the second mounting groove, an upper end of the second probe passes through the second bypass hole and is located in the placement area, the upper end of the second probe is used to electrically connect to a negative electrode probe of a liquid injection capsule, and a lower end of the second probe passes through the second hole and is located in a space below the bottom of the stationary cavity, the lower end of the second probe is used to electrically connect to a negative electrode of a power source.

9. The battery placement device according to claim 8, characterized in that a positioning pin is provided on the top of the placement bottom plate, a positioning hole corresponding to the positioning pin is provided on the bottom of the placement area, and the end of the positioning pin passes through the positioning hole and is positioned within the placement area.

10. The positive and negative pressure circulation mechanism includes a first mounting plate, a second mounting plate, a lifting cylinder, a vent block, and a sealing block. An upper portion of the stationary cavity has an upper space communicating with the inside of the stationary cavity. The first mounting plate is installed in the upper space. The second mounting plate is located below the first mounting plate and is located within the stationary cavity. The lifting cylinder is installed on the upper portion of the first mounting plate. An end of the output shaft of the lifting cylinder passes through a through-hole in the first mounting plate and is connected to the upper portion of the second mounting plate. The lifting cylinder lifts the second mounting plate.

7. The battery stationary device according to claim 6, wherein the second mounting plate is provided with a vent block and a sealing block, the vent block and the sealing block are both installed at the bottom end of the second mounting plate, the end of the vent block is adapted to be fitted with the air inlet of the injection capsule, the end of the sealing block is adapted to be fitted with the injection port of the injection capsule, and a static joint corresponding to the vent block is provided at the top of the second mounting plate, the static joint is connected to the inside of the vent block, and the static joint is adapted to be connected to a vacuum device.

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