Soft package battery jig

Abstract

The utility model belongs to the technical field of battery manufacturing equipment, and particularly relates to a soft package battery jig which comprises a positive electrode assembly, a negative electrode assembly, a liquid injection valve, a jig seat and a clamping plate, and the jig seat is provided with a liquid storage cavity and a liquid outlet connector communicated with the liquid storage cavity; the positive electrode assembly, the negative electrode assembly and the liquid injection valve are all mounted on the jig seat, and the liquid injection valve is communicated with the liquid storage cavity; the clamping plate is rotatably mounted on the jig seat and is used for clamping the soft package battery on the jig seat, the positive electrode assembly and the negative electrode assembly are respectively used for being electrically connected with a positive electrode lug and a negative electrode lug of the soft package battery, and the liquid outlet interface is used for being communicated with a liquid injection hole of the soft package battery. According to the soft package battery jig, the steps of liquid injection, formation and the like of the soft package battery can be realized, the applicability and the universality of the soft package battery jig are improved, and the soft package battery jig is simple in structure, low in manufacturing cost and simple and convenient to use and operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of battery manufacturing equipment, especially relates to a soft package battery fixture. BACKGROUND

[0002] Lithium ion batteries are widely used in various electronic products, vehicles and other equipment, and are divided into hard shell lithium ion batteries and soft shell lithium ion batteries according to packaging materials; wherein, soft package lithium ion battery has the advantages of good safety performance, light weight and large capacity.

[0003] After the battery body is installed in the flexible shell, the soft package lithium ion battery still needs to be handled, such as liquid injection, storage and formation. In order to ensure the stability of the soft package lithium ion battery, the soft package battery is usually installed in the battery fixture. The battery fixture in the prior art has the technical problems of complex structure, high support cost and inconvenient operation. SUMMARY

[0004] The utility model solves the technical problems of complex structure, high support cost and inconvenient operation of the battery fixture in the prior art, and provides a soft package battery fixture.

[0005] To solve the above problems, the utility model provides a kind of soft package battery fixture, including positive pole assembly, negative pole assembly, liquid injection valve, fixture seat and clamping plate, the fixture seat is equipped with liquid storage cavity and the liquid outlet interface that communicates the liquid storage cavity;

[0006] The positive pole assembly, the negative pole assembly and the liquid injection valve are all installed on the fixture seat, and the liquid injection valve communicates the liquid storage cavity;

[0007] The clamping plate is rotatably installed on the fixture seat, and is used to clamp the soft package battery on the fixture seat, the positive pole assembly and the negative pole assembly are respectively used to electrically connect the positive pole lug and the negative pole lug of soft package battery, and the liquid outlet interface is used to communicate the liquid injection hole of soft package battery.

[0008] Optionally, the soft package battery fixture further includes a locking piece installed on the fixture seat, and the clamping plate is provided with a locking hook adapted to the locking piece;

[0009] When the locking piece and the locking hook are locked with each other, the clamping plate is used to lock the soft package battery on the fixture seat;

[0010] When the locking hook and the locking piece are unlocked, the clamping plate is used to unlock the soft package battery on the fixture seat.

[0011] Optionally, the locking piece includes a torsional spring and a lock catch provided with a lock hole, the torsional spring is installed on the fixture seat and connected to the lock catch;The lock hole is used to lock or unlock the locking hook.

[0012] Optionally, the positive electrode assembly comprises a positive electrode block, and a positive electrode connector and a positive electrode socket group which are both mounted on the jig seat, the positive electrode socket group comprises a plurality of positive electrode holes which are spaced apart, and the positive electrode block is provided with positive electrode pins which are inserted into the positive electrode holes; the positive electrode seat is electrically connected with the positive electrode block through the positive electrode pins which are inserted into the positive electrode holes; and the positive electrode block is used for electrically connecting the positive electrode tabs of the soft package battery.

[0013] Optionally, the negative electrode assembly comprises a negative electrode block, and a negative electrode connector and a negative electrode socket group which are both mounted on the jig seat, the negative electrode socket group comprises a plurality of negative electrode holes which are spaced apart, and the negative electrode block is provided with negative electrode pins which are inserted into the negative electrode holes; the negative electrode seat is electrically connected with the negative electrode block through the negative electrode pins which are inserted into the negative electrode holes; and the negative electrode block is used for electrically connecting the negative electrode tabs of the soft package battery.

[0014] Optionally, the jig seat comprises a liquid storage seat and a support seat which is connected with the liquid storage seat, the liquid storage cavity and the liquid outlet interface are both arranged on the liquid storage seat, and the liquid injection valve, the positive electrode assembly and the negative electrode assembly are all mounted on the support seat.

[0015] The clamping plate comprises a horizontal plate and a vertical plate which is connected with the horizontal plate, and the horizontal plate is rotationally mounted on the support seat.

[0016] The vertical plate is used for clamping the soft package battery on the liquid storage seat, and makes the liquid injection hole of the soft package battery butt joint with the liquid outlet interface.

[0017] The horizontal plate is used for clamping the positive electrode tab and the negative electrode tab of the soft package battery on the support seat, and makes the positive electrode tab and the negative electrode tab of the soft package battery respectively butt joint with the positive electrode assembly and the negative electrode assembly.

[0018] Optionally, a containing space is arranged between the liquid storage seat and the support seat, and the containing space is used for containing the battery body of the soft package battery; and the horizontal plate is used for clamping the side bag of the soft package battery on the liquid storage seat.

[0019] The positive electrode tab and the negative electrode tab of the soft package battery are both arranged on the battery body, and the liquid injection hole of the soft package battery is arranged on the side bag.

[0020] Optionally, a reserved interface which communicates with the liquid storage cavity is further arranged on the jig seat.

[0021] Optionally, the liquid injection valve comprises a sealing ring, an elastic member, a valve seat which is provided with a through hole, and a valve core which is provided with a valve hole, a side hole which communicates with the valve hole is arranged on the side wall of the valve core, the sealing ring and the elastic member are both sleeved on the valve core, the valve core is slidably mounted in the through hole, and the opposite two ends of the elastic member are respectively connected with the valve seat and the valve core.

[0022] The tool seat is further provided with a mounting hole communicating with the liquid storage cavity, and the valve seat is mounted in the mounting hole;

[0023] When the valve core slides in the through hole to abut the sealing ring against the valve seat, the side hole does not communicate with the liquid storage cavity;

[0024] When the valve core slides in the through hole to move the sealing ring away from the valve seat, the valve hole communicates with the liquid storage cavity through the side hole.

[0025] In the utility model, the soft package battery is placed on the tool seat, and then the clamping plate is covered on the tool seat, at the moment, the clamping plate can clamp the soft package battery on the tool seat, and the liquid injection hole of the soft package battery communicates with the liquid outlet interface, and the positive pole lug and the negative pole lug of the electrically connected soft package battery are respectively electrically connected with the positive pole assembly and the negative pole assembly. The electrolyte in the liquid storage cavity can be injected into the soft package battery through the liquid outlet interface, and after the positive pole assembly and the negative pole assembly are electrified, the soft package battery can be charged and discharged through the soft package battery tool, so that the soft package battery tool can realize the liquid injection, formation and other steps of the soft package battery, and the applicability and universality of the soft package battery tool are improved. And the soft package battery tool has simple structure, low manufacturing cost and simple operation. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model is further explained in connection with the drawings and examples.

[0027] Figure 1 The structure schematic view of the soft package battery tool in the pressing state is provided for an embodiment of the utility model;

[0028] Figure 2 The structure schematic view of the soft package battery tool in the opening state is provided for an embodiment of the utility model;

[0029] Figure 3 The sectional view of the soft package battery tool is provided for an embodiment of the utility model;

[0030] Figure 4 The partial explosion structure schematic view of the soft package battery tool is provided for an embodiment of the utility model;

[0031] Figure 5 The explosion structure schematic view of the liquid injection valve of the soft package battery tool is provided for an embodiment of the utility model;

[0032] Figure 6 The structure schematic view of the soft package battery is provided for an embodiment of the utility model.

[0033] The reference signs in the specification are as follows:

[0034] 1, positive assembly; 11, positive block; 111, positive pin; 12, positive joint; 13, positive jack set; 2, negative assembly; 21, negative block; 211, negative pin; 22, negative joint; 23, negative jack set; 3, liquid injection valve; 31, sealing ring; 32, valve seat; 321, through hole; 33, valve core; 331, valve hole; 332, side hole; 4, jig seat; 41, liquid storage cavity; 42, liquid outlet interface; 43, liquid storage seat; 44, support seat; 45, containing space; 46, reserved interface; 5, clamping plate; 51, lock hook; 52, horizontal plate; 53, vertical plate; 6, locking piece; 61, torsional spring; 62, lock catch; 100, soft package battery; 101, liquid injection hole; 102, positive lug; 103, negative lug; 104, battery body; 105, side pocket. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0036] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, 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 limiting the utility model.

[0037] As shown in Figures 1 to 3 The utility model embodiment provides a kind of soft package battery jig, including positive assembly 1, negative assembly 2, liquid injection valve 3, jig seat 4 and clamping plate 5, the liquid storage cavity 41 and the liquid outlet interface 42 that communicate the liquid storage cavity 41 are equipped on the jig seat 4;

[0038] The positive assembly 1, the negative assembly 2 and the liquid injection valve 3 are all installed on the jig seat 4, and the liquid injection valve 3 communicates the liquid storage cavity 41;It can be understood that when the liquid injection valve 3 is not connected with external liquid injection device, the liquid injection valve 3 is in the plugging state;When the liquid injection valve 3 is connected with external liquid injection device, the liquid injection valve 3 is in the on state, at this time, external liquid injection device can inject electrolyte into the liquid storage cavity 41 by liquid injection valve 3.

[0039] The clamping plate 5 is rotatably installed on the jig seat 4 and is used for clamping the soft package battery 100 on the jig seat 4. The positive electrode assembly 1 and the negative electrode assembly 2 are respectively used for electrically connecting the positive electrode lug 102 and the negative electrode lug 103 of the soft package battery 100. The liquid outlet interface 42 is used for connecting the liquid injection hole 101 of the soft package battery 100. It can be understood that the clamping plate 5 can be rotatably installed on the jig seat 4 through a rotating shaft, and further, a torsional spring is sleeved on the rotating shaft. The clamping plate 5 can be covered on the jig seat 4 through a locking piece and a buckle piece.

[0040] Specifically, the soft package battery 100 is placed on the jig seat 4, and then the clamping plate 5 is covered on the jig seat 4. At this time, the clamping plate 5 can clamp the soft package battery 100 on the jig seat 4, and the liquid injection hole 101 of the soft package battery 100 is connected to the liquid outlet interface 42. The positive electrode lug 102 and the negative electrode lug 103 of the soft package battery 100 are respectively electrically connected to the positive electrode assembly 1 and the negative electrode assembly 2. The electrolyte in the liquid storage cavity 41 can be injected into the soft package battery 100 through the liquid outlet interface 42. After the positive electrode assembly 1 and the negative electrode assembly 2 are electrified, the soft package battery 100 can be charged and discharged through the soft package battery jig, so that the soft package battery jig can realize the steps of liquid injection and formation of the soft package battery 100, thereby improving the applicability and universality of the soft package battery jig. Moreover, the soft package battery jig has simple structure, low manufacturing cost and simple operation.

[0041] In an embodiment, as shown in Figure 1 and Figure 2 The soft package battery jig further comprises a locking piece 6 installed on the jig seat 4, and the clamping plate 5 is provided with a locking hook 51 matched with the locking piece 6.

[0042] As shown in Figure 1 When the locking piece 6 and the locking hook 51 are locked with each other, the clamping plate 5 is used for pressing the soft package battery 100 on the jig seat 4. It can be understood that the clamping plate 5 is rotated until the locking hook 51 is locked with the locking piece 6, so that the clamping plate 5 can lock the soft package battery 100 on the jig seat 4. The liquid injection hole 101 of the soft package battery 100 is connected to the liquid outlet interface 42, and the positive electrode lug 102 and the negative electrode lug 103 of the soft package battery 100 are respectively electrically connected to the positive electrode assembly 1 and the negative electrode assembly 2.

[0043] As shown in Figure 2As shown, the locking hook 51 is unlocked from the locking member 6, the clamping plate 5 is used to unlock the soft package battery 100 on the jig seat 4. It can be understood that the locking member 6 is actuated, the locking hook 51 will be separated from the locking hook 51, and the clamping plate 5 will be opened from the jig seat 4 under the action of the elastic force, so that the soft package battery 100 can be placed on the jig seat 4, or the soft package battery 100 can be taken off the jig seat 4. In this embodiment, the opening and closing operation of the soft package battery jig is simple.

[0044] In an embodiment, as shown in Figure 2 The locking member 6 includes a torsion spring 61 and a lock catch 62 provided with a locking hole, the torsion spring 61 is installed on the jig seat 4 and connected to the lock catch 62; the locking hole is used to lock or unlock the locking hook 51. It can be understood that the elastic force of the torsion spring 61 makes the lock catch 62 located at the position of locking the locking hook 51. Actuate the lock catch 62, the locking hole of the lock catch 62 will be separated from the locking hook 51, so that the clamping plate 5 can be opened from the jig seat 4. In this embodiment, the structure of the locking member 6 is simple and the manufacturing cost is low.

[0045] In an embodiment, as shown in Figures 2 to 4 The positive electrode assembly 1 includes a positive electrode block 11, and a positive electrode connector 12 and a positive electrode jack group 13 both installed on the jig seat 4, the positive electrode jack group 13 includes a plurality of positive electrode holes spaced apart, the positive electrode block 11 is provided with a positive electrode pin 111 inserted into the positive electrode hole; the positive electrode block 11 is electrically connected to the positive electrode block 11 through the positive electrode pin 111 inserted into the positive electrode hole; the positive electrode block 11 is used to electrically connect the positive electrode lug 102 of the soft package battery 100. It can be understood that all the positive electrode holes are arranged in a straight line direction on the jig seat 4, and the positive electrode connector 12 is electrically connected to all the positive electrode holes.

[0046] In this embodiment, the positive electrode pin 111 of the positive electrode block 11 is inserted into different positive electrode holes, so that the positive electrode block 11 is installed at different positions of the jig seat 4, so that the positive electrode block 11 can be connected with the positive electrode lug 102 of the soft package battery 100 of different specifications, and then the soft package battery jig can clamp the soft package battery 100 of different specifications, further improving the applicability and versatility of the soft package battery jig.

[0047] In an embodiment, as shown in Figures 2 to 4As shown, the negative assembly 2 comprises a negative block 21, and a negative connector 22 and a negative socket group 23 which are both mounted on the jig seat 4, the negative socket group 23 comprises a plurality of negative sockets which are spaced apart, the negative block 21 is provided with negative pins 211 which are inserted into the negative sockets; the negative block 21 is electrically connected with the negative block 21 through the negative pins 211 which are inserted into the negative sockets; the negative block 21 is used for electrically connecting the negative tab 103 of the soft package battery 100. It can be understood that all the negative sockets are spaced apart in a straight line direction on the jig seat 4, and the negative connector 22 is electrically connected with all the negative sockets.

[0048] In this embodiment, the negative pins 211 of the negative block 21 are inserted into different negative sockets, so that the negative block 21 is mounted at different positions of the jig seat 4, so that the negative block 21 can be connected with the negative tab 103 of the soft package battery 100 of different specifications, and further the soft package battery jig can clamp the soft package battery 100 of different specifications, and further improve the applicability and versatility of the soft package battery jig.

[0049] In an embodiment, as shown in Figure 2 As shown, the jig seat 4 is provided with positive and negative sliding holes which are spaced apart, the positive socket group 13 is arranged in the positive sliding hole, and the negative socket group 23 is arranged in the negative sliding hole.

[0050] In an embodiment, as shown in Figures 1 to 3 As shown, the jig seat 4 comprises a liquid storage seat 43 and a support seat 44 connected with the liquid storage seat 43, the liquid storage cavity 41 and the liquid outlet interface 42 are both arranged on the liquid storage seat 43, and the liquid injection valve 3, the positive assembly 1 and the negative assembly 2 are all mounted on the support seat 44; as preferred, the liquid storage seat 43 and the support seat 44 are integrally formed.

[0051] The clamping plate 5 comprises a horizontal plate 52 and a vertical plate 53 connected with the horizontal plate 52, and the horizontal plate 52 is rotatably mounted on the support seat 44; as preferred, the horizontal plate 52 and the vertical plate 53 are integrally formed. It can be understood that the vertical plate 53 can be clamped on the liquid storage seat 43, and the horizontal plate 52 can be clamped on the support seat 44; further, the locking piece 6 is mounted on the liquid storage seat 43, and the locking hook 51 is arranged on the vertical plate 53.

[0052] The vertical plate 53 is used to clamp the soft package battery 100 on the liquid storage seat 43, and make the liquid injection hole 101 of the soft package battery 100 butt against the liquid outlet interface 42. It can be understood that after the locking hook 51 is locked with the locking piece 6, the pressing plate clamps the side edge of the soft package battery 100 on the liquid storage seat 43, and the liquid injection hole 101 of the soft package battery 100 communicates with the liquid outlet interface 42.

[0053] The horizontal plate 52 is used to clamp the positive and negative tabs 102 and 103 of the soft package battery 100 on the support seat 44, and make the positive and negative tabs 102 and 103 of the soft package battery 100 respectively adhere to the positive and negative assemblies 1 and 2. It can be understood that after the locking hook 51 is locked with the locking piece 6, the horizontal plate 52 can clamp the positive and negative tabs 102 and 103 of the soft package battery 100 on the support seat 44, and the positive and negative tabs 102 and 103 of the soft package battery 100 respectively adhere to the positive and negative blocks 11 and 21. In this embodiment, the soft package battery 100 can be stably clamped between the clamping plate 5 and the jig seat 4.

[0054] In an embodiment, as shown in Figure 1 , Figure 4 and Figure 6 , the liquid storage seat 43 and the support seat 44 are provided with a containing space 45, which is used to contain the battery body 104 of the soft package battery 100; the horizontal plate 52 is used to clamp the side pocket 105 of the soft package battery 100 on the liquid storage seat 43; the positive and negative tabs 102 and 103 of the soft package battery 100 are arranged on the battery body 104, and the liquid injection hole 101 of the soft package battery 100 is arranged on the side pocket 105. It can be understood that the positive and negative tabs 102 and 103 are arranged at the front end of the battery body 104, and the side pocket 105 is arranged at the side of the battery body 104. In this embodiment, the battery body 104 is located in the containing space 45, the side pocket 105 is clamped between the vertical plate 53 and the liquid storage seat 43, and the positive and negative tabs 102 and 103 are clamped between the horizontal plate 52 and the support seat 44; the structure of the soft package battery jig is compact and occupies small space.

[0055] In an embodiment, as shown in Figure 2 , the jig seat 4 is further provided with a reserved interface 46 communicating with the liquid storage cavity 41. It can be understood that the reserved interface 46 is arranged on the liquid storage seat 43; when the electrolyte is injected into the liquid storage cavity 41 through the liquid injection valve 3, the gas in the liquid storage cavity 41 can be discharged through the reserved interface 46, thereby ensuring the smoothness of injecting the electrolyte into the liquid storage cavity 41.

[0056] In an embodiment, as shown in Figure 3 andFigure 5 As shown, the liquid injection valve 3 comprises a sealing ring 31, an elastic member (not shown in the figure), a valve seat 32 provided with a through hole 321, and a valve core 33 provided with a valve hole 331, a side hole 332 communicating with the valve hole 331 is arranged on the side wall of the valve core 33, the sealing ring 31 and the elastic member are sleeved on the valve core 33, the valve core 33 is slidingly installed in the through hole 321, and opposite ends of the elastic member are connected with the valve seat 32 and the valve core 33 respectively; it can be understood that the elastic member includes but is not limited to a spring and the like, the elastic member is located in the through hole 321, the sealing ring 31 is located outside the through hole 321, and the outer diameter of the sealing ring 31 is greater than the inner diameter of the through hole 321.

[0057] The jig seat 4 is further provided with a mounting hole communicating with the liquid storage cavity 41, and the valve seat 32 is mounted in the mounting hole.

[0058] When the valve core 33 slides in the through hole 321 to abut the sealing ring 31 against the valve seat 32, the side hole 332 does not communicate with the liquid storage cavity 41; specifically, the rebound force of the elastic member drives the valve core 33 to move towards the outside until the sealing ring 31 abuts against the bottom of the valve seat 32, the side hole 332 is located inside the through hole 321, and since the sealing ring 31 blocks the through hole 321, the side hole 332 does not communicate with the liquid storage cavity 41, that is, the liquid storage cavity 41 does not communicate with the external environment.

[0059] When the valve core 33 slides in the through hole 321 to move the sealing ring 31 away from the valve seat 32, the valve hole 331 communicates with the liquid storage cavity 41 through the side hole 332. Specifically, when the external connector is connected with the liquid injection valve 3, the external connector drives the valve core 33 to move in the through hole 321, and the sealing ring 31 moves away from the valve seat 32, at this time, the valve hole 331 communicates with the liquid storage cavity 41 through the side hole 332, so that the external liquid injection device can input the electrolyte into the liquid storage cavity 41 through the liquid injection valve 3.

[0060] In the embodiment, the liquid injection valve 3 has simple structure and low manufacturing cost.

[0061] Further, the soft package battery jig provided in the embodiment of the utility model reduces the process complexity between battery self-baking, liquid injection, storage and formation, saves the auxiliary mechanism and transfer time between processes, and the design of the formed electrode (positive electrode assembly and negative electrode assembly), the liquid storage cavity 41 and the liquid injection valve 3 on the soft package battery jig enables all the above processes to be completed without taking the soft package battery out of the jig, so that the equipment efficiency is improved, and the cost of the plant and equipment is reduced.

[0062] The above are only embodiments of the soft package battery jig of the utility model, and are not used to limit the utility model, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A soft package battery jig, characterized by, The soft package battery jig comprises a positive electrode assembly, a negative electrode assembly, a liquid injection valve, a jig seat and a clamping plate. The positive electrode assembly, the negative electrode assembly and the liquid injection valve are all mounted on the jig seat, and the liquid injection valve is communicated with the liquid storage cavity. The clamping plate is rotatably mounted on the jig seat and is used for clamping the soft package battery on the jig seat.

2. The soft-pack battery jig according to claim 1, wherein The positive electrode assembly and the negative electrode assembly are respectively used for electrically connecting the positive electrode tab and the negative electrode tab of the soft package battery. The liquid injection hole of the soft package battery is communicated with the liquid outlet interface. The soft package battery jig further comprises a locking piece mounted on the jig seat, and the clamping plate is provided with a locking hook matched with the locking piece.

3. The soft-pack battery jig according to claim 2, wherein When the locking piece and the locking hook are locked with each other, the clamping plate is used for pressing the soft package battery on the jig seat.

4. The soft-pack battery jig according to claim 1, wherein When the locking hook is unlocked from the locking piece, the clamping plate is used for unlocking the soft package battery on the jig seat.

5. The soft-pack battery jig according to claim 1, wherein The locking piece comprises a torsion spring and a lock catch provided with a locking hole.

6. The soft-pack battery jig of claim 1, wherein, The torsion spring is mounted on the jig seat and is connected with the lock catch. The locking hole is used for locking or unlocking the locking hook. The positive electrode assembly comprises a positive electrode block, a positive electrode connector and a positive electrode jack group which are all mounted on the jig seat. The positive electrode block is provided with a positive electrode pin inserted into the positive electrode hole.

7. The soft-pack battery jig according to claim 6, wherein The positive electrode block is electrically connected with the positive electrode block through the positive electrode pin inserted into the positive electrode hole. The positive electrode block is used for electrically connecting the positive electrode tab of the soft package battery.

8. The soft-pack battery jig of claim 1, wherein, The negative electrode assembly comprises a negative electrode block, a negative electrode connector and a negative electrode jack group which are all mounted on the jig seat. The negative electrode block is provided with a negative electrode pin inserted into the negative electrode hole. The negative electrode block is electrically connected with the negative electrode block through the negative electrode pin inserted into the negative electrode hole. The negative electrode block is used for electrically connecting the negative electrode tab of the soft package battery. The jig seat comprises a liquid storage seat and a support seat connected with the liquid storage seat. The liquid storage cavity and the liquid outlet interface are both arranged on the liquid storage seat. The liquid injection valve, the positive electrode assembly and the negative electrode assembly are all mounted on the support seat. The clamping plate comprises a horizontal plate and a vertical plate connected with the horizontal plate. The horizontal plate is rotatably mounted on the support seat. The vertical plate is used for clamping the soft package battery on the liquid storage seat and makes the liquid injection hole of the soft package battery butt joint with the liquid outlet interface. The horizontal plate is used for clamping the positive electrode tab and the negative electrode tab of the soft package battery on the support seat and makes the positive electrode tab and the negative electrode tab of the soft package battery respectively abut against the positive electrode assembly and the negative electrode assembly. The liquid storage seat and the support seat are provided with an accommodating space for accommodating the battery body of the soft package battery. The horizontal plate is used for clamping the side bag of the soft package battery on the liquid storage seat. The positive electrode tab and the negative electrode tab of the soft package battery are both arranged on the battery body, and the liquid injection hole of the soft package battery is arranged on the side bag. The jig seat is further provided with a reserved interface communicated with the liquid storage cavity.

9. The soft-pack battery jig of claim 1, wherein, The liquid injection valve comprises a sealing ring, an elastic member, a valve seat provided with a through hole, and a valve core provided with a valve hole, a side hole communicating with the valve hole is arranged on the side wall of the valve core, the sealing ring and the elastic member are sleeved on the valve core, the valve core is slidingly installed in the through hole, and opposite ends of the elastic member are connected with the valve seat and the valve core respectively; The jig seat is further provided with a mounting hole communicating with the liquid storage cavity, and the valve seat is mounted in the mounting hole; When the valve core slides in the through hole to abut the sealing ring against the valve seat, the side hole does not communicate with the liquid storage cavity; When the valve core slides in the through hole to move the sealing ring away from the valve seat, the valve hole communicates with the liquid storage cavity through the side hole.

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