CN217468555U

CN217468555U - Soft-package battery pressurization forming clamp with lugs at two sides

Info

Publication number: CN217468555U
Application number: CN202221020458.XU
Authority: CN
Inventors: 代德明; 王浩; 周雷军; 王万胜
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-20
Anticipated expiration: 2032-04-29

Abstract

The utility model provides a both sides go out utmost point ear laminate polymer battery pressurization and become anchor clamps, it includes first splint, the second splint, first pressfitting piece and second pressfitting piece, first pressfitting piece level sets up between first splint and laminate polymer battery, second pressfitting piece level sets up between second splint and laminate polymer battery, the both ends of first pressfitting piece and second pressfitting piece are respectively just to laminate polymer battery both sides utmost point ear region, all be provided with pressure device between the both ends of first pressfitting piece and second pressfitting piece, pressure device is used for making simultaneously first pressfitting piece and second pressfitting piece be close to utmost point ear region along the crooked and form the support with utmost point ear position laminating of utmost point ear orientation. The utility model discloses a soft packet of lithium cell's both sides face is even thickness inconsistent position also can receive the extrusion force even relatively even, and the gas gathering that soft packet of lithium cell produced when preventing the high temperature ization is at its thinner position, has avoided soft packet of lithium cell to appear the problem of defects such as black spot, appearance lithium easily.

Description

Soft-package battery pressurization forming clamp with lugs at two sides

Technical Field

The utility model relates to a lithium battery manufacturing technical field especially relates to a both sides go out utmost point ear laminate polymer battery pressurization and become anchor clamps.

Background

Generally, a lithium ion battery is subjected to a subsequent pre-charging formation process after a liquid injection packaging and infiltrating process, and is different from other packaging type batteries, and a flat clamp is required to apply pressure to a soft package battery along the thickness direction of a battery cell. The battery cell is uniformly stressed in the charging and discharging processes, the pole piece and the diaphragm in the battery cell are kept in close fit, and the gas generated in the pre-charging formation process is extruded to the side airbag; therefore, the sufficiency and uniformity of lithium desorption of the electrode plate are ensured, a stable SEI film is generated on the surface of the electrode, and the problems of lithium precipitation, black spots, electrode plate deformation and the like caused by uneven stress or bubble problems are avoided. It is specifically noted that the clamp pressurization is particularly critical for lithium ion pouch batteries containing silicon anodes because silicon anodes expand dramatically, produce more gas, and have greater internal stress than conventional graphite anodes.

The existing clamp adopts high-strength and high-hardness flat plates to clamp the upper side surface and the lower side surface of a battery core, and fixed pressure is applied by a cylinder or electric equipment.

However, in practice, the error of the coating and rolling process of the soft package battery with the two side tabs can easily cause the thickness of the battery close to the tab to be thinner. Therefore, the position of the battery close to the pole ear is not clamped, so that bubble aggregation and insufficient lithium intercalation are easily caused, and problems of lithium precipitation, pole piece deformation and the like can be caused in serious cases. Likewise, this result is more likely to occur in silicon-containing negative electrode lithium ion batteries.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a both sides go out utmost point ear laminate polymer battery pressurization and become anchor clamps to solve the gas gathering that uses current anchor clamps to produce when high temperature becomes at its utmost point ear position, appear the problem of defects such as black spot, lithium deposition easily.

The technical scheme of the utility model is realized like this:

the utility model provides a pressurizing formation clamp for a soft-packaged battery with lugs at two sides, which comprises a first clamping plate and a second clamping plate which are arranged at two side surfaces of the soft-packaged lithium battery, wherein the first clamping plate and the second clamping plate are respectively used for pressurizing the two side surfaces of the soft-packaged lithium battery, and also comprises a first pressurizing sheet and a second pressurizing sheet, the first pressurizing sheet is horizontally arranged between the first clamping plate and the soft package lithium battery, the second pressurizing sheet is horizontally arranged between the second clamping plate and the soft package lithium battery, the first pressurizing sheet and the second pressurizing sheet respectively extend horizontally to two sides along the length direction of the pole ear of the soft package lithium battery, two ends of the first pressurizing sheet and the second pressurizing sheet are respectively opposite to the lug areas on two sides of the soft-package lithium battery, a pressurizing device is arranged between the two ends of the first pressurizing sheet and the second pressurizing sheet, the pressurizing device is used for synchronously bending the same end of the first pressurizing sheet and the second pressurizing sheet close to the pole lug area along the pole lug direction and attaching the same end of the first pressurizing sheet and the second pressurizing sheet to the pole lug position to form support.

On the basis of the technical scheme, preferably, the first clamping plate and the second clamping plate are the same in size and are opposite in position, and the central areas of the first clamping plate and the second clamping plate are opposite to the side face of the soft package lithium battery.

Further, preferably, the first pressing piece and the second pressing piece are the same in size and opposite in position, the central area of the first pressing piece is fixedly connected with the central area of the first clamping plate, and the central area of the second pressing piece is fixedly connected with the central area of the second clamping plate.

Preferably, the first pressurizing sheet and the second pressurizing sheet are both steel sheets, the thickness of the first pressurizing sheet and the thickness of the second pressurizing sheet are both 0.1mm-1mm, and the strength of the first pressurizing sheet and the second pressurizing sheet is not less than 1000 MPa.

On the basis of the technical scheme, preferably, still be provided with guider between first splint and the second splint, guider includes guide bar and lock nut, the guide bar is provided with four, and vertical fixed setting is in the edge of second splint respectively, and first splint are passed to the upper end of guide bar, and just first splint can follow the guide bar and reciprocate, and the top of guide bar is provided with the locating part, and the guide bar lateral wall is provided with the external screw thread, lock nut cover establishes on the guide bar between locating part and the first splint to be connected with the external screw thread on the guide bar.

Further, preferably, the guiding device further comprises a spring, and the spring is sleeved on the guiding rod between the first clamping plate and the second clamping plate.

In addition to the above technical solution, preferably, the width of the first clamping plate and the second clamping plate is greater than the width of the first pressing plate and the second pressing plate, and the pressing device is fixedly mounted on the second clamping plate.

Preferably, the pressurizing device comprises a first support frame, a second support frame, a winding roller, a pulling rope and a hand wheel, the first support frame and the second support frame are respectively located on two sides of the width direction of the end portion of the second pressurizing sheet and fixedly connected with the second clamping plate, the winding roller is horizontally arranged on the first support frame and the second support frame, one end of the winding roller is rotatably connected with the first support frame, the other end of the winding roller penetrates through the second support frame and is fixedly connected with the hand wheel, the pulling rope is wound on the winding roller, one end of the pulling rope is fixedly connected with the first pressurizing sheet, and the other end of the pulling rope is fixedly connected with the second pressurizing sheet.

Preferably, the pressurizing device further includes a first fluted disc and a second fluted disc, one end of the wire winding roller passes through the first support frame and is fixedly connected with a central shaft of the first fluted disc, the second fluted disc is fixedly sleeved on the wire winding roller and is fixedly mounted on an outer side wall of the first support frame, and the first fluted disc and the second fluted disc are respectively provided with teeth engaged with each other.

The utility model discloses following beneficial effect has for prior art:

(1) the utility model discloses a two sides go out utmost point ear soft-package battery pressurization becomes anchor clamps, put soft-package lithium cell between first splint and the second splint, make the middle zone of first clamp plate and second clamp plate closely laminate with soft-package battery side middle part, make the both ends of first clamp plate and second clamp plate respectively just to soft-package lithium cell both sides utmost point ear position simultaneously, exert pressure to soft-package battery side central area through first splint and second splint, under the prerequisite that keeps pressure stable, through pressure device synchronous same end of first clamp plate and second clamp plate be close to utmost point ear region and follow utmost point ear direction bending and form the support with utmost point ear position laminating, even the position that the both sides face of soft-package lithium cell is inconsistent can also receive relatively even extrusion force, prevent the gas that soft-package lithium cell produced from gathering at its thinner position when high temperature becomes, the problems that the soft package lithium battery is easy to have the defects of black spots, lithium precipitation and the like are avoided;

(2) the guide rod is arranged between the first clamping plate and the second clamping plate, so that when the first clamping plate and the second clamping plate translate relatively, the guide rod can guide the first clamping plate and the second clamping plate, and further stable pressure can be applied to central areas of two side faces of the soft package lithium battery;

(3) the winding roller is rotated through the hand wheel to drive the front tension rope to be wound on the winding roller, so that the same end of the first pressing sheet and the same end of the second pressing sheet are synchronously pulled, the bending degree of the first pressing sheet and the second pressing sheet can be adjusted in a stepless mode according to actual requirements, the operation is convenient, soft-package lithium batteries with different thicknesses can be supported, and the universality is high;

(4) after first piece and second piece of adding meets the requirements to soft packet of lithium battery tab position holding power, through horizontal pulling wire winding roller, can make the first fluted disc of wire winding roller tip press close to the second fluted disc, through tooth intermeshing on first fluted disc and the second fluted disc to realize the wire winding roller auto-lock, avoid the wire winding roller reversal to cause the release pulling force of tractive rope.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a pressurized formation jig of the present invention;

fig. 2 is a front view of the pressurized formation jig disclosed in the present invention;

fig. 3 is a side view of the pressurized formation jig disclosed in the present invention;

the attached drawings are as follows:

1. a first splint; 2. a second splint; 3. a first compression piece; 4. a second compression piece; 5. a pressurizing device; 6. a guide device; 61. a guide bar; 62. locking the nut; 63. a limiting member; 64. a spring; 51. a first support frame; 52. a second support frame; 53. a winding roller; 54. a pulling rope; 55. a hand wheel; 56. a first fluted disc; 57. a second fluted disc; s, teeth; 100. a pouch cell; 110. and (7) a tab.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in fig. 1, with reference to fig. 2-3, an embodiment of the present invention discloses a pressing and forming clamp for a soft package battery with tabs at two sides, which comprises a first clamping plate 1, a second clamping plate 2, a first pressing plate 3, a second pressing plate 4 and a pressing device 5.

Wherein, first splint 1 and the interval parallel arrangement of second splint 2, the convenient level of vacancy department between first splint 1 and second splint 2 places the soft packet of lithium cell 100 who treats to become, and first splint 1 and second splint 2 are dull and stereotyped, and the surface of first splint 1 and second splint 2 can laminate with soft packet of lithium cell 100 side to exert pressure to soft packet of lithium cell 100.

In this embodiment, the first clamping plate 1 and the second clamping plate 2 have the same size and are opposite to each other, and the central areas of the first clamping plate 1 and the second clamping plate 2 are opposite to the side surface of the soft-package lithium battery 100. Therefore, by applying pressure to the central areas of the first clamping plate 1 and the second clamping plate 2, extrusion force can be applied to the thickness direction of the soft package battery, and the central areas of two side surfaces of the soft package battery are kept stressed evenly.

Because the thickness of the two side surfaces of the soft-package lithium battery 100 is not consistent, especially the positions close to the tabs 110, the tabs 110 cannot be clamped tightly by the first clamping plate 1 and the second clamping plate 2, so that the problems of bubble aggregation, insufficient lithium intercalation, possibility of causing lithium precipitation and pole piece deformation in severe cases, and the like are easily caused.

For this reason, the present embodiment solves the above-described problems by providing the first pressing piece 3 and the second pressing piece 4.

Specifically, the 3 levels of first pressure piece set up between first splint 1 and soft packet of lithium cell 100, and the 4 levels of second pressure piece set up between second splint 2 and soft packet of lithium cell 100, and first pressure piece 3 and second pressure piece 4 extend to both sides level along soft packet of lithium cell 100 utmost point ear 110 length direction respectively, and just the both ends of first pressure piece 3 and second pressure piece 4 are respectively just to soft packet of lithium cell 100 both sides utmost point ear 110 region. In this embodiment, the first pressurizing sheet 3 and the second pressurizing sheet 4 are both steel sheets, the thickness of each steel sheet is 0.1mm-1mm, and the strength is greater than or equal to 1000Mpa, so that when the two side surfaces of the soft-package lithium battery 100 are pressurized and kept stable in stress, the end portions of the first pressurizing sheet 3 and the second pressurizing sheet 4 can be bent, so that the first pressurizing sheet 3 and the second pressurizing sheet 4 can be attached to the tab 110 through bending, and the tab 110 is extruded, so that even the positions with inconsistent thickness of the two side surfaces of the soft-package lithium battery 100 can be subjected to relatively uniform extrusion force, gas generated by the soft-package lithium battery 100 is prevented from gathering at the thinner position during high-temperature formation, and the problem of defects such as black spots and lithium precipitation of the soft-package lithium battery 100 is avoided.

In this embodiment, the first pressing piece 3 and the second pressing piece 4 have the same size and are opposite to each other, the central area of the first pressing piece 3 is fixedly connected with the central area of the first clamping plate 1, and the central area of the second pressing piece 4 is fixedly connected with the central area of the second clamping plate 2. In the actual operation process, first pressure piece 3 and first splint 1 can be fixed through glue, the convenience is fixed the two as a whole, equally, second pressure piece 4 and second splint 2 also adopt this mode, from this one, the partial length that extends soft packet of lithium cell 100 length is unanimous at first pressure piece 3 both ends, the partial length that extends soft packet of lithium cell 100 length is unanimous at second pressure piece 4 both ends simultaneously, can make the utmost point ear 110 part pressurized unanimous of soft packet of lithium cell 100 both sides.

In some embodiments, when soft package lithium battery 100 is formed, firstly, place the lithium battery between first splint 1 and second splint 2, through first splint 1 and second splint 2 of upper and lower extrusion, extrude soft package lithium battery 100 thickness direction, nevertheless because first splint 1 of extrusion and second splint 2 are usually bigger than soft package lithium battery 100 surface area, first splint 1 and second splint 2 do not have the position to be limited in soft package lithium battery 100 both sides, slide or deflect along the battery table level easily in the process of exerting pressure, and then cause the extrusion atress unbalanced.

Therefore, the utility model discloses a scheme is: still be provided with guider 6 between first splint 1 and second splint 2, guider 6 includes guide bar 61 and lock nut 62, and guide bar 61 is provided with four, vertical fixed setting is in the edge of second splint 2 respectively, and first splint 1 is passed to the upper end of guide bar 61, and first splint 1 can follow guide bar 61 and reciprocate, and the top of guide bar 61 is provided with locating part 63, and guide bar 61 lateral wall is provided with the external screw thread, lock nut 62 cover is established on the guide bar 61 between locating part 63 and the first splint 1 to be connected with the external screw thread on the guide bar 61.

From this setting, place second splint 2 level, place soft packet of lithium cell 100 level between first splint 1 and second splint 2, to the regional pressure that downwards exerts in first splint 1 center, first splint 1 moves down along guide bar 61, cooperate with second splint 2 and steadily exert pressure to soft packet of lithium cell 100 both sides face center region, when keeping stable pressurized, first splint 1 and second splint 2 keep the determining deviation in vertical direction, through rotatory lock nut 62, make lock nut 62 slide to first splint 1 top surface along guide bar 61, can fix the interval between first splint 1 and the second splint 2, thereby it is stable to keep the extrusion force between the soft packet of lithium cell 100 both sides face.

In this embodiment, the guiding device 6 further comprises a spring 64, and the spring 64 is sleeved on the guiding rod 61 between the first clamping plate 1 and the second clamping plate 2. From this, under initial condition, through the elasticity of spring 64, can be with first splint 1 jack-up to spacing through locating part 63, make first splint 1 and second splint 2 keep the determining deviation in vertical direction, conveniently place soft packet of lithium cell 100.

In this embodiment, the widths of the first clamping plate 1 and the second clamping plate 2 are larger than the widths of the first pressing plate 3 and the second pressing plate 4, and the pressing device 5 is fixedly installed on the second clamping plate 2. With this arrangement, interference of the first pressing piece 3 and the second pressing piece 4 by the pressing device 5 can be avoided.

In this embodiment, the pressing device 5 includes a first supporting frame 51, a second supporting frame 52, a winding roller 53, a pulling rope 54 and a hand wheel 55, the first supporting frame 51 and the second supporting frame 52 are respectively located at two sides of the width direction of the end portion of the second pressing plate 4 and are fixedly connected with the second clamping plate 2, the winding roller 53 is horizontally disposed on the first supporting frame 51 and the second supporting frame 52, one end of the winding roller is rotatably connected with the first supporting frame 51, the other end of the winding roller passes through the second supporting frame 52 and is fixedly connected with the hand wheel 55, the pulling rope 54 is wound on the winding roller 53, one end of the pulling rope is fixedly connected with the first pressing plate 3, and the other end of the pulling rope is fixedly connected with the second pressing plate 4.

Adopt above-mentioned technical scheme, rotate winding roller 53 through hand wheel 55 and drive the winding force rope and twine on winding roller 53 before to carry out the tractive to same one end of first pressure piece 3 and second pressure piece 4 in step, the crooked degree of first pressure piece 3 and second pressure piece 4 can carry out infinitely variable control according to the actual demand, and convenient operation can support the soft packet of lithium cell 100 of different thickness, and the commonality is strong. Meanwhile, in the embodiment, the winding roller 53 is horizontally arranged between the same ends of the first pressing piece 3 and the second pressing piece 4, the bending degree of the first pressing piece 3 and the second pressing piece 4 can be accurately controlled by the winding length of the drawing wire, and the uniformity of the stress on the upper surface and the lower surface of the battery is ensured. In this embodiment, the pull cord 54 is preferably a steel cord,

on the basis of the above technical scheme, the pressurizing device 5 further includes a first fluted disc 56 and a second fluted disc 57, one end of the winding roller 53 penetrates through the first support frame 51 and is fixedly connected with a central shaft of the first fluted disc 56, the second fluted disc 57 is fixedly sleeved on the winding roller 53 and is fixedly installed on the outer side wall of the first support frame 51, and the first fluted disc 56 and the second fluted disc 57 are respectively provided with teeth S which are meshed with each other.

From this setting, after first pressure plate 3 and second pressure plate 4 satisfied the requirement to soft packet of lithium cell 100 utmost point ear 110 position holding power, through horizontal pulling wire winding roller 53, can make the first fluted disc 56 of wire winding roller 53 tip press close to second fluted disc 57, through tooth S intermeshing on first fluted disc 56 and the second fluted disc 57 to realize wire winding roller 53 auto-lock, avoid wire winding roller 53 reversal to cause pulling rope 54 to release pulling force.

In the above embodiment, the winding roller 53 may be translated in the horizontal direction between the first and second support frames 51 and 52.

Through the cooperation of above-mentioned guider 6 and pressure device 5, can adjust the interval between first splint 1 and the second splint 2, be suitable for the soft packet of lithium cell 100 of different thickness, and can cover unilateral or two sides and go out utmost point ear battery.

When the forming jig of the present embodiment is used, the lithium battery 100 is mounted in the forming jig and pressurized to a pressure of 0.07 Mpa. After the pre-charging and the formation are finished, the battery is charged to a full state, and then the battery is disassembled. After the pre-charging and the formation, no bubble aggregation close to the position of the pole lug is found, and the overall color of the pole piece is consistent, so that the lithium intercalation is uniform, no lithium precipitation exists, and the pole piece is flat; otherwise, local bubble aggregation and a small amount of black spots exist at the position close to the pole lug, which indicates that the lithium intercalation is insufficient, and the phenomena of slight lithium precipitation and pole piece deformation exist.

The working principle of the formation clamp in use is as follows:

the soft package lithium battery 100 is placed between a first clamping plate 1 and a second clamping plate 2, the middle areas of a first pressurizing sheet 3 and a second pressurizing sheet 4 are tightly attached to the middle part of the side face of the soft package lithium battery, meanwhile, two ends of the first pressurizing sheet 3 and the second pressurizing sheet 4 are respectively opposite to lugs 110 on two sides of the soft package lithium battery 100, the central area of the side face of the soft package lithium battery is pressurized through the first clamping plate 1 and the second clamping plate 2, the first clamping plate 1 and the second clamping plate 2 are kept to be stably pressurized through a guiding device 6, a winding roller 53 is rotated through a hand wheel 55 to drive a front tension rope to be wound on the winding roller 53, so that the same end of the first pressurizing sheet 3 and the second pressurizing sheet 4 is synchronously pulled, the same end of the first pressurizing sheet 3 and the second pressurizing sheet 4 is bent along the direction of the lug 110 near the lug 110 area and is attached to and extruded with the lug 110 to form a support, after first pressure plate 3 and second pressure plate 4 meet the requirements to soft packet of lithium cell 100 utmost point ear 110 position holding power, through horizontal pulling wire winding roller 53, second fluted disc 57 is pressed close to first fluted disc 56 that can make wire winding roller 53 tip, tooth S intermeshing on through first fluted disc 56 and second fluted disc 57, thereby realize wire winding roller 53 auto-lock, even the position that makes soft packet of lithium cell 100' S both sides face also can receive relatively even extrusion force, the gas gathering that soft packet of lithium cell 100 produced when preventing high pyrolysis is at its thinner position, black spot has been avoided soft packet of lithium cell 100 to appear easily, the problem of defects such as lithium of appearance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a both sides go out utmost point ear laminate polymer battery pressurization and become anchor clamps, its is used for pressurizing its characterized in that to laminate polymer battery both sides face respectively including setting up first splint (1) and second splint (2) at laminate polymer battery both sides face, first splint (1) and second splint (2): still include first pressure piece (3) and second pressure piece (4), first pressure piece (3) level sets up between first splint (1) and soft packet of lithium cell, and second pressure piece (4) level sets up between second splint (2) and soft packet of lithium cell, and first pressure piece (3) and second pressure piece (4) are respectively along soft packet of lithium cell utmost point ear length direction to both sides level extension, and just the both ends of first pressure piece (3) and second pressure piece (4) are respectively to soft packet of lithium cell both sides utmost point ear region, all are provided with pressure device (5) between the both ends of first pressure piece (3) and second pressure piece (4), pressure device (5) are used for making in step that first pressure piece (3) and second pressure piece (4) are close to utmost point ear region along utmost point ear direction bending and form the support with utmost point ear position laminating with utmost point ear position.

2. The soft package battery with the tabs at two sides as claimed in claim 1 is pressurized to form a clamp, which is characterized in that: the first clamping plate (1) and the second clamping plate (2) are the same in size and are right in position, and the central areas of the first clamping plate (1) and the second clamping plate (2) are right opposite to the side face of the soft package lithium battery.

3. The soft package battery with the tabs at two sides as claimed in claim 2 is pressurized to form a clamp, which is characterized in that: the first pressurizing piece (3) and the second pressurizing piece (4) are the same in size and are opposite in position, the central area of the first pressurizing piece (3) is fixedly connected with the central area of the first clamping plate (1), and the central area of the second pressurizing piece (4) is fixedly connected with the central area of the second clamping plate (2).

4. The soft package battery with the tabs at two sides as claimed in claim 1 is pressurized to form a clamp, which is characterized in that: the first pressurizing sheet (3) and the second pressurizing sheet (4) are both steel sheets, the thickness of the steel sheets is 0.1mm-1mm, and the strength of the steel sheets is more than or equal to 1000 Mpa.

5. The soft package battery with the tabs at two sides as claimed in claim 3 is pressurized to form a clamp, which is characterized in that: still be provided with guider (6) between first splint (1) and second splint (2), guider (6) include guide bar (61) and lock nut (62), guide bar (61) are provided with four, and vertical fixed setting is in the edge of second splint (2) respectively, and first splint (1) are passed to the upper end of guide bar (61), and just guide bar (61) can be followed in first splint (1) and reciprocate, and the top of guide bar (61) is provided with locating part (63), and guide bar (61) lateral wall is provided with the external screw thread, lock nut (62) cover is established on guide bar (61) between locating part (63) and first splint (1) to be connected with the external screw thread on guide bar (61).

6. The soft package battery with the tabs at two sides as claimed in claim 5 is pressurized to form a clamp, which is characterized in that: the guide device (6) further comprises a spring (64), and the spring (64) is sleeved on the guide rod (61) between the first clamping plate (1) and the second clamping plate (2).

7. The soft package battery with the tabs at two sides as claimed in claim 3 is pressurized to form a clamp, which is characterized in that: the width of the first clamping plate (1) and the second clamping plate (2) is larger than that of the first pressurizing piece (3) and the second pressurizing piece (4), and the pressurizing device (5) is fixedly installed on the second clamping plate (2).

8. The soft package battery with the tabs at two sides as claimed in claim 7 is pressurized to form a clamp, which is characterized in that: the pressurizing device (5) comprises a first support frame (51), a second support frame (52), a winding roller (53), a pulling rope (54) and a hand wheel (55), wherein the first support frame (51) and the second support frame (52) are respectively positioned on two sides of the end part of the second pressurizing sheet (4) in the width direction and fixedly connected with the second clamping plate (2), the winding roller (53) is horizontally arranged on the first support frame (51) and the second support frame (52), one end of the winding roller is rotatably connected with the first support frame (51), the other end of the winding roller passes through the second support frame (52) and is fixedly connected with the hand wheel (55), the pulling rope (54) is wound on the winding roller (53), one end of the winding roller is fixedly connected with the first pressurizing sheet (3), and the other end of the winding roller is fixedly connected with the second pressurizing sheet (4).

9. The soft package battery with the tabs at two sides as claimed in claim 8 is pressurized to form a clamp, which is characterized in that: pressure device (5) still include first fluted disc (56) and second fluted disc (57), the one end of wire winding roller (53) is passed first support frame (51) and with the center pin fixed connection of first fluted disc (56), second fluted disc (57) fixed cover is established on wire winding roller (53) and fixed mounting is in first support frame (51) lateral wall, be provided with intermeshing' S tooth (S) on first fluted disc (56) and the second fluted disc (57) respectively.