Lithium battery heat sealing tool and equipment

Abstract

The utility model discloses a lithium battery heat-sealing tool and lithium battery heat-sealing equipment. The lithium battery heat-sealing tool comprises a bottom supporting plate, a battery supporting plate and a blocking piece, the bottom supporting plate is provided with a first end part; the battery supporting plate is provided with a third end and a fourth end which are oppositely arranged, the third end and the first end are arranged on the same side, and the battery supporting plate is located on the bottom supporting plate and reciprocates in the first direction. The blocking piece is arranged at the first end part and is movably connected with the first end part, so that the blocking piece can be close to or far away from the first end part, or the blocking piece is arranged at the third end part. The battery supporting plate abuts against the end socket through the blocking piece, that is, a gap is formed between the battery supporting plate and the end socket through the blocking piece, and the distance of the gap is limited by the blocking piece. Therefore, the size of the inner unsealed area of the battery is limited by the barrier, the accuracy of the size of the inner sealed area can be ensured, the problems of battery swelling and battery failure are avoided, and the heat sealing of the battery is qualified.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a lithium battery heat sealing tool and equipment. Background Art

[0002] Battery heat sealing is a key process in the battery production process. Specifically, the top and side sealing edges of the aluminum-plastic film of the lithium battery need to be heat sealed. Among them, the size process of the inner unsealed area of ​​the bottom seal or side seal of the lithium battery and the outer unsealed area of ​​the top seal is more important, which can easily cause battery bulging and battery failure, causing battery deformation and capacity decay during normal operation.

[0003] In the related art, it is difficult to ensure the size of the inner unsealed area or the outer unsealed area, which in turn causes battery deformation, capacity attenuation, and reduced packaging yield. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a lithium battery heat sealing tool and equipment, which limits the size of the inner unsealed area of ​​the battery by a barrier, can ensure the accuracy of the size of the inner sealed area, avoid battery bulging and battery failure, and make the battery heat sealed qualified.

[0005] According to an embodiment of the first aspect of the utility model, a lithium battery heat sealing tool comprises a bottom support plate, a battery support plate and a barrier.

[0006] The bottom support plate is provided with a first end portion;

[0007] The battery support plate is provided with a third end and a fourth end which are arranged opposite to each other, the third end being arranged on the same side as the first end, the battery support plate being located on the bottom support plate, the battery support plate being used to support the battery and drive the battery to reciprocate in a first direction, the first direction being parallel to the direction from the third end to the fourth end;

[0008] The blocking member is disposed at the first end and is movably connected to the first end. The blocking member can be close to or away from the first end. Alternatively, the blocking member is disposed at the third end.

[0009] In this embodiment, a barrier is disposed at the first end and movably connected to the first end, and the barrier can be close to or away from the first end, or the barrier is disposed at the third end. The battery tray is abutted against the sealing head through the barrier, that is, the barrier allows a certain gap to be maintained between the battery tray and the sealing head, and the distance of the gap is limited by the barrier. In this way, the barrier limits the size of the unsealed area a of the battery, which can ensure the accuracy of the size of the unsealed area, avoid battery bloating and battery failure, and ensure that the battery heat seal is qualified, and battery deformation, capacity attenuation and other problems will not occur during normal operation.

[0010] Furthermore, when the battery is bottom-sealed or side-sealed, the battery's to-be-sealed area is set on the sealing head, and the battery's inner unsealed area is not located on the sealing head. The size of the inner unsealed area is the size of the barrier. In this way, the size of the inner unsealed area of ​​the battery is limited by the barrier, which can ensure the accuracy of the size of the inner sealed area, avoid battery bulging and battery failure, make the battery heat-sealed qualified, and will not cause battery deformation, capacity attenuation and other problems during normal operation.

[0011] According to some embodiments of the present invention, when the barrier member is disposed at the third end portion, a mounting portion is provided on the third end portion, and the mounting portion is detachably connected to the barrier member.

[0012] According to some embodiments of the utility model, the battery support plate includes a first surface and a second surface arranged opposite to each other, the first surface is used to place the battery, and the second surface faces the bottom support plate; the mounting portion includes a notch arranged on the second surface close to the third end area, and a plurality of positioning holes are arranged on the notch.

[0013] According to some embodiments of the present invention, the barrier element includes a first barrier portion, the first barrier portion extends along a second direction, the second direction is parallel to a direction from the second surface to the first surface, and the first barrier portion protrudes from the first surface.

[0014] According to some embodiments of the present invention, a dimension of the first blocking portion in a third direction is greater than or equal to a dimension of the third end portion in the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0015] According to some embodiments of the present invention, a locking member is further included, wherein the locking member includes a first direction locking portion and a third direction locking portion, wherein the first direction locking portion and the third direction locking portion are separately provided or integrally formed.

[0016] The first direction locking portion cooperates with the battery support plate to limit the freedom of the battery in the first direction; the third direction locking portion cooperates with the battery support plate to limit the freedom of the battery in the third direction.

[0017] According to some embodiments of the present invention, the first direction locking portion and the third direction locking portion are integrally formed, and an avoidance notch is provided at a connection position between the first direction locking portion and the third direction locking portion.

[0018] According to some embodiments of the present utility model, the fourth end of the battery support plate is provided with a battery fixing mechanism and a handle.

[0019] The battery fixing mechanism cooperates with the battery support plate to limit the freedom of the battery in the second direction;

[0020] The handle is used to push and pull the battery support plate to drive the battery to move along with the battery support plate.

[0021] According to some embodiments of the present invention, when the barrier is disposed at the first end portion and is movably connected to the first end portion,

[0022] A connecting piece is provided at one side of the first end, and the connecting piece is movably connected to the blocking piece, so that the blocking piece can be close to or away from the first end.

[0023] A lithium battery heat sealing device according to an embodiment of the second aspect of the utility model comprises a sealing head and the lithium battery heat sealing tool in the first aspect, wherein a spacer is provided on the surface of the sealing head facing the third end of the battery tray.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 The structure of a lithium battery heat sealing tool heat sealing a battery according to the embodiment of the utility model Figure 1 ;

[0027] Figure 2 The structure of a lithium battery heat sealing tool heat sealing a battery according to the embodiment of the utility model Figure 2 ;

[0028] Figure 3 The structure of a lithium battery heat sealing tool heat sealing a battery according to the embodiment of the utility model Figure 3 ;

[0029] Figure 4 yes Figure 3A magnified representation of part A when the barrier does not abut against the head Figure 1 ;

[0030] Figure 5 yes Figure 3 An enlarged schematic diagram of a part A when the barrier member abuts against the head;

[0031] Figure 6 yes Figure 3 A magnified representation of part A when the barrier does not abut against the head Figure 2 ;

[0032] Figure 7 It is a schematic structural diagram of heat-sealing another type of battery using a lithium battery heat-sealing tool according to an embodiment of the utility model;

[0033] Figure 8 It is a schematic diagram of an explosion of another type of battery being heat-sealed by a lithium battery heat-sealing tool according to an embodiment of the utility model;

[0034] Fig. 9 is a schematic diagram of the locking member structure according to an embodiment of the utility model;

[0035] Reference numerals:

[0036] Bottom support plate 10, first end portion 101, second end portion 102, first connecting hole 11, and long hole 12;

[0037] The battery support plate 20 , the third end 201 , the fourth end 202 , the first surface 203 , the second surface 204 , the second connection hole 21 , and the notch 22 ;

[0038] A barrier member 30, a first barrier portion 31, and a second barrier portion 32;

[0039] Battery fixing mechanism 40, pressing block 41, pressing rib 42, horizontal clamp 43, handle 50;

[0040] Locking member 61, first direction locking portion 611, third direction locking portion 612, guide plate 62, waist-shaped hole 621, fastener 63;

[0041] Battery 70, internal bare battery cell 71, head 80, guide member 92, sliding member 91. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0043] The disclosure below provides many different embodiments or examples to realize different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0044] like Figure 1-Figure 9 As shown, a lithium battery heat sealing tool according to an embodiment of the first aspect of the utility model includes: a bottom support plate 10, a battery support plate 20 and a barrier member 30.

[0045] The bottom support plate 10 is provided with a first end portion 101 .

[0046] The battery support plate 20 is provided with a third end 201 and a fourth end 202 which are arranged opposite to each other, and the third end 201 is arranged on the same side as the first end 101. The battery support plate 20 is located on the bottom support plate 10, and is used to support the battery 70 and drive the battery 70 to reciprocate in a first direction. The first direction is parallel to the direction from the third end 201 to the fourth end 202.

[0047] The barrier member 30 is disposed at the first end portion 101 and is movably connected to the first end portion 101 . The barrier member 30 can be moved closer to or farther from the first end portion 101 . Alternatively, the barrier member 30 is disposed at the third end portion 201 .

[0048] It should be noted that the first direction C1 , the second direction C2 , and the third direction C3 are perpendicular to each other.

[0049] In practical applications, the lithium battery heat sealing equipment includes a sealing head 80 and a lithium battery heat sealing tool. The lithium battery heat sealing tool includes a bottom support plate 10 and a battery support plate 20. The battery support plate 20 is arranged on the bottom support plate 10, and the battery 70 is placed on the battery support plate 20.

[0050] The bottom support plate 10 includes a first end 101 and a second end 102; the battery support plate 20 includes a third end 201 and a fourth end 202, the first end 101 and the third end 201 are arranged on the same side, and the second end 102 and the fourth end 202 are arranged on the same side. The battery support plate 20 includes a first surface 203 and a second surface 204, the first surface 203 contacts the battery 70, and the second surface 204 faces the bottom support plate 10.

[0051] The battery support plate 20 performs reciprocating linear motion on the bottom support plate 10 along the first direction C1.

[0052] In detail, Figure 1 and Figure 2 As shown, two guide plates 62 and a plurality of first connection holes 11 are provided on the bottom support plate 10. The two guide plates 62 are arranged at intervals along the third direction C3, and the cross section of the guide plate 62 is L-shaped, and a waist-shaped hole 621 is provided on one side of the L-shape. The guide plate 62 is connected to the bottom support plate 10 by bolts passing through the waist-shaped hole 621 and the first connection holes 11, and the other side of the L-shape can guide the battery support plate 20 to move along the first direction C1, while limiting the freedom of the battery support plate 20 in the second and third directions.

[0053] In addition, a fastener 63 and two elongated holes 12 are provided on the bottom support plate 10, and the elongated holes 12 extend along the third direction C3. The two elongated holes 12 are arranged at intervals along the third direction C3, and the fastener 63 is connected to the bottom support plate 10 through the elongated holes 12, and the fastener 63 cooperates with the guide of the battery support plate 20 to enable the battery support plate 20 to move along the first direction C1.

[0054] It should be noted that battery trays 20 of different sizes can be selected according to the specifications of the battery 70. Based on the battery trays 20 of different sizes, the positions of the fasteners 63 and the guide plates 62 can be adjusted in the third direction C3 to adapt to battery trays 20 of different sizes, ensuring that battery trays 20 of each size can move along the first direction C1.

[0055] In the first embodiment, if Figure 1-Figure 3 As shown, the lithium battery heat sealing tool further includes a barrier 30. The barrier 30 is disposed at the third end 201 of the battery tray 20. When the battery tray 20 makes a reciprocating linear motion in the first direction C1, the battery tray 20 gradually approaches the sealing head 80. As the barrier 30 is disposed at the third end 201 of the battery tray 20. Figure 5 As shown, the battery tray 20 abuts against the sealing head 80 via the barrier 30 , that is, the barrier 30 allows a gap to exist between the battery tray 20 and the sealing head 80 , and the distance of the gap is limited by the barrier 30 .

[0056] At this time, the area b to be sealed of the battery 70 is located on the sealing head 80, and the unsealed area a of the battery 70 is not located on the sealing head 80, and the size of the unsealed area a is also the size of the barrier 30. In this way, the size of the unsealed area a of the battery 70 is limited by the barrier 30, so that the accuracy of the size of the unsealed area can be guaranteed, and the problems of battery 70 swelling and battery 70 failure can be avoided, so that the battery 70 is heat-sealed qualified, and the battery 70 deformation, capacity attenuation and other problems will not occur during normal operation. Specifically, the provision of the barrier 30 can prevent the sealing head 80 from being close to the edge of the punching hole of the aluminum-plastic film of the battery 70 during bottom sealing or side sealing, so as to avoid squeezing the internal bare battery cell 71 of the battery 70, and at the same time avoid that there is no reserved space for the hot melt adhesive on the aluminum-plastic film, causing the hot melt adhesive to diffuse onto the internal bare battery cell 71. Figure 1 As shown, the battery 70 is reduced from swelling or even failure. The barrier 30 can also roughly limit the size of the top sealing edge to avoid the hot melt adhesive on the top of the aluminum-plastic film having no reserved space during the top sealing, causing the hot melt adhesive to spread to the external terminal ear, such as Figure 2 and Figure 3 As shown, the poor appearance of the battery 70 is reduced, the reduction of the electrical connection area of ​​the external terminal is further avoided, and the failure of the battery 70 is reduced.

[0057] In the second embodiment, if Figure 6 As shown, the difference from the first embodiment is that the barrier 30 is arranged at a different position.

[0058] Specifically, a connecting piece is provided on one side of the first end 101 of the bottom support plate 10, and the connecting piece is movably connected to the barrier 30, so that the barrier 30 can approach or move away from the first end 101. When the battery support plate 20 makes a reciprocating linear motion in the first direction C1, the battery support plate 20 gradually approaches the head 80, and the battery support plate 20 drives the barrier 30 to gradually approach the head 80. The battery support plate 20 is abutted against the head 80 through the barrier 30, that is, the barrier 30 leaves a gap between the battery support plate 20 and the head 80, and the distance of the gap is limited by the barrier 30. Furthermore, the to-be-sealed area b of the battery 70 is arranged on the head 80, and the unsealed area a of the battery 70 is not located on the head 80, and the size of the unsealed area a is also the size of the barrier 30. In this way, the size of the unsealed area a of the battery 70 is limited by the barrier 30, so that the accuracy of the size of the unsealed area a can be ensured, and the problems of battery 70 swelling and battery 70 failure can be avoided, so that the battery 70 is heat-sealed and qualified, and the battery 70 deformation, capacity attenuation and other problems will not occur during normal operation.

[0059] In a specific embodiment, the connecting member includes a guide member 92 and a sliding member 91 that are slidably matched. The guide member 92 can be a guide rail, a slide rail, etc., and the sliding member 91 can be a slider, a pulley, etc.

[0060] like Figure 6As shown, a guide member 92 is provided on one side of the first end portion 101, and the extension direction of the guide member 92 extends along the first direction C1. A blocking member 30 is connected to the sliding member 91. When the battery tray 20 makes a reciprocating linear motion in the first direction C1, the battery tray 20 gradually approaches the head 80, and the battery tray 20 abuts against the blocking member 30. Since the blocking member 30 is connected to the sliding member 91, the blocking member 30 continues to move toward the head 80 together with the battery tray 20 until the blocking member 30 abuts against the head 80. At the current moment, the blocking member 30 is clamped between the battery tray 20 and the head 80.

[0061] Of course, it is understandable that the above-mentioned connecting member may also include an elastic member. For example, the elastic member may be a tension spring, one end of which is connected to the first end portion 101 and the other end is connected to the barrier 30, and the tension and compression direction of the tension spring is the first direction C1.

[0062] In the third embodiment, the difference from the first embodiment and the second embodiment lies in that the barrier member 30 of the lithium battery heat sealing tool is arranged at a different position.

[0063] Specifically, a spacer is provided on the surface of the sealing head 80 facing the third end 201 of the battery tray 20, and the spacer may be the barrier 30 in the first embodiment or the second embodiment. It is understandable that when the spacer is provided on the sealing head 80, the barrier 30 provided at the third end 201 of the battery tray 20 or the first end 101 of the bottom tray 10 may be omitted. Of course, it may also be retained according to the size requirements of the unsealed area, which is determined according to the specific situation.

[0064] When the battery support plate 20 makes a reciprocating linear motion in the first direction C1, the battery support plate 20 gradually approaches the sealing head 80, and the battery support plate 20 abuts against the barrier on the sealing head 80. Then, the to-be-sealed area b of the battery 70 is arranged on the sealing head 80, and the unsealed area a of the battery 70 is not located on the sealing head 80, and the size of the unsealed area a is the size of the barrier. In this way, the size of the unsealed area a of the battery 70 is limited by the barrier, which can ensure the accuracy of the size of the unsealed area, avoid the problem of battery 70 bulging and battery 70 failure, make the battery 70 heat-sealed qualified, and will not cause the battery 70 deformation, capacity attenuation and other problems in normal operation.

[0065] The following embodiments are described by taking the first embodiment as an example:

[0066] According to some embodiments of the present invention, a mounting portion is provided on the third end portion 201 , and the mounting portion is detachably connected to the barrier member 30 to adjust the distance between the barrier member 30 and the third end portion 201 .

[0067] It should be noted that the mounting portion and the barrier 30 can be threadedly connected, plug-inly connected, snap-fit ​​connected, etc., which are not listed one by one in this embodiment. In this way, barrier 30 of different sizes can be replaced according to different sizes of the area to be sealed b.

[0068] In detail: Figure 4 As shown, a notch 22 is provided on the second surface 204 of the battery support plate 20 near the third end 201, and the notch 22 is the above-mentioned mounting portion. A positioning hole (not shown) is provided at the notch 22, and the barrier 30 is connected to the positioning hole by bolts.

[0069] like Figure 4 As shown, the cross section of the barrier 30 is L-shaped, and includes a first barrier portion 31 and a second barrier portion 32. The second barrier portion 32 is disposed at the notch 22, and the bolt passes through the second barrier portion 32 to connect the barrier 30 to the notch 22.

[0070] The first barrier portion 31 is located between the seal head 80 and the battery tray 20. The first barrier portion 31 extends along the second direction C2, and the first barrier portion 31 protrudes from the first surface 203 of the battery tray 20. In this way, the first barrier portion 31 helps to abut against the battery 70, and helps to ensure that the first barrier portion 31 completely blocks the seal head 80, so that the first barrier portion 31 exists at any position between the seal head 80 and the third end 201 of the battery tray 20. Among them, the size of the first barrier portion 31 in the third direction C3 can be equal to the size of the seal head 80 in the third direction C3, or the size of the first barrier portion 31 in the third direction C3 is greater than the size of the seal head 80 in the third direction C3. The size of the first barrier portion 31 in the first direction can be 1±0.5mm.

[0071] Of course, it is understandable that the cross-section of the barrier member 30 may be in other shapes, which are not listed in this embodiment. In other embodiments, only the first barrier portion 31 may be provided.

[0072] Alternatively, if Figure 7-Figure 9 As shown, the lithium battery heat sealing tool further includes a locking member 61. The locking member 61 includes a first direction locking portion 611 and a third direction locking portion 612, and the first direction locking portion 611 and the third direction locking portion 612 are separately arranged or integrally formed.

[0073] The battery support plate 20 is provided with a plurality of second connection holes 21, through which the battery support plate 20 cooperates with the first direction locking portion 611 to limit the freedom of the battery 70 in the first direction C1; the battery support plate 20 cooperates with the third direction locking portion 612 to limit the freedom of the battery 70 in the third direction C3. In this way, the battery 70 can be firmly locked on the battery support plate 20 to prevent the battery 70 from accidentally loosening.

[0074] Preferably, the first direction locking portion 611 and the third direction locking portion 612 are integrally formed, which is convenient for installation and helps to reduce production costs.

[0075] like Figure 8 As shown, in a specific embodiment, two locking members 61 are provided. The two locking members 61 are spaced apart in the third direction C3 and are provided on both sides of the battery 70. The two first direction locking portions 611 simultaneously position one side of the battery 70 in the first direction C1 to limit the freedom of the battery 70 in the first direction C1. The two third direction locking portions 612 respectively position the two opposite sides of the battery 70 in the third direction C3 to limit the freedom of the battery 70 in the third direction C3.

[0076] like Fig. 9 As shown, considering that the locking member 61 may accidentally damage the corner of the battery 70 when installing the locking member 61, an avoidance notch 22 is provided at the connection position between the first direction locking portion 611 and the third direction locking portion 612, and the avoidance notch 22 can be roughly arc-shaped. That is, a rounded corner is made at the connection position between the first direction locking portion 611 and the third direction locking portion 612.

[0077] According to some embodiments of the present invention, the fourth end portion 202 of the battery support plate 20 is provided with a battery fixing mechanism 40 and a handle 50 .

[0078] like Figure 2 and Figure 3 As shown, a handle 50 is connected to the fourth end 202 of the battery support plate 20. The position of the handle 50 is adjustable, and the handle 50 is pushed and pulled during heat sealing to enable the battery 70 to move with the battery support plate 20. This prevents the sealing head 80 from causing harm to the operator.

[0079] A battery fixing mechanism 40 is connected to the fourth end 202 of the battery support plate 20. The battery fixing mechanism 40 includes a pressing block 41, a pressing rib 42 and a horizontal clamp 43. The pressing rib 42 is in the shape of a long strip, and is an arc-shaped pressing plate. One end of the pressing rib 42 is connected to the pressing block 41, and the other end is connected to the horizontal clamp 43. The pressing block 41 is used to be pressed on the battery 70.

[0080] When the handle of the horizontal clamp 43 is lowered, the pressure rib 42 is pressed down to fix the battery 70. When the handle of the horizontal clamp 43 is raised, the pressure rib 42 is lifted up, and the heat-sealed battery 70 can be removed, and then the battery 70 is changed, and the operation is repeated to perform side sealing, bottom sealing, top sealing, etc.

[0081] A lithium battery heat sealing device according to an embodiment of the second aspect of the utility model includes a sealing head 80 and a lithium battery heat sealing tool.

[0082] The lithium battery heat sealing tool is the lithium battery heat sealing tool corresponding to the embodiment of the first aspect above. Therefore, the lithium battery heat sealing equipment has the advantages of the lithium battery heat sealing tool, so it will not be described in detail.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0084] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0085] In the description of the present invention, "plurality" means two or more.

[0086] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0087] In the description of the present invention, a first feature “on”, “above” and “over” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the horizontal width of the first feature is higher than that of the second feature.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", "some examples", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lithium battery heat sealing tool, characterized in that: include: A bottom supporting plate (10), wherein the bottom supporting plate (10) is provided with a first end portion (101); A battery support plate (20), the battery support plate (20) being provided with a third end (201) and a fourth end (202) arranged opposite to each other, the third end (201) being arranged on the same side as the first end (101), the battery support plate (20) being located on the bottom support plate (10), the battery support plate (20) being used to support the battery (70) and drive the battery (70) to reciprocate in a first direction, the first direction being parallel to a direction from the third end (201) to the fourth end (202); A barrier member (30), wherein the barrier member (30) is disposed at the first end portion (101) and is movably connected to the first end portion (101), and the barrier member (30) can be moved closer to or farther away from the first end portion (101), or the barrier member (30) is disposed at the third end portion (201).

2. The lithium battery heat sealing tool according to claim 1, characterized in that: When the barrier member (30) is arranged on the third end portion (201), a mounting portion is provided on the third end portion (201), and the mounting portion is detachably connected to the barrier member (30).

3. The lithium battery heat sealing tool according to claim 2, characterized in that: The battery support plate (20) comprises a first surface (203) and a second surface (204) which are arranged opposite to each other, the first surface (203) is used to place the battery (70), and the second surface (204) faces the bottom support plate (10); The mounting portion comprises a notch (22) disposed in a region of the second surface (204) close to the third end (201), and a plurality of positioning holes are arranged on the notch (22).

4. The lithium battery heat sealing tool according to claim 3, characterized in that: The barrier element (30) comprises a first barrier portion (31), the first barrier portion (31) extending along a second direction, the second direction being parallel to a direction from the second surface (204) to the first surface (203), and the first barrier portion (31) protruding from the first surface (203).

5. The lithium battery heat sealing tool according to claim 4, characterized in that: The dimension of the first blocking portion (31) in the third direction is greater than or equal to the dimension of the third end portion (201) in the third direction, and the third direction is perpendicular to the first direction and the second direction.

6. The lithium battery heat sealing tool according to claim 5, characterized in that: The invention also comprises a locking member (61), wherein the locking member (61) comprises a first direction locking portion (611) and a third direction locking portion (612), wherein the first direction locking portion (611) and the third direction locking portion (612) are separately arranged or integrally formed. The first direction locking portion (611) cooperates with the battery support plate (20) to limit the freedom of the battery (70) in the first direction; the third direction locking portion (612) cooperates with the battery support plate (20) to limit the freedom of the battery (70) in the third direction.

7. The lithium battery heat sealing tool according to claim 6, characterized in that: The first direction locking portion (611) and the third direction locking portion (612) are integrally formed, and a relief notch (613) is provided at the connection position between the first direction locking portion (611) and the third direction locking portion (612).

8. The lithium battery heat sealing tool according to claim 5, characterized in that: The fourth end portion (202) of the battery support plate (20) is provided with a battery fixing mechanism (40) and a handle (50). The battery fixing mechanism (40) cooperates with the battery support plate (20) to limit the degree of freedom of the battery (70) in the second direction; The handle (50) is used to push and pull the battery support plate (20) to drive the battery (70) to move along with the battery support plate (20).

9. The lithium battery heat sealing tool according to claim 1, characterized in that: When the blocking member (30) is disposed at the first end portion (101) and is movably connected to the first end portion (101), A connecting piece is provided on one side of the first end portion (101), and the connecting piece is movably connected to the blocking piece (30), so that the blocking piece (30) can be moved closer to or farther away from the first end portion (101).

10. A lithium battery heat sealing device, characterized in that: It comprises a sealing head and a lithium battery heat sealing tool as described in any one of claims 1 to 9, wherein a spacer is provided on the surface of the sealing head facing the third end (201) of the battery support plate (20).

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