Battery air exhaust clamp and battery air exhaust packaging device

Abstract

The utility model provides a battery air exhaust clamp and a battery air exhaust packaging device. The battery air exhaust clamp comprises a first accommodating section, a transition section and a second accommodating section which are communicated in sequence, and the first accommodating section is vertically arranged, is provided with a first accommodating cavity and is used for accommodating a battery; the second accommodating section is horizontally arranged, is provided with a second accommodating cavity and is used for accommodating at least one part of an air bag of the battery; according to the utility model, the problem that the liquid loss is large when the battery is subjected to air exhaust forming in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, and more specifically, to a battery vacuum clamp and a battery vacuum sealing device. Background Technology

[0002] Currently, pouch lithium-ion batteries have advantages such as high energy density, low internal resistance, and long service life, and are therefore widely used in the field of new energy batteries.

[0003] In existing pouch lithium-ion batteries, after formation, the battery is typically placed horizontally in an equipment during the vacuum forming process. The air bladder is then punctured before vacuuming and sealing. However, this method results in significant liquid loss, which is detrimental to electrolyte retention, especially for high-rate batteries with large electrolyte injection volumes. This negatively impacts the battery's high-rate charge / discharge performance and long-cycle performance.

[0004] As can be seen from the above, there is a problem with the large amount of liquid loss during battery vacuuming and molding in the relevant technologies. Utility Model Content

[0005] The main purpose of this utility model is to provide a battery vacuuming clamp and a battery vacuuming and sealing device to solve the problem of large liquid loss during battery vacuuming and forming in related technologies.

[0006] To achieve the above objectives, according to one aspect of the present invention, a battery vacuum clamp is provided, comprising a first accommodating section, a transition section, and a second accommodating section connected in sequence. The first accommodating section is vertically arranged and has a first accommodating cavity for accommodating a battery; the second accommodating section is horizontally arranged and has a second accommodating cavity for accommodating at least a portion of the battery's airbag.

[0007] Furthermore, the battery vacuum clamp also includes a puncture component, which is movably disposed on the side wall of the second receiving section for puncturing the airbag bag.

[0008] Furthermore, the second receiving section is provided with a clearance opening, which is connected to the second receiving cavity to avoid the puncturing component.

[0009] Furthermore, there are multiple puncture components, which are spaced apart.

[0010] Furthermore, the cross-sectional area of ​​the second accommodating cavity is greater than the cross-sectional area of ​​the transition section and the cross-sectional area of ​​the first accommodating section.

[0011] Furthermore, the airbag includes an airbag body and a connecting section. The airbag body is horizontally housed in the second accommodating cavity, and the connecting section is located in the inner cavity of the transition section and is connected to the airbag body and the battery respectively.

[0012] Furthermore, the battery vacuum clamp also includes a secondary encapsulation head, which is located at one end of the first accommodating section near the transition section, and is used to perform secondary encapsulation on the battery.

[0013] According to another aspect of the present invention, a battery vacuum sealing device is also provided, including the battery vacuum clamp described above.

[0014] Furthermore, the battery vacuum sealing device also includes a vacuum pumping component, which is connected to the second accommodating cavity and is used to perform vacuum pumping operations.

[0015] Furthermore, the battery vacuum sealing device also includes a drive mechanism, and the battery vacuum clamp also includes a puncture member, which is disposed on the side wall of the second receiving section and drivenly connected to the drive mechanism, for puncturing the airbag bag under the drive of the drive mechanism.

[0016] The present invention provides a battery degassing clamp comprising a first accommodating section, a transition section, and a second accommodating section connected sequentially. The first accommodating section is vertically arranged and has a first accommodating cavity for accommodating the battery. The second accommodating section is horizontally arranged and has a second accommodating cavity for accommodating at least a portion of the battery's airbag. By vertically arranging the first accommodating section and accommodating the battery within it, the battery is placed vertically, effectively controlling electrolyte loss, reducing electrolyte loss, improving electrolyte utilization, and thus enhancing battery performance. This solves the problem of significant electrolyte loss during battery degassing and forming in related technologies. Furthermore, by horizontally arranging the second accommodating section and accommodating the airbag within it, electrolyte leakage from the airbag and contamination of the battery can be prevented, ensuring battery safety. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of a battery vacuum clamp according to a specific embodiment of the present invention is shown.

[0019] The above figures include the following reference numerals:

[0020] 10. First accommodating section; 11. First accommodating cavity; 20. Transition section; 30. Second accommodating section; 31. Second accommodating cavity; 40. Battery; 50. Airbag; 51. Airbag body; 52. Connecting section; 60. Puncture piece; 70. Secondary sealing cap. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0024] To address the issue of significant liquid loss during battery vacuuming and molding in related technologies, this invention provides a battery vacuuming fixture and a battery vacuuming and sealing device. The battery vacuuming and sealing device includes the battery vacuuming fixture described below.

[0025] like Figure 1 As shown, the battery vacuum clamp includes a first receiving section 10, a transition section 20, and a second receiving section 30 connected in sequence. The first receiving section 10 is vertically arranged and has a first receiving cavity 11 for receiving the battery 40. The second receiving section 30 is horizontally arranged and has a second receiving cavity 31 for receiving at least a portion of the airbag 50 of the battery 40.

[0026] By configuring a battery vacuum clamp comprising a first accommodating section 10, a transition section 20, and a second accommodating section 30 connected sequentially, the first accommodating section 10 is vertically arranged and has a first accommodating cavity 11 for accommodating the battery 40, and the second accommodating section 30 is horizontally arranged and has a second accommodating cavity 31 for accommodating at least a portion of the airbag 50 of the battery 40, the battery 40 is placed vertically by vertically arranging the first accommodating section 10 and accommodating it, thereby effectively controlling electrolyte loss, reducing electrolyte loss, improving electrolyte utilization, and thus improving battery performance. Furthermore, by horizontally arranging the second accommodating section 30 and accommodating the airbag 50, the electrolyte inside the airbag 50 can be prevented from flowing out and contaminating the battery 40, ensuring the safety of the battery 40.

[0027] It is understood that the battery vacuum clamp in this embodiment is generally L-shaped, with the transition section 20 being a bent section used to connect and separate the first accommodating section 10 and the second accommodating section 30. That is, the first accommodating section 10 and the second accommodating section 30 are arranged perpendicularly. By separating the second accommodating section 30 from the first accommodating section 10 through the above arrangement, the electrolyte in the airbag 50 located in the second accommodating cavity 31 of the second accommodating section 30 will be stored in the second accommodating cavity 31 even if it flows out, and will not flow into the first accommodating cavity 11, thereby avoiding contamination of the battery 40 and ensuring the safety of the battery 40.

[0028] In this embodiment, the cross-sectional area of ​​the second accommodating cavity 31 is larger than the cross-sectional area of ​​the transition section 20 and the cross-sectional area of ​​the first accommodating section 10. It is understood that the second accommodating cavity 31 is an air extraction cavity and is used to accommodate the main body of the airbag 50, therefore it needs to have a large space.

[0029] Furthermore, the connection between the transition section 20 and the second accommodating section 30 is at a certain height from the bottom end of the second accommodating section 30. Specifically, in this embodiment, the transition section 20 and the second accommodating section 30 are connected at their midpoints along the height direction. This ensures that there is a certain height between the transition section 20 and the bottom of the second accommodating cavity 31, further preventing the electrolyte in the airbag 50 from entering the transition section 20 and flowing into the first accommodating cavity 11, thus contaminating the battery 40.

[0030] In this embodiment, as Figure 1As shown, the airbag 50 includes an airbag body 51 and a connecting section 52. The airbag body 51 is horizontally housed within the second receiving cavity 31. The connecting section 52 is located within the inner cavity of the transition section 20 and is connected to both the airbag body 51 and the battery 40. It is understood that the transition section 20 also has an inner cavity in the same direction of extension, so that the first receiving cavity 11 and the second receiving cavity 31 communicate. The main body of the airbag 50, i.e., the airbag body 51, is located within the second receiving cavity 31, and the connecting section 52 has a smaller diameter for passing through the inner cavity of the transition section 20 and connecting to the battery 40 within the first receiving cavity 11.

[0031] In this embodiment, as Figure 1 As shown, the battery vacuum clamp also includes a puncture member 60, which is movably disposed on the side wall of the second receiving section 30 and is used to puncture the airbag bag 50.

[0032] Specifically, the piercing element 60 can be a bayonet. The piercing element 60 has an optimized angle and position to minimize electrolyte loss while penetrating the airbag 50 for degassing. The piercing element 60 includes, but is not limited to, a blade with a bevel and a drip-proof design.

[0033] In this embodiment, the second receiving section 30 has a clearance opening that communicates with the second receiving cavity 31 to allow the piercing member 60 to pass through. Specifically, the clearance opening is adapted to the shape of the piercing member 60, so that the piercing member 60 passes through the clearance opening and enters the second receiving cavity 31 with a good sealing effect.

[0034] Furthermore, in order to ensure the puncturing effect of the puncturing component 60 and the subsequent air extraction effect, there are multiple puncturing components 60, which are spaced apart.

[0035] In this embodiment, as Figure 1 As shown, the battery vacuum clamp also includes a secondary encapsulation head 70, which is located at one end of the first accommodating section 10 near the transition section 20, and is used to perform secondary encapsulation on the battery 40.

[0036] In this embodiment, the battery vacuum clamp is made of corrosion-resistant and high-temperature-resistant materials to ensure equipment stability and electrolyte retention during the vacuuming and secondary packaging processes.

[0037] In this embodiment, the airbag 50 is made of a material with high gas permeability and low electrolyte permeability. This material selection ensures that gas can be quickly discharged while the electrolyte is effectively retained, avoiding electrolyte waste and potential environmental pollution.

[0038] In this embodiment, the battery vacuum clamp is a detachable structure. Specifically, before vacuuming, the upper part of the transition section 20 and the second accommodating section 30 is a detachable top cover, and the remaining part is a bottom shell, so that the battery 40 and the airbag 50 are respectively placed into the first accommodating cavity 11 and the second accommodating cavity 31. After the top cover and the bottom shell are fastened together, the puncture and vacuuming operation is performed.

[0039] This application also provides a battery vacuum sealing device, including the battery vacuum clamp described above.

[0040] In this embodiment, the battery vacuum sealing device further includes a vacuum pumping component, which is connected to the second accommodating cavity 31 and is used to perform vacuum pumping operations.

[0041] In this embodiment, the battery vacuum sealing device further includes a driving mechanism, and the puncturing member 60 is drivenly connected to the driving mechanism to puncture the airbag bag 50 under the drive of the driving mechanism.

[0042] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: By setting the battery vacuum clamp to include a first accommodating section 10, a transition section 20, and a second accommodating section 30 connected in sequence, the first accommodating section 10 is vertically arranged and has a first accommodating cavity 11 for accommodating the battery 40, and the second accommodating section 30 is horizontally arranged and has a second accommodating cavity 31 for accommodating at least a portion of the airbag 50 of the battery 40, by setting the first accommodating section 10 vertically and accommodating the battery 40 inside, the battery 40 is placed vertically, thereby effectively controlling the loss of electrolyte, effectively reducing the amount of electrolyte loss in the battery, improving the electrolyte utilization rate, and thus improving the performance of the battery; furthermore, by setting the second accommodating section 30 horizontally and accommodating the airbag 50 inside, the electrolyte in the airbag 50 can be prevented from flowing out and contaminating the battery 40, ensuring the safety of the battery 40.

[0043] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pump-out fixture, characterized by, The battery air extraction jig comprises a first accommodating section (10), a transition section (20) and a second accommodating section (30) connected in sequence, the first accommodating section (10) is vertically arranged and has a first accommodating cavity (11) for accommodating a battery (40), the second accommodating section (30) is horizontally arranged and has a second accommodating cavity (31) for accommodating at least a part of an airbag bag (50) of the battery (40).

2. The battery air bleeding fixture of claim 1, wherein, The battery air extraction jig further comprises a piercing member (60) movably arranged on a side wall of the second accommodating section (30) for piercing the airbag bag (50).

3. The battery air bleeding fixture of claim 2, wherein, The second accommodating section (30) is provided with an avoiding opening which is in communication with the second accommodating cavity (31) for avoiding the piercing member (60).

4. The battery air bleeding fixture of claim 2, wherein, The piercing member (60) is in plurality and is arranged at intervals.

5. The battery air bleeding fixture of claim 1, wherein, The cross-sectional area of the second accommodating cavity (31) is greater than the cross-sectional area of the transition section (20) and the cross-sectional area of the first accommodating section (10).

6. The battery air bleeding fixture of claim 1, wherein, The airbag bag (50) comprises an airbag bag body (51) and a connecting section (52), the airbag bag body (51) is horizontally accommodated in the second accommodating cavity (31), and the connecting section (52) is located in the inner cavity of the transition section (20) and is connected with the airbag bag body (51) and the battery (40) respectively.

7. The battery air bleeding fixture of claim 1, wherein, The battery air extraction jig further comprises a secondary packaging head (70) arranged at one end of the first accommodating section (10) close to the transition section (20) for secondary packaging of the battery (40).

8. A battery gas extraction packaging device, characterized by, The battery air extraction jig comprises the battery air extraction jig according to any one of claims 1 to 7.

9. The battery gas extraction packaging apparatus of claim 8, wherein, The battery air extraction packaging device further comprises a vacuum air extraction assembly which is in communication with the second accommodating cavity (31) for performing a vacuum air extraction operation.

10. The battery gas extraction packaging apparatus of claim 8, wherein, The battery air extraction packaging device further comprises a driving mechanism, and the battery air extraction jig further comprises a piercing member (60) arranged on a side wall of the second accommodating section (30) and drivingly connected with the driving mechanism for piercing the airbag bag (50) under the driving of the driving mechanism.

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