Universal soft package battery in-situ gas production test mold

Abstract

The utility model provides a universal soft package battery in-situ gas production test mold which comprises a mold base, a soft package battery is arranged on the mold base, a positive tab and a negative tab are arranged on the soft package battery, the top of the mold base is fixedly connected with lower substrates which are symmetrically distributed, an upper substrate is arranged above the lower substrates, first threaded holes which are symmetrically distributed are formed in the upper substrate, and first threaded holes which are symmetrically distributed are formed in the first threaded holes. Second threaded holes which are symmetrically distributed are formed in the lower base plate, the first threaded holes communicate with the second threaded holes, and fixing bolts are jointly connected into the first threaded holes and the second threaded holes in a threaded mode. According to the application, the elongated sandwich substrate structure can ensure that the tabs of the soft package battery slide freely in the elongated sandwich substrate structure and keep good contact with an external circuit, so that the sandwich type tab anchoring design can adapt to the soft package batteries with different tab distances, and is higher in fitness, wider in application range and more suitable for popularization and application; the practicability is enhanced, and the application prospect is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of gas production testing for soft-pack batteries, and more specifically, to a universal in-situ gas production testing mold for soft-pack batteries. Background Art

[0002] The safety and reliability of battery technology are crucial for its wide application in electric vehicles and energy storage systems. During the use of batteries, various gases are generated inside them, and the components of these gases can directly reflect the working state and health of the batteries. By analyzing the components of these gases in detail, we can not only deeply understand the specific working conditions inside the batteries but also predict the performance degradation and potential safety hazards of the batteries, which has important guiding significance for the design, management, and long-term stable operation of the batteries. Currently, the mold used in combination with DEMS for testing soft-pack batteries adopts a screw-type ear anchoring method and connects the soft-pack battery to the external circuit through the internal circuit of the mold to achieve in-situ detection of the gas production components during the charge and discharge process of the battery by DEMS. However, the existing technology has the following deficiencies when in use:

[0003] Most molds can only test soft-pack batteries with specific ear spacings. When the ear spacing of the soft-pack battery is too large or too small, it is easy to cause the ears of the soft-pack battery to break.

[0004] Therefore, there is an urgent need for a universal in-situ gas production testing mold for soft-pack batteries to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to address the problem that most existing molds can only test soft-pack batteries with specific ear spacings, and when the ear spacing of the soft-pack battery is too large or too small, it is easy to cause the ears of the soft-pack battery to break.

[0006] To achieve the above-mentioned invention purpose, the utility model provides the following technical solutions:

[0007] A universal in-situ gas production testing mold for soft-pack batteries to improve the above problems.

[0008] Specifically, this application is as follows:

[0009] A universal in-situ gas production testing mold for soft-pack batteries includes a mold base. A soft-pack battery is provided on the mold base. The soft-pack battery is provided with a positive ear and a negative ear. Symmetrically distributed lower substrates are fixedly connected to the top of the mold base. An upper substrate is provided above the lower substrates. Symmetrically distributed first threaded holes are opened on the upper substrate, and symmetrically distributed second threaded holes are opened on the lower substrates. The first threaded holes are communicated with the second threaded holes, and fixing bolts are commonly threadedly connected in the first threaded holes and the second threaded holes.

[0010] As a preferred technical solution of the present application, ear placement grooves are provided at the bottoms of both of the upper substrates, and the positive ear and the negative ear are respectively placed in the two ear placement grooves.

[0011] As a preferred technical solution of the present application, a carrier gas inlet is provided on the mold base.

[0012] As a preferred technical solution of the present application, a carrier gas outlet is provided on the mold base.

[0013] As a preferred technical solution of the present application, a top seat is provided on the top of the mold base, and a plurality of equally spaced pinhole air outlets are provided on the soft-pack battery.

[0014] As a preferred technical solution of the present application, the outer package of the soft-pack battery is an aluminum-plastic film.

[0015] As a preferred technical solution of the present application, both the lower substrate and the upper substrate are stainless steel plates.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the solution of the present application:

[0018] Through the provided upper substrate, lower substrate, first threaded hole, second threaded hole and fixing bolt, the lower substrate on the mold base is connected to the wire in the mold and serves as the positive and negative electrodes to connect to the external circuit. In order to prevent air leakage in the mold, the wire connecting the inside and outside of the mold and the mold are sealed with vacuum glue. The two upper substrates can be freely disassembled, and the upper substrate and the lower substrate are reinforced by two fixing bolts to ensure that the ear can be clamped between the upper substrate and the lower substrate, enabling the soft-pack battery to be connected to the external circuit. This long-strip sandwich substrate structure can ensure that the ears of the soft-pack battery can slide freely therein and maintain good contact with the external circuit. Therefore, this sandwich-type ear anchoring design can adapt to soft-pack batteries with different ear spacings, solving the problem in the prior art that most molds can only test soft-pack batteries with specific ear spacings, and when the ear spacing of the soft-pack battery is too large or too small, it is easy to cause the ears of the soft-pack battery to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is an overall structural schematic diagram of a general soft-pack battery in-situ gas generation test mold provided by the present application.

[0020] Figure 2 FIG. is an exploded structural schematic diagram of a general soft-pack battery in-situ gas generation test mold provided by the present application.

[0021] Figure 3 FIG. is an exploded structural schematic diagram of a general soft-pack battery in-situ gas generation test mold provided by the present application.

[0022] Figure 4 This is a schematic structural diagram of the upper substrate in a universal soft-pack battery in-situ gas generation test mold provided for this application.

[0023] Labels in the figure:

[0024] 1. Mold base; 2. Soft-pack battery; 3. Positive tab; 4. Negative tab; 5. Lower substrate; 6. Upper substrate; 7. First threaded hole; 8. Second threaded hole; 9. Fixing bolt; 10. Tab placement groove; 11. Carrier gas inlet; 12. Carrier gas outlet; 13. Top seat; 14. Pinhole gas outlet. Specific embodiments

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0026] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model to be protected, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the inventive product is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, terms such as "first" and "second" are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0030] Embodiment:

[0031] As Figures 1-4As shown in the figure, a general in-situ gas generation test mold for soft-pack batteries proposed in this embodiment includes a mold base 1. A soft-pack battery 2 is provided on the mold base 1. A positive tab 3 and a negative tab 4 are provided on the soft-pack battery 2. Symmetrically distributed lower substrates 5 are fixedly connected to the top of the mold base 1. An upper substrate 6 is provided above the lower substrates 5. Symmetrically distributed first threaded holes 7 are opened on the upper substrate 6. Symmetrically distributed second threaded holes 8 are opened on the lower substrates 5. The first threaded holes 7 communicate with the second threaded holes 8. A fixing bolt 9 is commonly threadedly connected in the first threaded holes 7 and the second threaded holes 8. By screwing the fixing bolt 9 and threadedly inserting it into the first threaded holes 7 and the second threaded holes 8, the upper substrate 6 is fixed to ensure that the upper substrate 6 and the lower substrates 5 can clamp the tabs, enabling the soft-pack battery 2 to be connected to the external circuit.

[0032] As Figure 2 and Figure 4 shown in the figure, ear placement grooves 10 are opened at the bottoms of both upper substrates 6. The positive tab 3 and the negative tab 4 are respectively placed in the two ear placement grooves 10. By reversely screwing the fixing bolt 9, the positive tab 3 and the negative tab 4 on the soft-pack battery 2 can slide in the ear placement grooves 10 and maintain good contact with the external circuit. Therefore, this sandwich-style tab anchoring design can adapt to soft-pack batteries 2 with different tab spacings, and has a wider application range.

[0033] As Figure 1 shown in the figure, a carrier gas inlet 11 is opened on the mold base 1.

[0034] As Figure 2 shown in the figure, a carrier gas outlet 12 is opened on the mold base 1.

[0035] As Figure 1 and Figure 2 shown in the figure, a top seat 13 is provided on the top of the mold base 1. A plurality of equally spaced pinhole gas outlets 14 are opened on the soft-pack battery 2.

[0036] As Figure 2 shown in the figure, the outer package of the soft-pack battery 2 is an aluminum-plastic film.

[0037] As Figure 3 shown in the figure, both the lower substrates 5 and the upper substrate 6 are made of stainless steel plates to ensure the use effects of the lower substrates 5 and the upper substrate 6.

[0038] Specifically, when the general soft-pack battery in-situ gas generation test mold of the present invention is in use: Place the soft-pack battery 2 on the mold base 1, place the two upper substrates 6 on the lower substrate 5, and place the positive tab 3 and the negative tab 4 in the two tab placement grooves 10 respectively. Turn the fixing bolt 9 and threadedly insert it into the first threaded hole 7 and the second threaded hole 8 to fix the upper substrate 6, ensuring that the upper substrate 6 and the lower substrate 5 can clamp the tabs, so that the soft-pack battery 2 is connected to the external circuit. Reverse-turn the fixing bolt 9, and the positive tab 3 and the negative tab 4 on the soft-pack battery 2 can slide in the tab placement grooves 10 and maintain good contact with the external circuit. Therefore, this sandwich-type tab anchoring design can adapt to soft-pack batteries 2 with different tab spacings, and has a wider application range.

[0039] The above embodiments are only used to illustrate the present invention and do not limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.

Claims

1. A universal soft-pack battery in-situ gas generation test mold, comprising a mold base (1), characterized in that: The mold base (1) is provided with a soft-pack battery (2), and the soft-pack battery (2) is provided with a positive electrode ear (3) and a negative electrode ear (4). A symmetrically distributed lower substrate (5) is fixedly connected to the top of the mold base (1), and an upper substrate (6) is provided above the lower substrate (5). The upper substrate (6) is provided with symmetrically distributed first threaded holes (7), and the lower substrate (5) is provided with symmetrically distributed second threaded holes (8). The first threaded hole (7) is connected to the second threaded hole (8), and a fixing bolt (9) is threadedly connected to the first threaded hole (7) and the second threaded hole (8).

2. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: The bottoms of the two upper substrates (6) are each provided with a tab placement groove (10), and the positive tab (3) and the negative tab (4) are respectively placed in the two tab placement grooves (10).

3. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: The mold base (1) is provided with a carrier gas inlet (11).

4. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: The mold base (1) is provided with a carrier gas outlet (12).

5. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: A top seat (13) is provided on the top of the mold base (1), and a plurality of equally spaced pinhole air outlets (14) are provided on the soft-pack battery (2).

6. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: The outer packaging of the soft-pack battery (2) is an aluminum-plastic film.

7. A universal soft-pack battery in-situ gas generation test mold according to claim 1, characterized in that: The lower base plate (5) and the upper base plate (6) are both made of stainless steel plates.

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