CN220420655U

CN220420655U - Tray structure for battery opening formation and opening formation equipment

Info

Publication number: CN220420655U
Application number: CN202321663500.4U
Authority: CN
Inventors: 杨军辉; 周浩; 邵小龙; 李璐璐
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2024-01-30
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to the technical field of battery production, and particularly discloses a tray structure opening formation device for battery opening formation, wherein the tray structure for battery opening formation comprises: a tray member and a clamp assembly; the tray component is provided with a battery clamping groove for placing a battery; the fixture assembly is detachably connected with the tray component, a pole piece machining hole is formed in the action end of the fixture assembly, and the fixture assembly can straighten the bent battery pole piece by driving the action end of the fixture assembly to act; therefore, the distance between the electrode lug and the electrolyte can be pulled, the possibility that the electrode plate is contacted with the electrolyte is avoided, and the problem that safety accidents are caused by the contact of the electrolyte with the electrode lug and the probe due to the fact that bubbles generated in the battery are discharged upwards and the electrolyte is overflowed upwards when the battery is formed is avoided.

Description

Tray structure for battery opening formation and opening formation equipment

Technical Field

The utility model relates to the technical field of battery production, in particular to a tray structure for battery opening formation and opening formation equipment with the tray structure.

Background

In the field of batteries, cylindrical lithium ion batteries are environment-friendly batteries with large usage amount, so that the safety and reliability of the cylindrical lithium ion batteries are very important. Wherein the formation is a very important procedure for lithium ion battery production.

Battery formation refers to the process of primary charging of a battery cell, also known as primary charging or forming. In this process, the positive and negative electrode materials in the battery are charged and form electrochemical reaction, so that the chemical reaction system in the battery reaches a stable state to form an SEI film (solid electrolyte interface), thereby ensuring better performance of the battery in later use. Battery formation is a very important step in the battery manufacturing process, and is also one of the key steps in ensuring battery quality. Through the formation of the battery core, various materials and components in the battery can reach a more stable and uniform state, the unnecessary safety problem is avoided, meanwhile, the lithium battery is activated, and the cycle life of the battery is determined to a great extent by the formation effect.

At present, the opening formation of the lithium battery is mainly carried out in such a way that after the battery is filled with liquid, the aluminum tab is bent and then is contacted with the probe, so that certain safety risks exist in the operation, when the battery is formed, bubbles can be generated in the battery and discharged upwards, electrolyte can possibly be carried to overflow upwards, and the bending of the tab can possibly cause the electrolyte to contact with the tab and the probe to influence the formation effect, so that safety accidents are generated.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

To this end, an embodiment of one aspect of the present utility model proposes a tray structure for battery opening formation.

The embodiment of the other aspect of the utility model also provides an opening formation device, which has all the advantages of the tray structure.

A tray structure for battery opening formation according to an embodiment of the present utility model includes: a tray member and a clamp assembly; wherein,

the tray component is provided with a battery clamping groove for placing a battery; the fixture component is detachably connected with the tray component, a pole piece machining hole is formed in the action end of the fixture component, and the fixture component can straighten the bent battery pole piece by driving the action end of the fixture component to act.

In the scheme of the utility model, the bent battery pole piece can be straightened through the clamp assembly, so that the distance between the pole lug and the electrolyte can be pulled, the possibility of contact between the pole piece and the electrolyte is avoided, and the potential safety hazard is well solved.

In a preferred embodiment of the above-described tray structure for forming an opening of a battery, the tray member is provided with a jig engaging groove; the clamp assembly is provided with a clamping protrusion matched with the clamp clamping groove and is detachably connected with the clamp clamping groove.

In a preferred embodiment of the above tray structure for forming an opening of a battery, a plurality of the battery clamping grooves are provided on a top end surface of the tray member, and the plurality of battery clamping grooves are distributed in a grid shape.

In a preferred embodiment of the foregoing tray structure for forming an opening of a battery, the clamping grooves of the clamp are in a strip structure, and each row of the clamping grooves of the battery corresponds to one clamping groove of the clamp.

In a preferred embodiment of the above tray structure for battery opening formation, the jig assembly includes: the linear driving mechanism is connected with the base and the cap clamp; wherein,

the bottom of the connecting base is provided with the clamping protrusion, and the top of the connecting base is provided with a connecting clamping groove; the linear driving mechanism is arranged in the connecting clamping groove; one end of the cap clamp is connected with the action end of the linear driving mechanism and can reciprocate along the connecting clamping groove.

In the preferred embodiment of the tray structure for forming the battery opening, the connection base is of a long-strip-shaped U-shaped structure, the top of the connection base is a connection clamping groove, and the bottom of the connection base is a clamping protrusion.

In a preferred embodiment of the tray structure for forming the battery opening, the clamp clamping groove is a through groove with a dovetail-shaped cross section, and the clamping protrusion is a strip-shaped protrusion with a dovetail-shaped cross section; the clamping protrusion can penetrate into the clamping groove along one end of the clamping groove of the clamp.

In a preferred embodiment of the tray structure for forming an opening of a battery, the cap holder has a plate-like structure in cross section, and one end of the cap holder penetrates the connection slot and is connected to the operation end of the linear driving mechanism; the other end of the battery clamping groove is provided with a clamp plate extending towards the battery clamping groove, and the clamp plate is provided with a pole piece machining hole corresponding to the battery clamping groove.

In a preferred embodiment of the above-described tray structure for forming the battery opening, the bottom of the battery card slot penetrates the tray member for passing the negative electrode probe.

A battery opening formation apparatus according to an embodiment of the second aspect of the present utility model includes the above-described tray structure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a tray member in the tray structure for battery opening formation shown.

Fig. 2 is a cross-sectional view taken along the direction A-A shown in fig. 1.

Fig. 3 is a front view of the jig assembly in the tray structure for battery opening formation shown.

Fig. 4 is a sectional view in the direction B-B shown in fig. 3.

Fig. 5 is a top view of the clamp assembly shown in fig. 3.

Reference numerals:

1. a tray member; 10. a battery clamping groove; 11. a clamp slot; 20. machining holes of the pole pieces; 21. the clamping bulge; 22. the base is connected; 23. a linear driving mechanism; 24. a cap clamp; 240 clamp plate.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the prior art, the current lithium battery opening formation mainly adopts a mode that after the battery is injected with liquid, the aluminum tab is bent and then is contacted with the probe, so that certain safety risks exist in the operation, when the battery is formed, bubbles can be generated in the battery and discharged upwards, electrolyte can possibly be taken to overflow upwards, and safety accidents are caused by the fact that the electrolyte is contacted with the tab and the probe due to bending of the tab.

In order to improve the problem, the application provides a tray structure for battery opening formation, which can straighten a bent tab, and avoid the problem that safety accidents are caused by contact of electrolyte with the tab and a probe due to upward discharge of bubbles generated in a battery and upward overflow of electrolyte.

Referring to fig. 1 to 5, a tray structure for battery opening formation according to an embodiment of the present application includes: a tray member 1 and a clamp assembly; wherein,

the tray component 1 is provided with a battery clamping groove 10 for placing batteries; the fixture component is detachably connected with the tray component 1, a pole piece machining hole 20 is formed in the action end of the fixture component, and the fixture component can straighten the bent battery pole piece by driving the action end of the fixture component to act.

Specifically, the tray member 1 has a square structure.

In particular, the battery card slot 10 is adapted to fit a cylindrical lithium ion battery.

It should be understood that the scheme advantage is that can be through the battery pole piece of bending up of anchor clamps subassembly and straighten, just so can pull open the distance of utmost point ear with electrolyte, avoided the pole piece to contact with electrolyte's possibility, fine solution potential safety hazard.

In some embodiments, referring to fig. 1-2, the tray member 1 is provided with a clamp slot 11; the clamp assembly is provided with a clamping protrusion 21 which is matched with the clamp clamping groove 11 and is detachably connected with the clamp clamping groove.

In some embodiments, the top end surface of the tray member 1 is provided with a plurality of battery clamping grooves 10, and the plurality of battery clamping grooves 10 are distributed in a grid shape.

In some embodiments, the clamping grooves 11 are in a strip structure, and each row of the battery clamping grooves 10 corresponds to one clamping groove 11.

In some embodiments, referring to fig. 3-5, the clamp assembly includes: a connection base 22, a linear drive mechanism 23 and a cap clamp 24; wherein,

the bottom of the connecting base 22 is provided with the clamping protrusion 21, and the top of the connecting base is provided with a connecting clamping groove; the linear driving mechanism 23 is arranged in the connecting clamping groove; one end of the cap holder 24 is connected to the operating end of the linear driving mechanism 23 and is capable of reciprocating along the connecting groove.

Specifically, the linear driving mechanism 23 may be a mechanism such as a linear driving mechanism 23, an oil cylinder, or an electric telescopic rod, and is preferably a mechanism of the linear driving mechanism 23.

It should be appreciated that the linear drive mechanism 23 is capable of lifting and lowering the cap clamp 24.

In some embodiments, the connection base 22 has an elongated U-shaped structure, and has a connection slot at the top and a clamping protrusion 21 at the bottom.

In some embodiments, the clamp slot 11 is a through slot with a dovetail-shaped cross section, and the clamping protrusion 21 is a strip-shaped protrusion with a dovetail-shaped cross section; the clamping protrusion 21 can penetrate along one end of the clamping groove 11.

In some embodiments, the cap fixture 24 is a plate structure, and one end side wall of the plate structure penetrates into the connecting slot and is connected with the actuating end of the linear driving mechanism 23; the other end of the battery clamping groove 10 is provided with a clamp plate 240 extending towards the battery clamping groove 10, and the clamp plate is provided with a pole piece processing hole 20 corresponding to the battery clamping groove 10.

Specifically, the pole piece processing hole 20 is of a counter bore structure, and an opening is formed on one side.

In some embodiments, the bottom of the battery card slot 10 extends through the tray member 1 for the passage of a negative electrode probe.

It should be understood that the tray member 1 and the clamp assembly are assembled first, the linear driving mechanism 23 is placed into the connecting slot of the connecting base 22, then the cap clamp 24 is slidably connected with the connecting base 22, and the height of the cap clamp 24 is controlled by the linear driving mechanism 23, so as to ensure that the tab can be completely straightened.

After the tray mechanism is assembled, the cylindrical lithium ion battery welded with the cap can be placed in the battery clamping groove 10 of the tray component 1, then the lug is placed in the cap clamp 24, the height of the lug is adjusted through the linear driving mechanism 23, then the tray component 1 is placed in the opening formation cabinet, the negative electrode probe is connected with the steel shell through the bottom of the tray component 1, and the positive electrode probe is connected with the cap at the upper part, so that the opening formation can be safely performed.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A tray structure for forming an opening of a battery, comprising:

the tray component is provided with a battery clamping groove for placing a battery;

the fixture assembly is detachably connected with the tray component, a pole piece machining hole is formed in the action end of the fixture assembly, and the fixture assembly can straighten the bent battery pole piece by driving the action end of the fixture assembly to act.

2. The tray structure for battery opening formation according to claim 1, wherein the tray member is provided with a jig catching groove; the clamp assembly is provided with a clamping protrusion matched with the clamp clamping groove and is detachably connected with the clamp clamping groove.

3. The tray structure for forming an opening of a battery according to claim 2, wherein a top end surface of the tray member is provided with a plurality of the battery clamping grooves, and the plurality of the battery clamping grooves are distributed in a grid shape.

4. A tray structure for forming an opening of a battery according to claim 3, wherein the clamping grooves of the clamp are in a strip-shaped structure, and each row of the clamping grooves of the battery corresponds to one clamping groove of the clamp.

5. The tray structure for battery opening formation according to claim 2, wherein the jig assembly comprises:

the bottom of the connecting base is provided with the clamping protrusion, and the top of the connecting base is provided with a connecting clamping groove;

the linear driving mechanism is arranged in the connecting clamping groove;

and one end of the cap clamp is connected with the action end of the linear driving mechanism and can reciprocate along the connecting clamping groove.

6. The tray structure for forming a battery opening according to claim 5, wherein the connection base has a long-strip-shaped U-shaped structure, the top of which is a connection clamping groove, and the bottom of which is a clamping protrusion.

7. The tray structure for forming an opening of a battery according to claim 2, 4 or 6, wherein the clip groove is a through groove having a dovetail-shaped cross section, and the clip projection is a strip-shaped projection having a dovetail-shaped cross section; the clamping protrusion can penetrate into the clamping groove along one end of the clamping groove of the clamp.

8. The tray structure for forming an opening of a battery according to claim 5, wherein the cap holder has a plate-like structure in cross section, and one end of the cap holder penetrates the connection clip groove and is connected to the operation end of the linear driving mechanism; the other end of the battery clamping groove is provided with a clamp plate extending towards the battery clamping groove, and the clamp plate is provided with a pole piece machining hole corresponding to the battery clamping groove.

9. The tray structure for battery opening formation according to claim 1, wherein the bottom of the battery card slot penetrates the tray member for passage of the negative electrode probe.

10. A battery opening forming apparatus comprising a tray structure as claimed in any one of claims 1 to 9.