CN214672898U

CN214672898U - Battery structure for injecting liquid from end part of pole

Info

Publication number: CN214672898U
Application number: CN202120519855.0U
Authority: CN
Inventors: 陈海峰
Original assignee: Guizhou Zhongruifengtai New Energy Technology Co Ltd
Current assignee: Guizhou Zhongruifengtai New Energy Technology Co Ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-09
Anticipated expiration: 2031-03-15

Abstract

The utility model relates to a battery structure of liquid injection from the end part of a pole, wherein the surface of a battery shell is only provided with a hole site for assembling an electrode column at the central position of the upper surface of the battery shell, the battery structure comprises the electrode column, a liquid injection hole penetrating through the upper surface and the lower surface of the electrode column is reserved on the battery shell, a conical port is arranged at the upper end of the liquid injection hole, and electrolyte is injected into a cavity inside the battery shell from top to bottom through the liquid injection hole, so that the electrolyte is directly dispersed and guided to each area of the surface of an electric core through the middle space area of the electric core by the liquid injection hole; the conical sealing component is arranged at the conical port and enables the liquid injection hole to be closed. The utility model discloses only utilize the electrode column to dispose and annotate the liquid hole and annotate liquid to the space that utilizes inside electric core central point to put the department improves the smoothness nature of battery notes liquid operation and ensures the abundant infiltration of electric core, and can not influence the stability and the leakproofness of battery self structure.

Description

Battery structure for injecting liquid from end part of pole

Technical Field

The utility model relates to the technical field of batteries, especially, relate to a battery structure from liquid is annotated to utmost point post tip.

Background

At present, the common battery liquid injection methods are mainly classified into two types, one is to inject liquid directly through a liquid injection hole, which is also the most mainstream method, and the other is to put the battery into the electrolyte to allow the electrolyte to permeate into the battery. The utility model discloses technical scheme's research personnel to in the past the battery of the same kind annotate liquid technique discover after analyzing, in the past the battery annotate liquid technique receive its annotate liquid mode, annotate the influence of factors such as the liquid concrete position, the sealed means of annotating liquid position department and electric core infiltration degree, and can't gain the notes liquid effect of ideal, concrete analysis as follows:

firstly, most manufacturers inject electrolyte into a battery at present, most of the electrolyte is injected downwards through an opening on the upper surface of the battery or injected upwards through an opening on the lower surface of the battery, so that two hole sites are formed on the upper surface or the lower surface of the battery, one hole site is used for injecting the electrolyte, the other hole site is used for leading out an electrode, and the upper surface of a battery shell needs to be respectively provided with two sets of mutually unrelated sealing structures aiming at the two hole sites, which is extremely unfavorable in terms of processing cost, operation difficulty, structural stability in the application process of the battery and the like, and actually, the self sealing performance of the battery is damaged;

secondly, even if a plurality of manufacturers adopt a mode of directly injecting liquid from the liquid injection hole from the upper part and respectively apply sealing structures for convenient operation, the battery core inside the battery cannot be fully soaked, and even electrolyte waste can be caused;

thirdly, tests at different stages show that if a liquid injection hole is formed in the lower surface of the battery or the upper surface of the battery, corresponding optimization is needed to relieve or solve the problem that electrolyte is easy to flow out;

fourthly, for the processing operation of the battery, the processing operation is often used to be concentrated on one side (namely the upper surface or the lower surface of the battery shell), and if the processing operation can be concentrated on one side of the electrode column and the liquid injection is carried out by utilizing the electrode column, the processing operation is completely beneficial to reducing the application cost of equipment and improving the fluency of the liquid injection operation.

Therefore, the technical means adopted by the current battery liquid injection is not suitable for adopting a liquid injection mode of independently taking out the battery core for liquid injection, but also is not suitable for adopting a mode of randomly configuring liquid injection holes at any positions of the upper surface and the lower surface of the battery for liquid injection.

The utility model discloses technical scheme's research and development personnel reachs through the feasibility analysis of above to several kinds of batteries liquid injection mode commonly used at present, how under the prerequisite that does not influence battery self structural stability, in electrode column with the battery surface reasonable setting of one side annotate the liquid hole and ensure that electric core obtains sufficient infiltration in smooth and easy notes liquid in-process, be the technical problem who waits to solve at present urgently, through the argument to different technological means, research and development personnel confirm to need to use rational design battery self structure as the prerequisite, arrange corresponding technological means.

Synthesize above discussion, the utility model discloses just on current conventional technology's basis, combine the practical application experience, propose further optimization to the notes liquid technical means of battery technical field, only utilize battery electrode post configuration to annotate the liquid hole and annotate the liquid, through the space of utilizing inside electric core central point department ingeniously and cooperate corresponding water conservancy diversion structure, improve the smoothness nature of battery notes liquid operation and ensure the abundant infiltration of electric core, and can not influence the stability and the leakproofness of battery self structure. Therefore, the technical scheme that proposes can alleviate, partially solve or solve the problem that prior art exists completely, simultaneously the utility model provides a technical scheme is also in order to satisfy the battery and annotate the application demand in liquid technical field.

SUMMERY OF THE UTILITY MODEL

For overcoming above-mentioned problem or at least partially solve or slowly subtract and solve above-mentioned problem, the utility model provides a battery structure of annotating liquid from utmost point post tip and the battery liquid injection method that forms according to this battery structural design, it need not to locate additional trompil in battery shell surface optional position, but only utilizes the electrode post to dispose and annotate the liquid hole and annotate the liquid to through the space of utilizing inside electric core central point department ingeniously and cooperate corresponding water conservancy diversion structure, improve the smoothness nature of battery liquid injection operation and ensure the abundant infiltration of electric core, and can not influence the stability and the leakproofness of battery self structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a from battery structure of utmost point post tip notes liquid, its battery case is inside to be set up to be used for assembling electric core and the well plenum chamber of splendid attire electrolyte, and battery case surface only sets up the hole site that is used for assembling the electrode post in its upper surface central point department of putting, and this battery structure includes:

the battery cell is horizontally arranged in the battery shell, and the central position of the battery cell is provided with a middle space area;

the electrode column is provided with a liquid injection hole penetrating through the upper surface and the lower surface, a conical port is arranged at the upper end of the liquid injection hole, and electrolyte is injected into the cavity inside the battery shell from top to bottom through the liquid injection hole, so that the electrolyte is directly dispersed and guided to each area on the surface of the battery core from the liquid injection hole through the middle space area of the battery core, and the surface of the battery core is fully soaked;

and the sealing component is arranged at the conical port and closes the liquid injection hole.

For the above technical solutions, the skilled person can also adopt appropriate technical means to further supplement or define in combination with the actual application situation, including the following:

the battery case is not provided with any hole sites other than the hole sites for assembling the electrode posts; and the electrolyte after the cell infiltration is dispersed and gushed to the space area of the outer edge of the cell.

Accordingly, the seal assembly comprises a tapered metal assembly.

Accordingly, the skilled person will also be able to select the suitability of the assembly, for example, the conical seal assembly may be a nickel or aluminium metal assembly, with a metal ring fitted around the periphery of the electrode column.

The metal ring is tightly attached to the top surface of the battery shell, an insulating layer is arranged in a gap between the electrode column and the metal ring, and the insulating layer can be a glass layer.

In addition, the electrode column can also adopt a molybdenum or copper metal component, and the battery core can also be fixedly assembled on a support at the bottom surface of the battery shell.

The utility model discloses the battery structure of implementing need not to locate in battery shell surface optional position and trompil separately, but only utilize the electrode post to dispose and annotate the liquid hole and annotate liquid, and through the space of utilizing inside electric core central point to locate ingeniously and cooperate corresponding water conservancy diversion structure, improve the smoothness nature of battery notes liquid operation and ensure the abundant infiltration of electric core, and can not influence the stability and the leakproofness of battery self structure, compare and take out the electric core alone in the past and annotate the liquid mode or by the liquid mode of annotating of the trompil separately of battery surface, can embody obvious superiority.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic view of the battery structure with liquid injected from the end of the post according to the present invention;

fig. 2 is a schematic top view of a battery structure for injecting liquid from the end of a post in accordance with the present invention;

FIG. 3 is a schematic sectional view taken along the line A-A of FIG. 2;

fig. 4 is a schematic diagram of a battery structure with liquid injected from the end of the terminal, which can be implemented in a specific internal structure of a battery case;

FIG. 5 is an enlarged schematic view of portion 4A of FIG. 4;

fig. 6 is a schematic view of a battery structure for injecting liquid from the end of a pole, in which the present invention is implemented, and its internal support;

fig. 7 is a schematic diagram of a battery structure for injecting liquid from the end of a terminal according to the present invention, with a partially exploded assembly.

In the figure:

1. a battery case;

2. an electric core;

3. a metal ring;

4. an insulating layer;

5. an electrode column;

6. a liquid injection hole;

7. a support assembly;

8. a first diversion support;

9. a second diversion support;

10. a mid-space region;

11. a lateral space region;

12. a conical seal assembly.

Detailed Description

The utility model discloses the battery structure of annotating liquid from utmost point post tip of planning to implement, the aim at that the technical means of implementing will reach solves in the past battery and annotates the liquid operation because of taking out electric core alone and annotating the liquid, or annotate the liquid hole by battery shell surface random configuration and annotate the liquid, and lead to can't improving the smoothness nature of battery notes liquid operation and the abundant infiltration of electric core on the basis of ensureing battery self sealing stability.

The utility model discloses the technical scheme who implements, it adds the notes liquid hole from top to bottom and assists the toper seal assembly mainly to utilize electric pole, recycles the regional cavity in electric core center and guides and make the electrolyte of pouring into implement evenly, fully soak to electric core, promotes the smoothness nature that the battery annotated the liquid operation simultaneously, in fact, has also formed the battery structure of an optimization simultaneously according to this notes liquid technological means. However, besides these structures, because the battery type range that the technical solution of the present invention relates to is wide, it is not convenient for the battery casing, electrode column and other components to limit their specific size, model and material in detail, and all the batteries (especially metal-packaged batteries) that the liquid injection structure of the present invention can be applied to can be easily implemented by the technical means implemented by the technical personnel according to the present invention. Therefore, including the material of battery size, model, material, utmost point post, the position that utmost point ear set up etc. these all belong to the conventional technical means in this field, and to not being the utility model discloses these conventional technical means within the technical scheme scope, the utility model discloses concrete embodiment need not all refine out every detail, and it is unrealistic if will all list out. Obviously, the utility model discloses the technical scheme who implements is actually a battery structure that can let the reference of field technicians combine conventional technical means and implement from utmost point post tip notes liquid, and technical staff carries out practical application and test according to different application condition and user demand according to the utility model discloses the product that technical scheme formed can actually obtain a series of advantages that it brought, and these advantages will gradually embody in following the analysis to the structure.

Example one

As shown in fig. 1, fig. 2, fig. 3, fig. 5, and fig. 7, the battery structure for injecting liquid from the terminal of the electrode post according to the present invention includes a battery case 1 having a cylindrical structure, the interior of the battery case 1 is hollow so as to be used for assembling the battery cell 2 and containing the injected electrolyte, an electrode post 5 with a reserved through hole is disposed at the center of the battery cell 2, the top of the battery case 1 is provided with an opening, so that the electrode post 5 can pass through the battery case 1 from bottom to top and extend to the outside of the battery case 1, wherein the opening is also used for installing an annular metal ring 3 capable of sealing and fixing the assembled battery cell 2, the metal ring 3 is tightly attached to the top of the battery case 1 and an annular insulating layer 4 is installed in a gap between the electrode post 5 and the metal ring 3, the above implemented structure forms the basic portion of the battery structure, the research and development personnel of the technical scheme in the field further implement corresponding technical means based on the basic part, and the specific steps are as follows:

the reserved through holes of the electrode posts 5 are provided as the liquid injection holes 6, and the liquid injection holes 6 are positioned at the central positions of the electrode posts 5 and penetrate through the upper and lower bottom surfaces of the whole electrode posts 5, so that the liquid injection operation can be performed on the interior of the battery shell 1 from outside to inside through the liquid injection holes 6 without additionally opening any position on the surface of the battery shell 1, and the original sealing performance and structural stability of the battery shell 1 are directly ensured;

correspondingly, because the existing battery cores 2 are all provided with the middle space area 10, the lower part of the liquid injection hole 6 can be directly opposite to the position of the middle space area 10, so that the injected electrolyte is directly dispersed to each area on the surface of the battery core 2 from the liquid injection hole 6 through the middle space area 10 of the internal battery core 2, and the smoothness of the battery liquid injection operation and the sufficient infiltration of the battery core 2 are ensured;

furthermore, the liquid injection hole 6 left in the electrode column 5 can be designed into a conical structure according to the corresponding sealing design requirements, that is, the hole wall of the upper end part of the liquid injection hole 6 has a certain taper, and the hole diameters are gradually decreased from top to bottom, meanwhile, a corresponding conical sealing component 12 is additionally configured according to the shape of the hole wall of the end part, electrolyte can be injected into the cavity inside the battery shell 1 from top to bottom through the liquid injection hole 6 in the state that the conical sealing component 12 is taken out, and due to the existence of the taper, compared with the hole positions with consistent hole diameters and no taper in the prior art, the liquid outflow inside the battery shell 1 is favorably relieved or avoided in the state that the conical sealing component 12 is closed; in addition, the electrode column 5 is drilled with the liquid injection hole 6, which is also beneficial to directly leading out the conductor.

For each component to be implemented, the skilled person can make different choices according to different design requirements, for example, the electrode column 5 can be made of a metal component such as molybdenum or copper, the tapered sealing component 12 can be made of a metal component such as nickel or aluminum, and the insulating layer 4 can be made of a glass layer, but of course, other possible components are not described herein.

Above the utility model discloses the battery structure of annotating liquid from utmost point post tip implemented still can set up corresponding water conservancy diversion structure (or bottom surface support) in 2 bottoms of electric core for the stability of ensureing the battery liquid state to promote electrolyte to guide smoothly after annotating the liquid hole entering to disperse to other regions via the middle part space region 10 of electric core 2, to the structure and the mode that set up of concrete subassembly, can refer to following technological means.

Example two

As shown in fig. 4 and 6, the embodiment of the present invention provides a battery structure for injecting liquid from the terminal of the terminal, which is implemented by the second embodiment, and is implemented by the first embodiment, and the technical means can be supplemented and perfected, and the technical personnel can further implement corresponding technical means to form a corresponding technical solution, which specifically includes:

technical staff can add an annular supporting component 7 in 1 inner chamber bottom surface level of battery case, of course, can select the subassembly that does not have the influence to electric core 2 performance to the concrete material of supporting component 7, furthermore, 7 tops of the supporting component of implementing set up two-layer water conservancy diversion support, and be water conservancy diversion support one 8 from inside to outside in proper order, water conservancy diversion support two 9, the cross section of each water conservancy diversion support is the loop configuration, so that after putting into electric core 2, can make 2 levels of electric core be fixed in the top of two water conservancy diversion supports and be located in the surrounding of water conservancy diversion support two 9.

This embodiment two-way through the setting of above technical means, when annotating liquid, electrolyte is poured into from top to bottom by notes liquid hole 6 that electrode post 5 was reserved, earlier through the middle part spatial zone 10 of electric core 2 and guide to each region on electric core 2 surface, can let each region on electric core 2 surface fully soak gradually, then, make the electrolyte dispersion after electric core soaks again gush to electric core 2 periphery, and the lateral part spatial zone 11 position department between electric core 2 outward flange and the water conservancy diversion support two 9, it is visible, through addding two water conservancy diversion supports, can also play basic drainage effect, in addition, also can improve the degree of consistency that electric core 2 surface electrolyte soaks. Compare in the past by annotating the liquid hole with the random mode of directly pouring into casing inner space of electrolyte, the utility model discloses the technical means implemented can make 2 surperficial abundant soaks of electric core when pouring into.

Of course, when the electrolyte is injected, most of the electrolyte passes through the middle space region 10 of the battery cell 2, and a part of the electrolyte directly infiltrates the surface of other regions of the battery cell 2, but this does not affect the full infiltration of the whole battery cell 2.

Accordingly, as the selection criteria of the support component 7 are the same, for the selection of the flow guide support, the skilled person may adopt components that do not affect the application performance of the electric core 2, do not generate chemical reaction, and do not generate corrosion, and the selection of these components is a routine choice that can be performed by the skilled person according to the technical common knowledge thereof, and will not be described herein again.

In the description of the present application, the appearances of the phrases "embodiment one," "this embodiment," "specific implementation," and the like in this specification are intended to 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 invention or utility model. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

In the description of the present application, the terms "connect", "mount", "fix", "set", "have", etc. are used in a broad sense, for example, the term "connect" may be a fixed connection or an indirect connection through intermediate components without affecting the relationship and technical effects of the components, or may be an integral connection or a partial connection, as in this case, for a person skilled in the art, the specific meaning of the above terms in the present invention can be understood according to specific situations.

The foregoing description of the embodiments is provided to enable any person skilled in the art to make and use the embodiments, and it is to be understood that various modifications may be readily apparent to those skilled in the art, and that the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present disclosure is not limited to the above embodiments, and modifications to the following cases should be included within the scope of the present disclosure: firstly, based on the technical scheme of the utility model and combined with the new technical scheme implemented by the prior common general knowledge, the technical effect generated by the new technical scheme does not exceed the technical effect of the utility model, for example, the central position of the electrode column is adopted to add the liquid injection hole and lead the electrolyte through the middle area of the battery core, the formed technical scheme is used for the technical means of the liquid injection of various batteries, and the generated expected effect does not exceed the utility model; secondly, equivalent replacement of part of the characteristics of the technical scheme of the utility model by adopting the known technology, the generated technical effect is the same as the technical effect of the utility model, for example, equivalent replacement is carried out on the size of a battery shell or an electrode column, the model of an electric core, and the like; thirdly, the technical scheme of the utility model is expanded on the basis, and the essential content of the expanded technical scheme does not exceed the technical scheme of the utility model; and fourthly, the technical means obtained by utilizing the equivalent transformation made by the text record content of the utility model is applied to other related technical fields.

Claims

1. The utility model provides a from battery structure of utmost point post tip notes liquid, its battery case is inside to be set up to be used for assembling electric core and the well plenum chamber of splendid attire electrolyte, a serial communication port, battery case surface only sets up the hole site that is used for assembling the electrode post in its upper surface central point department, battery structure includes:

the battery cell is horizontally arranged in the battery shell, and a middle space area is arranged at the center of the battery cell;

the electrode column is provided with a liquid injection hole penetrating through the upper surface and the lower surface, a conical port is arranged at the upper end of the liquid injection hole, and electrolyte is injected into the cavity in the battery shell from top to bottom through the liquid injection hole, so that the electrolyte is directly dispersed and guided to each area on the surface of the battery core from the liquid injection hole through the middle space area of the battery core, and the surface of the battery core is fully soaked;

2. The battery structure of the self-terminal end injection according to claim 1, wherein: the battery case is no longer provided with any hole sites, except for the hole sites for assembling the electrode posts.

3. The battery structure of the self-terminal end injection according to claim 2, characterized in that: and the electrolyte after the cell infiltration is dispersed and gushed to the space area of the outer edge of the cell.

4. The battery structure for injecting liquid from the end of a pole according to any one of claims 1 to 3, wherein: the seal assembly includes a tapered metal assembly.

5. The battery structure for injecting liquid from the end of a pole according to any one of claims 1 to 3, wherein: the sealing component is a nickel or aluminum metal component.

6. The battery structure of the self-terminal end injection according to claim 1, wherein: and a metal ring is assembled on the periphery of the electrode column.

7. The battery structure of self-terminal end injection according to claim 6, wherein: the metal ring is tightly attached to the top surface of the battery shell, and an insulating layer is arranged in a gap between the electrode column and the metal ring.

8. The battery structure of self-terminal end injection according to claim 7, wherein: the insulating layer adopts a glass layer.

9. The battery structure of the self-terminal end injection according to claim 1, wherein: the electrode column adopts a molybdenum or copper metal component.

10. The battery structure of claim 1, wherein: the battery core is fixedly assembled on the support on the bottom surface of the battery shell.