CN212514379U - Battery normal position testing arrangement - Google Patents
Battery normal position testing arrangement Download PDFInfo
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- CN212514379U CN212514379U CN202023247177.1U CN202023247177U CN212514379U CN 212514379 U CN212514379 U CN 212514379U CN 202023247177 U CN202023247177 U CN 202023247177U CN 212514379 U CN212514379 U CN 212514379U
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Abstract
The utility model discloses a battery in-situ testing device, which belongs to the technical field of battery production testing, and comprises conductive electrodes, wherein the conductive electrodes are oppositely arranged, electrolyte is dripped between the conductive electrodes, and one side, opposite to the conductive electrodes, of the conductive electrodes is positioned in the electrolyte; the two sides of the conductive electrode are symmetrically and sequentially provided with a sealing rubber ring and a glass cover plate; the sealing rubber ring is symmetrically assembled at two sides of the conductive electrode, one end of the conductive electrode opposite to the sealing rubber ring extends into the cavity in the sealing rubber ring, the electrolyte is positioned in the cavity of the sealing rubber ring, and the conductive electrode is contacted with the electrolyte. Can the formation process of dynamic observation dendrite at the negative pole through the electrolysis to the electrolyte, just the utility model discloses a battery normal position testing arrangement assembles the steadiness better, makes things convenient for people to use.
Description
Technical Field
The utility model belongs to the technical field of the battery production test, specifically speaking relates to a battery normal position testing arrangement.
Background
With the continuous progress of scientific technology, the application of the battery is gradually popularized, and in the use and charging process of the battery, a series of complex reactions can occur between an electrode and an electrolyte interface, so that heat generation, electrode peeling and non-uniform deposition of active substances are caused to form dendritic crystals, the internal structure of the battery is unstable, a large amount of heat generation, short circuit and other hazards are caused, and the use safety of the battery is seriously threatened.
Therefore, in order to intuitively explore the above problems, in the prior art, the electrode and electrolyte interface reaction process needs to be dynamically observed, so that the root of the problem can be found, the stability of the electrode structure in the circulation process is effectively controlled, and people can further study how to reduce the risk of puncturing the diaphragm by controlling the growth of dendrites. Therefore, it is necessary to design a battery in-situ testing device, which is matched with a micro camera and a thermal imager, and realize dynamic observation of electrode microstructure change and thermal distribution in the battery reaction process.
SUMMERY OF THE UTILITY MODEL
The problem to unable dynamic observation dendritic crystal production process among the prior art, the utility model provides a battery normal position testing arrangement, the device through setting up conductive electrode, instils into the electrolyte between conductive electrode, presses on conductive electrode through the glass apron, carries out the electrolysis to the electrolyte, can survey dendritic crystal effectively at the growth process of negative pole, has solved the problem of proposing in the background art effectively.
In order to solve the above problems, the utility model adopts the following technical proposal.
The in-situ battery testing device comprises conductive electrodes, wherein the conductive electrodes are oppositely arranged, electrolyte is dripped between the conductive electrodes, and one opposite side of the conductive electrode is positioned in the electrolyte;
the two sides of the conductive electrode are symmetrically and sequentially provided with a sealing rubber ring and a glass cover plate; the sealing rubber ring is symmetrically assembled at two sides of the conductive electrode, one end of the conductive electrode opposite to the sealing rubber ring extends into the cavity in the sealing rubber ring, the electrolyte is positioned in the cavity of the sealing rubber ring, and the conductive electrode is contacted with the electrolyte.
Preferably, the glass cover plate further comprises symmetrically arranged fixing and assembling plates, and the fixing and assembling plates are assembled through bolts to fasten the glass cover plate, the sealing rubber ring and the conductive electrode.
Preferably, the fixed assembling plate is provided with a visible window, and the vertical projection of the sealing rubber ring is positioned in the visible window of the fixed assembling plate.
Preferably, the in-situ battery testing device is placed on the brightening table and further comprises an in-situ testing optical instrument, and the in-situ testing optical instrument is opposite to the conductive electrode in the sealing rubber ring.
Preferably, the distance between the conductive electrodes positioned in the sealing rubber ring is 2-5 mm.
Preferably, the surface of one side opposite to the sealing rubber ring is provided with an open groove, the open grooves of 2 sealing rubber rings are oppositely assembled to form an assembly groove, and the conductive electrode is arranged in the assembly groove.
Preferably, the sum of the depths of the open grooves is equal to the thickness of the conductive electrode.
In order to improve the stability of battery normal position testing arrangement, the utility model discloses still adopt following technical scheme:
and a pressing plate is also arranged between the glass cover plate and the fixed assembling plate, and the vertical projection of the pressing plate is positioned at two sides of the sealing rubber ring.
In some embodiments, the pressing plate has a rectangular parallelepiped structure.
In other embodiments, the pressing plate comprises a connecting plate and sliding plates slidably mounted on two sides of the connecting plate, a fixed convex edge is fixedly mounted on one side of each sliding plate, which faces the glass cover plate, and is buckled at the side of the glass cover plate, and a telescopic member is mounted inside each sliding plate and connected with the connecting plate.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a battery normal position testing arrangement, through instiling into the electrolyte between conductive electrode, and conductive electrode compresses tightly through sealed rubber ring, sets up the glass apron on sealed rubber ring, and battery normal position testing arrangement is still including the normal position test optics appearance of connecting, and battery normal position testing arrangement is located the brightening platform, and through the electrolysis to the electrolyte, the dendrite forms on the negative pole, can the formation process of dynamic observation dendrite through normal position test optics appearance, makes things convenient for people to carry out the dynamic observation.
(2) The battery in-situ testing device in the utility model is characterized in that the sealing rubber ring is provided with an open slot which is matched with each other to form an assembly groove, and the conductive electrode is arranged in the assembly groove, thereby realizing the stable storage of electrolyte, avoiding the loss of the electrolyte and facilitating the use;
(3) the utility model provides a still be provided with the clamp plate between fixed assembly version and the glass apron, the clamp plate has improved the overall stability of device, and the clamp plate can tightly detain in the side department of glass apron, has improved the stability of glass apron, has further strengthened the stability of device, convenient assembly and use.
Drawings
Fig. 1 is a schematic structural diagram of a battery in-situ testing device according to the present invention;
FIG. 2 is a schematic view of an exploded structure of the in-situ battery testing device of the present invention;
FIG. 3 is a schematic view of an assembly structure of the in-situ battery testing device of the present invention;
FIG. 4 is a schematic view of the assembly structure of the conductive electrode and the sealing rubber ring of the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 4;
fig. 6 is a schematic view of an assembly structure of the middle seal rubber ring of the present invention;
fig. 7 is a schematic structural diagram of a battery in-situ testing device according to another embodiment of the present invention;
fig. 8 is a schematic structural view of the pressure plate in fig. 7.
The corresponding relationship between the reference numbers of the figures and the names of the components in the figures is as follows:
10. fixing the assembling plate;
20. pressing a plate; 21. a sliding plate; 211. fixing the convex edge; 22. a connecting plate; 23. a telescoping member;
30. a glass cover plate;
40. sealing the rubber ring; 41. an open slot;
50. an electrolyte;
60. a current collector; 61. and a conductive electrode.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, which are schematic structural views of a battery in-situ testing apparatus according to a preferred embodiment of the present invention.
The battery in-situ testing device of the embodiment comprises a conductive electrode 61, wherein the conductive electrode 61 is bonded at one end of a current collector 60 by conductive glue. The mass flow body 60 adopt the copper material to make, the mass flow body 60 be rectangular shape, conducting electrode 61 sets up relatively conducting electrode 61 between drip into electrolyte 50, just conducting electrode 61 relative one side be located electrolyte 50 in.
In this embodiment, the current collectors 60 are respectively connected to an external electrochemical test instrument, the electrochemical test instrument is CHI or happy blue electricity, the electrolyte 50 is electrolyzed by discharging of the electrochemical test instrument, and ions of the electrolyte 50 form dendrites at a negative electrode of a power supply.
In this embodiment, as shown in fig. 4, the sealing rubber ring 40, the glass cover plate 30, the pressing plate 20 and the fixing assembly plate 10 are symmetrically and sequentially assembled on the upper and lower sides of the conductive electrode 61. The seal rubber ring 40 is symmetrically assembled at the upper end and the lower end of the conductive electrode 61, and the opposite end of the conductive electrode 61 extends into the cavity inside the seal rubber ring 40, so that the effect is as shown in fig. 4, the electrolyte 50 is dropped into the seal rubber ring 40, the electrolyte 50 is electrolyzed by electrifying the conductive electrode 61, and ions in the electrolyte 50 form dendrites at the negative electrode.
In this embodiment, the glass cover plate 30 is attached to the sealing rubber ring 40 on two sides of the conductive electrode 61, and the glass cover plate 30 is convenient to observe the electrolytic condition of the electrolyte 50 in the sealing rubber ring 40 due to the permeability of the glass cover plate, so that the formation process of dendritic crystals can be observed conveniently.
In this embodiment, the battery in-situ testing device further includes symmetrically disposed fixing and assembling plates 10, and the fixing and assembling plates 10 fasten the glass cover plate 30, the sealing rubber ring 40 and the conductive electrode 61 through bolt assembly.
In this embodiment, the fixed mounting plate 10 is provided with a viewing window, and the vertical projection of the sealing rubber ring 40 is located in the viewing window of the fixed mounting plate 10.
In this embodiment, the in-situ battery testing apparatus is placed above the brightening table, and the in-situ testing optical instrument faces the U-shaped cavity of the fixing and assembling plate 10, so that the in-situ testing optical instrument can face the conductive electrode 61 in the sealing rubber ring 40, and the in-situ testing optical instrument can observe the formation process of the dendrite on the conductive electrode 61. The in-situ test optical instrument is a recordable optical microscope or an infrared imaging instrument. The in-situ battery testing device in this embodiment can visually observe the structural change of dendrite formed by ion reduction of the electrolyte 50 during electrolysis through the glass cover plate 30, thereby realizing the function of performing spectroscopy structural characterization on the electrode material or the electrolyte interface of the battery.
In the embodiment, the distance between the conductive electrodes 61 positioned in the sealing rubber ring 40 is 2-5 mm;
as shown in fig. 5, which is a schematic structural diagram of a seal rubber ring 40 according to another preferred embodiment of the present invention, in this embodiment, in order to avoid the situation that the electrolyte 50 flows out through a gap generated when the seal rubber ring 40 is assembled with the conductive electrode 61, in this embodiment, an open slot 41 is opened on the surface of the opposite side of the seal rubber ring 40, 2 open slots 41 on the seal rubber ring 40 are relatively assembled to form an assembly groove, the conductive electrode 61 is installed in the assembly groove, thereby realizing the seamless assembly of the seal rubber ring 40 and the conductive electrode 61, and the electrolyte 50 avoids the situation of loss.
In this embodiment, the sum of the depths of the 2 open grooves 41 is equal to the thickness of the conductive electrode 61.
Example 2
Fig. 2 and 3 are schematic structural views of a battery in-situ testing apparatus according to another preferred embodiment of the present invention. In the observation device of this embodiment, on the basis of embodiment 1, a pressing plate 20 is further disposed between the glass cover plate 30 and the fixing and assembling plate 10, the pressing plate 20 is a rectangular parallelepiped structure, and the vertical projection of the pressing plate 20 is located on two sides of the sealing rubber ring 40. In this embodiment, the pressing plate 20 improves the fastening degree between the fixing assembly plate 10 and the glass cover plate 30 and between the fixing assembly plate and the sealing rubber ring 40, so that the assembly fastening performance of the battery in-situ testing device is improved, and the electrolytic observation is facilitated.
As shown in fig. 6 and 7, it is a schematic structural view of a pressing plate 20 according to another preferred embodiment of the present invention. In this embodiment, in order to further enhance the stability of the glass cover plate 30 on the sealing rubber ring 40, the pressing plate 20 includes a connecting plate 22 and sliding plates 21 slidably mounted on both sides of the connecting plate 22. The side of the sliding plate 21 opposite to the side of the glass cover plate 30 is fixedly provided with a fixed convex edge 211, and the fixed convex edge 211 is buckled at the side of the glass cover plate 30. In this embodiment, as shown in fig. 8, a telescopic member 23 is assembled inside the sliding plate 21, and the telescopic member 23 is connected to the connecting plate 22. In this embodiment, the sliding plate 21 is slidably assembled on the connecting plate 22 through the telescopic member 23, and the fixing convex edge 211 is fastened on the side wall of the glass cover plate 30, so that the pressing plate 20 is fastened on the glass cover plate 30, and the assembly stability of the glass cover plate 30 is improved.
In this embodiment, the connecting plate 22 is made of a transparent material, and the length of the connecting plate 22 is smaller than that of the glass cover plate 30.
In this embodiment, the telescopic member 23 is a telescopic spring.
It is worth noting that: the telescopic member 23 in this embodiment includes, but is not limited to, a telescopic spring as long as it can achieve sliding of the sliding plate 21 on the connecting plate 22 and snap-fitting of the fixing ledge 211 at the side of the glass cover plate 30.
The above description is for further details of the present invention, and it is not assumed that the embodiments of the present invention are limited to these descriptions, and it is obvious to those skilled in the art that the present invention can be implemented by a plurality of simple deductions or replacements without departing from the concept of the present invention, and all should be considered as belonging to the protection scope defined by the claims submitted by the present invention.
Claims (10)
1. A battery in-situ testing device comprises conductive electrodes (61), wherein the conductive electrodes (61) are oppositely arranged, an electrolyte (50) is dripped between the conductive electrodes (61), and the opposite side of the conductive electrode (61) is positioned in the electrolyte (50); the method is characterized in that:
the upper side and the lower side of the conductive electrode (61) are symmetrically and sequentially provided with a sealing rubber ring (40) and a glass cover plate (30); the sealing rubber ring (40) is symmetrically assembled on the upper side and the lower side of the conductive electrode (61), one end, opposite to the conductive electrode (61), of the conductive electrode extends into a cavity inside the sealing rubber ring (40), the electrolyte (50) is located in the cavity of the sealing rubber ring (40), and the conductive electrode (61) is in contact with the electrolyte (50).
2. The in-situ battery testing device of claim 1, wherein: the glass cover plate is characterized by further comprising symmetrically-arranged fixing and assembling plates (10), wherein the fixing and assembling plates (10) are used for assembling and fastening the glass cover plate (30), the sealing rubber ring (40) and the conductive electrode (61) through bolts.
3. The in-situ battery testing device of claim 2, wherein: the fixed assembling plate (10) is provided with a visual window, and the vertical projection of the sealing rubber ring (40) is positioned in the visual window of the fixed assembling plate (10).
4. The in-situ battery testing device of claim 1, wherein: the battery in-situ testing device is placed on the brightening platform and further comprises an in-situ testing optical instrument, and the in-situ testing optical instrument is opposite to the conductive electrode (61) in the sealing rubber ring (40).
5. The in-situ battery testing device of claim 1, wherein: the distance between the conductive electrodes (61) positioned in the sealing rubber ring (40) is 2-5 mm.
6. The in-situ battery testing device of any one of claims 1-5, wherein: open grooves (41) are formed in the surface of the opposite side of the sealing rubber ring (40), the open grooves (41) on 2 sealing rubber rings (40) are oppositely assembled to form an assembly groove, and the conductive electrode (61) is installed in the assembly groove.
7. The in-situ battery testing device of claim 6, wherein: the sum of the depths of the 2 open grooves (41) is equal to the thickness of the conductive electrode (61).
8. The in-situ battery testing device of claim 2, wherein: and a pressing plate (20) is also arranged between the glass cover plate (30) and the fixed assembling plate (10), and the vertical projection of the pressing plate (20) is positioned at two sides of the sealing rubber ring (40).
9. The in-situ battery testing device of claim 8, wherein: the pressing plate (20) is of a cuboid structure.
10. The in-situ battery testing device of claim 8, wherein: the pressing plate (20) comprises a connecting plate (22) and sliding plates (21) assembled on two sides of the connecting plate (22) in a sliding mode, a fixed convex edge (211) is fixedly assembled on one side, opposite to the glass cover plate (30), of the side edge of the sliding plate (21), the fixed convex edge (211) is buckled on the side edge of the glass cover plate (30), a telescopic member (23) is assembled inside the sliding plate (21), and the telescopic member (23) is connected with the connecting plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023247177.1U CN212514379U (en) | 2020-12-30 | 2020-12-30 | Battery normal position testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023247177.1U CN212514379U (en) | 2020-12-30 | 2020-12-30 | Battery normal position testing arrangement |
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| Publication Number | Publication Date |
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| CN212514379U true CN212514379U (en) | 2021-02-09 |
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| CN202023247177.1U Active CN212514379U (en) | 2020-12-30 | 2020-12-30 | Battery normal position testing arrangement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433459A (en) * | 2021-05-11 | 2021-09-24 | 天津大学 | Device for testing solid lithium battery |
| CN113588645A (en) * | 2021-08-05 | 2021-11-02 | 南京航空航天大学 | In-situ microscopic imaging device for metal negative electrode battery |
-
2020
- 2020-12-30 CN CN202023247177.1U patent/CN212514379U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433459A (en) * | 2021-05-11 | 2021-09-24 | 天津大学 | Device for testing solid lithium battery |
| CN113588645A (en) * | 2021-08-05 | 2021-11-02 | 南京航空航天大学 | In-situ microscopic imaging device for metal negative electrode battery |
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