CN219979670U - Lithium battery cover plate assembly - Google Patents
Lithium battery cover plate assembly Download PDFInfo
- Publication number
- CN219979670U CN219979670U CN202321349406.1U CN202321349406U CN219979670U CN 219979670 U CN219979670 U CN 219979670U CN 202321349406 U CN202321349406 U CN 202321349406U CN 219979670 U CN219979670 U CN 219979670U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- apron
- lithium battery
- mounting hole
- current collecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 abstract description 5
- 239000002775 capsule Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002496 gastric effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000018522 Gastrointestinal disease Diseases 0.000 description 1
- 206010039897 Sedation Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000005176 gastrointestinal motility Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000036280 sedation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a lithium battery cover plate assembly in the technical field of batteries, including the apron, the apron bottom is connected with the bottom plate, apron center department is equipped with the arch, protruding central point puts and is equipped with the mounting hole, installs the mass flow post in the mounting hole, mounting hole and mass flow post coaxial line, the mounting hole between mass flow post and the apron is filled with the insulator that is used for insulating mass flow post and apron, has seted up the notes liquid hole on the apron, annotates liquid hole diameter and is 0.5 ~ 0.6mm, the height of apron and insulator is 1mm ~3mm, annotates the downthehole steel ball that is equipped with the notes liquid hole jam. The device can solve the problem that the lithium battery sealing component is easy to be filled with reduced conductive materials or is partially communicated to cause unqualified batteries in the prior art.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a lithium battery cover plate assembly.
Background
The advent of capsule gastroscope robots breaks through traditional gastroscopes, and the inspection is performed by inserting a hose from the oral cavity into the stomach, which brings pain to people and may damage the digestive tract of people. The capsule robot utilizes the precise magnetic control technology, so that the capsule gastroscope can be controlled by a doctor to freely move in the stomach of a human body, and can observe gastrointestinal parts which are not easy to reach by the prior endoscope, the operation is simple, sedation is not needed, and the influence on gastrointestinal motility is small. The navigator in the capsule endoscope product truly realizes accurate stomach checking, has high accuracy, and fills the blank of gastrointestinal noninvasive visual inspection.
With the continuous development of science and technology, the capsule endoscopes are highly accepted and vigorously developed in the field of international medical instruments, mainly because the capsule endoscopes are already effective devices for diagnosing gastrointestinal diseases at present. The existing capsule lithium battery generally uses a glass sealing component as an insulating layer, a current collecting column through hole is formed in the glass sealing component, the current collecting column penetrates through the current collecting column through hole on the cover plate, and the insulating layer filled in a gap between the cover plate and the current collecting column is a glass body. The reduced conductive material is filled or partially communicated, so that battery leakage is easy to cause, and the surface of an insulating layer between the positive electrode cover and the current collecting column is easy to connect, so that the battery is continuously discharged, and the battery shows low open circuit voltage in the storage process, and even the battery electric quantity is exhausted. The proportion of unqualified batteries produced by the prior art is more than 5% of the total number of the batteries due to the reason.
Disclosure of Invention
The utility model aims to provide a lithium battery cover plate component so as to solve the problem that in the prior art, a lithium battery sealing component is easy to be filled with reduced conductive materials or is partially communicated with the reduced conductive materials, so that a battery is unqualified.
The lithium battery cover plate assembly comprises a cover plate, wherein the bottom of the cover plate is connected with a bottom plate, a bulge is arranged at the center of the cover plate, a mounting hole is formed in the center of the bulge, a current collecting column is mounted in the mounting hole, the mounting hole is coaxial with the current collecting column, an insulator for isolating the current collecting column from the cover plate is filled in the mounting hole between the current collecting column and the cover plate, a liquid injection hole is formed in the cover plate, the diameter of the liquid injection hole is 0.5-0.6 mm, the heights of the cover plate and the insulator are 1-3 mm, and a steel ball for blocking the liquid injection hole is arranged in the liquid injection hole.
The beneficial effect of this scheme: when manufacturing, set up apron and insulator to 6mm ~8mm, can make the terminal surface area of insulator be greater than the terminal surface area of insulator among the prior art, in lithium cell use, even the battery is whole discharges and accomplishes, metal and carbon that its inside produced also can not cause the problem that apron and mass flow post are connected, let the electric quantity of battery all convert into actual use, can not be consumed under the unused state, and can not take place because of the problem that reduced conductive material communicates positive and negative pole and become invalid, namely after this scheme seal assembly was used for the capsule lithium cell, the life of battery can be increased.
Further, the insulator is a glass body, and the glass body fixes the current collecting column on the bottom plate through high-temperature sintering. The lithium battery needs to be subjected to a safety performance destructive test, when electrolyte used in the lithium battery is liquid, the electrolyte in the lithium battery can be decomposed to generate certain internal pressure, if the insulating effect of the insulating layer is poor, the possibility of explosion can occur, the glass filling layer is filled in the counter bore to be sintered at a high temperature, and compared with rubber or other insulating objects, the glass filling layer is used as the insulating layer, so that the insulating effect is improved, and the strength of the insulating layer is also improved.
Further, reinforcing ribs are added at the glass sealing positions of the bottom plate, the thickness of the reinforcing ribs is 0.2mm, and the diameter of the reinforcing ribs is 3.9-4mm. Through increasing the strengthening rib of bottom plate glass seal position, the surface seal height of insulating layer in the stem through-hole increases seal intensity to avoid in the battery in the equipment process, eliminate the impact pressure when carrying out the stifled hole behind embedment electrolyte, make the battery leak liquid after storing for a period of time, reduced the life of battery
Further, the current collecting column is a T-shaped column. Compared with a common current collecting column, the T-shaped column increases the contact area of the insulating layer, so that the adhesive force of the T-shaped column is better.
Further, the bottom end face of the cover plate is provided with a taper chamfer. The bottom section of the cover plate is arranged to be the taper chamfer, so that a diaphragm is prevented from being generated during seam pressing in the production process, and the possibility of splashing during welding is reduced.
Drawings
FIG. 1 is a schematic view of a lithium battery cover plate assembly according to the present utility model;
FIG. 2 is a diagram showing the leakage of a battery produced by a conventional cover plate;
fig. 3 shows the leakage condition of the battery produced by the cover plate of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the device comprises a bottom plate 1, a cover plate 2, a glass body 3, a current collecting column 4, steel balls 5 and a liquid injection hole 6.
An example is substantially as shown in figure 1: the utility model provides a lithium cell apron subassembly, including apron 2, apron 2 bottom fixedly connected with bottom plate 1, apron 2 and bottom surface of bottom plate 1 are the tapering chamfer, apron 2 center department is equipped with the arch, protruding central point puts and is equipped with the mounting hole, install the collector post 4 of T type in the mounting hole, the mounting hole is coaxial with collector post 4, the mounting hole between collector post 4 and the apron 2 is filled with the insulator that is used for insulating collector post 4 and apron 2, the insulator is glass body 3, and glass body 3 fixes collector post 4 on bottom plate 1 through high temperature sintering, the glass seal department of bottom plate 1 has increased the strengthening rib, the strengthening rib thickness is 0.2mm, the diameter is 3.9-4mm, annotate liquid hole 6 has been seted up on the apron 2, annotate liquid hole 6 diameter is 0.5 ~ 0.6mm, the height of apron 2 and insulator is 1mm ~3mm, annotate and be equipped with in the liquid hole 6 and block up steel ball 5.
The shape of the axial section of the current collecting column 4 is T-shaped, the current collecting column 4 is formed by stamping, after the current collecting column 4 is positioned by a tool, the glass body 3 is filled in the current collecting column 4, and high-temperature sintering is carried out, so that the glass body 3 and the cover body are connected together, and compared with rubber or other insulating objects, the insulating effect is improved and the strength of the insulating layer is also improved by taking glass as the insulating layer.
Claims (5)
1. A lithium battery cover plate assembly, characterized in that: the device comprises a cover plate, wherein the bottom of the cover plate is connected with a bottom plate, a bulge is arranged at the center of the cover plate, a mounting hole is formed in the center of the bulge, a current collecting column is mounted in the mounting hole, the mounting hole is coaxial with the current collecting column, an insulator for isolating the current collecting column from the cover plate is filled in the mounting hole between the current collecting column and the cover plate, a liquid injection hole is formed in the cover plate, the diameter of the liquid injection hole is 0.5-0.6 mm, the heights of the cover plate and the insulator are 1-3 mm, and a steel ball for blocking the liquid injection hole is arranged in the liquid injection hole.
2. A lithium battery cover plate assembly according to claim 1, wherein: the insulator is a glass body, and the glass body fixes the current collecting column on the bottom plate through high-temperature sintering.
3. A lithium battery cover plate assembly according to claim 2, wherein: reinforcing ribs are added at the glass sealing positions of the bottom plate, the thickness of the reinforcing ribs is 0.2mm, and the diameter of the reinforcing ribs is 3.9-4mm.
4. A lithium battery cover plate assembly according to claim 3, wherein: the current collecting column is a T-shaped column.
5. The lithium battery cover plate assembly according to claim 4, wherein: the bottom end face of the cover plate is provided with a taper chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349406.1U CN219979670U (en) | 2023-05-30 | 2023-05-30 | Lithium battery cover plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349406.1U CN219979670U (en) | 2023-05-30 | 2023-05-30 | Lithium battery cover plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979670U true CN219979670U (en) | 2023-11-07 |
Family
ID=88597746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321349406.1U Active CN219979670U (en) | 2023-05-30 | 2023-05-30 | Lithium battery cover plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979670U (en) |
-
2023
- 2023-05-30 CN CN202321349406.1U patent/CN219979670U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |