CN220821726U - Top cover assembly of sodium ion battery - Google Patents
Top cover assembly of sodium ion battery Download PDFInfo
- Publication number
- CN220821726U CN220821726U CN202322574993.0U CN202322574993U CN220821726U CN 220821726 U CN220821726 U CN 220821726U CN 202322574993 U CN202322574993 U CN 202322574993U CN 220821726 U CN220821726 U CN 220821726U
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof
- top cover
- top cap
- arc
- 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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- 229910001415 sodium ion Inorganic materials 0.000 title claims abstract description 23
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000004927 fusion Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 230000006378 damage Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a sodium ion battery top cover assembly, which relates to the technical field of battery top covers and comprises a top cover, wherein two polar posts are fixedly arranged at the upper end of the top cover, the two polar posts are respectively arranged at one side of the upper end of the top cover and are divided into an anode and a cathode, a liquid injection hole is formed in the top cover positioned at one side of one polar post, an explosion-proof hole is formed in the top cover positioned at one side of the liquid injection hole, the explosion-proof hole is positioned at the center of the top cover, and an explosion-proof cover is fixedly arranged on the top cover positioned above the explosion-proof hole. The top cover at explosion-proof hole top position is fixed mounting explosion-proof lid to from interior to exterior in explosion-proof lid is pasted and second arc fixed plate, buffer network, can seal the protection to explosion-proof hole inner chamber with the help of the face subsides, simultaneously, after the pressure in the battery breaks the face subsides, can pass through the buffer network buffering and discharge pressure through the pressure release through the groove, slows down the speed of battery internal pressure blowout.
Description
Technical Field
The utility model relates to the technical field of battery top covers, in particular to a sodium ion battery top cover assembly.
Background
The Na ion battery is a novel battery system, is similar to a lithium ion battery, and realizes electrochemical reaction through ion migration, na+ is inserted and removed back and forth between two electrodes in the charging and discharging process, na+ is removed from a positive electrode during charging, is inserted into a negative electrode through an electrolyte, and is opposite during discharging;
In the assembly process of the sodium ion battery, a top cover can be installed at the end part of the sodium ion battery, the top cover component for the sodium ion battery disclosed by the prior bulletin No. CN218351572U can enable the left limiting block and the right limiting block to be all retracted to the inner side of a movable cavity under the action of a connecting spring when being installed through the movable left limiting block and the movable right limiting block on the plug board, so that the connection structure between the top cover top plate and the top cover bottom plate can not be damaged when the plug board is installed and disassembled, the damage to the battery top cover can not be caused by larger acting force, after the sodium ion battery breaks down, the structure can only rely on a single explosion-proof piece to effectively buffer the overflow pressure of the sodium ion battery caused by the fault, and the ejected matter can be enabled to directly burst the explosion-proof piece to be ejected, thereby easily causing peripheral devices or personal injuries.
Disclosure of utility model
The utility model aims to provide a sodium ion battery top cover assembly which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a sodium ion battery top cap subassembly, includes the top cap, top cap upper end fixed mounting has two posts, two the post is arranged respectively in one side of top cap upper end, and two the post divide into positive pole and negative pole, is located one of them annotate the liquid hole has been seted up to the top cap of post one side, is located annotate the explosion-proof hole has been seted up to the top cap of liquid hole one side, just the explosion-proof hole is located top cap central point puts, is located the top cap fixed mounting of explosion-proof hole top position has the explosion-proof lid.
As a further preferable scheme of the utility model, a plurality of first arc-shaped fixing plates are arranged at the inner top of the explosion-proof cover, a second arc-shaped fixing plate is also arranged at the inner top of the explosion-proof cover positioned at one side of the first arc-shaped fixing plates, and the explosion-proof cover, the second arc-shaped fixing plates and the first arc-shaped fixing plates are integrally injection molded.
As a further preferable scheme of the utility model, a surface patch is arranged between the two first arc-shaped fixing plates, and two ends and the upper end of the surface patch are respectively fixedly arranged at one end of the corresponding first arc-shaped fixing plate and the inner top of the explosion-proof cover in a fusion manner.
As a further preferable scheme of the utility model, a connecting rod is arranged between the two second arc-shaped fixing plates, both ends of the connecting rod are fixedly arranged at one end of the corresponding second arc-shaped fixing plate in a welding mode, a buffer net is fixedly arranged in a channel between the explosion-proof cover and the second arc-shaped fixing plate and between the explosion-proof cover and the connecting rod in a welding mode, and the buffer net is made of stainless steel.
As a further preferable scheme of the utility model, a plurality of pressure relief through grooves are formed in the top of the explosion-proof cover between the inner side of the explosion-proof cover and the second arc-shaped fixing plate.
Compared with the prior art, the utility model has the following beneficial effects:
According to the sodium ion battery top cover assembly, the explosion-proof cover is fixedly arranged on the top cover above the explosion-proof hole, the first arc-shaped fixing plate, the surface patch and the second arc-shaped fixing plate and the buffer net are arranged in the explosion-proof cover from inside to outside, the inner cavity of the explosion-proof hole can be sealed and protected by means of the surface patch, and meanwhile, after the surface patch is broken by the pressure in the battery, the pressure can be buffered by the buffer net and discharged through the pressure relief through groove, so that the speed of jetting out the pressure in the battery is slowed down.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
Fig. 2 is a schematic view of the structure of the explosion-proof cover of the present utility model.
In the figure: 1. a top cover; 2. a pole; 3. a liquid injection hole; 4. explosion-proof holes; 5. an explosion-proof cover; 6. a first arc-shaped fixing plate; 7. a face paste; 8. a second arc-shaped fixing plate; 9. a connecting rod; 10. a buffer net; 11. and (5) pressure relief through grooves.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-2, the sodium ion battery top cover assembly provided by the utility model comprises a top cover 1, wherein two polar posts 2 are fixedly arranged at the upper end of the top cover 1, the two polar posts 2 are respectively arranged at one side of the upper end of the top cover 1, the two polar posts 2 are divided into a positive electrode and a negative electrode, a liquid injection hole 3 is formed in the top cover 1 positioned at one side of one polar post 2, an explosion-proof hole 4 is formed in the top cover 1 positioned at one side of the liquid injection hole 3, the explosion-proof hole 4 is positioned at the center of the top cover 1, and an explosion-proof cover 5 is fixedly arranged on the top cover 1 positioned above the explosion-proof hole 4.
The top in the explosion-proof cover 5 is provided with a plurality of first arc-shaped fixing plates 6, the top in the explosion-proof cover 5 positioned at one side of the first arc-shaped fixing plates 6 is also provided with a second arc-shaped fixing plate 8, the explosion-proof cover 5, the second arc-shaped fixing plates 8 and the first arc-shaped fixing plates 6 are integrally injection molded, a surface patch 7 is arranged between the two first arc-shaped fixing plates 6, two ends and the upper end of the surface patch 7 are fixedly arranged at one end of the corresponding first arc-shaped fixing plate 6 and the inner top of the explosion-proof cover 5 respectively in a fusion manner, the surface patch 7 is fixedly connected between the two first arc-shaped fixing plates 6, the surface patch 7 can seal the explosion-proof hole 4 when the battery is normally used due to the thinner thickness, and after the battery fails, the surface patch 7 is broken by utilizing the pressure in the battery;
Through being equipped with connecting rod 9 between two second arc fixed plates 8, connecting rod 9 both ends are all through welded mode fixed mounting at the second arc fixed plate 8 one end that corresponds, be located explosion-proof lid 5 and second arc fixed plate 8, the passageway between connecting rod 9 is still through welded mode fixed mounting there is buffering net 10, and buffering net 10 is the stainless steel material, a plurality of pressure release logical grooves 11 have been seted up at explosion-proof lid 5 top that is located between explosion-proof lid 5 inboard and the second arc fixed plate 8, install a plurality of buffering nets 10 in the second arc fixed plate 8, can make the pressure in the battery discharge the pressure release by second arc fixed plate 8 after a plurality of buffering nets 10 buffering.
It should be noted that, the present utility model is a top cover assembly of a sodium ion battery, when a sodium ion battery fails, the pressure gas in the sodium ion battery enters into an explosion-proof cover 5 through an explosion-proof hole 4, and breaks a plurality of surface patches 7, and the pressure gas after breaking the surface patches 7 plays a role of buffering after passing through a buffering net 10, meanwhile, other substances sprayed along with the pressure gas in the battery can be intercepted, and the remaining gas sprayed out due to the pressure in the sodium ion is shunted and decompressed by a plurality of second arc-shaped fixing plates 8 after passing through the buffering net 10, so as to reduce the speed of the sprayed gas in the battery.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A sodium ion battery top cap assembly, characterized in that: including top cap (1), top cap (1) upper end fixed mounting has two utmost point posts (2), two utmost point post (2) are arranged in one side of top cap (1) upper end respectively, and two utmost point post (2) divide into anodal and negative pole, are located one of them annotate liquid hole (3) have been seted up to top cap (1) of utmost point post (2) one side, are located explosion-proof hole (4) have been seted up to top cap (1) of annotating liquid hole (3) one side, just explosion-proof hole (4) are located top cap (1) central point put, are located top cap (1) fixed mounting of explosion-proof hole (4) top position has explosion-proof lid (5).
2. The sodium ion battery top cap assembly of claim 1, wherein: the top is equipped with a plurality of first arc fixed plates (6) in explosion-proof lid (5), is located the explosion-proof lid (5) of first arc fixed plate (6) one side in the top still be equipped with second arc fixed plate (8), just explosion-proof lid (5) and second arc fixed plate (8), first arc fixed plate (6) are integrated into one piece injection moulding.
3. The sodium ion battery top cap assembly of claim 2, wherein: a surface patch (7) is arranged between the two first arc-shaped fixing plates (6), and two ends and the upper end of the surface patch (7) are fixedly arranged at one end of the corresponding first arc-shaped fixing plate (6) and the inner top of the explosion-proof cover (5) in a fusion manner respectively.
4. A sodium ion battery top cap assembly as defined in claim 3, wherein: two be equipped with connecting rod (9) between second arc fixed plate (8), connecting rod (9) both ends are all through welded mode fixed mounting in second arc fixed plate (8) one end that corresponds, are located the passageway between explosion-proof lid (5) and second arc fixed plate (8), connecting rod (9) is still through welded mode fixed mounting there is buffering net (10), just buffering net (10) are stainless steel.
5. The sodium ion battery top cap assembly of claim 4, wherein: a plurality of pressure relief through grooves (11) are formed in the top of the explosion-proof cover (5) between the inner side of the explosion-proof cover (5) and the second arc-shaped fixing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322574993.0U CN220821726U (en) | 2023-09-21 | 2023-09-21 | Top cover assembly of sodium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322574993.0U CN220821726U (en) | 2023-09-21 | 2023-09-21 | Top cover assembly of sodium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821726U true CN220821726U (en) | 2024-04-19 |
Family
ID=90705905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322574993.0U Active CN220821726U (en) | 2023-09-21 | 2023-09-21 | Top cover assembly of sodium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821726U (en) |
-
2023
- 2023-09-21 CN CN202322574993.0U patent/CN220821726U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |