CN215644686U - Lithium ion battery with novel cover plate - Google Patents
Lithium ion battery with novel cover plate Download PDFInfo
- Publication number
- CN215644686U CN215644686U CN202121884852.3U CN202121884852U CN215644686U CN 215644686 U CN215644686 U CN 215644686U CN 202121884852 U CN202121884852 U CN 202121884852U CN 215644686 U CN215644686 U CN 215644686U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- fixedly connected
- battery
- lithium ion
- pressure release
- 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.)
- Expired - Fee Related
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 26
- 238000012856 packing Methods 0.000 claims abstract description 19
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 13
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 13
- 241001330002 Bambuseae Species 0.000 claims description 13
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 13
- 239000011425 bamboo Substances 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 7
- 239000012634 fragment Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
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- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium ion battery with a novel cover plate, which relates to the technical field of lithium ion batteries and comprises a battery cover plate, wherein two symmetrical insulating packing rings are fixedly embedded on the upper surface of the battery cover plate, the inner wall of each insulating packing ring is fixedly connected with an insulating ring, the inner walls of the two insulating rings are respectively and fixedly connected with a positive pole column and a negative pole column, and the upper surface of each insulating packing ring is fixedly connected with a first conducting strip. The utility model has reasonable design structure, can enhance the sealing performance between the positive pole post, the negative pole post and the battery cover plate, and can not reduce the sealing performance due to corrosion, thereby improving the safety performance of the battery and further prolonging the service life of the battery.
Description
Technical Field
The utility model relates to the technical field of lithium ion batteries, in particular to a lithium ion battery with a novel cover plate.
Background
In recent years, the development of electric vehicles has been rapidly advanced, and more electric automobiles and electric buses gradually enter the lives of people. The square power lithium ion battery is taken as the mainstream of the power battery, the market and policy determine that the demand of the lithium ion battery is rapidly increased, and meanwhile, the more rigorous requirement is also provided for the square power lithium ion battery. The cruising ability of the electric automobile comes from a battery pack, the battery pack is composed of a plurality of single batteries in series connection and parallel connection, and the single batteries are required to have high safety performance. The power lithium ion battery cover plate is used as a core component of the power lithium ion battery, and the reliability of the power lithium ion battery cover plate has great influence on the power lithium ion battery.
The existing lithium ion battery cover plate is often sealed only by using rubber when being sealed, and after the lithium ion battery cover plate is used for a long time, the rubber can be corroded to influence the sealing property of the battery cover plate, and the existing lithium ion battery explosion-proof device has a pressure reduction hole, so that impurities can enter the inside of the explosion-proof device through the pressure reduction hole to influence the normal use of the explosion-proof device. Therefore, the lithium ion battery with the novel cover plate is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
One) technical problem to be solved
The utility model aims to make up the defects of the prior art and provides a lithium ion battery with a novel cover plate.
II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a lithium ion battery with a novel cover plate comprises a battery cover plate, wherein two symmetrical insulating packing sets are fixedly embedded on the upper surface of the battery cover plate, the inner wall of each insulating packing set is fixedly connected with an insulating ring, the inner walls of the two insulating rings are respectively and fixedly connected with a positive pole post and a negative pole post, the upper surface of each insulating packing set is fixedly connected with a first conducting strip, the inner walls of the two first conducting strips are respectively and fixedly connected with the outer surfaces of the positive pole post and the negative pole post, the outer surfaces of the anode pole and the cathode pole, which are positioned below the battery cover plate, are fixedly connected with second conducting strips, the middle part of the battery cover plate is provided with an explosion-proof mechanism, the bottom surface of the battery cover plate is fixedly connected with two linking rings, the second conducting strips penetrate through the linking rings, and the linking rings are respectively and fixedly connected with the outer surfaces of the anode pole and the cathode pole.
Furthermore, the upper surface of the battery cover plate is fixedly connected with a supporting cylinder, and the upper surface of the supporting cylinder is fixedly connected with the outer surface of the insulating packing.
Furthermore, explosion-proof mechanism includes a pressure release section of thick bamboo, a pressure release section of thick bamboo fixed inlay with the middle part of battery apron, the inner wall fixedly connected with pressure release shell fragment of a pressure release section of thick bamboo.
Furthermore, the inner wall of the pressure relief cylinder is fixedly connected with a limiting ring, and a filter plate is arranged above the limiting ring.
Furthermore, first screw thread has been seted up to the inner wall of a pressure release section of thick bamboo, the top of a pressure release section of thick bamboo is equipped with the pressure release apron, the second screw thread has been seted up to the surface of pressure release apron, first screw thread and second screw thread looks adaptation, the through-hole that is the circumference array is seted up to the bottom surface of pressure release apron, the through-hole runs through the pressure release apron and extends to the top of pressure release apron.
Thirdly), the beneficial effects are as follows:
compared with the prior art, this lithium ion battery with novel apron possesses following beneficial effect:
according to the utility model, through the matching design of the battery cover plate, the insulating packing, the insulating ring, the anode pole and the cathode pole, the sealing performance between the anode pole and the battery cover plate as well as between the cathode pole and the battery cover plate can be enhanced, and the reduction of the sealing performance caused by corrosion can be avoided, so that the safety performance of the battery can be improved, and the service life of the battery can be greatly prolonged.
Through the arrangement of the explosion-proof mechanism, when the pressure inside the battery exceeds a threshold value, the pressure inside the battery can burst the pressure relief elastic sheet to release the pressure, the battery can be prevented from exploding, the pressure relief cover plate can protect the pressure relief elastic sheet, the filter plate and the limiting ring can prevent impurities from entering the pressure relief cylinder, and the impurities inside the pressure relief cylinder can be conveniently cleaned through the detachable design between the pressure relief cover plate and the pressure relief cylinder.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view in elevation of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 4 is a partial cross-sectional view of a front view of the present invention.
In the figure: 1. a battery cover plate; 2. an insulating packing; 3. an insulating ring; 4. a positive pole column; 5. a negative electrode post; 6. a first conductive sheet; 7. a support cylinder; 8. an adaptor ring; 9. a second conductive sheet; 10. a pressure relief cylinder; 11. a pressure relief elastic sheet; 12. a pressure relief cover plate; 13. a through hole; 14. filtering the plate; 15. a first thread; 16. a limiting ring; 17. a second thread; 18. an explosion-proof mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, the present invention provides a technical solution: a lithium ion battery with a novel cover plate comprises a battery cover plate 1, wherein two symmetrical insulating packing bases 2 are fixedly embedded on the upper surface of the battery cover plate 1, an insulating ring 3 is fixedly connected to the inner wall of each insulating packing base 2, an anode pole 4 and a cathode pole 5 are respectively fixedly connected to the inner walls of the two insulating rings 3, a first conducting strip 6 is fixedly connected to the upper surface of each insulating packing base 2, the inner walls of the two first conducting strips 6 are respectively fixedly connected with the outer surfaces of the anode pole 4 and the cathode pole 5, a second conducting strip 9 is respectively fixedly connected to the outer surfaces of the anode pole 4 and the cathode pole 5 which are positioned below the battery cover plate 1, an explosion-proof mechanism 18 is arranged in the middle of the battery cover plate 1, two linking rings 8 are fixedly connected to the bottom surface of the battery cover plate 1, the two second conducting strips 9 penetrate through the linking rings 8, the two linking rings 8 are respectively fixedly connected with the outer surfaces of the anode pole 4 and the cathode pole 5, by providing the engagement ring 8, the stability of the second conductive sheet 9 can be enhanced.
The upper surface of the battery cover plate 1 is fixedly connected with the supporting cylinder 7, and the upper surface of the supporting cylinder 7 is fixedly connected with the outer surface of the insulating packing 2. Through setting up a supporting cylinder 7, can play the supporting role to insulating packing 2 and first conducting strip 6.
The explosion-proof mechanism 18 comprises a pressure relief cylinder 10, the pressure relief cylinder 10 is fixedly embedded in the middle of the battery cover plate 1, and the inner wall of the pressure relief cylinder 10 is fixedly connected with a pressure relief elastic sheet 11. Through setting up pressure release section of thick bamboo 10 and pressure release shell fragment 11, can play the guard action to the battery through pressure release shell fragment 11, avoid the too big explosion that causes of battery internal pressure.
In the above, the inner wall of the pressure release cylinder 10 is fixedly connected with a limiting ring 16, and a filter plate 14 is arranged above the limiting ring 16. By providing the limiting ring 16 and the filter plate 14, impurities entering the pressure relief cylinder 10 through the through hole 13 can be filtered through the filter plate 14.
As described above, the inner wall of the pressure relief cylinder 10 is provided with the first thread 15, the pressure relief cover plate 12 is arranged above the pressure relief cylinder 10, the outer surface of the pressure relief cover plate 12 is provided with the second thread 17, the first thread 15 is matched with the second thread 17, the bottom surface of the pressure relief cover plate 12 is provided with the through holes 13 in the circumferential array, and the through holes 13 penetrate through the pressure relief cover plate 12 and extend to the upper side of the pressure relief cover plate 12. Through setting up pressure release apron 12 and through-hole 13, can play the guard action to pressure release shell fragment 11 through pressure release apron 12, rotatory pressure release apron 12, with pressure release apron 12 and the 10 phase separations of pressure release section of thick bamboo, the convenience is cleared up the inside impurity of pressure release section of thick bamboo 10.
The working principle is as follows: insulating packing 2 and insulator ring 3's setting, can strengthen the leakproofness between anodal utmost point post 4 and negative terminal post 5 and the battery apron 1 greatly, and can not cause the reduction of leakproofness because of corroding, when the inside pressure of battery surpassed the threshold value, the inside pressure of battery can break pressure release shell fragment 11 and come release pressure, and then can prevent that the battery from exploding, pressure release apron 12 can play the guard action to pressure release shell fragment 11, and filter plate 14 and spacing ring 16 can block the inside that impurity enters into pressure release section of thick bamboo 10, and through with pressure release apron 12 and 10 phase separations of pressure release section of thick bamboo 10, the convenience is cleared up the inside impurity of pressure release section of thick bamboo 10.
It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "fixedly," "mounted," "connected," and "connected" are to be construed broadly, e.g., "mounted" may be fixedly connected, or detachably connected, or integrally connected; "connected" may be mechanically or electrically connected; "connected" may be directly connected or indirectly connected through an intermediate member, or may be internal or external to two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a lithium ion battery with novel apron, includes battery apron (1), its characterized in that: the battery cover plate is characterized in that two symmetrical insulating packing sets (2) are fixedly embedded on the upper surface of the battery cover plate (1), each insulating packing set (2) is fixedly connected with an insulating ring (3) on the inner wall, the insulating rings (3) are fixedly connected with an anode pole (4) and a cathode pole (5) on the inner wall respectively, each insulating packing set (2) is fixedly connected with a first conducting strip (6) on the upper surface, the inner walls of the first conducting strips (6) are fixedly connected with the outer surfaces of the anode pole (4) and the cathode pole (5) respectively, the outer surfaces of the anode pole (4) and the cathode pole (5) below the battery cover plate (1) are fixedly connected with a second conducting strip (9), an explosion-proof mechanism (18) is arranged in the middle of the battery cover plate (1), and two linking rings (8) are fixedly connected with the bottom surface of the battery cover plate (1), the two second conducting strips (9) penetrate through the connecting rings (8), and the connecting rings (8) are fixedly connected with the outer surfaces of the positive pole post (4) and the negative pole post (5) respectively.
2. The lithium ion battery with the novel cover plate of claim 1, wherein: the upper surface of the battery cover plate (1) is fixedly connected with a supporting cylinder (7), and the upper surface of the supporting cylinder (7) is fixedly connected with the outer surface of the insulating packing (2).
3. The lithium ion battery with the novel cover plate of claim 1, wherein: the explosion-proof mechanism (18) comprises a pressure relief cylinder (10), the pressure relief cylinder (10) is fixedly embedded in the middle of the battery cover plate (1), and the inner wall of the pressure relief cylinder (10) is fixedly connected with a pressure relief elastic sheet (11).
4. The lithium ion battery with the novel cover plate as claimed in claim 3, wherein: the inner wall of the pressure relief cylinder (10) is fixedly connected with a limiting ring (16), and a filter plate (14) is arranged above the limiting ring (16).
5. The lithium ion battery with the novel cover plate as claimed in claim 3, wherein: first screw thread (15) have been seted up to the inner wall of a pressure release section of thick bamboo (10), the top of a pressure release section of thick bamboo (10) is equipped with pressure release apron (12), second screw thread (17) have been seted up to the surface of pressure release apron (12), first screw thread (15) and second screw thread (17) looks adaptation, through-hole (13) that are the circumference array are seted up to the bottom surface of pressure release apron (12), through-hole (13) run through pressure release apron (12) and extend to the top of pressure release apron (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884852.3U CN215644686U (en) | 2021-08-12 | 2021-08-12 | Lithium ion battery with novel cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121884852.3U CN215644686U (en) | 2021-08-12 | 2021-08-12 | Lithium ion battery with novel cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644686U true CN215644686U (en) | 2022-01-25 |
Family
ID=79897355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121884852.3U Expired - Fee Related CN215644686U (en) | 2021-08-12 | 2021-08-12 | Lithium ion battery with novel cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215644686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
-
2021
- 2021-08-12 CN CN202121884852.3U patent/CN215644686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115117527A (en) * | 2022-06-06 | 2022-09-27 | 宜兴市泰宇汽车零部件有限公司 | Compound EPP battery apron with fire-retardant dampproofing effect ventilates |
| CN115117527B (en) * | 2022-06-06 | 2024-03-08 | 宜兴市泰宇汽车零部件有限公司 | Composite EPP battery cover plate with ventilation, flame retardance and moisture resistance effects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lithium ion battery with a new cover plate Effective date of registration: 20221128 Granted publication date: 20220125 Pledgee: Hegang Urban Rural Credit Cooperative Union Tuanjie Branch Pledgor: Heilongjiang guoxintong Technology Information Industry Co.,Ltd. Registration number: Y2022230000094 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |