CN217214995U - Explosion-proof valve, power battery cover plate device and power battery - Google Patents
Explosion-proof valve, power battery cover plate device and power battery Download PDFInfo
- Publication number
- CN217214995U CN217214995U CN202122807558.9U CN202122807558U CN217214995U CN 217214995 U CN217214995 U CN 217214995U CN 202122807558 U CN202122807558 U CN 202122807558U CN 217214995 U CN217214995 U CN 217214995U
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof valve
- power battery
- nick
- cover plate
- 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.)
- Active
Links
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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The embodiment of the specification provides an explosion-proof valve, a power battery cover plate device and a power battery, and is applied to the technical field of power batteries. Wherein, explosion-proof valve includes: installation department and explosion-proof valve block are provided with nick and strengthening rib on the explosion-proof valve block, and the nick is located the inboard direction of installation department and is the runway type setting, and the strengthening rib is the arc and sets up on the explosion-proof valve block, and under the opening pressure effect, the strengthening rib makes explosion-proof valve block burst along the nick. Through set up nick and strengthening rib on explosion-proof valve block, both changed explosion-proof valve block atress distribution, strengthened the regional intensity in explosion-proof valve block middle part again for explosion-proof valve explodes and overturns along nick department, exhausts rapidly and safely, avoids explosion-proof valve to form the piece that breaks away from power battery when opening again simultaneously, has improved power battery's security.
Description
Technical Field
The specification relates to the technical field of power batteries, in particular to an explosion-proof valve, a power battery cover plate device and a power battery.
Background
With the increasing prominence of environmental problems, people are actively advocating low-carbon economy. New energy vehicles are emerging with increasingly severe air quality. Manufacturers and consumers are gradually accepting hybrid electric vehicles and pure electric vehicles as representative new energy vehicles. The power battery is used as a main power source of the new energy automobile and becomes one of the core components of the electric automobile.
In the existing scheme, in order to ensure that the power battery has high capacity and better safety and cycle life, an explosion-proof valve is arranged on a top cover plate of a common power battery, and the explosion-proof valve of the power battery can be opened in time to discharge gas generated in the power battery under special conditions (such as thermal runaway, short circuit and the like) of the power battery, so that the safety of the power battery is improved.
However, in practical use of the power battery, the whole explosion-proof valve is easily and completely flushed and formed into a plurality of fragments separated from the top cover plate, and the fragments are also easy to damage other parts and parts, so that the safety of the power battery is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, embodiments of the present disclosure provide an explosion-proof valve, a power battery cover plate device and a power battery, which can prevent the explosion-proof valve from being completely opened when the explosion-proof valve is opened and forming a plurality of fragments separated from the top cover plate, protect other parts from being damaged by the explosion of the explosion-proof valve, and improve the safety of the power battery.
The embodiment of the specification provides the following technical scheme:
the embodiment of the specification provides a power battery explosion-proof valve which comprises an installation part and an explosion-proof valve plate, wherein the explosion-proof valve plate is provided with nicks and reinforcing ribs, the nicks are located in the inner side direction of the installation part and arranged in a runway shape, and the reinforcing ribs are arranged on the explosion-proof valve plate in an arc shape; wherein, under the action of the opening pressure, the reinforcing ribs enable the explosion-proof valve plate to burst along the nicks.
The embodiment of the specification provides a power battery cover plate device, which comprises a top cover plate and an explosion-proof valve, wherein the explosion-proof valve is the explosion-proof valve of the power battery in any one of the embodiments of the specification, and is arranged in an explosion-proof valve hole of the top cover plate.
The embodiment of the specification provides a power battery, which comprises a battery body and a cover plate device, wherein the battery body is connected with the cover plate device, and the cover plate device is the power battery cover plate device in any one of the embodiments of the specification.
Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:
through the improved design to the explosion-proof valve, through set up nick and strengthening rib on the explosion-proof valve block promptly, make when power battery's internal pressure increases, the strengthening rib on the explosion-proof valve block has changed the plane atress of explosion-proof valve and has distributed, make the explosion-proof valve block gradually burst along nick department, form a plurality of fragments that splash that break away from the lamina tecti when preventing that the explosion-proof valve block from bursting, other peripheral equipment of protection power battery is not impacted by the fragment that splashes and causes the destruction, power battery's security has been improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the construction of an explosion-proof valve;
FIG. 2 is a schematic structural diagram of a partial sectional view of an explosion-proof valve plate in the explosion-proof valve;
FIG. 3 is a schematic structural view of a reinforcement rib in the explosion-proof valve;
fig. 4 is a structural schematic diagram of a reinforcing rib in the explosion-proof valve.
Detailed Description
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. The application is capable of other and different embodiments and its several details are capable of modifications and various changes in detail without departing from the spirit of the application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. 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 application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
Although the existing power battery explosion-proof valve is provided with a crack, the crack is easy to cause the explosion-proof valve to form splash fragments due to strong impact in the process of explosion, and damage is caused to other parts.
In view of this, the embodiments of the present disclosure provide an explosion-proof valve, a power battery cover plate device, and a power battery, which can protect the explosion-proof valve from being normally opened when the internal pressure of the power battery is too high, and prevent the explosion-proof valve from forming a splash fragment separated from the power battery when being opened, so as to avoid damage to other components due to impact of the splash fragment, and improve the safety of the power battery.
Technical solutions provided by the embodiments of the present application are described below with reference to fig. 1 to 4.
Example one
The embodiment of the specification provides a power battery explosion-proof valve 1, which comprises an installation part 5 and an explosion-proof valve plate 3, wherein nicks 2 and reinforcing ribs 4 are arranged on the explosion-proof valve plate 3.
The mounting part 5 is used for matching with an explosion-proof valve hole of a top cover plate of the power battery and is mounted on the lower surface of the top cover plate.
The nick 2 is runway type, can set up at the edge periphery of the explosion-proof valve block 3 that is close to the inboard direction of installation department 5 for when explosion-proof valve 1 receives predetermined opening pressure, can split along nick 2.
It should be noted that the notch 2 is a notch 2 that is arranged to enable the explosion-proof valve plate 3 to normally rupture under the action of a preset opening pressure, so that the notch 2 may be arranged according to the opening requirement of the power battery, for example, the parameters such as the depth and the width of the notch may be specifically determined by the actual requirement of the power battery, and this is not limited here.
The strengthening rib 4 is the arc, can set up on explosion-proof valve block 3, for example the symmetry sets up twice arc, and under the opening pressure effect, strengthening rib 4 is as the region of strengthening on the explosion-proof valve block 3 like this for explosion-proof valve block 3 does not burst along the middle part, but opens and bursts in order from the edge along nick 2.
Through set up nick 2 that is used for bursting and the strengthening rib 4 that is used for preventing to form the piece that splashes on explosion-proof valve block 3, can change explosion-proof valve block 3's stress distribution, make explosion-proof valve 1 receive under the predetermined opening pressure effect, explosion-proof valve block 3 can be along nick 2 and burst in order, avoid explosion-proof valve block 3 to form a plurality of pieces that splash and cause the impact damage to power battery peripheral equipment under power battery's internal pressure impact, the security in the power battery use has been improved.
In some embodiments, the reinforcing rib 4 may be in a notch shape, and the stress distribution in the middle of the explosion-proof sheet 3 may be changed by the notch shape, so as to form a reinforced area of the explosion-proof valve sheet 3 in the middle, so that the whole explosion-proof valve sheet 3 is firstly burst along the notch 2 under the action of the opening pressure, rather than from the middle of the explosion-proof sheet 3, and the surface explosion-proof valve sheet 3 forms splash fragments in the burst.
In some embodiments, the score 2 can be provided as a different purpose and type of score to achieve a more orderly burst and flip up under the opening pressure.
In implementation, the nick 2 may include a turning nick 21 and an opening nick 22, and the depth of the turning nick 21 is less than that of the opening nick 22, at this time, the strength of the turning nick 21 is stronger than that of the opening nick 22, and the opening nick 22 is slightly weaker, so when a large amount of gas is generated inside the power battery to form opening pressure, the opening nick 22 is firstly torn and opened, the opening sensitivity of the explosion-proof valve 1 is ensured, then the explosion-proof valve plate 3 is integrally turned up along the turning nick 21 under the internal pressure of the power battery, so that the gas inside the power battery is rapidly released, and finally, along with the gas release and the gas pressure reduction, the whole splashing of the explosion-proof valve plate 3 is prevented.
In the implementation, the upset nick 21 can set up in the long limit middle part of explosion-proof valve block 3, and the explosion-proof valve block 3 of being convenient for overturns along long limit one side for explosion-proof valve block 3 bursts along opening nick 22 rapidly under the opening pressure effect, and turns up along upset nick 21 completely.
Through setting up the upset nick 21 and opening nick 22, both guaranteed that explosion-proof valve 1 normally opens under the effect of predetermined opening pressure, guaranteed to open sensitivity to realize overturning completely in the jack-up, make the inside gas of power battery release rapidly, can guarantee again that explosion-proof valve block 3 is whole complete and do not produce the piece that splashes, improve power battery's security.
In some embodiments, the opening notch 22 may be located in the lower surface of the explosion-proof valve plate 3, so as to change the stress distribution of the lower surface of the explosion-proof valve plate 3, so that the explosion-proof valve plate 3 can rapidly crack along the opening notch 22 under the opening pressure, and the explosion-proof valve 1 can be ensured to crack under the preset opening pressure.
In some embodiments, the cross-sectional shape of the opening score 22 may be set according to actual needs, and preferably, the cross-sectional shape may include any one of the following shapes: triangular, rectangular, trapezoidal, arc.
For example, as shown in fig. 2, the cross section of the opening notch 22 is configured to be a trapezoid, and the trapezoid-shaped opening notch 22 can cause the explosion-proof valve sheet 3 to burst rapidly under the opening pressure.
By optimizing the cross-sectional shape of the nicks, the production and the manufacturing are convenient, the production and the manufacturing efficiency are improved, and the use safety performance of the power battery can be improved.
In some embodiments, the upper surface and the lower surface of the explosion-proof valve plate 3 are provided with turnover scores.
As shown in fig. 2, the reversed scores 21 may include a first surface score and a second surface score, the first surface score is located in the upper surface of the explosion-proof valve plate 3, and the second surface score is located in the lower surface of the explosion-proof valve plate 3. First surface nick and second surface nick are favorable to reducing the resistance of explosion-proof valve block 3 when the upset, help explosion-proof valve block 3 receiving the deformation of power battery internal pressure effect time. Also, the second surface score increases the surface area of the second surface score, increases the toughness of the second surface score, and protects the inversion score 21 from bursting or deforming due to excessive force.
In some embodiments, the cross-sectional shape of the inverted score 21 (such as the first surface score and/or the second surface score) may be set according to actual needs, and preferably, the cross-sectional shape may include any one of the following shapes: triangular, rectangular, trapezoidal, arc.
For example, as shown in fig. 2, the cross section of the first surface score is configured as an arc (such as a circular arc), the cross section of the second surface score is configured as a trapezoid, under the action of the opening pressure, the first surface score reduces the overturning resistance, and the second surface score increases the toughness, so that the explosion-proof valve plate 3 is rapidly burst and completely overturned, but the formation of splashes is avoided.
Through the preferred cross-sectional shape of nick, both made things convenient for manufacturing, improved manufacturing efficiency, can improve power battery safety in utilization performance again.
In some embodiments, the indentation depth of the first surface indentation of the turnover indentation 21 can be set to be not more than 0.03mm according to the production and manufacturing requirements of an actual power battery, so that the indentation depth of the first surface is proper, the production and manufacturing are convenient, and the deformation of the explosion-proof valve plate 3 under the internal pressure of the power battery is facilitated.
In some embodiments, the notch depth of the second surface notch of the inverted notch 21 may be set to be 0.01-0.03mm according to the production and manufacturing requirements of an actual power battery, so that the depth of the second surface notch is appropriate, the production and manufacturing are convenient, the toughness of the second surface notch is improved, and the inverted notch 21 is protected from bursting or deforming due to excessive stress.
In some embodiments, the mounting portion 5 and the explosion-proof valve plate 3 are integrally formed. Through one-time machining forming, the depths of the opening nicks 22 and the overturning nicks 21 can be guaranteed, errors in the machining process are reduced, installation and production are facilitated, and the production efficiency of the explosion-proof valve 1 is improved.
In some embodiments, the reinforcing ribs 4 include a first reinforcing rib and a second reinforcing rib, and the opening direction of the first reinforcing rib and the opening direction of the second reinforcing rib face to two opposite sides of the explosion-proof valve plate 3.
For example, as shown in fig. 1, the opening direction of each of the first reinforcing rib (e.g., an arc shape with an upward opening in the figure) and the second reinforcing rib (e.g., an arc shape with a downward opening in the figure) faces one side of the long side direction and is tangent to the center of the explosion-proof valve plate 3.
For example, as shown in fig. 3, the opening direction of each of the first reinforcing rib (e.g., an arc shape with an opening facing upward in the drawing) and the second reinforcing rib (e.g., an arc shape with an opening facing downward in the drawing) faces one side of the long side direction, and an intersecting region is formed at the middle position of the explosion-proof valve sheet 3.
For example, as shown in fig. 4, the first reinforcing rib (e.g., an arc shape with an opening facing to the left in the drawing) and the second reinforcing rib (e.g., an arc shape with an opening facing to the right in the drawing) each open toward one side in the short side direction, and an intersecting region is formed at the middle position of the explosion-proof valve sheet 3.
It should be noted that whether the first reinforcing rib and the second reinforcing rib are tangent, intersected, and the like on the explosion-proof valve plate 3, and the tangent position, the intersected position, and the like can be determined according to the actual design requirement of the explosion-proof valve 1, and are not limited herein.
Through setting up the strengthening rib that two opening orientation were carried on the back mutually, be favorable to strengthening explosion-proof valve 1's intensity and stability, change explosion-proof valve 1's atress and distribute for explosion-proof valve block 3 is difficult to be strikeed into the piece when power battery internal pressure is too big, improves power battery's security.
In some embodiments, the arc shape of the reinforcing bead 4 is a circular or non-circular arc greater than 0 ° and less than 180 °. Circular arc or non-circular arc make explosion-proof valve 1's atress distribute more evenly, prevent that the middle part of explosion-proof valve block 3 from bursting under the power battery internal pressure effect, avoid forming the piece, improve power battery's security.
Example two
The embodiment of the specification provides a power battery cover plate device, which comprises a top cover plate and an explosion-proof valve 1, wherein the explosion-proof valve 1 is the power battery explosion-proof valve 1 described in any one of the above embodiments, and the explosion-proof valve 1 is installed in an explosion-proof valve hole of the top cover plate. The power battery cover plate device formed by the method can ensure that the power battery explosion-proof valve 1 is opened under the preset detonation sensitivity, ensures that the explosion-proof valve 1 is timely opened and turned over when the internal pressure of the power battery acts, rapidly releases the internal gas of the power battery, and integrally opens the explosion-proof valve plate 3 in explosion to prevent splash fragments and improve the safety and reliability of the power battery cover plate device in use.
EXAMPLE III
The embodiment of the present specification provides a power battery, which includes a battery body and a cover plate device, where the battery body is connected to the cover plate device, and the cover plate device is the power battery cover plate device described in any one of the above embodiments. The power battery formed by the method has high safety and reliability.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for the method embodiments described later, since they correspond to the system, the description is simple, and for the relevant points, reference may be made to the partial description of the system embodiments.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A power battery explosion-proof valve comprises an installation part and an explosion-proof valve block, and is characterized in that nicks and reinforcing ribs are arranged on the explosion-proof valve block, the nicks are located in the inner side direction of the installation part and are arranged in a runway shape, and the reinforcing ribs are arranged on the explosion-proof valve block in an arc shape;
the nick comprises a turnover nick and an opening nick, and the depth of the turnover nick is smaller than that of the opening nick;
and under the action of opening pressure, the reinforcing ribs enable the explosion-proof valve plate to burst along the scores.
2. The power battery explosion-proof valve of claim 1, wherein the opening notch is located in the lower surface of the explosion-proof valve plate;
and/or the overturning scores comprise first surface scores and second surface scores, the first surface scores are positioned in the upper surface of the explosion-proof valve plate, and the second surface scores are positioned in the lower surface of the explosion-proof valve plate.
3. The power cell explosion vent valve of claim 2, wherein in the inverted score, the score depth of the first surface score is no greater than 0.03 mm;
and/or the second surface score has a score depth of 0.01-0.03 mm.
4. The power battery explosion-proof valve of claim 1, wherein the cross-sectional shape of the turnover score comprises any one of the following shapes: triangular, rectangular, trapezoidal and arc;
and/or, the cross-sectional shape of the opening score includes any one of the following shapes: triangular, rectangular, trapezoidal, arc.
5. The power battery explosion-proof valve of claim 1, wherein the mounting portion and the explosion-proof valve plate are of an integrally formed structure.
6. The power battery explosion-proof valve of claim 1, wherein the reinforcing ribs comprise a first reinforcing rib and a second reinforcing rib, and the opening direction of the first reinforcing rib and the opening direction of the second reinforcing rib respectively face two opposite sides of the explosion-proof valve sheet.
7. The power battery explosion-proof valve of claim 1 wherein the arc shape of the reinforcing rib is an arc or a non-arc greater than 0 ° and less than 180 °.
8. A power battery cover plate device comprises a top cover plate and an explosion-proof valve, and is characterized in that the explosion-proof valve is the power battery explosion-proof valve as claimed in any one of claims 1 to 7, and the explosion-proof valve is mounted at an explosion-proof valve hole of the top cover plate.
9. A power battery, comprising a battery body and a cover plate device, wherein the battery body is connected with the cover plate device, and the cover plate device is the power battery cover plate device as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122807558.9U CN217214995U (en) | 2021-11-16 | 2021-11-16 | Explosion-proof valve, power battery cover plate device and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122807558.9U CN217214995U (en) | 2021-11-16 | 2021-11-16 | Explosion-proof valve, power battery cover plate device and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217214995U true CN217214995U (en) | 2022-08-16 |
Family
ID=82750923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122807558.9U Active CN217214995U (en) | 2021-11-16 | 2021-11-16 | Explosion-proof valve, power battery cover plate device and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217214995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117691296A (en) * | 2024-02-04 | 2024-03-12 | 蜂巢能源科技股份有限公司 | Battery cell and battery pack |
-
2021
- 2021-11-16 CN CN202122807558.9U patent/CN217214995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117691296A (en) * | 2024-02-04 | 2024-03-12 | 蜂巢能源科技股份有限公司 | Battery cell and battery pack |
| CN117691296B (en) * | 2024-02-04 | 2024-04-19 | 蜂巢能源科技股份有限公司 | Battery cell and battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114122613A (en) | Explosion-proof valve, power battery cover plate device and power battery | |
| CN215578755U (en) | End cover, end cover assembly, battery monomer, battery and consumer | |
| CN217214995U (en) | Explosion-proof valve, power battery cover plate device and power battery | |
| CN115472997B (en) | Battery end cover assembly, energy storage device and electric equipment | |
| CN205609636U (en) | Explosion -proof piece and secondary cell | |
| CN116569401A (en) | End cover assembly, battery cell, battery and power utilization device | |
| CN215989100U (en) | Casing, battery monomer, battery, consumer and manufacturing equipment of casing | |
| CN116569393A (en) | End cover assembly, battery cell, battery and power utilization device | |
| CN212659598U (en) | Battery top cap and battery | |
| CN218887348U (en) | End cover, battery monomer, battery and consumer | |
| CN116557596B (en) | Explosion-proof valve, end cover assembly, battery and energy storage device | |
| CN217788606U (en) | Battery monomer, battery and consumer | |
| CN109841774B (en) | Battery module | |
| CN216750089U (en) | Power battery top cover structure and power battery | |
| CN221102323U (en) | Battery cell, battery, power utilization device and manufacturing equipment | |
| CN114050361A (en) | Power battery cover plate, power battery cover plate device and power battery | |
| CN218351658U (en) | Battery monomer, battery and consumer | |
| CN115832603B (en) | Shell, battery monomer, battery and electric equipment | |
| CN101645496A (en) | Explosion-proof sheet and explosion-proof structure and power battery of explosion-proof sheet | |
| CN218005153U (en) | A electric core that is used for explosion-proof valve block of electric core and has it | |
| CN216354619U (en) | Battery monomer, battery and power consumption device | |
| CN218334184U (en) | Electricity core explosion-proof piece | |
| CN115210950A (en) | Battery, electric device, and method and device for preparing battery | |
| CN216597765U (en) | Cylinder lithium cell apron | |
| JP2023546798A (en) | Pressure release mechanism, battery unit, battery, power usage device, and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220826 Address after: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Patentee after: Hunan lingpaidazhi Technology Co.,Ltd. Patentee after: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee after: Hengyang Lingpai New Energy Technology Co.,Ltd. Patentee after: Suzhou Lingpai New Energy Technology Co.,Ltd. Patentee after: Hunan Lingpai Dingxin Battery Research Institute Co.,Ltd. Address before: 215335 station 62, room 404, science and Technology Plaza building, East Qianjin Road, Kunshan Development Zone, Suzhou City, Jiangsu Province (cluster registration) Patentee before: Suzhou Lingpai New Energy Technology Co.,Ltd. Patentee before: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee before: Sichuan Lingpai New Energy Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Patentee after: Hunan lingpaidazhi Technology Co.,Ltd. Patentee after: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee after: Hengyang Lingpai New Energy Technology Co.,Ltd. Patentee after: Suzhou Lingpai New Energy Technology Co.,Ltd. Patentee after: Hunan Lingpai New Energy Research Institute Co.,Ltd. Address before: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Patentee before: Hunan lingpaidazhi Technology Co.,Ltd. Patentee before: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee before: Hengyang Lingpai New Energy Technology Co.,Ltd. Patentee before: Suzhou Lingpai New Energy Technology Co.,Ltd. Patentee before: Hunan Lingpai Dingxin Battery Research Institute Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230830 Address after: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Patentee after: Hunan lingpaidazhi Technology Co.,Ltd. Patentee after: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee after: Hengyang Lingpai New Energy Technology Co.,Ltd. Patentee after: Hunan Lingpai New Energy Research Institute Co.,Ltd. Patentee after: Hunan Lingpai Energy Storage Technology Co.,Ltd. Address before: 421681 Jinwei Road, Guiyang Industrial Park, Qidong County, Hengyang City, Hunan Province Patentee before: Hunan lingpaidazhi Technology Co.,Ltd. Patentee before: Hunan Lingpai New Energy Technology Co.,Ltd. Patentee before: Hengyang Lingpai New Energy Technology Co.,Ltd. Patentee before: Suzhou Lingpai New Energy Technology Co.,Ltd. Patentee before: Hunan Lingpai New Energy Research Institute Co.,Ltd. |