CN211555942U - Honeycomb type battery case - Google Patents
Honeycomb type battery case Download PDFInfo
- Publication number
- CN211555942U CN211555942U CN201922495701.8U CN201922495701U CN211555942U CN 211555942 U CN211555942 U CN 211555942U CN 201922495701 U CN201922495701 U CN 201922495701U CN 211555942 U CN211555942 U CN 211555942U
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- China
- Prior art keywords
- battery
- explosion
- thin
- wall
- honeycomb
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- 238000004512 die casting Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003466 welding 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a honeycomb formula battery case, including top cap, bottom, battery case, wherein: the battery case top is fixed be provided with the top cap just the fixed bottom that is provided with in battery case bottom, battery case and top cap and bottom surround and form inclosed cavity structure, be provided with explosion-proof equipment just on the battery case explosion-proof equipment comprises a plurality of thin wall grooves, the utility model discloses the explosion-proof equipment of honeycomb's design can outwards expand under the effect of pressure, can alleviate the battery because the expansion problem that gaseous production arouses to the relief valve can show the reliability that improves the battery, and explosion-proof valve is direct and outside direct when battery internal pressure reaches explosion-proof valve explosion-proof pressure value, loses heart fast, can effectively avoid the battery inflation explosion.
Description
Technical Field
The utility model belongs to the technical field of the battery preparation, concretely relates to honeycomb formula battery case.
Background
With the rapid development of electronic products, batteries are widely used in the field of large-sized electric devices such as mobile communication devices, portable electronic device electric tools, electric bicycles, electric vehicles, etc., however, since most of the aluminum-case batteries are high-capacity batteries, safety concerns that have been paid extensive attention to are still restricting further development.
However, once the battery is broken by external forces such as collision and impact, the inside of the aluminum-shell battery has a short circuit between the positive electrode and the negative electrode, which can cause irreversible change of the structure of the positive electrode active material and decomposition of the electrolyte, and generate a large amount of gas, which can cause the battery to rapidly expand, and if the battery is not processed in time, the battery can explode, which threatens the safety of people.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a honeycomb formula battery case to solve foretell technical problem.
In order to achieve the above object, the utility model provides a following technical scheme: a honeycomb battery case comprising a top cover, a bottom cover, a battery case, wherein:
a top cover is fixedly arranged at the top of the battery shell, and a bottom cover is fixedly arranged at the bottom of the battery shell;
the battery shell, the top cover and the bottom cover are encircled to form a closed hollow cavity structure;
the top cover is provided with a pressure release valve, and the top cover is provided with a positive electrode electrically connected with the positive electrode of the battery and a negative electrode electrically connected with the negative electrode of the battery;
an explosion-proof device is arranged on the battery shell and consists of a plurality of thin-wall grooves;
the thin-wall grooves are recessed towards the interior of the battery shell, and the shapes and the sizes of the adjacent thin-wall grooves are consistent;
the wall thickness of the thin-wall groove is consistent and is 0.1nm-0.3 nm.
Preferably, the explosion-proof device is designed to be of a honeycomb structure.
Preferably, the explosion-proof device is composed of a plurality of thin-wall grooves, and the thin-wall grooves are of a regular hexagon structure;
the thin-wall groove array is arranged on the battery shell, and the thin-wall grooves arranged in the array form a honeycomb structure.
Preferably, the battery shell is made of aluminum material and the inner wall of the battery shell is provided with a nickel plating layer.
Preferably, the thin-wall groove is manufactured by a die-casting process.
The utility model discloses a technological effect and advantage: the honeycomb battery case:
1. the design through adopting honeycomb structure with explosion-proof equipment can make the battery installation firm, and structural strength is high, when the battery takes place the striking, can effectively alleviate the damage degree of battery, and furthest's absorption and dispersion impact prevent to make the battery damage because the striking simultaneously.
2. The explosion-proof device of honeycomb's design can outwards expand under the effect of pressure, can alleviate the battery because the inflation problem that gaseous production arouses to the reliability that improves the battery can be showing to the relief valve, and explosion-proof valve is direct and outside direct-through when battery internal pressure reaches explosion-proof valve pressure value, and quick disappointing can effectively avoid the battery inflation explosion.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention during expansion;
fig. 3 is an exploded view of the present invention.
In the figure: 1-top cover, 2-bottom cover, 3-battery shell, 4-explosion-proof device, 5-thin wall groove;
11-pressure relief valve, 12-anode and 13-cathode.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 3 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a honeycomb formula battery case as shown in 1-3 in the picture, including top cap 1, bottom 2, battery case 3, wherein:
the top of the battery shell 3 is fixedly provided with a top cover 1, the bottom of the battery shell 3 is fixedly provided with a bottom cover 2, and the top cover 1 is always placed upwards when the battery is placed.
The battery shell 3, the top cover 1 and the bottom cover 2 are enclosed to form a closed hollow cavity structure, and the battery shell 3, the top cover 1 and the bottom cover 2 can be fixedly connected in a welding mode.
Be provided with relief valve 11 on top cap 1, relief valve 11 can show the reliability that improves the battery, and explosion-proof valve 11 is direct when the battery internal pressure reaches 11 pressure values that explode of explosion-proof valve, and quick disappointing avoids the battery explosion with outside straight-through.
The top cover 1 is provided with a positive electrode 12 electrically connected with a battery positive electrode and a negative electrode 13 electrically connected with a battery negative electrode, wherein the battery positive electrode is connected with the positive electrode 12 through a lead, and the battery negative electrode is connected with the negative electrode 13 through a lead.
The battery shell 3 is provided with the explosion-proof device 4, the explosion-proof device 4 is composed of a plurality of thin-wall grooves 5, when the battery is in short circuit or overcharged, irreversible change of a positive active material structure and decomposition of electrolyte can be caused, a large amount of gas is generated, the pressure inside the battery is increased due to the generation of the large amount of gas, the explosion-proof device 4 can relieve the expansion problem of the battery caused by the generation of the gas, the volume expansion of the battery can be relieved, and the expansion explosion and explosion of the battery can be prevented
The thin-wall grooves are recessed towards the interior of the battery shell 3, and the shapes and the sizes of the adjacent thin-wall grooves 5 are consistent;
the wall thickness of the thin-wall groove 5 is consistent, the wall thickness of the thin-wall groove 5 is 0.1nm-0.3nm, and the selection of the wall thickness of the thin-wall groove 5 can ensure that the thin-wall groove 5 can expand outwards under the action of pressure when the internal pressure of the battery is too high while ensuring the strength of the battery shell 3, so that the problem of volume expansion of the battery is solved.
Specifically, explosion-proof equipment 4 is honeycomb type structural design, explosion-proof equipment 4 comprises a plurality of thin wall recesses 5 just thin wall recesses 5 are regular hexagon structure, thin wall recesses 5 array sets up on battery case 3 and the combination of the thin wall recesses 5 that the array set up forms honeycomb, and the design that adopts honeycomb can make the battery installation firm, and structural strength is high, when the battery takes place the striking, can effectively alleviate the damage degree of battery, and furthest's absorption and dispersion impact prevent to make the inside short circuit of battery owing to the striking simultaneously.
Specifically, the battery shell 3 is made of an aluminum material, the aluminum material is adopted by the battery shell 3, so that the whole battery has good heat dissipation performance and light weight, and the inner wall of the battery shell 3 is provided with a nickel-plated layer, so that the inner wall of the battery shell 3 can be effectively prevented from being corroded by electrolyte inside the battery.
Specifically, the thin-wall groove 5 is manufactured by adopting a die-casting process, the die-casting process combines external pressure application and vacuum suction casting, and the material has high fluidity during die-casting, so that the die-cast hexagonal thin-wall groove 5 has higher strength.
The working principle is as follows: the honeycomb battery case:
when the battery is normally used, the battery can be stably installed through the design that the explosion-proof device 4 adopts the honeycomb structure, the structural strength is high, when the battery is impacted, the damage degree of the battery can be effectively reduced, and meanwhile, the impact force is absorbed and dispersed to the maximum extent, so that the battery is prevented from being damaged due to the impact.
If because of the battery diaphragm damage, the damaged or outside collision reason such as outside of pole piece leads to the positive negative pole direct contact of battery, take place inside short circuit, can arouse the decomposition of the irreversible change and electrolyte of anodal active material structure, can produce a large amount of gases, lead to the inside pressure of battery to increase, the explosion-proof equipment 4 of honeycomb's design can be outwards expanded under the effect of pressure, can alleviate the battery because the inflation problem that gaseous production arouses, and relief valve 11 can show the reliability that improves the battery, explosion-proof valve 11 directly leads to with the outside when the battery internal pressure reaches explosion-proof valve 11 pressure value, quick release of air, avoid the battery inflation explosion.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a honeycomb formula battery case, includes top cap (1), bottom (2), battery case (3), its characterized in that:
a top cover (1) is fixedly arranged at the top of the battery shell (3), and a bottom cover (2) is fixedly arranged at the bottom of the battery shell (3);
the battery shell (3), the top cover (1) and the bottom cover (2) are encircled to form a closed hollow cavity structure;
the top cover (1) is provided with a pressure release valve (11), and the top cover (1) is provided with an anode (12) electrically connected with the anode of the battery and a cathode (13) electrically connected with the cathode of the battery;
an explosion-proof device (4) is arranged on the battery shell (3), and the explosion-proof device (4) is composed of a plurality of thin-wall grooves (5);
the thin-wall grooves are recessed towards the interior of the battery shell (3), and the shapes and the sizes of the adjacent thin-wall grooves (5) are consistent;
the wall thickness of the thin-wall groove (5) is consistent, and the wall thickness of the thin-wall groove (5) is 0.1nm-0.3 nm.
2. The honeycomb battery can according to claim 1, wherein: the explosion-proof device (4) is designed to be of a honeycomb structure.
3. The honeycomb battery can according to claim 1, wherein: the explosion-proof device (4) is composed of a plurality of thin-wall grooves (5), and the thin-wall grooves (5) are of a regular hexagon structure;
the thin-wall grooves (5) are arranged on the battery shell (3) in an array mode, and the thin-wall grooves (5) arranged in the array mode are combined to form a honeycomb structure.
4. The honeycomb battery can according to claim 1, wherein: the battery shell (3) is made of aluminum material, and a nickel plating layer is arranged on the inner wall of the battery shell (3).
5. The honeycomb battery can according to claim 3, wherein: the thin-wall groove (5) is manufactured by adopting a die-casting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495701.8U CN211555942U (en) | 2019-12-31 | 2019-12-31 | Honeycomb type battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495701.8U CN211555942U (en) | 2019-12-31 | 2019-12-31 | Honeycomb type battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211555942U true CN211555942U (en) | 2020-09-22 |
Family
ID=72489100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922495701.8U Active CN211555942U (en) | 2019-12-31 | 2019-12-31 | Honeycomb type battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211555942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084735A (en) * | 2022-07-01 | 2022-09-20 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
-
2019
- 2019-12-31 CN CN201922495701.8U patent/CN211555942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084735A (en) * | 2022-07-01 | 2022-09-20 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
| CN115084735B (en) * | 2022-07-01 | 2024-04-19 | 重庆大学 | High-strength lithium ion battery composite material with honeycomb sandwich structure |
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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: A honeycomb battery shell Effective date of registration: 20231225 Granted publication date: 20200922 Pledgee: Nanjing Zidong sub branch of Bank of Nanjing Co.,Ltd. Pledgor: Jiangsu jingjujing Environmental Protection Technology Co.,Ltd. Registration number: Y2023980073921 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |