CN220358151U - Lithium battery with explosion-proof flame retardant structure - Google Patents
Lithium battery with explosion-proof flame retardant structure Download PDFInfo
- Publication number
- CN220358151U CN220358151U CN202321800089.0U CN202321800089U CN220358151U CN 220358151 U CN220358151 U CN 220358151U CN 202321800089 U CN202321800089 U CN 202321800089U CN 220358151 U CN220358151 U CN 220358151U
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- Prior art keywords
- explosion
- bin
- lithium battery
- proof
- flame
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 65
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 57
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003063 flame retardant Substances 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000012782 phase change material Substances 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002269 spontaneous 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
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium battery with an explosion-proof flame-retardant structure, which comprises a lithium battery core body and a battery cover plate arranged on the lithium battery core body, wherein a cooling bin is sleeved outside the lithium battery core body, a flame-retardant bin is sleeved outside the cooling bin, a heat-insulating bin is sleeved outside the flame-retardant bin, an explosion-proof shell is sleeved outside the heat-insulating bin, the bottom surface of the battery cover plate is covered on the top ends of the cooling bin, the flame-retardant bin, the heat-insulating bin and the explosion-proof shell, and the battery cover plate is welded with the explosion-proof shell. The lithium battery core is cooled by the waxy phase change material in the cooling bin, so that the combustion of the lithium battery core due to overhigh temperature is avoided, and the combustion explosion of the lithium battery is prevented by the flame retardant bin, so that the flame retardant property of the lithium battery is improved; the temperature of the lithium battery core body is separated from the explosion-proof shell through the heat insulation bin, so that embrittlement of the explosion-proof shell caused by high temperature of the lithium battery core body is avoided, the explosion-proof performance of the explosion-proof shell is enhanced, and the explosion-proof performance of the lithium battery is further improved.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery with an explosion-proof flame-retardant structure.
Background
Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material. The chemical characteristics of lithium metal are very active, so that the processing, storage and use of lithium metal have very high requirements on environment. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The lithium metal battery of the fifth generation product of the rechargeable battery is born in 1996, and the safety, the specific capacity, the self-discharge rate and the cost performance ratio of the lithium metal battery are all superior to those of the lithium ion battery. Due to its own high technical requirements, only a few countries' companies are producing such lithium metal batteries.
The lithium battery can take place to overcharge in the normal condition charging process, is needle-shaped lithium metal crystallization everywhere on the pole piece after many times overcharging, and the puncture point is everywhere all takes place little short circuit, and then leads to the inside high temperature of battery to make the material burn explosion, and the shell explosion-proof performance of current lithium battery is weaker moreover, receives the inside high temperature influence of battery can lead to the shell to become fragile, leads to the shell to be broken easily, can produce the piece impact during explosion, harm user's personal safety easily, therefore the explosion-proof flame retardant performance of current lithium battery is relatively poor.
Disclosure of Invention
The utility model aims to provide a lithium battery with an explosion-proof flame-retardant structure, so as to solve the problem of poor explosion-proof flame-retardant performance of the lithium battery in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a lithium cell with explosion-proof fire-retardant structure, includes the lithium cell core and installs battery cover plate on the lithium cell core, the lithium cell core overcoat has the cooling storehouse, the cooling storehouse overcoat has fire-retardant storehouse, fire-retardant storehouse overcoat has thermal-insulated storehouse, thermal-insulated storehouse overcoat has explosion-proof shell, battery cover plate's bottom surface lid is in on cooling storehouse, fire-retardant storehouse, thermal-insulated storehouse and the top of explosion-proof shell, just battery cover plate with explosion-proof shell welds mutually.
Further, the cooling bin is of a cavity structure, and the cavity is filled with waxy phase change materials.
Further, the flame-retardant bin is made of flame-retardant plates.
Further, the heat insulation bin is made of vacuum heat insulation plates.
Further, the explosion-proof housing is made of an explosion-proof plate.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the lithium battery core body, the waxy phase change material in the cooling bin is used for cooling the lithium battery core body, so that the combustion of the lithium battery core body due to the overhigh temperature is avoided, and meanwhile, the flame-retardant bin is matched for preventing the combustion of the lithium battery from explosion, so that the flame retardant property of the lithium battery is improved;
2. the temperature of the lithium battery core body is separated from the explosion-proof shell through the heat insulation bin, so that embrittlement of the explosion-proof shell caused by high temperature of the lithium battery core body is avoided, the explosion-proof performance of the explosion-proof shell is enhanced, and the explosion-proof performance of the lithium battery is further improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
fig. 1 is a cross-sectional view of the structure of the present utility model.
In the figure: 1. a lithium battery core; 2. a battery cover plate; 3. cooling bin; 4. a flame-retardant bin; 5. a heat insulation bin; 6. an explosion-proof housing.
Detailed Description
For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the utility model, a lithium battery with an explosion-proof flame-retardant structure is provided.
Embodiment one:
as shown in fig. 1, a lithium battery with an explosion-proof flame-retardant structure comprises a lithium battery core body 1 and a battery cover plate 2 arranged on the lithium battery core body 1, wherein a cooling bin 3 is sleeved outside the lithium battery core body 1, a flame-retardant bin 4 is sleeved outside the cooling bin 3, a heat-insulating bin 5 is sleeved outside the flame-retardant bin 4, an explosion-proof shell 6 is sleeved outside the heat-insulating bin 5, the bottom surface of the battery cover plate 2 is covered on the top ends of the cooling bin 3, the flame-retardant bin 4, the heat-insulating bin 5 and the explosion-proof shell 6, and the battery cover plate 2 is welded with the explosion-proof shell 6;
embodiment two:
the interior of the cooling bin 3 is of a cavity structure, and the cavity is filled with waxy phase change materials, so that the cooling bin 3 has good cooling performance;
the flame-retardant bin 4 is made of flame-retardant plates and has good flame-retardant performance;
the heat insulation bin 5 is made of vacuum heat insulation boards and has good heat insulation performance;
the explosion-proof shell 6 is made of an explosion-proof plate and has good explosion-proof performance;
the working principle of the utility model is as follows:
firstly, the lithium battery core body 1 is cooled through the cooling bin 3, so that the spontaneous combustion phenomenon of the lithium battery core body 1 caused by high temperature is avoided, and meanwhile, the flame retardant performance of the lithium battery core body 1 is further enhanced by matching with the flame retardant bin 4;
then separate the temperature of lithium cell core 1 and explosion-proof shell 6 through thermal-insulated storehouse 5, avoid the high temperature conduction of lithium cell core 1 to explosion-proof shell 6 on and lead to explosion-proof shell 6 embrittlement, strengthened the explosion-proof performance of explosion-proof shell 6, produce the piece impact when avoiding the lithium cell explosion to can not cause the injury to the human body, consequently the utility model discloses can effectually improve the explosion-proof flame retardant property of lithium cell, improve the security when the lithium cell uses.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a lithium battery with explosion-proof fire-retardant structure, includes lithium battery core (1) and installs battery apron (2) on lithium battery core (1), its characterized in that: the lithium battery core body (1) is sleeved with a cooling bin (3), the cooling bin (3) is sleeved with a flame-retardant bin (4), the flame-retardant bin (4) is sleeved with a heat insulation bin (5), the heat insulation bin (5) is sleeved with an explosion-proof shell (6), the bottom surface of the battery cover plate (2) is covered on the top ends of the cooling bin (3), the flame-retardant bin (4), the heat insulation bin (5) and the explosion-proof shell (6), and the battery cover plate (2) is welded with the explosion-proof shell (6).
2. The lithium battery with an explosion-proof and flame-retardant structure according to claim 1, wherein: the cooling bin (3) is of a cavity structure, and the cavity is filled with waxy phase change materials.
3. The lithium battery with an explosion-proof and flame-retardant structure according to claim 1, wherein: the flame-retardant bin (4) is made of flame-retardant plates.
4. The lithium battery with an explosion-proof and flame-retardant structure according to claim 1, wherein: the heat insulation bin (5) is made of vacuum heat insulation plates.
5. The lithium battery with an explosion-proof and flame-retardant structure according to claim 1, wherein: the explosion-proof housing (6) is made of an explosion-proof plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321800089.0U CN220358151U (en) | 2023-07-10 | 2023-07-10 | Lithium battery with explosion-proof flame retardant structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321800089.0U CN220358151U (en) | 2023-07-10 | 2023-07-10 | Lithium battery with explosion-proof flame retardant structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220358151U true CN220358151U (en) | 2024-01-16 |
Family
ID=89477676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321800089.0U Active CN220358151U (en) | 2023-07-10 | 2023-07-10 | Lithium battery with explosion-proof flame retardant structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220358151U (en) |
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2023
- 2023-07-10 CN CN202321800089.0U patent/CN220358151U/en active Active
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