CN220163379U - Composite material structure for fireproof heat insulation between battery cores of new energy automobile - Google Patents
Composite material structure for fireproof heat insulation between battery cores of new energy automobile Download PDFInfo
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- CN220163379U CN220163379U CN202221922066.2U CN202221922066U CN220163379U CN 220163379 U CN220163379 U CN 220163379U CN 202221922066 U CN202221922066 U CN 202221922066U CN 220163379 U CN220163379 U CN 220163379U
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- layer
- heat insulation
- composite
- new energy
- mica
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- 239000002131 composite material Substances 0.000 title claims abstract description 64
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 239000010445 mica Substances 0.000 claims abstract description 39
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 39
- 239000012774 insulation material Substances 0.000 claims abstract description 27
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 99
- 239000002657 fibrous material Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000741 silica gel Substances 0.000 claims description 10
- 229910002027 silica gel Inorganic materials 0.000 claims description 10
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 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
Abstract
The utility model discloses a composite material structure for fireproof heat insulation between battery cores of a new energy automobile, which comprises the following components: the composite heat insulation material layer, the both sides on composite heat insulation material layer are provided with the mica layer respectively, two the mica layer is compound respectively to be set up in the both sides surface on mica layer, and the outside on every mica layer is provided with the fire prevention bed course, the fire prevention bed course complex set up in the outside surface on mica layer. The utility model can solve the technical problems that the prior material is difficult to resist high-temperature flame and limit temperature conduction in the thermal runaway process of the battery.
Description
Technical Field
The utility model relates to the technical field of automobile battery core fireproof materials, in particular to a composite material structure for fireproof heat insulation among battery cores of a new energy automobile.
Background
When a lithium battery is selected for a new energy automobile taking the lithium battery as power, safety and endurance mileage and charge and discharge performance are required to be considered. Generally, a cell with high energy density and high charge-discharge performance is generally at a higher risk of thermal runaway. (the thermal spread refers to the occurrence of thermal runaway caused by single battery cell, the thermal runaway caused by single battery cell is burnt, the thermal runaway caused by single battery cell is spread to the nearby battery cell, the whole battery pack is burnt, even accidents such as explosion happen.) by using better thermal safety materials, the occurrence of thermal runaway spread can be effectively restrained, and therefore a safety foundation is laid for improving the dynamic performance of the new energy automobile. The thermal protection material between the electric cores is a key level of thermal runaway protection of the new energy automobile, and is mainly used for blocking the conduction of high temperature between the electric cores. In recent years, as the capacity of single battery cells is continuously increased, the requirements on fireproof heat-insulating materials among the battery cells are also increasing. The mica tape, aerogel felt and other materials currently used in the industry do not alone provide adequate protection. The use of new composite materials and structures has been a major trend.
Disclosure of Invention
The utility model provides a fireproof and heat-insulating composite material structure used between battery cells of a new energy automobile, which can solve the technical problems that the existing material is difficult to resist high-temperature flame and limit temperature conduction in the thermal runaway process of a battery.
In order to solve the technical problems, the utility model provides a composite material structure for fireproof heat insulation between battery cores of a new energy automobile, which comprises the following components:
the composite heat insulation material layer, the both sides on composite heat insulation material layer are provided with the mica layer respectively, two the mica layer is compound respectively to be set up in the both sides surface on composite heat insulation material layer, and the outside on every mica layer is provided with the fire prevention bed course, the fire prevention bed course complex set up in the outside surface on mica layer.
Preferably, in the above technical solution, the composite heat insulation material layer is made of heat-resistant silica gel.
As a preferable aspect of the above-mentioned method, an auxiliary filler is provided in the heat-resistant silica gel material.
As the preferable choice of the technical proposal, the auxiliary filler is hollow glass microsphere.
Preferably, the fire protection cushion layer comprises a layer of fibrous material.
As a preferable aspect of the above technical solution, the fireproof cushion further includes a modified coating layer, and the modified coating layer is disposed on a surface of the fiber material layer.
Preferably, the fiber material layer is a glass fiber layer or a rock wool fiber layer.
Preferably, the modified coating is a coating composed of silicone resin and filler.
As the preferable mode of the technical scheme, the thickness of the composite heat insulation material layer is 0.5-5.0mm, the thickness of the mica layer is 0.1-1.2mm, and the thickness of the fireproof cushion layer is 0.2-1.5mm.
As the preferable mode of the technical scheme, the thickness of the two mica layers on two sides of the composite heat insulation material layer is equal, and the thickness of the two fireproof cushion layers positioned on the outer sides of the mica layers is equal.
The utility model provides a composite material structure for fireproof heat insulation between battery cores of a new energy automobile, which comprises the following components: the composite heat insulation material layer is characterized in that mica layers are respectively arranged on two sides of the composite heat insulation material layer, the two mica layers are respectively and compositely arranged on two side surfaces of the mica layers, a fireproof cushion layer is arranged on the outer side of each mica layer, the fireproof cushion layer is compositely arranged on the outer side surface of the mica layer, the composite material has better fireproof heat insulation performance through detection, in addition, a 5-layer structure of the composite material can be in a symmetrical structure taking the composite heat insulation layer as the center, and the composite material has the same protection capability on thermal runaway on any side; the protective capability of a specific side can be enhanced according to actual engineering requirements, and in addition, the fireproof heat insulation material not only has better fireproof and high-temperature resistant performance, but also has better mechanical performance.
The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.
Drawings
FIG. 1 shows a schematic structural diagram of a composite material structure for fire prevention and heat insulation between battery cells of a new energy automobile according to an embodiment of the utility model;
FIG. 2 is a schematic view showing the structure of a fire protection mat according to an embodiment of the present utility model;
in the figure: 10. a composite heat insulating material layer; 20. a mica layer; 30. a fire protection cushion layer; 40. a resin binder layer; 101. a heat-resistant silica gel material; 102. auxiliary filler; 301. modifying the coating; 302. a layer of fibrous material.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions according to the embodiments of the present utility model will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, an embodiment of the present utility model provides a composite structure for fireproof and heat insulation between battery cells of a new energy automobile, including:
the composite heat insulation material layer 10, the both sides of composite heat insulation material layer 10 are provided with mica layer 20 respectively, and two mica layers 20 are compound to be set up in the both sides surface of composite heat insulation material layer 10 respectively, and the outside of every mica layer 20 is provided with fire prevention bed course 30, and fire prevention bed course 30 is compound to be set up in the outside surface of mica layer 20.
The embodiment provides a composite material structure for fireproof heat insulation between battery cores of new energy automobiles, which comprises the following components: the composite material of the embodiment has better fireproof heat insulation performance after being provided with the fireproof heat insulation grids, and in addition, the composite material of the embodiment has a five-layer structure which can be in a symmetrical structure taking the composite heat insulation layer as the center, and has the same protection capability on thermal runaway of any side; the protection capability can also be enhanced on a specific side according to actual engineering requirements, in addition, the composite material not only has better fire resistance and high temperature resistance, but also has better mechanical properties, and when the composite material is used, the composite material of the embodiment is arranged between the electric cores of the new energy battery, has the functions of insulation, heat insulation and heat conduction prevention, and has better fire resistance, especially can resist the flame and high temperature generated in the thermal runaway process of the battery, so that the composite material of the embodiment can solve the technical problems that the existing material is difficult to resist the high temperature flame and limit the temperature conduction in the thermal runaway process of the battery.
In addition, a resin binder layer 40 is disposed between the composite heat insulation material layer 10 and the mica layer 20 in this embodiment, a resin binder layer 40 is disposed between the mica layer 20 and the fireproof cushion layer 30, the composite connection between the composite heat insulation material layer 10 and the mica layer 20 is achieved through the resin binder layer 40, and the composite connection between the mica layer 20 and the fireproof cushion layer 30 is achieved through the resin binder layer 40.
In a further implementation of this embodiment, the composite thermal insulation material layer 10 includes a heat resistant silica gel material 101.
In this embodiment, the composite heat insulation material layer 10 includes the heat-resistant silica gel material 101, so that the composite material has good heat insulation performance and a certain compressibility, and especially, the impact resistance can be improved when the battery is in thermal runaway.
In a further implementation of the present embodiment, the heat-resistant silica gel material 101 is provided with an auxiliary filler 102.
In this embodiment, the auxiliary filler 102 may be filled in the heat-resistant silica gel material 101 according to the need, and the performance of the heat-resistant silica gel material 101 may be improved by the auxiliary filler 102 according to the need.
In a further implementation of this embodiment, the auxiliary filler 102 is hollow glass beads.
In this embodiment, hollow glass beads are filled in the heat-resistant silica gel material 101, so that the composite heat insulation material layer 10 has good heat insulation performance and certain compressibility. When the ceramic material is subjected to high temperature exceeding 600 ℃, ceramic reaction can occur, and a hard and brittle porous ceramic-like material is formed in situ, so that the ceramic material can resist high temperature exceeding 1200 ℃.
In a further implementation of this embodiment, fire protection cushion 30 includes a layer of fibrous material 302.
The fibrous material layer in this embodiment provides better thermal insulation and improves the flame and jet impact resistance of the overall structure through the fibrous structure.
In a further implementation of this embodiment, the fire protection cushion 30 further includes a modifying coating 301, where the modifying coating 301 is disposed on a surface of the fibrous material layer 302.
The modified coating 301 in this embodiment can enhance the properties of the fibrous material layer 302.
In a further implementation of the present embodiment, the fiber material layer 302 is a glass fiber layer or a rock wool fiber layer.
In a further implementation of this example, the modified coating 301 is a coating of silicone and filler.
The modified coating 301 in this embodiment is a coating composed of silicone and filler, and is used to block high temperature heat flow under high temperature conditions.
In a further possible implementation of this example, the thickness of the composite insulation material layer 10 is 0.5-5.0mm, the thickness of the mica layer 20 is 0.1-1.2mm, and the thickness of the fire protection cushion layer 30 is 0.2-1.5mm.
The thickness of each composite layer of the composite material in the embodiment is more reasonable, and the composite material has the characteristic of light weight while ensuring the heat insulation performance of the composite material.
In a further embodiment of the present example, the two mica layers 20 on both sides of the composite insulation layer 10 have equal thickness, and the two fire protection mats 30 located outside the mica layers 20 have equal thickness.
In this embodiment, the thickness of the two mica layers 20 is equal, and the thickness of the two fireproof cushion layers 30 located outside the mica layers 20 is equal, which can make the overall structure of the composite heat insulation material layer 10 more symmetrical, and can have better protection performance.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (7)
1. A composite material structure for fire prevention and heat insulation between battery cores of a new energy automobile, which is characterized by comprising:
the composite heat insulation material layer, the both sides on composite heat insulation material layer are provided with the mica layer respectively, two the mica layer is compound respectively to be set up in the both sides surface on composite heat insulation material layer, and the outside on every mica layer is provided with the fire prevention bed course, the fire prevention bed course complex set up in the outside surface on mica layer.
2. The composite material structure for fireproof heat insulation between battery cells of a new energy automobile according to claim 1, wherein the composite heat insulation material layer is made of heat-resistant silica gel.
3. The composite structure for fire and heat insulation between cells of a new energy automobile of claim 1 wherein said fire protection mat comprises a layer of fibrous material.
4. The composite structure for fire and heat insulation between battery cells of a new energy automobile of claim 3, wherein the fire protection cushion further comprises a modified coating layer, the modified coating layer being disposed on the surface of the fiber material layer.
5. The composite material structure for fire prevention and heat insulation between battery cells of a new energy automobile according to claim 3, wherein the fiber material layer is a glass fiber layer or a rock wool fiber layer.
6. The composite material structure for fireproof heat insulation between battery cells of a new energy automobile according to claim 1, wherein the thickness of the composite heat insulation material layer is 0.5-5.0mm, the thickness of the mica layer is 0.1-1.2mm, and the thickness of the fireproof cushion layer is 0.2-1.5mm.
7. The composite material structure for fireproof heat insulation between battery cells of a new energy automobile according to claim 1, wherein the thickness of two mica layers on two sides of the composite heat insulation material layer is equal, and the thickness of two fireproof cushion layers on the outer sides of the mica layers is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221922066.2U CN220163379U (en) | 2022-07-25 | 2022-07-25 | Composite material structure for fireproof heat insulation between battery cores of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221922066.2U CN220163379U (en) | 2022-07-25 | 2022-07-25 | Composite material structure for fireproof heat insulation between battery cores of new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220163379U true CN220163379U (en) | 2023-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221922066.2U Active CN220163379U (en) | 2022-07-25 | 2022-07-25 | Composite material structure for fireproof heat insulation between battery cores of new energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220163379U (en) |
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2022
- 2022-07-25 CN CN202221922066.2U patent/CN220163379U/en active Active
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