CN218123533U - Composite heat-proof sleeve for battery protection - Google Patents
Composite heat-proof sleeve for battery protection Download PDFInfo
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- CN218123533U CN218123533U CN202221660123.4U CN202221660123U CN218123533U CN 218123533 U CN218123533 U CN 218123533U CN 202221660123 U CN202221660123 U CN 202221660123U CN 218123533 U CN218123533 U CN 218123533U
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- proof sleeve
- silicone rubber
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- 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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Abstract
The utility model provides a battery protection is with compound heat-proof sleeve is divided into the four layers by interior to exterior, and the first layer is heat conduction silicon rubber, and the second floor is tetrafluoroethylene net cloth, the fire-retardant silicon rubber of third layer pottery, and the fourth layer is aramid fiber felt layer. The composite heat-proof sleeve for protecting the battery can prevent sharp objects from being scratched; the heat-insulating sleeve is prevented from dissipating heat quickly in the charging process; when a certain battery fails and is subjected to explosion combustion, and open fire at 800-1000 ℃ is generated, the composite heat-proof sleeve does not undergo explosion cracking, and flame does not spread to adjacent batteries. The utility model discloses the manufacturing method of above-mentioned combined material is provided simultaneously.
Description
Technical Field
The utility model relates to a thermal protection material for battery protection.
Background
In recent years, electric vehicles have been widely developed and applied by virtue of their advantages of cleanness and no pollution, but the phenomenon that the entire vehicle is burnt by battery combustion is also revealed. According to market requirements, a protective material which can prevent the composite heat-insulating sleeve from explosion cracking and flame from spreading to adjacent areas under the condition that open fire at 800-1000 ℃ is generated when a battery fails and explodes needs to be developed. Meanwhile, the protective sleeve can prevent sharp objects from being scratched during normal use, and the heat-insulating sleeve can realize quick heat dissipation during charging.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a composite heat-proof sleeve for battery protection and a preparation method thereof, the composite heat-proof sleeve can not explode and crack under the condition that open fire at 800-1000 ℃ is generated when the battery fails and explodes, and flame does not spread to adjacent areas; meanwhile, the protective sleeve can prevent sharp objects from being scratched in normal use, and the heat-insulating sleeve can realize quick heat dissipation in the charging process.
In order to solve the technical problem, the utility model discloses a battery protection is with compound heat insulating sleeve's technical scheme is: a composite heat-proof sleeve for protecting a battery is divided into four layers from inside to outside, wherein the first layer is a heat-conducting silicone rubber layer which is formed by die pressing in a die at 180 ℃ through curing, the second layer is tetrafluoroethylene gridding cloth, the third layer is a ceramic flame-retardant silicone rubber layer, and the fourth layer is an aramid felt layer.
In the technical scheme, the heat-conducting silicon rubber can dissipate heat generated in the process of charging or using the battery, so that heat accumulation is prevented; the tetrafluoroethylene mesh cloth serving as a framework material can enhance the mechanical strength of the heat-proof sleeve, and the mesh shape of the tetrafluoroethylene mesh cloth is also convenient for heat dissipation; the ceramic flame-retardant silicone rubber has the same performance as that of a common polymer at normal temperature, but can form a ceramic product after being ignited at high temperature, and can bear certain impact force, so that the ceramic flame-retardant silicone rubber can resist ablation of open fire at 1000 ℃ and maintain the integrity of products; the outermost aramid felt layer has the anti-puncturing effect, can prevent the ceramic flame-retardant silicone rubber from being punctured and damaged, keeps the structural integrity and simultaneously can play a certain role in mechanical strength.
Therefore, the composite heat-proof sleeve for protecting the battery can prevent sharp objects from being scratched; the heat-insulating sleeve is prevented from dissipating heat quickly in the charging process; when one battery fails and is subjected to explosion combustion, and open fire at 800-1000 ℃ is generated, the composite heat-proof sleeve is not subjected to explosion cracking, and flame does not spread to adjacent batteries.
Preferably, the thickness of the heat-conducting silicone rubber layer is 0.4-0.6mm, the thickness of the tetrafluoroethylene mesh fabric is 0.4-0.6mm, the thickness of the ceramic flame-retardant silicone rubber layer is 1.4-1.6mm, and the thickness of the aramid felt layer is 0.2-0.3mm.
Preferably, the thickness of the heat-conducting silicone rubber layer is 0.5mm, the thickness of the tetrafluoroethylene mesh fabric is 0.5mm, the thickness of the ceramic flame-retardant silicone rubber layer is 1.5mm, and the thickness of the aramid felt layer is 0.25mm.
The utility model discloses the method of preparing above-mentioned battery protection is with compound heat insulating sleeve of preventing includes following process steps:
(1) pressing heat-conducting silicon rubber into a blank;
(2) cutting the tetrafluoroethylene mesh cloth according to the outline size of the blank;
(3) treating the lap joint part by adopting a sodium naphthalene solution;
(4) sleeving the treated tetrafluoroethylene mesh cloth on the blank;
(5) adopting ceramic flame-retardant silicon rubber to be pressed and molded;
(6) and (3) adhering an aramid felt to the outer surface of the ceramic flame-retardant silicon rubber.
Wherein, the step (1) is that the heat-conducting silicon rubber is solidified and molded in a mold at 180 ℃ by mold pressing.
Wherein the sodium naphthalene solution treatment method in the preparation step (3) comprises the following steps:
(1) Adding a certain amount of metal sodium into a tetrahydrofuran and naphthalene solution, wherein the mass fraction of the metal sodium is controlled to be 3% -5%, and stirring at room temperature for about 2 hours until the solution is dark brown or black;
(2) Soaking the part to be treated with tetrafluoroethylene into the solution for about 5-10min, taking out, and soaking in acetone solution for 3-5min;
(3) Taking the workpiece out of the acetone solution, rinsing the workpiece with clear water, and naturally drying the workpiece in the shade;
(4) And (3) selecting organic silicon resin as an adhesive, uniformly coating the organic silicon resin on the treated surface to be bonded, immediately bonding, and baking at 80 ℃ for 2h to finish bonding.
Drawings
Fig. 1 is a schematic structural view of a protective cover according to an embodiment of the present invention;
the reference signs are:
1-heat-conducting silicone rubber layer 2-tetrafluoroethylene mesh fabric
3-ceramic flame-retardant silicone rubber layer 4-aramid felt layer.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1, the preferred embodiment of the composite heat-proof sleeve for battery protection of the present invention is: a composite heat-proof sleeve for protecting a battery is divided into four layers from inside to outside, wherein the first layer is a heat-conducting silicon rubber layer 1, the second layer is a tetrafluoroethylene mesh fabric 2, the third layer is a ceramic flame-retardant silicon rubber layer 3, and the fourth layer is an aramid felt layer 4; the thickness of the heat-conducting silicone rubber layer 1 is 0.5mm, the thickness of the tetrafluoroethylene mesh cloth 2 is 0.5mm, the thickness of the ceramic flame-retardant silicone rubber layer 3 is 1.5mm, and the thickness of the aramid felt layer 4 is 0.25mm.
The manufacturing method of the composite heat-proof and heat-insulating sleeve for protecting the battery comprises the following process steps:
(1) adopting heat-conducting silicon rubber to be solidified and molded in a mold at 180 ℃ through mold pressing;
(2) cutting the tetrafluoroethylene mesh cloth according to the outline size of the blank;
(3) treating the lap joint part by adopting a sodium naphthalene solution;
(1) Adding a certain amount of metal sodium into a tetrahydrofuran and naphthalene solution, wherein the mass fraction of the metal sodium is controlled to be 3-5%, and stirring at room temperature for about 2 hours until the solution is dark brown or black;
(2) Soaking the part to be treated with tetrafluoroethylene in the solution for about 5-10min, taking out, and soaking in acetone solution for 3-5min;
(3) Taking the workpiece out of the acetone solution, rinsing the workpiece with clear water, and naturally drying the workpiece in the shade;
(4) And (3) selecting organic silicon resin as an adhesive, uniformly coating the organic silicon resin on the treated surface to be bonded, immediately bonding, and baking at 80 ℃ for 2h to finish bonding.
(4) Sleeving the treated tetrafluoroethylene mesh cloth on the blank;
(5) adopting ceramic flame-retardant silicon rubber to be pressed and molded;
(6) and (3) adhering an aramid felt to the outer surface of the ceramic flame-retardant silicon rubber.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (3)
1. The battery protection is with compound heat insulating sleeve of preventing, its characterized in that: the composite heat-proof sleeve is divided into four layers from inside to outside, wherein the first layer is a heat-conducting silicone rubber layer which is formed by die pressing in a die at 180 ℃ through curing, the second layer is tetrafluoroethylene mesh cloth, the third layer is a ceramic flame-retardant silicone rubber layer, and the fourth layer is an aramid felt layer.
2. The composite heat-proof sleeve for battery protection according to claim 1, characterized in that: the thickness of the heat-conducting silicone rubber layer is 0.4-0.6mm, the thickness of the tetrafluoroethylene mesh fabric is 0.4-0.6mm, the thickness of the ceramic flame-retardant silicone rubber layer is 1.4-1.6mm, and the thickness of the aramid felt layer is 0.2-0.3mm.
3. The composite heat-proof sleeve for battery protection according to claim 2, characterized in that: the thickness of the heat-conducting silicone rubber layer is 0.5mm, the thickness of the tetrafluoroethylene mesh fabric is 0.5mm, the thickness of the ceramic flame-retardant silicone rubber layer is 1.5mm, and the thickness of the aramid fiber felt layer is 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660123.4U CN218123533U (en) | 2022-06-30 | 2022-06-30 | Composite heat-proof sleeve for battery protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221660123.4U CN218123533U (en) | 2022-06-30 | 2022-06-30 | Composite heat-proof sleeve for battery protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218123533U true CN218123533U (en) | 2022-12-23 |
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ID=84516443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221660123.4U Active CN218123533U (en) | 2022-06-30 | 2022-06-30 | Composite heat-proof sleeve for battery protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218123533U (en) |
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2022
- 2022-06-30 CN CN202221660123.4U patent/CN218123533U/en active Active
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