CN217373758U - Composite mica plate for thermal runaway management of new energy automobile - Google Patents
Composite mica plate for thermal runaway management of new energy automobile Download PDFInfo
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- CN217373758U CN217373758U CN202220661171.9U CN202220661171U CN217373758U CN 217373758 U CN217373758 U CN 217373758U CN 202220661171 U CN202220661171 U CN 202220661171U CN 217373758 U CN217373758 U CN 217373758U
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Abstract
The application relates to the technical field of mica materials for new energy automobiles, in particular to a composite mica plate for thermal runaway management of a new energy automobile. A composite mica plate for thermal runaway management of a new energy automobile comprises a mica plate main body, wherein inorganic silicon bonding layers are integrally formed on the upper surface and the lower surface of the mica plate main body; the inorganic silicon bonding layer is fixedly connected with a reinforced grid cloth. The application has higher bending strength, tensile strength and modulus, and mechanical properties is comparatively outstanding, and the application mode is comparatively diversified in the thermal runaway protection management of new energy automobile battery.
Description
Technical Field
The application relates to the technical field of mica materials for new energy automobiles, in particular to a composite mica plate for thermal runaway management of a new energy automobile.
Background
Under the current environmental protection policy and high oil price environment, the new energy automobile which is remarkable in energy conservation and environmental protection and low in driving cost occupies the rising proportion of the automobile market. In recent years, safety performance of new energy vehicles has received a great deal of attention. The main factor limiting the consumption of new energy vehicles by the public is the safety and stability of the new energy vehicle power supply.
The insulating and heat-insulating material plays a key protection role in the thermal runaway protection management of the new energy automobile battery, and the whole automobile driving safety of the new energy automobile and the use safety performance of the battery module are ensured. At present, mica materials are mainly used for insulation and heat insulation in the heat loss control management of new energy automobiles. The mica material has the advantages of high electrical insulation, large dielectric constant, small loss, high dielectric strength and high chemical stability. Therefore, the mica material becomes one of the key components in the thermal runaway management of the new energy automobile battery module. Mica materials are one of the popular researches in the field of new energy automobiles as excellent insulating materials.
The mica plate in the related technology is prepared by adopting gold mica paper and inorganic silica gel through hydrothermal pressing, and the content of the glue is 15-20%. With respect to the mica boards in the above-described related art, the applicant found that: the mica plate in the related technology has low mechanical strength and a single application mode in the thermal runaway protection management of the new energy automobile battery.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the mechanical strength of a mica plate in the related technology is low, the application provides a composite mica plate for thermal runaway management of a new energy automobile.
The application provides a compound mica plate for new energy automobile thermal runaway management, can realize through following technical scheme:
a composite mica plate for thermal runaway management of a new energy automobile comprises a mica plate main body, wherein inorganic silicon bonding layers are integrally formed on the upper surface and the lower surface of the mica plate main body; the inorganic silicon bonding layer is fixedly connected with a reinforced gridding cloth.
Through adopting above-mentioned technical scheme, reinforcing net cloth has been adopted in this application, has given this application compound mica plate wholly to have higher bending strength, tensile strength and modulus, and mechanical properties is comparatively outstanding, and the application mode is comparatively diversified in the thermal runaway protection management of new energy automobile battery.
Preferably, the reinforced gridding cloth is one of glass fiber gridding cloth and aramid fiber gridding cloth.
By adopting the technical scheme, the integral bending strength, tensile strength and modulus and mechanical property can be improved.
Preferably, the reinforced mesh fabric is a plain weave structure formed by warp and weft in a mixed manner; the warp of the reinforced gridding cloth comprises a first alkali-free glass fiber yarn and a first aramid yarn, and the first alkali-free glass fiber yarn and the first aramid yarn are arranged at intervals along the weft direction; the weft of the reinforced gridding cloth comprises second alkali-free glass fiber yarns and second aramid fiber yarns, and the second alkali-free glass fiber yarns and the second aramid fiber yarns are arranged at intervals along the warp direction.
By adopting the technical scheme, the integral bending strength, tensile strength and modulus can be improved, and the mechanical property is endowed with certain flexibility.
Preferably, the interval between the adjacent first alkali-free glass fiber yarns and the adjacent first aramid yarns is 1.0-2.5 mm; the interval between the adjacent second alkali-free glass fiber yarns and the adjacent second aramid fiber yarns is 1.0-2.5 mm; the titer of the first alkali-free glass fiber yarn and the titer of the second alkali-free glass fiber yarn are 15-30D; the titer of the first aramid yarn and the titer of the second aramid yarn are 3-10D.
By adopting the technical scheme, the integral bending strength, tensile strength and modulus can be improved, and the mechanical property is endowed with certain flexibility.
Preferably, the reinforced mesh fabric is a plain weave structure formed by warp and weft in a mixed manner; the warp of the reinforced gridding cloth comprises warp-wise composite yarns which are arranged at intervals, each warp-wise composite yarn comprises a first alkali-free glass fiber yarn and a first aramid yarn, and the first aramid yarn is spirally wound in the circumferential direction of the first alkali-free glass fiber yarn; the weft of the reinforced gridding cloth comprises weft composite yarns which are arranged at intervals, and a single weft composite yarn comprises a second alkali-free glass fiber yarn and a second aramid yarn; the second aramid yarn is spirally wound around the second alkali-free glass fiber yarn in the circumferential direction.
By adopting the technical scheme, the integral bending strength, tensile strength and modulus can be improved, and the mechanical property is endowed with certain flexibility.
Preferably, the mica plate main body comprises a phlogopite paper layer and a synthetic fluorophlogopite layer, and the synthetic fluorophlogopite layer is compounded between the adjacent phlogopite paper layers.
Through adopting above-mentioned technical scheme, synthetic fluorophlogopite layer has better withstand voltage breakdown performance, insulating nature and has certain toughness concurrently, consequently, has given the good insulating and heat-proof quality and the pliability of this application, can effectively guarantee the safety in utilization performance of new energy automobile battery module.
Preferably, the mica plate main body further comprises an aramid fiber toughening net layer, and the aramid fiber toughening net layer is compounded on the adjacent phlogopite paper layer and the synthetic fluorophlogopite layer.
Through adopting above-mentioned technical scheme, the aramid fiber toughening net layer can further improve the mechanical strength and the pliability performance of mica plate main part, consequently, has given good mechanical properties, insulating heat-proof quality and pliability of this application, can effectively guarantee the safety in utilization performance of new energy automobile battery module.
Preferably, the aramid fiber toughening net layer is a plain weave structure formed by warp and weft in a mixed manner; the warps and the wefts of the aramid fiber toughening net layer all comprise aramid fiber spun yarns; the outer wall of the aramid yarn is pre-impregnated to form an inorganic silicon adhesive outer layer.
By adopting the technical scheme, the connection stability of the aramid fiber toughening net, the phlogopite paper layer and the synthetic fluorophlogopite layer can be improved, and the service life of the whole product is further ensured.
In summary, the present application has the following advantages:
1. the application has higher bending strength, tensile strength and modulus, and mechanical properties is comparatively outstanding, and the application mode is comparatively diversified in the thermal runaway protection management of new energy automobile battery.
2. The application has better voltage breakdown resistance, and the insulating and heat-insulating performance is better, can effectively guarantee the use safety performance of the new energy automobile battery module.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 in the present application.
Fig. 2 is a schematic structural diagram of a motherboard cloud main body in embodiment 2 of the present application.
Fig. 3 is a schematic structural diagram of the reinforced mesh fabric in example 3 of the present application.
Fig. 4 is a schematic structural diagram of the reinforced mesh cloth in example 4 of the present application.
Fig. 5 is a schematic structural diagram of a motherboard cloud main body in embodiment 5 of the present application.
Fig. 6 is a schematic structural view of an aramid toughened mesh layer in example 5 of the present application.
In the figure, 1, a mica plate main body; 11. a phlogopite paper layer; 12. synthesizing a fluorophlogopite layer; 13. an aramid fiber toughening mesh layer; 130. polyester yarn; 131. aramid fiber spinning; 132. an inorganic silicon binder outer layer; 2. an inorganic silicon bonding layer; 3. reinforcing mesh cloth; 30. warp-wise composite yarns; 300. weft composite yarns; 31. a first alkali-free glass fiber yarn; 32. a first aramid yarn; 33. a second alkali-free glass fiber yarn; 34. and a second aramid yarn.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
Example 1: referring to fig. 1, the composite mica plate for the thermal runaway management of the new energy automobile disclosed by the application comprises a mica plate main body 1, wherein the mica plate main body 1 is prepared by hot-pressing phlogopite paper and KR-242A silicone resin. The inorganic silicon bonding layers 2 are integrally formed on the upper surface and the lower surface of the mica plate main body 1, and the inorganic silicon bonding layers 2 are KR-242A silicon resin. The inorganic silicon bonding layer 2 is fixedly connected with a reinforced gridding cloth 3. The reinforced gridding cloth 3 is one of glass fiber gridding cloth and aramid fiber gridding cloth. In this example, a commercially available fiberglass mesh cloth was used.
Example 2 differs from example 1 in that:
referring to fig. 2, the mica plate body 1 includes a phlogopite paper layer 11 and a synthetic fluorophlogopite layer 12, and the synthetic fluorophlogopite layer 12 is fixed between the adjacent phlogopite paper layers 11 through KR-242A silicone resin by hot pressing. The thickness of the mica plate main body 1 determines the total amount of the phlogopite paper layer 11 and the synthetic fluorophlogopite layer 12 according to actual requirements.
The preparation method of the mica plate main body 1 comprises the steps of coating KR-242A silicon resin on the upper surface and the lower surface of phlogopite paper, heating to 80 ℃ to enable the KR-242A silicon resin to be in a gel state, meanwhile, coating KR-242A silicon resin on the upper surface of synthetic fluorophlogopite, heating to 80 ℃ to enable the KR-242A silicon resin to be in a gel state, compounding the surface of the synthetic fluorophlogopite which is not coated with glue on the surface of the phlogopite paper with the KR-242A silicon resin, and carrying out hot-pressing curing molding to obtain the finished product mica plate main body 1.
Example 3 differs from example 1 in that:
referring to fig. 3, the reinforced mesh fabric 3 is a plain weave structure woven by warp and weft in a mixed manner. The warp of the reinforced mesh fabric 3 is composed of first alkali-free glass fiber yarns 31 and first aramid yarns 32 which are arranged at intervals along the weft direction. The weft of the reinforced gridding cloth 3 consists of second alkali-free glass fiber yarns 33 and second aramid yarns 34 which are arranged at intervals along the warp direction. The interval between the adjacent first alkali-free glass fiber yarns 31 and the adjacent first aramid yarns 32 is 2 mm; the interval between the adjacent second alkali-free glass fiber yarns 33 and the second aramid yarn 34 is 2.0 mm. The fineness of the first alkali-free glass fiber yarn 31 and the fineness of the second alkali-free glass fiber yarn 33 are 15D, and the fineness of the first aramid yarn 32 and the fineness of the second aramid yarn 34 are 3D.
Example 4 differs from example 1 in that:
referring to fig. 4, the reinforced mesh fabric 3 is a plain weave structure woven by warp and weft in a mixed manner. The warp of the reinforced mesh fabric 3 includes warp direction composite yarns 30 arranged at intervals, each warp direction composite yarn 30 includes a first alkali-free glass fiber yarn 31 and a first aramid yarn 32, and the first aramid yarn 32 is spirally wound around the circumference of the first alkali-free glass fiber yarn 31. The spacing between adjacent warp direction composite yarns 30 is 2.0 mm.
Referring to fig. 4, the weft of the reinforced mesh fabric 3 includes weft composite yarns 300 arranged at intervals, the single weft composite yarn 300 includes second alkali-free fiberglass yarns 33 and second aramid yarns 34, and the second aramid yarns 34 are spirally wound around the second alkali-free fiberglass yarns 33 in the circumferential direction. The spacing between adjacent weft composite yarns 300 is 2.0 mm.
Example 5 differs from example 1 in that:
referring to fig. 5, the mica plate body 1 includes a phlogopite paper layer 11, a synthetic fluorophlogopite layer 12 and an aramid fiber toughening mesh layer 13, and the aramid fiber toughening mesh layer 13 is fixed to the adjacent phlogopite paper layer 11 and synthetic fluorophlogopite layer 12 by means of KR-242A resin through hot pressing.
Referring to fig. 6, the aramid fiber toughened mesh layer 13 is a plain weave structure formed by co-weaving warp and weft. The warp and weft of the aramid fiber toughened mesh layer 13 are the same. Taking the warp of the aramid fiber toughening mesh layer 13 as an example, the warp of the aramid fiber toughening mesh layer 13 is composed of aramid spun yarns 131 and polyester yarns 130 which are arranged at intervals along the weft direction. The distance between the adjacent aramid spun yarns 131 and the polyester yarns 130 is 2.0 mm. The aramid spun yarn 131 is immersed in KR-242A resin, taken out, drained, and heated, and then an inorganic silicone adhesive outer layer 132 is formed on the outer wall of the aramid spun yarn 131.
The preparation method of the mica plate main body 1 comprises the steps of coating KR-242A silicon resin on the upper surface and the lower surface of phlogopite paper, heating to 80 ℃ to enable the KR-242A silicon resin to be in a gel state, meanwhile, coating KR-242A silicon resin on the upper surface of synthetic fluorophlogopite, heating to 80 ℃ to enable the KR-242A silicon resin to be in a gel state, covering the surface of the phlogopite paper with the KR-242A silicon resin with an aramid fiber toughening net layer 13, compounding the surface of the synthetic fluorophlogopite without the coating glue on the surface of the phlogopite paper covering the aramid fiber toughening net layer 13, and carrying out hot-pressing curing molding to obtain the finished mica plate main body 1.
The embodiments of the present invention are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a compound mica plate for new energy automobile thermal runaway management which characterized in that: the mica plate comprises a mica plate main body (1), wherein inorganic silicon bonding layers (2) are integrally formed on the upper surface and the lower surface of the mica plate main body (1); the inorganic silicon bonding layer (2) is fixedly connected with a reinforced gridding cloth (3).
2. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 1, wherein: the reinforced gridding cloth (3) is one of glass fiber gridding cloth and aramid fiber gridding cloth.
3. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 1, wherein: the reinforced mesh fabric (3) is a plain weave structure formed by warp and weft in a mixed manner; the warp of the reinforced mesh fabric (3) comprises first alkali-free glass fiber yarns (31) and first aramid yarns (32), and the first alkali-free glass fiber yarns (31) and the first aramid yarns (32) are arranged at intervals along the weft direction; the weft of the reinforced gridding cloth (3) comprises second alkali-free glass fiber yarns (33) and second aramid fiber yarns (34), and the second alkali-free glass fiber yarns (33) and the second aramid fiber yarns (34) are arranged at intervals along the warp direction.
4. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 3, wherein: the interval between the adjacent first alkali-free glass fiber yarns (31) and the adjacent first aramid yarns (32) is 1.0-2.5 mm; the interval between the adjacent second alkali-free glass fiber yarns (33) and the adjacent second aramid yarns (34) is 1.0-2.5 mm; the titer of the first alkali-free glass fiber yarn (31) and the titer of the second alkali-free glass fiber yarn (33) is 15-30D; the titer of the first aramid yarn (32) and the titer of the second aramid yarn (34) are 3-10D.
5. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 1, wherein: the reinforced mesh fabric (3) is a plain weave structure formed by warp and weft in a mixed manner; the warp of the reinforced mesh fabric (3) comprises warp composite yarns (30) which are arranged at intervals, a single warp composite yarn (30) comprises a first alkali-free glass fiber yarn (31) and a first aramid yarn (32), and the first aramid yarn (32) is spirally wound in the circumferential direction of the first alkali-free glass fiber yarn (31); the weft of the reinforced mesh fabric (3) comprises weft composite yarns (300) which are arranged at intervals, and a single weft composite yarn (300) comprises second alkali-free glass fiber yarns (33) and second aramid yarns (34); the second aramid yarn (34) is spirally wound around the second alkali-free glass fiber yarn (33) in the circumferential direction.
6. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 5, wherein: the mica plate main body (1) comprises a phlogopite paper layer (11) and a synthetic fluorophlogopite layer (12), wherein the synthetic fluorophlogopite layer (12) is compounded between the adjacent phlogopite paper layers (11).
7. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 6, wherein: the mica plate main body (1) further comprises an aramid fiber toughening net layer (13), and the aramid fiber toughening net layer (13) is compounded on the adjacent phlogopite paper layer (11) and the synthetic fluorophlogopite layer (12).
8. The composite mica plate for the thermal runaway management of the new energy automobile according to claim 7, wherein: the aramid fiber toughening net layer (13) is a plain weave structure formed by warp and weft in a mixed mode; the warps and the wefts of the aramid fiber toughening net layer (13) all comprise aramid fiber spun yarns (131); the outer wall of the aramid yarn (131) is pre-impregnated with an inorganic silicon adhesive outer layer (132).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220661171.9U CN217373758U (en) | 2022-03-24 | 2022-03-24 | Composite mica plate for thermal runaway management of new energy automobile |
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| CN202220661171.9U CN217373758U (en) | 2022-03-24 | 2022-03-24 | Composite mica plate for thermal runaway management of new energy automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115831443A (en) * | 2022-10-28 | 2023-03-21 | 固德电材系统（苏州）股份有限公司 | Mica glass fiber composite material and preparation method and application thereof |
| CN117621568A (en) * | 2023-11-28 | 2024-03-01 | 奥创特新(苏州)科技有限公司 | High-toughness thin-wall mica composite material and preparation process thereof |
-
2022
- 2022-03-24 CN CN202220661171.9U patent/CN217373758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115831443A (en) * | 2022-10-28 | 2023-03-21 | 固德电材系统（苏州）股份有限公司 | Mica glass fiber composite material and preparation method and application thereof |
| CN117621568A (en) * | 2023-11-28 | 2024-03-01 | 奥创特新(苏州)科技有限公司 | High-toughness thin-wall mica composite material and preparation process thereof |
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