CN217047831U - Buffering flame retardant material structure and battery pack - Google Patents
Buffering flame retardant material structure and battery pack Download PDFInfo
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- CN217047831U CN217047831U CN202220236845.0U CN202220236845U CN217047831U CN 217047831 U CN217047831 U CN 217047831U CN 202220236845 U CN202220236845 U CN 202220236845U CN 217047831 U CN217047831 U CN 217047831U
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Abstract
The utility model relates to a battery technology field particularly, relates to a buffering flame retardant material structure and group battery. A buffering flame-retardant material structure comprises a buffering material layer and flame-retardant material layers arranged on the surfaces of two sides of the buffering material layer; the buffer material layer is selected from one of a PU foam layer, a polypropylene plastic foaming material layer, a polyethylene foaming material layer and a polyurethane foaming material layer, or a laminated body of at least two of the materials; the flame-retardant material layer is selected from one of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, a foaming ceramic layer, a rock wool board layer, a flame-retardant nylon layer, a mica layer, an aluminum silicate fiber paper layer and a high silica cloth layer, or a laminated body of at least two of the layers. The flame-retardant buffer material structure can meet the requirement of initial pretightening force during battery assembly, can effectively relieve the expansive force generated during battery charging and discharging, and can also prevent the thermal spreading and diffusion of the battery.
Description
Technical Field
The utility model relates to a battery technology field particularly, relates to a buffering flame retardant material structure and group battery.
Background
Currently, the safety problem of new energy vehicles is the focus of attention in the industry. In addition, in the later cycle period of the battery, the side reaction of the electrolyte is increased, the gas generation of the battery is caused, and the expansion of the battery is further intensified. If the expansion of the battery is not released to a certain degree, the expansion force in the battery is too large, so that the pole pieces are pressed with each other to precipitate lithium, and the capacity fading of the battery is accelerated. Therefore, the stress generated by the battery in the charging and discharging process is usually released by adding a buffer material between the battery and the battery in the module; on the other hand, when a certain unit battery in a module or a battery pack is invalid, the buffer material can prevent the adjacent batteries from being invalid due to rapid temperature rise caused by rapid heat transfer through the heat insulation performance of heat resistance or thermal expansion of the buffer material, and the heat spread of the batteries is delayed or prevented.
The conventional buffer materials comprise a ceramic pad, MPP (modified polypropylene), a square frame, an aerogel felt and the like, but the buffer materials have poor heat dissipation performance and low elastic modulus. When the battery is out of control thermally, the buffer material is damaged and burnt rapidly, and the thermal spread of the battery cannot be delayed; therefore, a buffer material with high compression capacity, heat resistance and heat insulation performance is searched, and the buffer material has important significance for prolonging the service life and heat spread of the battery.
In view of this, the utility model discloses it is special.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a buffering flame retardant material structure to the buffer material heat dispersion who solves among the prior art is poor, and elastic modulus is low, and when the battery takes place the thermal runaway, the buffer material is damaged rapidly and burns out, can not delay the technical problem that the heat of battery stretchs. The buffering flame-retardant material structure has the characteristics of high compression amount, heat resistance and heat insulation, and has important significance for prolonging the service life and thermal spread of the battery.
An object of the utility model is to provide a group battery.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
a buffering flame-retardant material structure comprises a buffering material layer and flame-retardant material layers arranged on the surfaces of two sides of the buffering material layer;
the buffer material layer is selected from one of a PU foam layer, a polypropylene plastic foaming material layer, a polyethylene foam material layer and a polyurethane foam layer, or a laminated body of at least two of the PU foam layer, the polypropylene plastic foaming material layer, the polyethylene foam material layer and the polyurethane foam material layer;
the flame-retardant material layer is selected from one of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, a foamed ceramic layer, a rock wool board layer, a flame-retardant nylon layer, a mica layer, an aluminum silicate fiber paper layer and a high silica cloth layer, or a laminated body of at least two of the layers.
In one embodiment, the thickness of the buffer material layer is 1.0-3.6 mm;
the thickness of the flame retardant material layer is 0.2-1.2 mm.
In one embodiment, an adhesive layer is disposed between the layer of flame retardant material and the layer of cushioning material;
the material of the adhesive layer is selected from ceramic adhesive, modified epoxy adhesive or organic silicon resin adhesive;
the thickness of the adhesive layer stack is 0.02-2 mm.
In one embodiment, the cushioning material layer is selected from a laminate of a PU foam layer and a polypropylene plastic foam layer.
In one embodiment, the cushioning material layer is selected from a laminate of a polyethylene foam layer and a polyurethane foam layer.
In one embodiment, the cushioning material layer is selected from a laminate of a PU foam layer, a polypropylene plastic foam layer, and a polyethylene foam layer.
In one embodiment, the cushioning material layer is selected from a laminate of a PU foam layer, a polypropylene plastic foam layer, a polyethylene foam layer, and a polyurethane foam layer.
In one embodiment, the layer of flame retardant material is selected from the group consisting of a laminate of a basalt fiber layer and a glass fiber layer, a laminate of a flame retardant nylon layer and a mica layer, or a laminate of a foamed ceramic layer and a high silica cloth layer.
In one embodiment, the layer of flame retardant material is selected from the group consisting of a laminate of a ceramic fiber layer, a foamed ceramic layer and a rock wool layer or a laminate of a flame retardant nylon layer, a mica layer and an aluminosilicate fiber paper layer.
In one embodiment, the layer of flame retardant material is selected from the group consisting of a laminate of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, and a foamed ceramic layer.
In one embodiment, the layer of flame retardant material is selected from the group consisting of a laminate of a rock wool ply, a flame retardant nylon layer, a mica layer, a fiber aluminum silicate paper ply, and a high silica cloth ply.
In one embodiment, the exterior of the structure of the cushioning and fire-retardant material is provided with a sealed housing.
The thickness of the sealing shell is 0.02-0.1 mm.
In one embodiment, the sealing edge width of the sealing shell is 0.4-4.0 mm.
The sealing shell is made of ceramic films, polyimide films, polypropylene films or polyethylene films;
in one embodiment, two side surfaces of the buffering flame-retardant material structure are respectively provided with a double-sided adhesive layer;
the thickness of the double-sided adhesive layer is 0.02-0.2 mm.
A battery pack comprises the buffering flame-retardant material structure.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the flame-retardant buffer material structure has a sandwich structure, can meet the requirement of initial pretightening force during battery assembly, can effectively relieve the expansive force generated during battery charging and discharging, and can also prevent the thermal spreading and diffusion of the battery.
(2) The battery pack has excellent safety performance and cycle performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a buffering flame-retardant material of the present invention;
fig. 2 is a schematic view of the structure of the buffering flame-retardant material in embodiments 1 to 4 of the present invention;
fig. 3 is a schematic view of the structure of the buffering flame-retardant material in embodiment 5 of the invention;
fig. 4 is a schematic view of the structure of the buffering flame-retardant material in embodiment 6 of the invention;
fig. 5 is a schematic view of a structure of a buffering flame-retardant material in embodiment 7 of the present invention.
Reference numerals are as follows:
1-buffer material layer, 101-first buffer layer, 102-second buffer layer, 2-flame retardant material layer, 201-first flame retardant layer, 202-second flame retardant layer, 203-third flame retardant layer, 3-adhesive layer, 4-sealed shell.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
According to one aspect, a cushioning flame retardant material structure includes a cushioning material layer and flame retardant material layers disposed on both side surfaces of the cushioning material layer;
the buffer material layer is selected from one of a PU foam layer, a polypropylene plastic foaming material layer, a polyethylene foam material layer and a polyurethane foam layer, or a laminated body of at least two of the PU foam layer, the polypropylene plastic foaming material layer, the polyethylene foam material layer and the polyurethane foam material layer;
the flame-retardant material layer is selected from one of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, a foaming ceramic layer, a rock wool board layer, a flame-retardant nylon layer, a mica layer, an aluminum silicate fiber paper layer and a high silica cloth layer, or a laminated body of at least two of the layers.
The flame-retardant buffer material structure has a sandwich structure, can meet the requirement of initial pretightening force during battery assembly, can effectively relieve the expansion force generated during battery charging and discharging, and can also prevent the thermal spreading and diffusion of the battery.
The PU foam layer, the polypropylene plastic foaming material layer, the polyethylene foam material layer and the polyurethane foam plastic layer are all materials in the prior art.
In one embodiment, the cushioning material layer may be selected from one of a PU foam layer, a polypropylene plastic foam layer, a polyethylene foam layer, and a polyurethane foam layer, or a combination of at least two thereof. For example, the following may be: a laminated body of a PU foam layer and a polypropylene plastic foaming material layer, and a laminated body of a polyethylene foam material layer and a polyurethane foam material layer; a laminated body of a PU foam layer, a polypropylene plastic foaming material layer and a polyethylene foaming material layer; a PU foam layer, a polypropylene plastic foam material layer, a laminated body of a polyethylene foam material layer and a polyurethane foam material layer, and the like.
By arranging the buffer material layers with different laminated structures, the buffer materials with different compression amounts and heat-resistant and heat-insulating properties can be coordinately obtained so as to meet the requirements of different battery assemblies.
The basalt fiber layer, the glass fiber layer, the ceramic fiber layer, the foaming ceramic layer, the rock wool board layer, the flame-retardant nylon layer, the mica layer, the aluminum silicate fiber paper layer and the high silica cloth layer are all materials in the prior art.
In one embodiment, the flame retardant material layer may be one of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, a foamed ceramic layer, a rock wool board layer, a flame retardant nylon layer, a mica layer, an alumina silicate fiber paper layer, and a high silica cloth layer, or a laminated combination of at least two of them. For example: the flame-retardant material layer is selected from a laminated body of a basalt fiber layer and a glass fiber layer, a laminated body of a flame-retardant nylon layer and a mica layer, a laminated body of a foaming ceramic layer and a high silica cloth layer, a ceramic fiber layer, a laminated body of a foaming ceramic layer and a rock wool board layer, a laminated body of a flame-retardant nylon layer, a laminated body of a mica layer and an aluminum silicate fiber paper layer, a basalt fiber layer, a glass fiber layer, a laminated body of a ceramic fiber layer and a foaming ceramic layer, a rock wool board layer, a flame-retardant nylon layer, a mica layer, a laminated body of an aluminum silicate fiber paper layer and a high silica cloth layer and the like.
Through setting up different flame retardant material layer structures, can obtain different flame retardant efficiency to satisfy although battery flame retardant efficiency's demand.
The mica layer comprises mica film, mica paper, mica tape or mica cloth.
In one embodiment, the thickness of the buffer material layer is 1.0-3.6 mm. In one embodiment, the thickness of the layer of cushioning material includes, but is not limited to, 1.2mm, 1.5mm, 1.7mm, 1.9mm, 2mm, 2.2mm, 2.5mm, 2.8mm, 3mm, or 3.5 mm.
In one embodiment, the thickness of the flame retardant material layer is 0.2-1.2 mm. In one embodiment, the thickness of the layer of flame retardant material includes, but is not limited to, 0.3mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.1mm, or 1.2 mm.
In one embodiment, an adhesive layer is disposed between the layer of flame retardant material and the layer of cushioning material.
In one embodiment, the material of the adhesive layer is selected from ceramic glue, modified epoxy glue or organic silicon resin glue.
In one embodiment, the adhesive layer has a thickness of 0.02 to 0.2 mm. It is also possible to select 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.12mm, 0.14mm, 0.15mm, 0.17mm, 0.19mm or 0.2 mm.
In one embodiment, the exterior of the structure of the buffering flame-retardant material is provided with a sealing shell.
In one embodiment, the thickness of the sealing shell is 0.02-0.1 mm. In one embodiment, the thickness of the sealed housing includes, but is not limited to, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, or 0.09 mm.
In one embodiment, the sealing edge width of the sealing shell is 0.4-4.0 mm. The seal edge width of the seal shell includes but is not limited to 0.5mm, 0.8mm, 1mm, 1.2mm, 1.4mm, 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 3mm, 3.5mm or 3.9 mm.
In one embodiment, the material of the sealing shell includes a ceramic film, a polyimide film, a polypropylene film or a polyethylene film.
In one embodiment, the maximum compression of the structure of the cushioning flame retardant material is between 30% and 70%. In one embodiment, the maximum compression of the structure of the cushioning flame retardant material includes, but is not limited to, 35%, 40%, 50%, 55%, 60%, 65%, or 69%.
In one embodiment, two side surfaces of the buffering flame-retardant material structure are respectively provided with a double-sided adhesive layer.
In one embodiment, the thickness of the double-sided adhesive layer is 0.02-0.2 mm. In one embodiment, the thickness of the double-sided adhesive layer includes, but is not limited to, 0.05mm, 0.07mm, 0.1mm, 0.15mm, 0.18mm, or 0.19 mm. And carrying out double-sided gum treatment on the buffering flame-retardant material structure to obtain the double-sided gum composite flame-retardant material. The gum can make things convenient for it to laminate with the battery surface.
In another aspect, a battery pack comprises the buffering flame-retardant material structure.
The following will be further described with reference to specific examples and comparative examples.
Fig. 1 is a schematic view of the structure of the buffering flame-retardant material of the present invention. Fig. 2 is a schematic view of the structure of the buffering flame retardant material in embodiments 1 to 4 of the present invention; fig. 3 is a schematic view of the structure of the buffering flame retardant material in embodiment 5 of the present invention; fig. 4 is a schematic view of the structure of the buffering flame-retardant material in embodiment 6 of the invention; fig. 5 is a schematic view of a structure of a buffering flame-retardant material in embodiment 7 of the present invention.
Example 1
A buffering flame-retardant material structure comprises a buffering material layer 1 and flame-retardant material layers 2 arranged on the surfaces of two sides of the buffering material layer 1;
the buffer material layer 1 is selected from a PU foam layer, and the thickness of the buffer material layer 1 is 1.5 mm;
the flame retardant material layer 2 is selected from a mica layer, and the thickness of the flame retardant material layer 2 is 0.5 mm;
an adhesive layer 3 is arranged between the flame-retardant material layer 2 and the buffer material layer 1;
the material of the adhesive layer 3 is selected from ceramic glue, and the thickness of the adhesive layer 3 stack is 0.1 mm.
Example 2
A buffering flame-retardant material structure is characterized in that except that a buffering material layer 1 is selected from a polyethylene foam material layer, and a flame-retardant material layer 2 is selected from aluminum silicate fiber paper; the other conditions were the same as in example 1.
Example 3
A buffer flame-retardant material structure is characterized in that except that a buffer material layer 1 is selected from a polypropylene foam material layer, and a flame-retardant material layer 2 is selected from a high silica cloth layer; the other conditions were the same as in example 1.
Example 4
A buffering flame-retardant material structure is characterized in that except a buffering material layer 1 selected from a polyurethane foam layer, a flame-retardant material layer 2 selected from a basalt fiber layer; the other conditions were the same as in example 1.
Example 5
A buffering flame-retardant material structure is characterized in that a first flame-retardant layer 201 and a second flame-retardant layer 202 are respectively arranged on two sides of a buffering material layer 1 in sequence; the first flame-retardant layer 201 and the second flame-retardant layer 202 are respectively a foamed ceramic layer and a high silica cloth layer; the thicknesses of the foaming ceramic layer and the high silica cloth layer are 0.2mm and 0.3mm respectively;
the other conditions were the same as in example 1.
Example 6
A buffer flame-retardant material structure is provided, except two sides of a buffer material layer 1, a first flame-retardant layer 201, a second flame-retardant layer 202 and a third flame-retardant layer 203 are respectively arranged in sequence,
the first flame-retardant layer 201, the second flame-retardant layer 202 and the third flame-retardant layer 203 correspond to the flame-retardant nylon layer, the mica layer and the aluminum silicate fiber paper layer respectively; the thicknesses of the first flame-retardant layer 201, the second flame-retardant layer 202 and the third flame-retardant layer 203 are 0.2mm, 0.1mm and 0.2mm, respectively;
the other conditions were the same as in example 1.
Example 7
A buffering flame-retardant material structure comprises a buffering material layer 1 and flame-retardant material layers 2 arranged on the surfaces of two sides of the buffering material layer 1;
the cushioning material layer 1 is selected from a polyethylene foam material layer, and the thickness of the cushioning material layer 1 is 1.2 mm;
the flame-retardant material layer 2 is selected from a basalt fiber layer, and the thickness of the flame-retardant material layer 2 is 0.4 mm;
a sealing shell 4 is arranged outside the buffering flame-retardant material structure;
the thickness of the seal housing 4 is 0.08 mm.
The edge sealing width of the sealing shell 4 is 3 mm;
the material of the sealed shell 4 is polyimide film.
The edge sealing width of the sealing shell 4 is 3.5 mm;
the material of the sealed shell 4 is polyimide film.
Example 8
A buffering flame-retardant material structure comprises a buffering material layer 1 and flame-retardant material layers 2 arranged on the surfaces of two sides of the buffering material layer 1;
the buffer material layer 1 comprises a first buffer layer 101 and a second buffer layer 102 which are sequentially laminated, wherein the first buffer layer 101 and the second buffer layer 102 are respectively a polyethylene foam material layer and a polyurethane foam layer; the thickness of the buffer material layer 1 is 2.4 mm;
the flame retardant material layer 2 is selected from mica layers in sequence, and the thickness of each mica layer is 0.5 mm.
Comparative example 1
One prior art aerogel.
Comparative example 2
One prior art MPP material (modified polypropylene material).
Test examples
First, the materials in examples 1 to 4 and comparative examples 1 to 2 were applied to a single square aluminum-shell battery, and a cycle comparison graph was obtained at 25 ℃, wherein 1C is 116Ah, which simulates the cycle of the battery in a module. The cycle performance is shown in table 1.
TABLE 1 results of the cycle Performance test
As can be seen from the table 1, the composite buffering flame-retardant material structure can generate elastic deformation along with the expansion of the battery within a certain pressure range, accommodate the deformation generated by the expansion of the battery, prevent the lithium precipitation caused by the expansion extrusion inside the battery, and ensure that the trend of the battery in the later cycle period is still good. And can also effectively reduce the extrusion of single battery inflation in the cyclic process to module and battery package, improve the reliability in service of module.
Two batteries of different groups are connected in parallel and then subjected to thermal spreading test result comparison
The test method comprises the following steps: and (3) superposing the two batteries, wherein a composite buffering flame-retardant material with the thickness of 1.2mm is used between the batteries to simulate the state of the batteries in the module. One of the batteries is triggered by a 500W heating plate, and the change of the two batteries is observed. The test results are shown in table 2.
TABLE 2 thermal spread test results
As can be seen from the data in Table 2, after the composite buffering flame-retardant material structure is used, the thermal runaway time of the second battery is obviously prolonged, and the composite buffering flame-retardant material structure has a good flame-retardant effect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (10)
1. A buffering flame-retardant material structure is characterized by comprising a buffering material layer and flame-retardant material layers arranged on the surfaces of two sides of the buffering material layer;
the buffer material layer is selected from one of a PU foam layer, a polypropylene plastic foaming material layer, a polyethylene foam material layer and a polyurethane foam layer, or a laminated body of at least two of the PU foam layer, the polypropylene plastic foaming material layer, the polyethylene foam material layer and the polyurethane foam material layer;
the flame-retardant material layer is selected from one of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer, a foaming ceramic layer, a rock wool board layer, a flame-retardant nylon layer, a mica layer, an aluminum silicate fiber paper layer and a high silica cloth layer, or a laminated body of at least two of the layers.
2. The structure of claim 1, wherein the thickness of the buffer material layer is 1.0-3.6 mm;
the thickness of the flame retardant material layer is 0.2-1.2 mm.
3. The structure of claim 1, wherein an adhesive layer is disposed between the layer of fire retardant material and the layer of cushioning material;
the material of the adhesive layer is selected from ceramic adhesive, modified epoxy adhesive or organic silicon resin adhesive;
the thickness of the adhesive layer is 0.02-2 mm.
4. The structure of claim 1, wherein the buffer material layer is selected from one of the characteristics (1) to (4):
(1) a laminated body of a PU foam layer and a polypropylene plastic foaming material layer;
(2) a laminate of a polyethylene foam layer and a polyurethane foam layer;
(3) a laminated body of a PU foam layer, a polypropylene plastic foaming material layer and a polyethylene foaming material layer;
(4) a laminated body of a PU foam layer, a polypropylene plastic foaming material layer, a polyethylene foam material layer and a polyurethane foam material layer.
5. The cushioning flame-retardant material structure of claim 1, wherein the flame-retardant material layer is selected from one of the features (1) to (4):
(1) a laminate of a basalt fiber layer and a glass fiber layer, a laminate of a flame-retardant nylon layer and a mica layer, or a laminate of a foamed ceramic layer and a high silica cloth layer;
(2) a laminated body of a ceramic fiber layer, a foaming ceramic layer and a rock wool board layer or a laminated body of a flame-retardant nylon layer, a mica layer and an aluminum silicate fiber paper layer;
(3) a laminate of a basalt fiber layer, a glass fiber layer, a ceramic fiber layer and a foamed ceramic layer;
(4) a rock wool board layer, a flame-retardant nylon layer, a mica layer, an aluminum silicate fiber paper layer and a high silica cloth layer.
6. The structure of any one of claims 1 to 5, wherein a sealed shell is arranged outside the structure of the buffering flame-retardant material;
the thickness of the sealing shell is 0.02-0.1 mm.
7. The structure of claim 6, wherein the sealing edge width of the sealing shell is 0.4-4.0 mm.
8. The structure of claim 6, wherein the material of the sealing shell comprises a ceramic film, a polyimide film, a polypropylene film or a polyethylene film.
9. The structure of claim 1, wherein two side surfaces of the structure are respectively provided with a double-sided adhesive layer;
the thickness of the double-sided adhesive layer is 0.02-0.2 mm.
10. A battery pack comprising the buffering flame-retardant material structure according to any one of claims 1 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116751530A (en) * | 2023-08-16 | 2023-09-15 | 北京倚天凌云科技股份有限公司 | Extrusion-resistant fireproof mica tape for power battery and preparation method thereof |
| CN117565504A (en) * | 2023-11-14 | 2024-02-20 | 常州艾克特纺织科技有限公司 | Battery pack buffer fabric with flame retardant function |
-
2022
- 2022-01-27 CN CN202220236845.0U patent/CN217047831U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116751530A (en) * | 2023-08-16 | 2023-09-15 | 北京倚天凌云科技股份有限公司 | Extrusion-resistant fireproof mica tape for power battery and preparation method thereof |
| CN116751530B (en) * | 2023-08-16 | 2023-11-24 | 北京倚天凌云科技股份有限公司 | Extrusion-resistant fireproof mica tape for power battery and preparation method thereof |
| CN117565504A (en) * | 2023-11-14 | 2024-02-20 | 常州艾克特纺织科技有限公司 | Battery pack buffer fabric with flame retardant function |
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