CN220653553U - Lithium battery heating film with protective film - Google Patents
Lithium battery heating film with protective film Download PDFInfo
- Publication number
- CN220653553U CN220653553U CN202322236045.6U CN202322236045U CN220653553U CN 220653553 U CN220653553 U CN 220653553U CN 202322236045 U CN202322236045 U CN 202322236045U CN 220653553 U CN220653553 U CN 220653553U
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- China
- Prior art keywords
- layer
- heating film
- film
- heating
- lithium battery
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 31
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 230000001681 protective effect Effects 0.000 title claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 76
- 239000011241 protective layer Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 13
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229920006284 nylon film Polymers 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 239000011888 foil Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 abstract description 9
- 239000005030 aluminium foil Substances 0.000 abstract description 7
- 239000004593 Epoxy Substances 0.000 abstract description 5
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 150000002641 lithium Chemical class 0.000 abstract 1
- 239000010408 film Substances 0.000 description 54
- 238000000034 method Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000005779 cell damage Effects 0.000 description 2
- 208000037887 cell injury Diseases 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium battery heating film with a protective film, which comprises a heating film body, wherein the top and the bottom of the heating film body are respectively provided with a protective layer and a bottom layer, and the protective layer is respectively provided with a nano ceramic particle layer, an epoxy resin layer, a polytetrafluoroethylene coating, a nylon film layer, an aluminum foil layer and a glass fiber film layer from the upper end to the lower end in sequence. This lithium battery heating film with protection film, through the design of protective layer, nano ceramic particle layer in the protective layer is painted on the epoxy layer, makes the heating film body increase better wearability on fire-retardant basis, reduces the risk of flame burning, can reduce surface wear simultaneously, prolongs the life of heating film body, polytetrafluoroethylene coating in the protective layer, nylon film layer, aluminium foil layer and glass fiber film layer can make the heating film body possess excellent radiation resistance, puncture resistance, electromagnetic shielding effect and thermal-insulated nature respectively.
Description
Technical Field
The utility model relates to the technical field of lithium battery heating films, in particular to a lithium battery heating film with a protective film.
Background
The lithium battery is an electrochemical battery, and is composed of a positive electrode material, a negative electrode material and an electrolyte, wherein lithium ions move from the positive electrode to the negative electrode in the process of charging and discharging the lithium battery to generate current and heat, and if the electrochemical reaction rate of the lithium battery is slow in a low-temperature environment, the working temperature of the lithium battery needs to be improved to optimize the performance of the lithium battery, so that the working temperature of the lithium battery is improved by using a heating film of the lithium battery and by heating, the lithium battery can work in a wider temperature range, and the efficiency and the performance of the battery are improved.
The heating film of the existing lithium battery is poor in protection effect, is easy to wear in the use process, so that the heating effect is affected, and is easy to damage due to puncture by a sharp object, so that potential safety hazards exist in application scenes needing to bear larger pressure and impact, meanwhile, the radiation protection and heat insulation effects are lacked, the battery is easy to be affected by radiation and heat loss when working in a high-temperature environment, and the performance and the service life of the battery are affected. Therefore, we propose a lithium battery heating film with a protective film.
Disclosure of Invention
The utility model aims to provide a lithium battery heating film with a protective film, which aims to solve the problems that the protective effect of the heating film of the existing lithium battery is poor, the heating film is easily worn in the use process, the heating effect is affected, and the heating film is easily damaged by puncture of a sharp object, so that potential safety hazards exist in application scenes needing to bear larger pressure and impact, and meanwhile, the heating film lacks of radiation protection and heat insulation effects, so that the battery works in a high-temperature environment and is easily affected by radiation and heat loss, and the performance and the service life of the battery are affected.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium cell heating film with protection film, includes the heating film body, the top and the bottom of heating film body are provided with protective layer and bottom layer respectively, the protective layer has set gradually nano ceramic particle layer, epoxy layer, polytetrafluoroethylene coating, nylon film layer, aluminium foil layer and glass fiber membrane layer respectively from the upper end to the lower extreme, the bottom layer has set gradually heat conduction silica gel piece layer and battery adhesive layer respectively from the upper end to the lower extreme.
Compared with the prior art, the utility model has the beneficial effects that:
this lithium cell heating film with protection film, through the design of protective layer, nano ceramic particle layer in the protective layer is applied with a brush on the epoxy layer, make the heating film body increased better wearability on fire-retardant basis, reduce the risk of flame burning, can reduce surface wear simultaneously, the life of heating film body is prolonged, polytetrafluoroethylene coating in the protective layer, nylon film layer, aluminium foil layer and glass fiber film layer can make the heating film body possess excellent radiation resistance respectively, puncture resistance, electromagnetic shielding effect and thermal-insulated nature, the radiation damage that reducible battery received, the protection battery performance, avoid sharp object puncture and lead to heating film body or lithium cell damage, reducible electromagnetic interference, improve the heating efficiency of heating film, can reduce the loss of heat to outside simultaneously, improve the heating efficiency of heating film body.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the heating film body of the present utility model;
FIG. 3 is a cross-sectional view of the structure of the protective layer of the present utility model;
fig. 4 is a cross-sectional view of the structure of the bottom layer of the present utility model.
In the figure: 1. heating the film body; 2. a protective layer; 3. a bottom layer; 4. a layer of nano-ceramic particles; 5. an epoxy resin layer; 6. a polytetrafluoroethylene coating; 7. nylon film layer; 8. an aluminum foil layer; 9. a glass fiber film layer; 10. a thermally conductive silicone sheet layer; 11. a battery adhesive layer; 12. a heating wire; 13. and (5) conducting wires.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but 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. 1-4, the present utility model provides a technical solution: the utility model provides a lithium cell heating film with protection film, includes heating film body 1, and heating film body 1's top and bottom are provided with protective layer 2 and bottom layer 3 respectively, and protective layer 2 has set gradually nano ceramic particle layer 4, epoxy layer 5, polytetrafluoroethylene coating 6, nylon film layer 7, aluminium foil layer 8 and glass fiber membrane layer 9 respectively from the upper end to the lower extreme, and bottom layer 3 has set gradually heat conduction silica gel piece layer 10 and battery adhesive layer 11 respectively from the upper end to the lower extreme.
The bottom of the glass fiber film layer 9 is adhered to the upper end face of the heating film body 1 through an adhesive, and the top of the glass fiber film layer 9 is fixedly adhered to the bottom of the aluminum foil layer 8 through the adhesive, so that the heating film body 1 has heat insulation performance and electromagnetic shielding effect.
The bottom of nylon thin film layer 7 is fixed with the top of aluminium foil layer 8 through the adhesive, and polytetrafluoroethylene coating 6 is applied to the top of aluminium foil layer 8, can avoid the pointed object puncture heating film body 1, and polytetrafluoroethylene coating 6 can prevent simultaneously that heating film body 1's surface from producing electric arc or electric spark.
The epoxy resin layer 5 is coated on the upper end of the polytetrafluoroethylene coating 6, and the nano ceramic particle layer 4 is coated on the top of the epoxy resin layer 5, so that the heating film body 1 has flame retardance and wear resistance.
The heat conduction silica gel sheet layer 10 is fixedly adhered to the lower end face of the heating film body 1 through an adhesive, the battery adhesive layer 11 is coated on the bottom of the heat conduction silica gel sheet layer 10, the heat conduction silica gel sheet layer 10 can achieve a good heat conduction effect, the heating efficiency of the heating film body 1 is improved, and the heating film body 1 is convenient to adhere to a lithium battery through the battery adhesive layer 11.
The inside fixed mounting of heating membrane body 1 has heater 12, and the one end electric connection of heater 12 has wire 13, and wire 13 runs through to the outside of heating membrane body 1, and heater 12 is an electric heating element for with electric energy conversion heat energy to produce heat in the membrane, through connecting wire 13, can give heater 12 with the electric energy that the power provided, make heater 12 produce heat, thereby make heating membrane body 1 realize the heating function.
To sum up: this lithium cell heating film with protection film, through the design of protective layer 2, nano ceramic particle layer 4 in the protective layer 2 is applied with a brush on epoxy layer 5, make heating film body 1 increased better wearability on fire-retardant basis, reduce the risk of flame burning, can reduce surface wear simultaneously, the life of heating film body 1 is prolonged, polytetrafluoroethylene coating in protective layer 2 6, nylon film layer 7, aluminium foil layer 8 and glass fiber film layer 9 can make heating film body 1 possess excellent radiation resistance respectively, puncture resistance, electromagnetic shielding effect and thermal insulation, the radiation damage that reducible battery received, the protection battery performance, avoid sharp object puncture and lead to heating film body 1 or lithium cell damage, reducible electromagnetic interference, improve heating film's heating efficiency, can reduce the heat to outside loss simultaneously, improve heating film body 1's heating efficiency.
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.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Lithium battery heating film with protection film, including heating film body (1), its characterized in that: the heating film is characterized in that a protective layer (2) and a bottom layer (3) are respectively arranged at the top and the bottom of the heating film body (1), a nano ceramic particle layer (4), an epoxy resin layer (5), a polytetrafluoroethylene coating (6), a nylon film layer (7), an aluminum foil layer (8) and a glass fiber film layer (9) are respectively arranged at the protective layer (2) from the upper end to the lower end in sequence, and a heat conduction silica gel sheet layer (10) and a battery adhesive layer (11) are respectively arranged at the bottom layer (3) from the upper end to the lower end in sequence.
2. A lithium battery heating film with a protective film according to claim 1, wherein: the bottom of the glass fiber film layer (9) is adhered to the upper end face of the heating film body (1) through an adhesive, and the top of the glass fiber film layer (9) is fixedly adhered to the bottom of the aluminum foil layer (8) through the adhesive.
3. A lithium battery heating film with a protective film according to claim 1, wherein: the bottom of the nylon film layer (7) is fixedly bonded with the top of the aluminum foil layer (8) through an adhesive, and the polytetrafluoroethylene coating (6) is coated on the top of the aluminum foil layer (8).
4. A lithium battery heating film with a protective film according to claim 1, wherein: the epoxy resin layer (5) is coated on the upper end of the polytetrafluoroethylene coating (6), and the nano ceramic particle layer (4) is coated on the top of the epoxy resin layer (5).
5. A lithium battery heating film with a protective film according to claim 1, wherein: the heat conduction silica gel sheet layer (10) is fixedly adhered to the lower end face of the heating film body (1) through an adhesive, and the battery adhesive layer (11) is coated on the bottom of the heat conduction silica gel sheet layer (10).
6. A lithium battery heating film with a protective film according to claim 1, wherein: the heating film is characterized in that a heating wire (12) is fixedly arranged in the heating film body (1), one end of the heating wire (12) is electrically connected with a conducting wire (13), and the conducting wire (13) penetrates through the outside of the heating film body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322236045.6U CN220653553U (en) | 2023-08-21 | 2023-08-21 | Lithium battery heating film with protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322236045.6U CN220653553U (en) | 2023-08-21 | 2023-08-21 | Lithium battery heating film with protective film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220653553U true CN220653553U (en) | 2024-03-22 |
Family
ID=90291397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322236045.6U Active CN220653553U (en) | 2023-08-21 | 2023-08-21 | Lithium battery heating film with protective film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220653553U (en) |
-
2023
- 2023-08-21 CN CN202322236045.6U patent/CN220653553U/en active Active
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