CN210073885U - Battery backboard - Google Patents
Battery backboard Download PDFInfo
- Publication number
- CN210073885U CN210073885U CN201822163386.4U CN201822163386U CN210073885U CN 210073885 U CN210073885 U CN 210073885U CN 201822163386 U CN201822163386 U CN 201822163386U CN 210073885 U CN210073885 U CN 210073885U
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- layer
- battery
- heat
- retardant
- heat dissipation
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- 239000010410 layer Substances 0.000 claims abstract description 104
- 239000003063 flame retardant Substances 0.000 claims abstract description 43
- 230000017525 heat dissipation Effects 0.000 claims abstract description 41
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000012790 adhesive layer Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- -1 polyethylene Polymers 0.000 claims description 11
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000011231 conductive filler Substances 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 16
- 239000002131 composite material Substances 0.000 description 16
- 239000010408 film Substances 0.000 description 13
- 238000004026 adhesive bonding Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 239000011259 mixed solution Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000000178 monomer Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000010409 thin film Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model belongs to the technical field of solar energy, a battery backboard is provided. The battery back plate comprises a base material layer, wherein the base material layer is provided with a first surface and a second surface which are oppositely arranged; the battery back sheet also has a flame retardant layer; a first adhesive layer and the flame-retardant layer are sequentially prepared on the first surface of the base material layer; and a second adhesive layer, an insulating layer, a first heat dissipation layer and a second heat dissipation layer are sequentially prepared on the second surface of the base material layer. The beneficial effects of the utility model reside in that: the battery back plate can effectively dissipate heat, reduces the heat of the battery, has higher flame-retardant level and good water vapor oxygen blocking effect, can effectively improve the stability of the perovskite battery, prolongs the service life of the battery, and improves the use safety.
Description
Technical Field
The utility model belongs to the technical field of solar energy, concretely relates to battery backboard.
Background
With the wide application and popularization of the solar cell power generation technology with the advantages of environmental protection and energy conservation, the huge market demand of the back plate film for the solar cell is driven. The solar cell back plate is positioned on the back surface of the solar cell module, plays a role in protecting and supporting the cell and is one of the extremely important packaging materials for prolonging the service life of the cell.
The solar cell back plate is an extremely important packaging material in the photovoltaic module, plays a role in supporting and protecting a cell, is directly contacted with the external environment in a large area, bears an important mission for ensuring stable power generation of the photovoltaic module, and has the advantages of excellent aging resistance (damp heat, dry heat and ultraviolet), corrosion resistance, electric insulation resistance, water vapor barrier, size stability and the like.
Traditional solar cell backplate uses under high temperature for a long time, and it is great to generate heat, and heat conduction radiating effect is relatively poor, can cause the heat to be difficult to discharge, simultaneously because flame retardant efficiency is relatively poor, phenomena such as burning easily appear destroy solar cell basic function, and have great use safety hidden danger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery backboard to solve the technical problem who exists among the prior art.
The utility model discloses the technical means who adopts is: a battery backsheet, comprising: the substrate layer is provided with a first surface and a second surface which are oppositely arranged; the battery back sheet also has a flame retardant layer.
Preferably, the flame retardant layer is one of polyethylene and polyethylene terephthalate.
Preferably, the substrate layer is one of aluminum, copper and gold foil.
Preferably, a first adhesive layer and the flame-retardant layer are sequentially prepared on the first surface of the base material layer; and a second adhesive layer, an insulating layer, a first heat dissipation layer and a second heat dissipation layer are sequentially prepared on the second surface of the base material layer.
Preferably, the first adhesive layer and the second adhesive layer are flame-retardant heat-conducting adhesive layers, and the flame-retardant heat-conducting adhesive layers are one or more of acrylate, epoxy resin, polyurethane and polyester.
Preferably, the heat-conducting filler in the flame-retardant heat-conducting adhesive layer is one or more of BN, graphite powder and SiC.
Preferably, the insulating layer is one of polyamide and polyethylene terephthalate.
Preferably, the first heat dissipation layer is a water absorption heat dissipation layer.
Preferably, the second heat dissipation layer is a heat dissipation coating.
The utility model also provides a solar cell, including the foretell battery backplate of solar cell chip, the battery backplate is fixed in the back of solar cell chip.
Compared with the prior art, the utility model discloses the beneficial effect who produces is:
(1) the utility model discloses a battery backboard not only makes battery backboard have good radiating effect through setting up fire-retardant gluing layer and fire-retardant layer, still has higher fire-retardant rank, has improved the security of using.
(2) The utility model discloses a battery backplate is through setting up the heat dissipation layer and the heat dissipation coating that absorb water, can further improve battery backplate's heat dispersion, has reduced the battery heat, can effectively improve perovskite battery stability, extension battery life.
(3) The utility model discloses a battery backplate makes the battery backplate have good steam oxygen separation effect through setting up the substrate layer.
Drawings
Fig. 1 is a schematic view of a material composition structure of a battery back plate in embodiment 1 of the present invention.
Wherein: 1. fire-retardant layer, 2, first gluing layer, 3, the substrate layer, 4, second gluing layer, 5, insulating layer, 6, first heat dissipation layer, 7, second heat dissipation layer.
Detailed Description
The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Example 1
The battery back sheet in this example was prepared as follows
(1) Adding high-molecular resin particles into an organic solvent, uniformly stirring at a high speed of 2000 r/min, adding a heat-conducting filler, tackifying resin, a plasticizer, an anti-aging agent, a flame-retardant filler and the like into the mixed resin solution, uniformly stirring at a high speed, and defoaming to prepare a flame-retardant heat-conducting adhesive mixed solution;
(2) degreasing, cleaning and drying the upper and lower surfaces of the substrate layer 3 for later use, uniformly coating the flame-retardant heat-conducting adhesive mixed solution prepared in the step (1) on the upper and lower surfaces of the treated substrate layer 3, and drying by hot air at 100 ℃ to prepare a first adhesive layer 2 and a second adhesive layer 4;
(3) sequentially laminating the flame-retardant layer 1, the composite film prepared in the step (2) (wherein the first adhesive layer 2 is upward) and the insulating layer 5 from top to bottom, and preparing the composite film after rolling and compounding;
(4) uniformly stirring and mixing a polymerizable hydrophilic monomer and an anti-aging agent to prepare a heat absorption and dissipation layer mixed solution, coating the water absorption and dissipation mixed solution on the lower surface (namely the surface of the insulating layer 5) of the composite film prepared in the step (3) by adopting the composite film prepared in the step (3), and drying to obtain a first heat dissipation layer 6 and another composite film;
(5) and (4) uniformly spraying infrared thermal radiation coating on the lower surface (namely the surface of the first water absorption layer) of the composite film prepared in the step (4), drying to obtain a second heat dissipation layer 7, and finally preparing the battery backboard.
As shown in fig. 1, the battery back plate prepared in this embodiment sequentially includes, from top to bottom, a flame retardant layer 1, a first adhesive layer 2, a substrate layer 3, a second adhesive layer 4, an insulating layer 5, a first heat dissipation layer 6, and a second heat dissipation layer 7.
Wherein, insulating layer 1 is one of PE (polyethylene), PET (polyethylene terephthalate), and thickness is 50-250um, and preferably PE, thickness 250um has improved the fire-retardant level of compound backplate and the security of using. Substrate layer 3, high heat conduction metal substrate layer 3 are one of aluminium, copper, gold foil, and thickness is 9-50um, and preferred aluminium, thickness is 50um, makes composite back plate have good steam oxygen separation effect. The insulating layer 5 is one of PA (polyamide) and PET (polyethylene terephthalate), the thickness is 50-250um, preferably PA, the thickness is 250 um; the first water absorption layer 6 is a water absorption and heat dissipation layer, the thickness of the first water absorption layer is 50-100um, preferably 100um, and the first water absorption layer is prepared by a water absorption and heat dissipation solution containing polymerizable hydrophilic monomers, wherein the content of the polymerizable hydrophilic monomers accounts for 50% -98%; the second heat dissipation layer 7 is a heat dissipation coating, the thickness of the second heat dissipation layer is 5-30um, and preferably 30 um; the first heat dissipation layer 6 and the second heat dissipation layer 7 further improve the heat dissipation performance of the composite backboard, reduce the heat of the battery, effectively improve the stability of the perovskite battery and prolong the service life of the battery. First sticky layer 2, second sticky layer 4 are fire-retardant heat conduction sticky layer, and fire-retardant heat conduction sticky layer is one or several kinds in acrylic ester, epoxy, polyurethane, the polyester, and thickness is 5-30um, and be acrylic ester preferentially, thickness 30um, and the heat conduction filler in the fire-retardant heat conduction sticky layer is one or several kinds in BN, graphite powder, the SiC, and preferably BN, makes the battery backplate not only have good radiating effect, still has higher fire-retardant rank, has improved the security of using.
It is worth mentioning that the battery backboard prepared by the preparation method in the embodiment not only enables the solar battery backboard to effectively dissipate heat through the arrangement of the flame-retardant heat-conducting adhesive layer and the flame-retardant layer, but also reduces the heat of the battery, and simultaneously enables the solar battery backboard to have higher flame-retardant level and good water vapor oxygen blocking effect, thereby effectively improving the stability of the perovskite battery, prolonging the service life of the battery and improving the use safety.
Example 2
The battery back sheet in this example was prepared as follows
(1) Adding high-molecular resin particles into an organic solvent, uniformly stirring at a high speed of 2000 r/min, adding a heat-conducting filler, tackifying resin, a plasticizer, an anti-aging agent, a flame-retardant filler and the like into the mixed resin solution, uniformly stirring at a high speed, and defoaming to prepare a flame-retardant heat-conducting adhesive mixed solution;
(2) degreasing, cleaning and drying the upper and lower surfaces of the substrate layer 3 for later use, uniformly coating the flame-retardant heat-conducting adhesive mixed solution prepared in the step (1) on the upper and lower surfaces of the treated substrate layer 3, and drying by hot air at 50 ℃ to prepare a first adhesive layer 2 and a second adhesive layer 4;
(3) sequentially laminating the flame-retardant layer 1, the composite film prepared in the step (2) (wherein the first adhesive layer 2 is upward) and the insulating layer 5 from top to bottom, and preparing the composite film after rolling and compounding;
(4) uniformly stirring and mixing a polymerizable hydrophilic monomer and an anti-aging agent to prepare a heat absorption and dissipation layer mixed solution, coating the water absorption and dissipation mixed solution on the lower surface (namely the surface of the insulating layer 5) of the composite film prepared in the step (3) by adopting the composite film prepared in the step (3), and drying to obtain a first heat dissipation layer 6 and another composite film;
(5) and (4) uniformly spraying infrared thermal radiation coating on the lower surface (namely the surface of the first water absorption layer) of the composite film prepared in the step (4), drying to obtain a second heat dissipation layer 7, and finally preparing the battery backboard.
Wherein, fire-retardant layer 1 is PET, and thickness 50um has improved the fire-retardant level and the security of using of compound backplate. Substrate layer 3 is the copper, and thickness is 9um, makes composite back plate have good steam oxygen separation effect. The insulating layer 5 is PET with the thickness of 50 um; the first heat dissipation layer 6 is a water absorption heat dissipation layer, the thickness of the water absorption heat dissipation layer 6 is 50 micrometers, and the water absorption heat dissipation layer is prepared from a water absorption heat dissipation solution containing polymerizable hydrophilic monomers, wherein the content of the polymerizable hydrophilic monomers accounts for 50% -98%; the second heat dissipation layer is a heat dissipation coating, and the thickness of the heat dissipation coating is 5 um; the first heat dissipation layer 6 and the second heat dissipation layer 7 further improve the heat dissipation performance of the composite backboard, reduce the heat of the battery, effectively improve the stability of the perovskite battery and prolong the service life of the battery. First gluing layer 2, second gluing layer 4 are fire-retardant heat conduction gluing layer, and fire-retardant heat conduction gluing layer is epoxy, and thickness 5um, the heat conduction filler in the fire-retardant heat conduction gluing layer are graphite powder, make the battery backplate not only have good radiating effect, still have higher fire-retardant level, have improved the security of using.
Example 3
A solar cell using the cell back sheets prepared in examples 1 and 2, the cell back sheets being fixed to the back surfaces of solar cell chips. It is worth mentioning that the solar cell can be a copper indium gallium selenide solar thin film chip cell, a silicon-based thin film chip cell, a cadmium telluride thin film chip cell, a gallium arsenide thin film chip cell, a dye-sensitized solar thin film chip cell or an organic flexible solar thin film chip cell.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery backsheet, comprising:
the substrate layer is provided with a first surface and a second surface which are oppositely arranged;
the battery back sheet also has a flame retardant layer; and a second adhesive layer, an insulating layer, a first heat dissipation layer and a second heat dissipation layer are sequentially prepared on the second surface of the base material layer.
2. The battery backsheet according to claim 1, wherein the flame retardant layer is one of polyethylene and polyethylene terephthalate.
3. The battery back sheet of claim 1, wherein the substrate layer is one of aluminum, copper, and gold foil.
4. The battery back sheet according to claim 1, wherein the first surface of the substrate layer is sequentially prepared with a first adhesive layer and the flame retardant layer.
5. The battery backboard according to claim 4, wherein the first adhesive layer and the second adhesive layer are flame-retardant and heat-conductive adhesive layers, and the flame-retardant and heat-conductive adhesive layers are one or more of acrylate, epoxy resin, polyurethane and polyester.
6. The battery back sheet according to claim 5, wherein the heat conductive filler in the flame-retardant heat conductive adhesive layer is one or more of BN, graphite powder and SiC.
7. The battery back sheet of claim 4, wherein the insulating layer is one of polyamide and polyethylene terephthalate.
8. The battery back sheet of claim 4, wherein the first heat sink layer is a water absorbing heat sink layer.
9. The battery backsheet according to claim 4, wherein the second heat dissipation layer is a heat dissipation coating.
10. A solar cell comprising a solar cell chip and the cell back sheet according to any one of claims 1 to 9, wherein the cell back sheet is fixed to the back surface of the solar cell chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163386.4U CN210073885U (en) | 2018-12-24 | 2018-12-24 | Battery backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163386.4U CN210073885U (en) | 2018-12-24 | 2018-12-24 | Battery backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210073885U true CN210073885U (en) | 2020-02-14 |
Family
ID=69424491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163386.4U Active CN210073885U (en) | 2018-12-24 | 2018-12-24 | Battery backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210073885U (en) |
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2018
- 2018-12-24 CN CN201822163386.4U patent/CN210073885U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201202 Address after: No. 101400 Yanqi Economic Development Zone, Huairou Patentee after: Beijing Huihong Technology Co., Ltd Address before: Room 107, Building 2, Olympic Village Street Comprehensive Office District, Chaoyang District, Beijing Patentee before: HANERGY MOBILE ENERGY HOLDING GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210930 Address after: 101400 Yanqi Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Dongjun new energy Co.,Ltd. Address before: 101400 No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing (cluster registration) Patentee before: Beijing Huihong Technology Co., Ltd |