WO2006067984A1 - 太陽電池用シート部材 - Google Patents
太陽電池用シート部材 Download PDFInfo
- Publication number
- WO2006067984A1 WO2006067984A1 PCT/JP2005/022740 JP2005022740W WO2006067984A1 WO 2006067984 A1 WO2006067984 A1 WO 2006067984A1 JP 2005022740 W JP2005022740 W JP 2005022740W WO 2006067984 A1 WO2006067984 A1 WO 2006067984A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solar cell
- layer
- resin film
- film
- sheet member
- Prior art date
Links
- 229920005989 resin Polymers 0.000 claims abstract description 89
- 239000011347 resin Substances 0.000 claims abstract description 89
- -1 polyethylene terephthalate Polymers 0.000 claims description 27
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 23
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 23
- 229920000728 polyester Polymers 0.000 claims description 13
- 239000012463 white pigment Substances 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 229920006290 polyethylene naphthalate film Polymers 0.000 claims description 6
- 239000011112 polyethylene naphthalate Substances 0.000 abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011888 foil Substances 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 126
- 239000000049 pigment Substances 0.000 description 27
- 239000002987 primer (paints) Substances 0.000 description 19
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000012790 adhesive layer Substances 0.000 description 9
- 238000009820 dry lamination Methods 0.000 description 9
- 239000005038 ethylene vinyl acetate Substances 0.000 description 9
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229920002799 BoPET Polymers 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009823 thermal lamination Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011354 acetal resin Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000012772 electrical insulation material Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/04—4 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
-
- 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
Definitions
- the present invention generally relates to a solar cell sheet member, and more particularly to a knock sheet (protective sheet) used by being disposed on the back side of a solar cell module.
- a transparent glass plate is disposed on the surface side.
- a laminated sheet of a resin film such as an aluminum foil and a polyethylene terephthalate (PET) film, or a resin film such as a PET film on which an oxide is deposited is often disposed.
- JP-A-7-74378 Patent Document 1
- JP-A-10-25357 Patent Document 2
- JP-T 2002-520820 Patent Document 3
- the thickness of the oxide layer is as thin as about 30 to 120 nm. During the process or during use, cracks may occur due to slight impacts or friction, and sufficient barrier properties may not be ensured.
- Patent Document 1 Japanese Patent Laid-Open No. 7-74378
- Patent Document 2 Japanese Patent Laid-Open No. 10-25357
- Patent Document 3 Japanese Translation of Special Publication 2002-520820
- an object of the present invention is to provide a practical noble property only with a resin film without using a resin film on which an aluminum foil is deposited, and has impact resistance and water resistance. It is providing the sheet
- the solar cell sheet member according to the present invention is a solar cell sheet member disposed on the back side of the solar cell module, and is formed of a plurality of resin film layers, and the plurality of resin film layers. Is composed of an inner layer arranged on the side relatively close to the solar cell module and an outer layer arranged on the side relatively far from the solar cell module, and this outer layer is made of polyethylene naphthalate (PEN) phenol. Including.
- PEN polyethylene naphthalate
- the outer layer by arranging the outer layer to include a polyethylene naphthalate film, a good barrier property can be obtained even if only a plurality of resin film layers are configured.
- a solar cell sheet member having impact resistance and water resistance can be obtained.
- a plurality of resin film layers may include a polyethylene terephthalate (PET) film! /.
- PET polyethylene terephthalate
- the polyethylene terephthalate film preferably contains a white pigment for the purpose of blocking ultraviolet rays and the like.
- the plurality of resin film layers preferably include portions laminated in the order of polyethylene naphthalate film z polyethylene terephthalate film Z polyethylene naphthalate film. .
- a film member for a solar cell having excellent noria properties, impact resistance, and water resistance can be obtained even if only a plurality of resin film layers are configured with force. .
- FIG. 1 is a diagram showing a schematic cross-sectional structure of a solar cell module to which a solar cell sheet member as one embodiment according to the present invention is applied.
- FIG. 2 is a cross-sectional view showing one embodiment of a backsheet.
- FIG. 3 is a cross-sectional view showing another embodiment of the backsheet.
- FIG. 4 is a cross-sectional view showing one comparative example of the backsheet.
- FIG. 5 is a cross-sectional view showing another comparative example of the backsheet.
- FIG. 1 is a diagram showing a schematic cross-sectional structure of a solar cell module to which a solar cell sheet member as one embodiment according to the present invention is applied.
- a large number of solar cell elements 1 are arranged in the solar cell module 100. These solar cell elements 1 are electrically connected to each other through the connection wiring 3 via the electrode 2, and as a whole the solar cell module 100, the terminal 5 is taken out by the lead wire 4 and the terminal 5 is the terminal box. 6 is housed. Fillers 7 such as ethylene acetate butyl copolymer (EVA) resin are arranged to seal a large number of solar cell elements 1.
- EVA ethylene acetate butyl copolymer
- FIG. 2 is a cross-sectional view showing one embodiment of the backsheet 10
- FIG. 3 is a cross-sectional view showing another embodiment of the backsheet 10.
- the back sheet 10 has a resin film layer 11 having a polyethylene naphthalate (PEN) film force from an outer layer disposed on the far side (outer side) relative to the solar cell module force.
- PEN polyethylene naphthalate
- Three resin film layers laminated in the order of a resin film layer 12 made of polyethylene terephthalate (PET) film and a resin film layer 13 also made of polyethylene naphthalate (PEN) film force are formed.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- the inner surface is coated with a polyester or acrylic primer layer 15!
- An adhesive layer 14 is disposed between the resin film layers 11 and 12 and between the resin film layers 12 and 13.
- the knock sheet 10 is made of a polyethylene naphthalate (PEN) film cover from an outer layer disposed on the side (outside) where the solar cell module force is relatively far away.
- Layer 11 and resin film made of polyethylene terephthalate (PET) film are formed in the order of two resin film layers laminated in the order of layer 12, and polyester or acrylic primer is formed on the inner surface of resin film layer 12
- Layer 15 is coated.
- An adhesive layer 14 is disposed between the resin film layers 11 and 12.
- the outer layer disposed on the side farther (outer) relative to the solar cell module force includes polyethylene naphthalate (PEN) phenol. .
- the backsheet 10 as the solar cell sheet member of the present invention comprises a plurality of resin film layers, and is formed of at least two resin film layers, preferably three resin film layers. If possible, the film may be composed of four or more layers of resin film.
- the thickness of the PEN film used for the solar cell sheet member of the present invention is preferably 9 ⁇ m or more and 150 ⁇ m or less, more preferably m or more and 100 ⁇ m or less. If the thickness is less than 9 m, there is a risk of inadvertent tearing or wrinkling. On the other hand, if the thickness exceeds 150 m, the manufacturing cost increases and productivity may be hindered.
- the PEN film may be used for the outer layer disposed on the side (outside) relatively far from the solar cell module force, but is disposed on the side (inside) relatively close to the solar cell module. It can also be used in combination with the inner layer and intermediate layer.
- PEN film as the outer layer of the back sheet, the moisture resistance and water resistance of the knock sheet can be improved and the life of the solar cell module can be extended.
- the PEN film is excellent in the ability to shield ultraviolet rays having a wavelength of 380 nm or less, it also has an effect of protecting the inner layer side resin and the like from the ultraviolet rays.
- the resin film constituting the intermediate layer of the knock sheet is not particularly limited.
- polyolefin films such as polyethylene (high density polyethylene, low density polyethylene, linear low density polyethylene), polypropylene, polybutene, etc. Fat, (meth) acrylic resin, polyvinyl chloride resin, polystyrene resin, polysalt-vinylidene resin, saponified ethylene acetate copolymer, polybutyl alcohol, Polycarbonate resin, fluorine resin, polyvinyl acetate resin, acetal resin, polyester resin (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate), polyamide resin, and other various resins
- a film or sheet of oil can be used, but the polyester is used in terms of strength, heat resistance and durability.
- Preferably used terephthalate film Preferably used terephthalate film.
- the thickness of the intermediate layer is preferably 50 ⁇ m or more and 500 ⁇ m or less, more preferably 100 ⁇ m or more and 300 ⁇ m or less.
- the thickness of the intermediate layer is less than 50 ⁇ m, the strength of the entire back sheet is lowered, and warping (curling) is likely to occur.
- the thickness of the intermediate layer exceeds 50 O / zm, the production cost increases and flexibility becomes poor, which may hinder handling.
- an anchor is provided on the surface thereof.
- a surface smoothing treatment or the like can be performed by coating a coating agent or the like.
- the inner layer can be laminated with the same or different type of resin film as the outer layer or the intermediate layer. Also, depending on the required performance, etc., the knock sheet also has a two-layer force of the outer layer and the inner layer, and it is not necessary to arrange the intermediate layer.
- the PEN film has the same thickness as that of the outer layer, preferably 9 m or more and 150 m or less, more preferably May be in the range of 12 ⁇ m to 100 ⁇ m. If the thickness is less than 9 ⁇ m, it may be inadvertently broken or wrinkled. On the other hand, if the thickness exceeds 150 m, the manufacturing cost increases and productivity may be hindered.
- the use of PEN film for both the outer and inner layers of the back sheet further improves the moisture resistance and water resistance of the back sheet. Can extend the lifespan.
- the reason for using PEN film as the inner layer is that the components, wiring, and sealing resin inside the solar cell contain a very small amount of moisture, or even if it is adsorbed, the effect of moisture on the inner side. This is because it cannot be ignored.
- a white pigment such as titanium oxide or barium sulfate may be mixed in at least one of the outer layer, the intermediate layer, and the inner layer.
- a white polyethylene terephthalate film can be used as the intermediate layer.
- known additives such as known UV absorbers other than white pigments, moisture absorbers (drying agents), oxygen absorbers, and anti-oxidation agents may be mixed in at least one of the above layers. it can.
- a method for laminating each of the above layers a known method may be used.
- the dry lamination method it is preferable to laminate by a dry lamination method using an adhesive containing urethane resin.
- a force showing an example in which the knock sheet has a two-layer or three-layer resin film layer force for example, by using the same or different types of resin film to make the intermediate layer into two or more layers. Monkey.
- the inner surface of the backsheet has a sealing resin such as an ethylene-vinyl acetate copolymer (EVA) resin and the like.
- EVA ethylene-vinyl acetate copolymer
- a primer layer can be formed. It is preferable to use acrylic primer, polyester primer, etc. as a primer agent. Yo, it is about 2 ⁇ 15gZm 2 coating amount of the primer agent.
- Each backsheet was configured as follows.
- the back sheet 10 is a resin film that has a 25 ⁇ m thick polyethylene naphthalate (PEN) film from the outer layer placed on the far side (outer side) of the solar cell module.
- Layer 11 is also formed in the order of a resin film layer 12 consisting of a polyethylene terephthalate (PET) film cover with a thickness of 188 ⁇ m including a white pigment.
- PET polyethylene terephthalate
- a polyester-based primer layer 15 was coated on the inner surface.
- an adhesive layer 14 made of an adhesive for dry lamination was disposed between the resin film layers 11 and 12, an adhesive layer 14 made of an adhesive for dry lamination was disposed.
- the knock sheet 10 is a resin that also becomes a polyethylene naphthalate (PEN) film with a thickness of 25 ⁇ m from the outer layer placed on the far side (outer side) of the solar cell module force.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- the knock sheet 10 has a relatively far side (outside From the outer layer placed on the side), the resin film layer 11 also has a polyethylene naphthalate (PEN) film with a thickness of 25 ⁇ m, and consists of a polyethylene terephthalate (PET) film with a thickness of 188 ⁇ m including a white pigment.
- PEN polyethylene naphthalate
- PET polyethylene terephthalate
- Three resin film layers are also formed in the order of resin film layer 12 and resin film layer 13 made of polyethylene naphthalate (PEN) film with a thickness of 25 ⁇ m.
- Acrylic primer layer 15 force S coated.
- an adhesive layer 14 made of an adhesive for dry lamination was disposed between the resin film layers 11 and 12, and between the resin film layers 12 and 13, an adhesive layer 14 made of an adhesive for dry lamination was disposed.
- the knock sheet 10 is a resin film that also has a polyethylene terephthalate (PET) film with a thickness of 25 ⁇ m from the outer layer placed on the far side (outer side) of the solar cell module.
- Laminate 11, layer 18 of polyethylene terephthalate (PET) film with a thickness of 188 ⁇ m including white pigment, and resin film layer 13 of polyethylene terephthalate (PET) film with a thickness of 25 ⁇ m are laminated in this order.
- the polyester resin layer 15 was coated on the inner surface of the resin film layer 13. Between the resin film layers 11 and 12, and between the resin film layers 12 and 13, an adhesive layer 14 such as an adhesive layer for dry lamination was disposed.
- the knock sheet 20 is a resin film that also has a polyethylene terephthalate (PET) film with a thickness of 25 ⁇ m from the outer layer on the side where the solar cell module force is relatively far (outside).
- Layer 11 Polyethylene terephthalate 12 consisting of 12 ⁇ m thick polyethylene terephthalate (PET) film with silicon oxide layer 16 deposited on the inner surface, and 188 ⁇ m thick polyethylene terephthalate containing white pigment (PET) film strength
- PET polyethylene terephthalate
- PET polyethylene terephthalate containing white pigment
- the knock sheet 30 also has a relatively far side (outside 50m thick polyethylene terephthalate (PET) film layer 11 containing white pigment, 7m thick aluminum layer 17 layer, white layer A polyester primer formed on the inner surface of the resin film layer 13, which is formed from three resin film layers laminated in the order of a resin film layer 13 made of a polyethylene terephthalate (PET) film having a thickness of 50 m including pigment. Layer 15 was coated. Between the resin film layer 11 and the aluminum layer 17, and between the aluminum layer 17 and the resin film layer 13, an adhesive layer 14 having an adhesive force for dry lamination was disposed.
- PET polyethylene terephthalate
- PEN Teijin DuPont Films Co., Ltd. (Teonex) PEN film
- Dielectric strength Strength of dielectric breakdown of each laminate in accordance with the test method of “Dielectric strength” specified in JIS-C2110: 94 (Test method for dielectric strength of solid electrical insulation materials) was measured. [0049] Test conditions were as follows.
- Test medium Insulating oil (mineral oil)
- the electrode configuration was as follows.
- Examples 1 to 3 of the present invention have a lower rate of decrease in tensile strength even when left in a high-temperature and high-humidity atmosphere for a longer time than Comparative Examples 1 to 3.
- EVA The holding power, withstand voltage, and water vapor permeability were as good as those of Comparative Examples 1 to 3.
- the solar cell sheet member of the present invention is disposed on the back side of the solar cell module and used as a back sheet (protective sheet).
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
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JP2004368985A JP2006179557A (ja) | 2004-12-21 | 2004-12-21 | 太陽電池用シート部材 |
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WO2012133124A1 (ja) * | 2011-03-25 | 2012-10-04 | 富士フイルム株式会社 | 太陽電池用ポリマーシート及びその製造方法、太陽電池用バックシート、並びに太陽電池モジュール |
EP2121319A4 (en) * | 2007-03-09 | 2015-11-04 | 3M Innovative Properties Co | MULTILAYER FILM |
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WO2011079292A1 (en) * | 2009-12-23 | 2011-06-30 | Madico,Inc. | High performance backsheet for photovoltaic applications and method for manufacturing the same |
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JP5831856B2 (ja) * | 2011-09-15 | 2015-12-09 | 東京尽陽株式会社 | 太陽電池用バックシート及び太陽電池用バックシートの製造方法 |
JP6135060B2 (ja) * | 2012-07-27 | 2017-05-31 | 大日本印刷株式会社 | 太陽電池モジュール用裏面保護シート |
EP2824717B1 (en) | 2013-07-09 | 2016-12-28 | Agfa-Gevaert | A backsheet for photovoltaic modules |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP2121319A4 (en) * | 2007-03-09 | 2015-11-04 | 3M Innovative Properties Co | MULTILAYER FILM |
EP2124261A1 (de) * | 2008-05-23 | 2009-11-25 | Alcan Technology & Management Ltd. | Rückseitenlaminat-Struktur für ein Fotovoltaik-Modul |
WO2009141102A2 (de) * | 2008-05-23 | 2009-11-26 | Alcan Technology & Management Ltd. | Fotovoltaik-modul |
WO2009141102A3 (de) * | 2008-05-23 | 2010-05-27 | Alcan Technology & Management Ltd. | Rückseitenlaminat-struktur für ein fotovoltaik-modul |
WO2012133124A1 (ja) * | 2011-03-25 | 2012-10-04 | 富士フイルム株式会社 | 太陽電池用ポリマーシート及びその製造方法、太陽電池用バックシート、並びに太陽電池モジュール |
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