WO2010050343A1 - Feuille de protection de surface arrière de batterie solaire et module de batterie solaire - Google Patents

Feuille de protection de surface arrière de batterie solaire et module de batterie solaire Download PDF

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Publication number
WO2010050343A1
WO2010050343A1 PCT/JP2009/067403 JP2009067403W WO2010050343A1 WO 2010050343 A1 WO2010050343 A1 WO 2010050343A1 JP 2009067403 W JP2009067403 W JP 2009067403W WO 2010050343 A1 WO2010050343 A1 WO 2010050343A1
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Prior art keywords
resin
solar cell
solar battery
film
layer
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PCT/JP2009/067403
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English (en)
Japanese (ja)
Inventor
當間　恭雄
泰光 藤野
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コニカミノルタホールディングス株式会社
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Publication of WO2010050343A1 publication Critical patent/WO2010050343A1/fr

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    • 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
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2457/10—Batteries
    • 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 relates to a back surface protection sheet for solar cells and a solar cell module using the same.
  • a solar cell module uses a sealing material such as ethylene-vinyl acetate (EVA) or silicon to sandwich a solar cell that generates electricity by receiving sunlight between the front and back protective members.
  • EVA ethylene-vinyl acetate
  • the structure is In these solar cell modules, since an electromotive force is insufficient in one cell, it is rarely configured from a single cell, and usually a plurality of solar cells are connected in series or series-parallel. That is, as shown in FIG. 1, the electrodes (surface electrode 11 and back electrode 12) between solar cells 1 are connected using a wiring 3 such as a conductive material, and these solar cells 1 and a wiring that is a conductive material. 3 is sandwiched between protective members (light incident side transparent protective member 41 and back surface protective sheet 42) made of glass, a resin plate, a resin film, metal, or the like using a sealing material (sealing agent layer 2). ing.
  • protective members light incident side transparent protective member 41 and back surface protective sheet 42
  • a sealing material
  • a sealing material and a back surface protection sheet made of a resin material are repeatedly expanded in the daytime due to a temperature rise due to heating by incident sunlight, and are cooled and contracted at night when sunlight is not applied. Yes.
  • solar cells there is an increasing supply of silicon wafers used for solar cells and demands for cost reduction.
  • a thin solar battery module manufactured using such a thin-layer solar battery cell is more susceptible to thermal shrinkage due to the temperature rise of the sealing material on the back surface side of the solar battery cell and the back surface protection member. Therefore, problems such as cracking of the solar battery cell and peeling of the back electrode, and peeling between the sealing material and the back surface protection material occur, and moisture enters the gap to deteriorate the solar battery cell. There is a problem.
  • Patent Document 4 It has also been proposed to use a transparent multilayer sheet having a layer with an average linear expansion coefficient of 50 ppm for a solar cell (for example, see Patent Document 4).
  • Patent Document 4 does not specifically describe which member of the solar cell the transparent multilayer sheet is used for.
  • these conventionally known resin materials containing reinforcing fibers do not provide a low linear expansion film of 30 ppm / ° C. or less, and the low linear expansion material as in the present invention is used as a back protective sheet for solar cells.
  • an object of the present invention is to provide a back sheet for a solar battery that can be used stably for a long period of time even if thin solar cells are used, and a solar battery module using the same.
  • a back protective sheet for a solar cell in which resin layers are laminated on both sides of a barrier film, wherein a resin layer having a linear expansion coefficient of 30 ppm / ° C. or less is laminated on at least one side of the barrier film.
  • the back surface protection sheet for solar cells characterized.
  • a solar cell module using thin-layer solar cells can provide a solar cell back surface protection sheet that is stable against heating and cooling during use and can be used for a long period of time.
  • FIG. 1 and FIG. 2 are a part of a schematic cross-sectional view showing an example of a general solar battery module.
  • FIG. 1 is a schematic diagram showing a state in which adjacent solar battery cells 1 are connected by wiring 3. is there.
  • the solar cells 1 connected in this way are sandwiched between the light incident side transparent protective member 41 and the back surface protective sheet 42 via the sealing material layer 2.
  • the present invention relates to the back surface protection sheet 42, and as shown in FIG. 3, a barrier film 51, a cell side resin layer 52 (cell side film 52) and a back surface side resin layer 53 disposed on both surfaces thereof. It is a laminate composed of (back side film 53), and either one or both of the cell side resin layer 52 and the back side resin layer 53 is a resin material having a linear expansion coefficient of 30 ppm / ° C. or less. . In the present invention, it is particularly preferable that at least the cell-side resin layer 52 is made of a resin material having a linear expansion coefficient of 30 ppm / ° C. or less from the viewpoint that the object and effects of the present invention can be exhibited. Furthermore, an adhesive layer can be provided between the barrier film 51 and the cell-side resin layer 52 and the back-side resin layer 53.
  • At least one outermost layer is preferably made of a resin material having a linear expansion coefficient of 30 ppm / ° C. or less.
  • the barrier film used in the present invention is a film having at least a gas barrier property, and a metal thin film such as an aluminum foil and a copper foil, a film in which an inorganic oxide layer is laminated on a base film, and the like can be used. However, a film obtained by laminating an inorganic oxide layer on a base film is preferable.
  • the barrier film according to the present invention has a water vapor transmission rate of 0.01 g / m 2 / day or less, more preferably 1 ⁇ 10 ⁇ 3 g / m 2 as gas barrier properties, measured according to JIS K7129 B method.
  • Water vapor permeability (25 ⁇ 0.5 ° C., relative humidity (90 ⁇ 2)% RH) measured by a method according to JIS K 7129-1992 is 1 ⁇ 10 ⁇ 3 g / (m 2 ⁇ 24 h) or less
  • the oxygen permeability measured by a method according to JIS K 7126-1987 is preferably 1 ⁇ 10 ⁇ 3 ml / m 2 ⁇ 24 h ⁇ atm or less.
  • the barrier film preferably has a water vapor permeability (25 ⁇ 0.5 ° C., relative humidity (90 ⁇ 2)% RH) of 1 ⁇ 10 ⁇ 3 g / (m 2 ⁇ 24 h) or less.
  • a cell-side resin layer and a back-side resin layer are provided on both surfaces of a barrier film in which an inorganic oxide layer is formed on one surface side of a base film.
  • the cell-side resin layer is formed on the inorganic oxide layer, and the cell-side resin layer is a resin layer having a linear expansion coefficient of 30 ppm / ° C. or less and is in contact with the sealing material layer.
  • linear expansion coefficient referred to in the present invention was specifically measured according to the method shown below.
  • a resin layer having a film thickness of 100 ⁇ m and a width of 4 mm was fixed at a distance between chucks of 20 mm, and once the temperature was raised from room temperature to 180 ° C. to remove residual strain, room temperature to 10 ° C. / Min. The temperature was raised to 250 ° C., a temperature-strain curve was taken, and the linear expansion coefficient was determined according to the method specified in ASTM D 696.
  • the base film applicable to the present invention is formed with a synthetic resin as a main component and is not particularly limited.
  • a synthetic resin for example, a polyethylene-based resin, a polypropylene-based resin, a cyclic polyolefin-based resin, a polystyrene-based resin, acrylonitrile- Styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polyvinyl chloride resin, fluorine resin, poly (meth) acrylic resin, polycarbonate resin, polyester resin, polyamide resin Resins, polyimide resins, polyamideimide resins, polyarylphthalate resins, silicon resins, polysulfone resins, polyphenylene sulfide resins, polyethersulfone resins, polyurethane resins, acetal resins, cellulose resins, etc.
  • polyester resins include polyethylene terephthalate, polyethylene naphthalate, etc.
  • polyethylene terephthalate is particularly well-balanced in terms of various functions such as heat resistance, weather resistance, and price. preferable.
  • the thickness of the base film is preferably 7 to 20 ⁇ m, particularly preferably 10 to 15 ⁇ m.
  • the thickness of the base film is less than 7 ⁇ m, the curling is likely to occur during the vapor deposition process for forming the inorganic oxide layer, and disadvantages such as difficulty in handling occur.
  • the thickness exceeds 20 ⁇ m, it is contrary to the demand for reduction in thickness and weight of the solar cell module.
  • the inorganic oxide layer formed on the base film is a layer for expressing a gas barrier property against oxygen, water vapor and the like, and is formed by depositing an inorganic oxide on the surface of the base film.
  • the vapor deposition means for forming this inorganic oxide layer is not particularly limited as long as the inorganic oxide can be vapor deposited on the synthetic resin base film without causing deterioration such as shrinkage and yellowing.
  • A Physical vapor deposition methods (Physical Vapor Deposition method; PVD method) such as vacuum deposition method, sputtering method, ion plating method, ion cluster beam method, (b) Plasma chemical vapor deposition method, thermal chemical vapor deposition method, A chemical vapor deposition method (Chemical Vapor Deposition method; CVD method) such as a photochemical vapor deposition method is employed.
  • PVD method Physical Vapor Deposition method
  • CVD method Chemical Vapor Deposition method
  • the vacuum vapor deposition method and the ion plating method are preferable from the viewpoint of high productivity and formation of a high-quality inorganic oxide layer.
  • the inorganic oxide constituting the inorganic oxide layer is not particularly limited as long as it has gas barrier properties.
  • aluminum oxide, silicon oxide, titanium oxide, zirconium oxide, zinc oxide, tin oxide, magnesium oxide Among them, aluminum oxide or silicon oxide having a good balance between gas barrier properties and price is particularly preferable.
  • the lower limit of the thickness (average thickness) of the inorganic oxide layer is preferably 0.3 nm, and particularly preferably 40 nm.
  • the upper limit of the thickness of the inorganic oxide layer is preferably 300 nm, and particularly preferably 80 nm. If the thickness of the inorganic oxide layer is smaller than the above lower limit, the gas barrier property may be lowered. On the other hand, when the thickness of the inorganic oxide layer exceeds the above upper limit, the flexibility of the inorganic oxide layer is reduced, and defects such as cracks are likely to occur.
  • the inorganic oxide layer may have a single layer structure or a multilayer structure of two or more layers.
  • the vapor deposition conditions in the physical vapor deposition method and the chemical vapor deposition method are appropriately designed according to the resin type of the base film, the thickness of the inorganic oxide layer, and the like.
  • an adhesion improving surface treatment for example, corona discharge treatment, ozone treatment, low temperature plasma treatment using oxygen gas or nitrogen gas, glow discharge treatment, oxidation treatment using chemicals, primer coating treatment, An undercoat process, an anchor coat process, a vapor deposition anchor coat process, etc. are mentioned.
  • the resin layer laminated on at least one side of the barrier film has a linear expansion coefficient of 30 ppm / ° C. or less, and preferably 20 ppm / ° C. or less.
  • the resin layer is not particularly limited as long as the linear expansion coefficient is a resin material in the range of 30 ppm / ° C. or less, but generally it is difficult to achieve such low linear expansion with a resin alone.
  • a resin material containing inorganic fine particles and reinforcing fibers is preferably used.
  • the inorganic fine particles include clay compounds such as carbon black and talc, which are generally used as a reinforcing material for resins, glass beads, carbonate fine particles such as calcium carbonate, and oxide fine particles such as alumina.
  • the reinforcing fiber include glass fiber, carbon fiber, and resin fiber.
  • the thickness of the resin layer formed on the barrier film or the resin layer having a linear expansion coefficient of 30 ppm / ° C. or less according to the present invention is 50 ⁇ m or more and 200 ⁇ m or less. A range is preferable.
  • At least one of the resin layers formed on the barrier film is a resin layer having a linear expansion coefficient of 30 ppm / ° C. or less, and the method of achieving the linear expansion coefficient defined in the present invention
  • the fiber applicable in the present invention is preferably a fiber having a ratio of fiber length to fiber diameter of 25 or more, particularly an average fiber diameter of 4 nm or more and 200 nm or less, and an average fiber length of 100 nm or more and 20 ⁇ m or less. It is preferable to be within the range.
  • a content rate with respect to the resin material of a fiber it is preferable that it is 0.1 to 30 mass%.
  • fibers having a fiber diameter of less than 4 nm or exceeding 200 nm may be contained in the fiber, but the ratio is preferably 30% by mass or less, and desirably the fiber diameter of all fibers. Is preferably 4 nm or more and 200 nm or less, particularly 100 nm or less, particularly 60 nm or less.
  • the fiber is observed with a transmission electron microscope at a magnification of 100,000 times, the short axis of 100 or more fibers is measured as the fiber diameter, and the arithmetic average value is calculated as the fiber.
  • the average fiber diameter is calculated as the fiber diameter.
  • the fiber used in the present invention is preferably a cellulose fiber.
  • Cellulose fibers refer to cellulose microfibrils constituting the basic skeleton of plant cell walls or the like or constituent fibers thereof, and are usually aggregates of unit fibers having an average fiber diameter of about 4 nm.
  • the cellulose fiber contains a crystal structure of 40% or more.
  • Cellulose fibers used in the present invention may be those isolated from plants, but bacterial cellulose produced by bacteria is preferred, and in particular, the product from bacteria is treated with alkali to dissolve and remove the bacteria. It is suitable to use what is obtained without disaggregation.
  • the fibers may be ones in which the single fibers are not sufficiently aligned and are sufficiently separated so that the matrix material enters between them.
  • the average fiber diameter is the average diameter of single fibers.
  • the fiber according to the present invention may be one in which a plurality of (may be many) single fibers are gathered into a bundle to form one yarn.
  • the fiber diameter is defined as the average value of the diameter of one yarn.
  • Bacterial cellulose consists of the latter yarn.
  • the length of the fiber applied to the present invention is not particularly limited, but an average length of 100 nm or more is preferable. When the average length of the cellulose fiber is shorter than 100 nm, the reinforcing effect is low, and the strength of the fiber-reinforced composite material may be insufficient. In addition, although a fiber length less than 100 nm may be contained in the fiber, it is preferable that the ratio is 30 mass% or less.
  • a resin material obtained by impregnating a matrix resin material into an aggregate of cellulose fibers described in JP-A-2007-51266 can also be used. Furthermore, a resin material obtained by dispersing cellulose fibers and then kneading the matrix resin can also be used.
  • the matrix resin material is not particularly limited.
  • a resin material having a linear expansion coefficient of 30 ppm or less is used for forming the cell side resin layer or the back side resin layer.
  • a resin layer having a linear expansion coefficient of 30 ppm or less is used as the cell-side resin layer, it is preferable to add a silane coupling agent or the like in order to improve the adhesion with the sealing material.
  • a ultraviolet absorber is not particularly limited as long as it is a compound that absorbs ultraviolet rays and can be efficiently converted into heat energy, and is stable to light, and a known one can be used.
  • salicylic acid-based UV absorbers have a high UV-absorbing function, good compatibility with the above-mentioned base polymer, and exist stably in the base polymer.
  • An acrylate ultraviolet absorber is preferable, and one or more selected from these groups may be used.
  • a polymer having an ultraviolet absorbing group in the molecular chain for example, “Hals Hybrid UV-G” series of Nippon Shokubai Co., Ltd.
  • a polymer having an ultraviolet absorbing group in such a molecular chain By using a polymer having an ultraviolet absorbing group in such a molecular chain, the compatibility with the polymer constituting the synthetic resin layer is high, and deterioration of the ultraviolet absorbing function due to bleeding out of the ultraviolet absorbent can be prevented.
  • the solar battery cell is conventionally thinned, and the back surface side sealing material layer 2, which is a low linear expansion resin material, is enclosed between the back surface of the solar battery cell 1 and the back surface side protection member 42 in the sealing material layer 2.
  • the solar cell module shown in FIG. 2 can be preferably used. Furthermore, in order to improve the adhesiveness of the back surface side sealing material layer which is said low linear expansion resin material, and a back surface side protection member, an adhesive layer can also be inserted among them.
  • the solar cell used in the present invention has a semiconductor junction such as a PN junction or a PIN junction inside, a silicon semiconductor material such as single crystal silicon, polycrystalline silicon, or amorphous silicon, or a compound semiconductor material such as GaAs or CuInSe.
  • a general solar cell material such as an organic material such as a dye-sensitized system can be used.
  • a crystal material such as single crystal silicon, polycrystalline silicon, GaAs, or CuInSe is used.
  • the solar cell used is preferably used.
  • the thickness of the solar cell according to the present invention may be about 200 to 300 ⁇ m, which is conventionally used for crystalline silicon, but a thin solar cell of 150 ⁇ m or less is preferable because the high effect of the present invention can be obtained.
  • a solar cell having a thickness of 30 to 150 ⁇ m using a thin silicon wafer is preferable.
  • ethylene-vinyl acetate EVA
  • polyvinyl butyral PVB
  • silicon resin urethane resin
  • acrylic resin fluorine resin
  • Resin materials such as ionomer resins, ethylene-acrylic acid copolymers, ethylene-methacrylic acid copolymers, polyethylene resins, polypropylene resins, acid-modified polyolefin resins, and epoxy resins are used.
  • EVA having high adhesiveness is preferred.
  • the front surface electrode, the back surface electrode, and the wiring are formed of a conductive material such as silver, aluminum, copper, nickel, tin, gold, or an alloy thereof.
  • the electrode may have a single layer structure containing a conductive material or a multilayer structure.
  • SnO 2, ITO, IWO it may have a layer including a translucent conductive oxide such as ZnO.
  • the light incident side transparent protective member is usually a glass substrate such as silicate glass.
  • the thickness of the glass substrate is generally from 0.1 to 10 mm, and preferably from 0.3 to 5 mm.
  • the glass substrate may generally be chemically or thermally strengthened.
  • a resin material can also be used to reduce the weight of the solar cell module.
  • the resin material used as the light incident side transparent protective member is not particularly limited as long as the light receiving surface side of the solar cell is translucent.
  • an inorganic filler such as aluminum hydroxide or calcium hydroxide, a flame retardant, or the like may be sewn to provide nonflammability or flame retardancy. Further, it may be foamed by adding a foaming agent or the like, and may further be added with a plasticizer, a stabilizer, a foaming aid, an ultraviolet absorber, a pigment, or the like, and a metal foil is bonded thereto. It may be a thing.
  • Example 1 Preparation of back protection sheet ⁇ [Production of resin film]
  • a bacterial cellulose sheet having an acetyl group introduced therein was prepared in the same manner as described in JP-A-2007-51266, impregnated with an ultraviolet curable acrylic resin monomer TCDDMA (manufactured by Mitsubishi Chemical Corporation), and then irradiated with ultraviolet rays.
  • the resin film 1 having a thickness of 125 ⁇ m was produced.
  • the obtained resin film 1 was 18 ppm / degrees C.
  • the production conditions of the bacterial cellulose sheet are appropriately changed, and the resin film 2 having an average fiber diameter of 40 nm used, the resin film 3 having the same 8 nm, and Similarly, a resin film 4 having a thickness of 250 nm was produced.
  • the linear expansion coefficient of each obtained resin film they were 10 ppm / ° C., 4 ppm / ° C., and 25 ppm / ° C., respectively.
  • a resin film 5 having a thickness of 125 ⁇ m was prepared by mixing 0.075 g of Lucirin TPO (manufactured by BASF) and irradiating with ultraviolet rays. It was 32 ppm / degrees C as a result of measuring the linear expansion coefficient of the obtained resin film 5 by the same method.
  • Solar cell modules 1 to 13 having the configuration shown in FIG. 1 were produced.
  • the light incident side transparent protective member 41 composed of a glass plate (thickness 3 mm) and the back surface protective sheet 42 produced above.
  • two EVAs are connected.
  • a solar cell module was produced by sandwiching between sealing films.
  • the solar cell module was placed on a hot plate, and the solar cell module was subjected to a heating cycle test, with 6 hours as one cycle after the hot plate was operated at 100 ° C. for 3 hours and then stopped for 3 hours. And the nominal maximum output [W] in the time of 200 cycles, 400 cycles, and 600 cycles was calculated
  • the solar cell module of the present invention has a small output decrease in the heat cycle test, and a stable output can be obtained even after long-term use.
  • Example 2 In the production of the respective back surface protective sheets described in Example 1, resin films 1 to 5 and a commercially available low-density film were formed on a 12 ⁇ m thick PET film obtained by depositing 40 nm thick aluminum oxide by a vacuum deposition method as a barrier film. Each resin component constituting the linear expansion film MHD (manufactured by Nippon Steel Chemical Co., Ltd.) and polyethylene terephthalate (PET) film was dissolved in a solvent as appropriate, and then subjected to wet coating method (Wyer bar coating method). Each backside protective sheet was produced in the same manner except that the surface side resin layer and the backside resin layer were formed by coating and drying so as to have the same film thickness as that of each backside protective sheet produced in 1.
  • MHD manufactured by Nippon Steel Chemical Co., Ltd.
  • PET polyethylene terephthalate

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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)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur une feuille de protection de surface arrière de batterie solaire qui peut être utilisée de façon stable pendant une longue période de temps même lorsqu'une cellule de batterie solaire mince est utilisée. L'invention porte également sur un module de batterie solaire utilisant la feuille de protection. La feuille de protection de surface arrière de batterie solaire est formée par stratification d'une couche de résine sur les deux surfaces d'un film barrière. Une couche de résine ayant un coefficient de dilatation linéaire de 30 ppm/°C ou moins est stratifiée sur au moins un côté du film barrière.
PCT/JP2009/067403 2008-10-29 2009-10-06 Feuille de protection de surface arrière de batterie solaire et module de batterie solaire WO2010050343A1 (fr)

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JP2008278002 2008-10-29
JP2008-278002 2008-10-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5273313B2 (ja) * 2010-09-29 2013-08-28 Ｄｉｃ株式会社 セルロースの微細化方法、セルロースナノファイバー、マスタバッチ及び樹脂組成物
JP2014045177A (ja) * 2012-07-31 2014-03-13 Mitsubishi Plastics Inc 太陽電池モジュール及びこれに用いられる太陽電池用封止材
EP2680317A4 (fr) * 2011-02-23 2015-10-07 Mitsubishi Rayon Co Module de cellule solaire
CN112582490A (zh) * 2020-12-17 2021-03-30 苏州中来光伏新材股份有限公司 一种抗力学冲击的光伏背板、制备工艺及光伏组件

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WO2008010462A1 (fr) * 2006-07-19 2008-01-24 Pioneer Corporation feuille de nanofibre, son processus de fabrication, et matériau composite renforcé de fibre
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JPH09148606A (ja) * 1995-11-29 1997-06-06 Sanyo Electric Co Ltd 折曲できるフィルム状の太陽電池素子
JP2001053306A (ja) * 1999-08-16 2001-02-23 Kanegafuchi Chem Ind Co Ltd 太陽電池モジュール、およびこの太陽電池モジュールの製造方法
WO2006082964A1 (fr) * 2005-02-07 2006-08-10 Kyoto University Materiau composite a fibres renforcees et procede de production de celui-ci, et precurseur de production de materiau composite a fibres renforcees
JP2006316253A (ja) * 2005-03-31 2006-11-24 Asahi Kasei Chemicals Corp セルロース含有樹脂複合体
WO2008010462A1 (fr) * 2006-07-19 2008-01-24 Pioneer Corporation feuille de nanofibre, son processus de fabrication, et matériau composite renforcé de fibre
JP2008053470A (ja) * 2006-08-24 2008-03-06 Toyo Aluminium Kk 太陽電池モジュール用裏面保護シートとそれを備えた太陽電池モジュール

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JP5273313B2 (ja) * 2010-09-29 2013-08-28 Ｄｉｃ株式会社 セルロースの微細化方法、セルロースナノファイバー、マスタバッチ及び樹脂組成物
US8735470B2 (en) 2010-09-29 2014-05-27 Dic Corporation Method for fibrillating cellulose, cellulose nanofiber, masterbatch, and resin composition
EP2680317A4 (fr) * 2011-02-23 2015-10-07 Mitsubishi Rayon Co Module de cellule solaire
JP2014045177A (ja) * 2012-07-31 2014-03-13 Mitsubishi Plastics Inc 太陽電池モジュール及びこれに用いられる太陽電池用封止材
CN112582490A (zh) * 2020-12-17 2021-03-30 苏州中来光伏新材股份有限公司 一种抗力学冲击的光伏背板、制备工艺及光伏组件

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