WO2017141621A1 - 接着テープ収容体および太陽電池モジュールの製造方法 - Google Patents
接着テープ収容体および太陽電池モジュールの製造方法 Download PDFInfo
- Publication number
- WO2017141621A1 WO2017141621A1 PCT/JP2017/001901 JP2017001901W WO2017141621A1 WO 2017141621 A1 WO2017141621 A1 WO 2017141621A1 JP 2017001901 W JP2017001901 W JP 2017001901W WO 2017141621 A1 WO2017141621 A1 WO 2017141621A1
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- WIPO (PCT)
- Prior art keywords
- solar cell
- adhesive tape
- adhesive
- adhesive layer
- cell element
- Prior art date
Links
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 180
- 238000000034 method Methods 0.000 title claims description 17
- 239000012790 adhesive layer Substances 0.000 claims abstract description 130
- 239000010408 film Substances 0.000 claims description 60
- 239000013039 cover film Substances 0.000 claims description 51
- 239000000853 adhesive Substances 0.000 claims description 35
- 230000001070 adhesive effect Effects 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 230000004048 modification Effects 0.000 description 15
- 238000012986 modification Methods 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- 239000010410 layer Substances 0.000 description 10
- 229910021417 amorphous silicon Inorganic materials 0.000 description 8
- 229920002799 BoPET Polymers 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Images
Classifications
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- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/206—Particular processes or apparatus for continuous treatment of the devices, e.g. roll-to roll processes, multi-chamber deposition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
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- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
- H01L31/0201—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising specially adapted module bus-bar structures
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- H01L31/02—Details
- H01L31/0224—Electrodes
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- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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- 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
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- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
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- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
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- 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
- H01L31/06—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 characterised by potential barriers
- H01L31/072—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 characterised by potential barriers the potential barriers being only of the PN heterojunction type
- H01L31/0745—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 characterised by potential barriers the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells
- H01L31/0747—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 characterised by potential barriers the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells comprising a heterojunction of crystalline and amorphous materials, e.g. heterojunction with intrinsic thin layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
- C09J2301/204—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive coating being discontinuous
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/22—Presence of unspecified polymer
- C09J2400/226—Presence of unspecified polymer in the substrate
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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 an adhesive tape container and a method for manufacturing a solar cell module, and more particularly to an adhesive tape container used for manufacturing a solar cell module and a method for manufacturing a solar cell module.
- solar cell modules are being developed as photoelectric conversion devices that convert light energy into electrical energy.
- the solar cell module is expected as a new energy source because it can convert inexhaustible sunlight directly into electricity, and it has a smaller environmental load and is cleaner than power generation using fossil fuels.
- the solar cell module has, for example, a structure in which a plurality of solar cell elements are sealed with a filling member between a surface protection member and a back surface protection member.
- the plurality of solar cell elements are arranged in a matrix.
- a plurality of solar cell elements arranged in a straight line along one of the row direction and the column direction form a string by connecting two adjacent solar cell elements by tab wiring.
- Patent Document 1 discloses an adhesive tape structure for joining a tab wiring to a solar cell element.
- This adhesive tape structure has a structure in which a plurality of strip-like adhesive tapes are connected in the longitudinal direction via a connecting member (connecting tape).
- the adhesive tape has a structure in which an adhesive layer and a release cover film are sequentially stacked on a base film.
- the connecting member has a structure in which an adhesive layer and a release film are sequentially stacked on a base material.
- Patent Document 1 the peeling cover film and the peeling film are peeled off from the adhesive tape structure, and the exposed adhesive layer is placed on the solar cell element, and then transferred to the solar cell element, and the transferred adhesive. It is described that the tab wiring is joined to the solar cell element by arranging the tab wiring on the layer.
- this invention was made
- an adhesive tape container includes a plurality of adhesive tapes that are provided so that an adhesive layer is provided on a band-shaped base film and are adjacent to each other in the longitudinal direction of the base film, and An adhesive tape structure having a strip-shaped connecting member disposed between each of the plurality of adhesive tapes, and a housing that is connected to one end side in the longitudinal direction of the adhesive tape structure and accommodates the adhesive tape structure And the adhesive tape is provided with a non-adhesive layer provided at the end located on the one end side of the adhesive tape structure of the both ends in the longitudinal direction of the base film. Includes adhesive area.
- the manufacturing method of the solar cell module which concerns on this invention is the process of preparing two solar cell elements adjacent in the direction parallel to a light-receiving surface, and the said two solar cell elements, Electrically connecting the plurality of finger electrodes so as to extend in a direction intersecting with each of the plurality of finger electrodes; and a step of forming a plurality of finger electrodes for collecting the received charge generated by the solar cell element Forming a bus bar electrode, disposing an adhesive tape structure of an adhesive tape container along the bus bar electrode, transferring an adhesive layer of the adhesive tape structure onto the bus bar electrode, and the bus bar. Disposing a tab wiring for electrically connecting the two solar cell elements on the adhesive layer transferred onto the electrode.
- the adhesive tape container according to the present invention it is possible to suppress contact of foreign matter to the solar cell element.
- FIG. 1 is a schematic plan view of a solar cell module related to the embodiment.
- FIG. 2 is a plan view of a solar cell element related to the embodiment.
- FIG. 3 is a cross-sectional view showing a laminated structure of solar cell elements related to the embodiment.
- FIG. 4 is a structural cross-sectional view in the column direction of the solar cell module related to the embodiment.
- FIG. 5 is a cross-sectional view showing an outline of the adhesive tape container according to the embodiment.
- 6A is a cross-sectional view of the adhesive tape structure constituting the adhesive tape container according to the embodiment (detailed view of the portion “VI” shown in FIG. 5), and FIG. It is A sectional drawing. (A) of FIG.
- FIG. 7 is a figure which shows the state which peeled the cover film of the adhesive tape structure shown in FIG. 6, and (b) is the figure which transferred the adhesive bond layer of the adhesive tape structure to the solar cell element.
- FIG. 8 is a cross-sectional view of an adhesive tape structure in a comparative example.
- (A) of FIG. 9 is the state which peeled the cover film of the adhesive tape structure in a comparative example
- (b) is a figure which shows the state which transcribe
- FIG. 10 is a cross-sectional view of an adhesive tape structure constituting an adhesive tape container in a modification of the embodiment.
- FIG. 1 is a schematic plan view of the solar cell module 1.
- the solar cell module 1 shown in FIG. 1 includes a plurality of solar cell elements 11, a tab wiring 20, a cross wiring 30, and a frame 15.
- the solar cell element 11 is a planar photovoltaic cell that is two-dimensionally arranged on the light receiving surface and generates electric power by light irradiation.
- the tab wiring 20 is a wiring member that is disposed on the surface of the solar cell element 11 and electrically connects the solar cell elements 11 adjacent in the column direction.
- the cross wiring 30 is a wiring member for connecting the solar cell strings.
- the solar cell string is an aggregate of a plurality of solar cell elements 11 arranged in the column direction and connected by the tab wiring 20.
- the frame body 15 is an outer frame member that covers the outer periphery of a panel in which a plurality of solar cell elements 11 are two-dimensionally arranged.
- FIG. 2 is a plan view of the solar cell element 11.
- the solar cell element 11 has a substantially square shape in plan view.
- the solar cell element 11 is, for example, 125 mm long ⁇ 125 mm wide ⁇ 200 ⁇ m thick.
- a plurality of striped bus bar electrodes 112 are formed in parallel to each other, and a plurality of striped finger electrodes 111 are formed in parallel to each other so as to be orthogonal to the bus bar electrodes 112. Yes.
- the bus bar electrode 112 and the finger electrode 111 constitute a collector electrode 110.
- the line width of the bus bar electrode 112 is, for example, 150 ⁇ m
- the line width of the finger electrodes 111 is, for example, 100 ⁇ m
- the pitch of the finger electrodes 111 is, for example, 2 mm.
- the tab wiring 20 is joined on the bus bar electrode 112.
- FIG. 3 is a cross-sectional view showing the laminated structure of the solar cell element 11.
- 2 is a cross-sectional view taken along the line III-III of the solar cell element 11 in FIG.
- an i-type amorphous silicon film 121 and a p-type amorphous silicon film 122 are formed in this order on the main surface of an n-type single crystal silicon wafer 101.
- the n-type single crystal silicon wafer 101, the i-type amorphous silicon film 121, and the p-type amorphous silicon film 122 form a photoelectric conversion layer, and the n-type single crystal silicon wafer 101 serves as a main power generation layer.
- the light receiving surface electrode 102 is formed on the p-type amorphous silicon film 122.
- a collecting electrode 110 including a plurality of bus bar electrodes 112 and a plurality of finger electrodes 111 is formed on the light receiving surface electrode 102.
- FIG. 3 only the finger electrode 111 of the collector electrode 110 is shown.
- an i-type amorphous silicon film 123 and an n-type amorphous silicon film 124 are formed in this order on the back surface of the n-type single crystal silicon wafer 101. Further, a light receiving surface electrode 103 is formed on the n-type amorphous silicon film 124, and a collecting electrode 110 including a plurality of bus bar electrodes 112 and a plurality of finger electrodes 111 is formed on the light receiving surface electrode 103.
- the light-receiving surface electrodes 102 and 103 are transparent electrodes made of, for example, ITO (indium tin oxide), SnO 2 (tin oxide), ZnO (zinc oxide), or the like.
- the solar cell element 11 may be a single-sided light receiving type or a double-sided light receiving type.
- FIG. 4 is a structural cross-sectional view of the solar cell module 1 in the column direction. Specifically, FIG. 4 is a IV-IV cross-sectional view of the solar cell module 1 of FIG.
- the solar cell module 1 shown in the figure includes a solar cell element 11 having a collector electrode 110 formed on the front surface and the back surface, a tab wiring 20, an adhesive member 140, a surface filling member 170A and a back surface filling member 170B, The surface protection member 180 and the back surface protection member 190 are provided.
- the tab wiring 20 is a long conductive wiring, for example, a ribbon-shaped metal foil.
- the lower surface of one end of the tab wiring 20 is joined to the bus bar electrode 112 (see FIG. 2) on the surface side of one solar cell element 11 along the longitudinal direction of the bus bar electrode 112.
- the upper surface of the other end portion of the tab wiring 20 is joined to the bus bar electrode on the back surface side of the other solar cell element 11 along the longitudinal direction of the bus bar electrode 112.
- the tab wiring 20 and the bus bar electrode 112 are joined by an adhesive member 140. That is, the adhesive member 140 bonds the bus bar electrode 112 and the tab wiring 20 so that the bus bar electrode 112 and the tab wiring 20 overlap when the light receiving surface is viewed in plan. Thereby, the tab wiring 20 is connected to the solar cell element 11 via the adhesive member 140.
- the bonding structure between the bus bar electrode 112 and the tab wiring 20 is obtained by transferring the adhesive layer described later onto the bus bar electrode 112, placing the tab wiring 20 on the adhesive layer, and then curing. It is done.
- the plurality of finger electrodes 111 collect light-receiving charges generated by the solar cell element 11, and the bus bar electrode 112 is formed to extend in a direction intersecting with each of the plurality of finger electrodes 111.
- the received light charge is transmitted to the tab wiring 20.
- the adhesive tape container is an adhesive tape container for manufacturing a solar cell module, and includes an adhesive layer used for bonding the tab wiring 20 to the bus bar electrode 112.
- FIG. 5 is a cross-sectional view showing an outline of the adhesive tape container 50.
- 6A is a cross-sectional view of the adhesive tape structure 60 constituting the adhesive tape container 50 (detailed view of the portion “VI” shown in FIG. 5), and
- FIG. 6B is a cross-sectional view taken along the line AA. It is.
- the adhesive tape container 50 includes a strip-shaped adhesive tape structure 60 and a housing member 80 that houses the adhesive tape structure 60.
- the housing member 80 is, for example, a reel, and includes a core 81 and a pair of side plates 82 provided at both ends of the core 81.
- One end side in the longitudinal direction L of the adhesive tape structure 60 is connected to the winding core 81.
- the adhesive tape structure 60 is wound in the circumferential direction of the winding core 81.
- the adhesive tape structure 60 is wound so that an adhesive layer 63 (described later) is on the inside and the base film 62 is on the outside.
- the adhesive tape structure 60 is pulled out from the housing member 80 to the other end side in the longitudinal direction L as shown in FIG.
- the adhesive tape structure 60 includes a plurality of adhesive tapes 61 arranged adjacent to each other, and a connecting member 65 arranged between the adjacent adhesive tapes 61. It has.
- the adhesive tape structure 60 includes a first cover film 73 corresponding to the adhesive tape 61, a second cover film 74 corresponding to the connecting member 65, a base side connecting tape 71, and a cover side connecting tape 72. It has.
- the adhesive tape 61 has a strip-shaped base film 62 and an adhesive layer 63 provided on the base film 62.
- the plurality of adhesive tapes 61 are arranged adjacent to each other with an interval in the longitudinal direction L of the base film 62.
- the base film 62 has flexibility, and as a material, for example, a PET film is used.
- the base film 62 has a length of about 500 m, a width of about 1 mm, and a thickness of 10 to 100 ⁇ m.
- the adhesive layer 63 is formed on one surface of the base film 62.
- the adhesive layer 63 is an adhesive for electrically connecting the bus bar electrode 112 of the solar cell element 11 and the tab wiring 20.
- a conductive adhesive As the material of the adhesive layer 63 , for example, a conductive adhesive can be used.
- the conductive adhesive is an adhesive in which conductive particles are dispersed in a thermosetting adhesive resin material such as an epoxy resin, an acrylic resin, or a urethane resin.
- the thickness of the adhesive layer 63 is, for example, 10 ⁇ m to 100 ⁇ m.
- the adhesive tape 61 has a part where the adhesive layer 63 is not partially formed on one surface of the base film 62. That is, the adhesive tape 61 includes a non-adhesive region 64 where the adhesive layer 63 is not provided.
- the non-adhesion region 64 is provided in an end portion 62 a located on one end side (side connected to the housing member 80) of the adhesive tape structure 60, of both end portions 62 a and 62 b in the longitudinal direction L of the base film 62. It has been.
- the non-adhesion region 64 is a region provided to make the connecting member 65 difficult to contact the solar cell element 11 when the adhesive layer 63 is transferred to the solar cell element 11, for example.
- region 64 does not exist in the other edge part 62b of the longitudinal direction L of the base film 62, and the adhesive bond layer 63 is formed.
- the distance in the width direction of the non-adhesion region 64 is the same as the width of the base film 62 as shown in FIG.
- the distance d in the longitudinal direction L of the non-bonding region 64 is a predetermined distance d from the edge of the end portion 62a.
- the predetermined distance d is determined by the resolution of the camera that images the adhesive layer 63 after transfer, but is preferably 0.1 or more in terms of the ratio to the length of one side of the solar cell element 11.
- the predetermined distance d is more preferably 0.3 or less. In the present embodiment, since the length of one side of the solar cell element 11 is 125 mm, the predetermined distance d is preferably 12 or 5 mm or more.
- the predetermined distance d is more preferably 37.5 mm or less.
- the first cover film 73 is provided on the adhesive layer 63 and the non-adhesive region 64.
- the first cover film 73 has flexibility, and for example, a PET film is used as a material.
- a PET film is used as a material.
- the front and back surfaces of the cover film 73 the surface that contacts the adhesive layer 63 is subjected to a mold release treatment.
- the cover film 73 is peeled off before the adhesive layer 63 is transferred to the solar cell element 11.
- the connecting member 65 is a member for connecting the adjacent base films 62 and is disposed between the adjacent adhesive tapes 61.
- the connecting member 65 includes a belt-like base material 66 and an adhesive layer 67 provided on the base material 66.
- the base material 66 has flexibility, and as the material, a material in which a black filler is dispersed in PET resin is used.
- the length of the base material 66 is, for example, 0.3 m, and the width and thickness are the same as the width and thickness of the base film 62, respectively.
- the pressure-sensitive adhesive layer 67 is provided on the same surface as the side where the adhesive layer 63 of the adhesive tape 61 is present, of the front and back surfaces of the base material 66.
- the non-adhesive region 64 is one end of the adhesive tape structure 60 in both end portions 62 a and 62 b in the longitudinal direction L of the base film 62. It is provided at the end 62 a close to the edge of the connecting member 65 on the side opposite to the side (the side connected to the housing member 80).
- the second cover film 74 is provided on the adhesive layer 67 of the connecting member 65.
- the second cover film 74 has flexibility, and for example, a PET film is used as the material.
- a PET film is used as the material.
- the front and back surfaces of the cover film 74 the surface that contacts the adhesive layer 67 is subjected to a release treatment.
- the second cover film 74 is peeled off before the adhesive layer 63 is transferred to the solar cell element 11.
- the base-side connecting tape 71 is a tape that connects the adhesive tape 61 and the connecting member 65 on the surface of the adhesive tape 61 on the base film 62 side.
- the base side connecting tape 71 includes a base material 71a and an adhesive layer 71b.
- a PET film is used as the base material 71a
- an acrylic resin is used as the adhesive layer 71b.
- Adhesive tape 61 and connecting member 65 are connected by attaching base side connecting tape 71 to base film 62 and base material 66 of connecting member 65.
- the cover side connecting tape 72 is a tape that connects the first cover film 73 and the second cover film 74 on the surface on the first cover film 73 side.
- the cover side connecting tape 72 has a base material 72a and an adhesive layer 72b.
- a PET film is used as the base material 72a
- an acrylic resin is used as the adhesive layer 72b.
- the first cover film 73 and the second cover film 74 are connected by attaching the cover side connecting tape 72 to the cover films 73 and 74.
- the end of the base film 62 and the end of the base member 66 of the connecting member 65 are connected by the base-side connecting tape 71, and the end of the first cover film 73 and the second cover film.
- the end of 74 is connected by the cover side connecting tape 72.
- the adhesive tape structure 60 is comprised so that the 1st cover film 73 and the 2nd cover film may peel integrally.
- the cover films 73 and 74 are peeled off so that the adhesive layer 63 is exposed.
- the first cover film 73 is peeled from the end, the second cover film 74 is peeled off via the cover-side connecting tape 72 following the first cover film 73.
- the exposed adhesive layer 63 is transferred onto the bus bar electrode 112 of the solar cell element 11 by being pressed against the solar cell element 11 via the base film 62 by a thermocompression bonding head (not shown).
- the longitudinal direction L of the base film 62 in the above is the same direction as the direction in which the adhesive tape structure 60 extends when the adhesive tape structure 60 is pulled out from the housing member 80, and the adhesive tape structure 60. Is accommodated in the direction of the shape of the adhesive tape structure 60 contained in the accommodation member 80. For example, when the adhesive tape structure 60 is wound and accommodated on a reel, the winding direction is the longitudinal direction L of the base film 62.
- the manufacturing method of the solar cell module 1 includes a step of preparing the solar cell element 11, a step of forming the finger electrode 111, a step of forming the bus bar electrode 112, a step of transferring the adhesive layer 63, and the tab wiring 20. Arranging. Moreover, the manufacturing method of the solar cell module 1 includes a step of inspecting the transferred adhesive layer 63.
- the finger electrode 111 is formed by a printing method such as screen printing using a thermosetting resin-type conductive paste using a resin material as a binder and conductive particles such as silver particles as a filler.
- a bus bar electrode 112 that electrically connects the plurality of finger electrodes 111 is formed.
- the bus bar electrode 112 is formed on the front and back surfaces of the solar cell element 11 so as to extend in a direction intersecting with each of the plurality of finger electrodes 111.
- the bus bar electrode 112 is formed by, for example, a printing method such as screen printing using a thermosetting resin-type conductive paste using a resin material as a binder and conductive particles such as silver particles as a filler.
- the adhesive layer 63 of the adhesive tape structure 60 is transferred onto the bus bar electrodes 112 formed on the front surface and the back surface of the solar cell element 11.
- the adhesive tape structure 60 Prior to the transfer step, the adhesive tape structure 60 is pulled out from the housing member 80, and the first cover film 73, the cover-side connecting tape 72, and the second cover film 74 are peeled off sequentially from the end. Thereby, as shown in FIG. 7A, the adhesive layer 63 and the adhesive layer 67 of the adhesive tape structure 60 are exposed.
- the adhesive tape structure 60 from which the adhesive layer 63 is exposed is inverted 180 ° and disposed above the solar cell element 11. At this time, the adhesive layer 63 is disposed so as to face the bus bar electrode 112. Thereafter, the adhesive layer 63 is transferred onto the bus bar electrode 112 by pressing the adhesive tape structure 60 toward the solar cell element 11 from the back side of the base film 62 using a thermocompression bonding head.
- the adhesive layer 63 is formed so as to cover the bus bar electrodes 112 one by one.
- the adhesive layer 63 is formed on both the bus bar electrode 112 on the front surface of the solar cell element 11 and the bus bar electrode 112 on the back surface.
- the adhesive layer 63 is transferred onto the bus bar electrode 112 so as to be substantially the same as the length of one side of the solar cell element 11.
- the length of the adhesive layer 63 transferred to the solar cell element 11 may have an error of 20 mm or less, for example.
- the adhesive layer 63 transferred onto the solar cell element 11 is inspected. Specifically, the position or length of the end 63a of the adhesive layer 63 in the extending direction of the bus bar electrode 112 is inspected.
- the position or length of the end 63a of the adhesive layer 63 can be imaged using, for example, a camera.
- the presence or absence of the adhesive layer 63 at two positions may be detected using two cameras, and the position of the end 63a of the adhesive layer 63 may be detected. Further, the presence or absence of the adhesive layer 63 may be detected using a camera, and the quality of the adhesive layer 63 may be inspected.
- FIG. 7 is a view showing a state where the adhesive layer 63 of the adhesive tape structure 60 is transferred to the solar cell element 11.
- the terminal portion of the adhesive tape 61 (the end portion 62a of the base film 62) is disposed on the solar cell element 11, and transfer is performed at that position.
- an untransferred region 64a where the adhesive layer 63 is not transferred is formed from the left side 11a of the solar cell element 11 to the inside.
- the left side 11a is a side of the solar cell element 11 located in the direction opposite to the direction in which the adhesive tape structure 60 is drawn out of the four sides of the solar cell element 11 having a substantially square shape.
- the position or length of the end portion of the untransferred region 64a corresponding to the position and length of the end portion 63a of the adhesive layer 63 can also be detected.
- transfer is performed at the terminal portion of the adhesive tape 61, and it can be recognized as a transfer failure in which the adhesive layer 63 is not transferred onto the solar cell element 11.
- the end portion of the adhesive tape 61 includes the non-adhesive region 64 of a predetermined distance d, and thus the end portion of the adhesive tape 61 is disposed on the solar cell element 11.
- the connecting member 65 is positioned outside the left side 11 a of the solar cell element 11. Therefore, the non-adhesion region 64 is in contact with the solar cell element 11, and the connecting member 65 is less likely to be in contact with the solar cell element 11.
- it can also suppress that the adhesion layer 67 of the connection member 65 adheres to the solar cell element 11. Thereby, contact of foreign materials other than the adhesive tape 61 with respect to the solar cell element 11 can be suppressed, and deterioration of the quality of the solar cell element 11 can be suppressed.
- the end portion of the adhesive tape 61 includes the non-adhesive region 64 with a predetermined distance d, so that the length of the adhesive layer 63 is as shown in FIG.
- the length of one side of the solar cell element 11 is about 20% shorter.
- the inspection of the present embodiment it is inspected whether or not the adhesive layer 63 having a predetermined length or more is transferred onto the solar cell element 11 and whether or not extraneous foreign matter is in contact.
- the solar cell element 11 to which the adhesive layer 63 of a predetermined length or more has not been transferred, or the solar cell element 11 in contact with a foreign substance can be selected and removed.
- the tab wiring 20 is disposed on the adhesive layer 63 transferred onto the bus bar electrode 112.
- the tab wiring 20 is for electrically connecting the two solar cell elements 11.
- the tab wiring 20 can be produced by, for example, cutting a metal foil such as a copper foil or a silver foil, which is entirely covered with silver or solder, into a strip shape having a predetermined length.
- the solar cell module 1 can be manufactured by the process shown above.
- FIG. 8 is a cross-sectional view showing an adhesive tape structure 560 in a comparative example.
- the non-adhesive region 64 is not provided in the adhesive tape 61, and the adhesive layer 63 is provided on all of one surface of the base film 62. Yes.
- the adhesive tape structure 560 Prior to the transfer step, the adhesive tape structure 560 is pulled out from the housing member 80, and the first cover film 73, the cover-side connecting tape 72, and the second cover film 74 are peeled off in order from the end. As a result, as shown in FIG. 9A, the adhesive layer 63 and the adhesive layer 67 of the adhesive tape structure 560 are exposed.
- the adhesive tape structure 560 from which the adhesive layer 63 is exposed is turned 180 ° and then pressed from the back side of the base film 62 toward the solar cell element 11 using a thermocompression bonding head. As a result, the adhesive layer 63 is transferred onto the bus bar electrode 112.
- FIG. 9 is a diagram showing a state where the adhesive layer 63 of the adhesive tape structure 560 is transferred to the solar cell element 11.
- the terminal portion of the adhesive tape 61 is arranged on the solar cell element 11 in the step of transferring the adhesive layer 63 and the transfer is performed at the position, it is shown in FIG.
- the untransferred region 64a is formed from the left side 11a of the solar cell element 11 to the inside.
- the connecting member 65 comes into contact with the non-transfer area 64a, and the adhesive layer 67 of the connecting member 65 is It will adhere to the solar cell element 11.
- the foreign matter such as the connecting member 65 contacts, the quality of the solar cell element 11 may be deteriorated.
- the terminal portion of the adhesive tape 61 is disposed on the solar cell element 11 and the transfer is performed at that position.
- the distance (length in the longitudinal direction L) of the untransferred region 64a is smaller than in the present embodiment. Therefore, in the inspection process of the comparative example, it is difficult to detect that the untransferred region 64a is formed in the solar cell element 11, and the solar cell element 11 in a state where the untransferred region 64a is formed is flowed to the subsequent process. Sometimes.
- the non-adhesive region 64 is provided on the adhesive tape 61, whether or not the adhesive layer 63 having a predetermined length or more is transferred in the inspection process, and extraneous foreign matter. It is possible to determine whether or not they are in contact.
- the adhesive tape container 50 includes a plurality of adhesive tapes 61 provided with an adhesive layer 63 provided on a belt-like base film 62 and arranged adjacent to each other in the longitudinal direction L of the base film 62, and
- the adhesive tape structure 60 having a strip-shaped connecting member 65 disposed between each of the plurality of adhesive tapes 61 and the one end side in the longitudinal direction L of the adhesive tape structure 60 are connected to each other.
- the adhesive tape 61 is attached to the end 62a of the both ends 62a and 62b in the longitudinal direction L of the base film 62 on the one end side of the adhesive tape structure 60. It includes a non-bonded region 64 where the layer 63 is not provided.
- the non-adhesive region 64 comes into contact with the solar cell element 11. Can be prevented from coming into contact with foreign matters other than the adhesive tape 61.
- the length in the longitudinal direction L of the non-bonding region 64 may be a predetermined distance d from the edge of the end portion 62a.
- the predetermined distance d can be ensured as the non-adhesion region 64, the contact of foreign matter can be suppressed in the non-adhesion region 64 of the predetermined distance d.
- a base-side connecting tape 71 that connects the adhesive tape 61 and the connecting member 65 may be provided on the surface of the adhesive tape 61 on the base film 62 side.
- the adhesive tape 61 and the connecting member 65 can be connected so as not to be easily separated. Therefore, when the adhesive layer 63 is transferred to the solar cell element 11 using the adhesive tape container 50, the adhesive layer 63 can be transferred efficiently.
- a first cover film 73 may be provided so as to cover the adhesive layer 63 of the adhesive tape 61 and the non-adhesive region 64.
- the connecting member 65 includes a band-shaped base material 66 and an adhesive layer 67 provided on the base material 66, and further, a second cover film 74 is provided so as to cover the adhesive layer 67. Good.
- a cover-side connecting tape 72 that connects the first cover film 73 and the second cover film 74 may be provided on the surface on the first cover film 73 side.
- the efficiency at the time of peeling can be improved.
- the manufacturing method of the solar cell module 1 includes a step of preparing two solar cell elements 11 adjacent in a direction parallel to the light receiving surface, and the two solar cell elements 11 are generated by the solar cell elements 11.
- a step of arranging the tab wiring 20 for electrically connecting the two solar cell elements 11 on the adhesive layer 63 transferred thereon.
- the solar cell element 11 when the adhesive layer 63 is transferred to the solar cell element 11 using the adhesive tape container 50, the solar cell element 11 can be prevented from coming into contact with foreign matters other than the adhesive tape 61. The quality deterioration of the solar cell element 11 can be suppressed.
- the manufacturing method of the solar cell module 1 further includes the step of inspecting the transferred adhesive layer 63 between the step of transferring the adhesive layer 63 onto the bus bar electrode 112 and the step of arranging the tab wiring 20. May be included.
- the step of inspecting the adhesive layer 63 inspects whether or not the adhesive layer 63 having a predetermined length or more has been transferred onto the solar cell element 11 or whether or not extraneous foreign matter is in contact. It may be a process to do.
- the solar cell element 11 to which the adhesive layer 63 of a predetermined length or more has not been transferred, or the solar cell element 11 with which a foreign object has contacted can be selected and removed.
- the adhesive tape structure 60A constituting the adhesive tape container 50 in the modified example includes the adhesive layer 67 of the connecting member 65, the second cover film 74, and the cover side connecting tape 72. Not done.
- FIG. 10 is a cross-sectional view showing an adhesive tape structure 60A in a modified example.
- the adhesive tape container 50 includes a strip-shaped adhesive tape structure 60A and a housing member 80 that houses the adhesive tape structure 60A.
- the adhesive tape structure 60 ⁇ / b> A includes a plurality of adhesive tapes 61 arranged so as to be adjacent to each other, and a connecting member 65 arranged between the adjacent adhesive tapes 61.
- the adhesive tape structure 60 ⁇ / b> A includes a first cover film 73 corresponding to the adhesive tape 61 and a base-side connecting tape 71.
- the adhesive tape 61 has a strip-shaped base film 62 and an adhesive layer 63 provided on the base film 62.
- the adhesive tape 61 in the modified example also includes a non-adhesive region 64 where the adhesive layer 63 is not provided.
- the non-adhesion region 64 is provided at an end portion 62 a located on one end side of the adhesive tape structure 60 ⁇ / b> A among the both end portions 62 a and 62 b in the longitudinal direction L of the base film 62.
- the first cover film 73 is not provided on the non-adhesion region 64 but is provided on the adhesive layer 63.
- the connecting member 65 is composed only of the base material 66, and the adhesive layer 67 is not formed on the base material 66. Further, the cover film 74 is not provided on the connecting member 65.
- the non-adhesive region 64 and the connecting member 65 are exposed.
- the adhesive layer 63, the non-adhesion region 64, and the connecting member 65 are in a state in which it is difficult to touch outside air.
- the adhesive tape structure 60A is pulled out from the housing member 80, the first cover film 73 is peeled off using a suction roller or the like, and the adhesive layer 63 is removed. Exposed. The exposed adhesive layer 63 is pressed by the solar cell element 11 and transferred onto the bus bar electrode 112.
- the adhesive tape container 50 in the modification of the present embodiment is further provided with a first cover film 73 so as to cover the adhesive layer 63 of the adhesive tape 61 and not the non-adhesive region 64.
- a reel is described as an example of the housing member 80 that houses the adhesive tape structure 60, but the housing member 80 is not limited to a reel.
- the adhesive tape structure 60 may be accommodated in a box-shaped accommodation member.
- the adhesive layer 63 is wound and accommodated so that the base film 62 is outside, while the base film 62 is outside.
- the present invention is not limited thereto, and the base film 62 may be wound and housed so that the adhesive layer 63 is on the inner side.
- the cover films 73 and 74 are stored on the adhesive layer 63, but the cover films 73 and 74 are not provided.
- the adhesive layer 63 may be accommodated while being wound while being in contact with the back surface of the base film 62. In this case, a release process may be performed on the back surface of the base film 62.
- a conductive adhesive is used as the material of the adhesive layer 63, but a non-conductive adhesive can also be used.
- the resin adhesive softens at the time of transfer, and the surface of the bus bar electrode 112 and the tab wiring 20 can be directly contacted to be electrically connected. it can.
- the adhesive layer 63 is formed so as to cover the bus bar electrodes 112 one by one.
- the present invention is not limited to this, and a plurality of bus bars (three in this embodiment) are provided. You may form so that the electrode 112 may be covered simultaneously.
- the adhesive bond layer 63 is formed so that it may become the same as the length of the one side of the solar cell element 11, it is not restricted to it, It is shorter than the length of one side. Alternatively, it may be formed on bus bar electrode 112 with a small distance from the edge of solar cell element 11.
- the solar cell element 11 may be any as long as it has a function as a photovoltaic power, and is not limited to the structure of the solar cell element.
- the electrode structure which has the above characteristics showed the aspect currently given to the surface of the solar cell element
- the electrode structure which has the said characteristic is a solar cell element. It may be applied only on the back surface or on both the front and back surfaces.
- bus bar electrode and the finger electrode may not be a straight line but may be a curved line.
- the present invention is not limited to the matrix arrangement.
- positioning, the one-dimensional linear form, or the curve form may be sufficient.
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Abstract
Description
本実施の形態に係る接着テープ収容体を説明する前に、太陽電池モジュールの基本構成、太陽電池素子の構造、および太陽電池モジュールの構造について説明する。
太陽電池モジュールの基本構成の一例について、図1を用いて説明する。
太陽電池モジュール1の主たる構成要素である太陽電池素子11の構造について説明する。
次に、太陽電池モジュール1の具体的構造について説明する。
次に、本実施の形態に係る接着テープ収容体について説明する。接着テープ収容体は、太陽電池モジュール製造用の接着テープ収容体であり、タブ配線20をバスバー電極112に接合するために用いる接着剤層を含んでいる。
次に、本実施の形態に係る太陽電池モジュール1の製造方法について説明する。
ここで、比較例における接着テープ収容体および太陽電池モジュールの製造方法について説明する。
本実施の形態に係る接着テープ収容体50は、帯状のベースフィルム62に接着剤層63が設けられ、ベースフィルム62の長手方向Lに互いに隣り合うように配置された複数の接着テープ61、および、複数の接着テープ61のそれぞれの間に配置される帯状の連結部材65を有する接着テープ構造体60と、接着テープ構造体60の長手方向Lの一端側に接続され、接着テープ構造体60を収容する収容部材80と、を備え、接着テープ61は、ベースフィルム62の長手方向Lの両端部62a、62bのうちの、接着テープ構造体60の一端側に位置する端部62aに、接着剤層63が設けられていない非接着領域64を含む。
次に、本実施の形態に係る接着テープ収容体50の変形例について説明する。
以上、本発明に係る接着テープ収容体50および太陽電池モジュール1について、実施の形態および変形例に基づいて説明したが、本発明は、上記の実施の形態および変形例に限定されるものではない。
11 太陽電池素子
20 タブ配線
50 接着テープ収容体
60、60A 接着テープ構造体
61 接着テープ
62 ベースフィルム
62a、62b ベースフィルムの端部
63 接着剤層
64 非接着領域
65 連結部材
66 基材
67 粘着層
71 ベース側繋ぎテープ
72 カバー側繋ぎテープ
73 第1のカバーフィルム
74 第2のカバーフィルム
80 収容部材
111 フィンガー電極
112 バスバー電極
L 長手方向
d 所定の距離
Claims (10)
- 帯状のベースフィルムに接着剤層が設けられ前記ベースフィルムの長手方向に互いに隣り合うように配置された複数の接着テープ、および、前記複数の接着テープのそれぞれの間に配置される帯状の連結部材を有する接着テープ構造体と、
前記接着テープ構造体の長手方向の一端側に接続され、前記接着テープ構造体を収容する収容部材と、を備え、
前記接着テープは、前記ベースフィルムの長手方向の両端部のうちの、前記接着テープ構造体の前記一端側に位置する端部に、前記接着剤層が設けられていない非接着領域を含む
接着テープ収容体。 - 前記非接着領域の前記長手方向の長さは、前記端部の縁から所定の距離である
請求項1に記載の接着テープ収容体。 - さらに、
前記接着テープの前記ベースフィルム側の表面にて、前記接着テープと前記連結部材とを繋ぐベース側繋ぎテープを有する
請求項1または2に記載の接着テープ収容体。 - さらに、
前記接着テープの前記接着剤層と、前記非接着領域とを覆うように第1のカバーフィルムが設けられている
請求項1~3のいずれか1項に記載の接着テープ収容体。 - 前記連結部材は、帯状の基材と、前記基材上に設けられた粘着層とを含み、
さらに、
前記粘着層を覆うように第2のカバーフィルムが設けられている
請求項4に記載の接着テープ収容体。 - さらに、
前記第1のカバーフィルム側の表面において、前記第1のカバーフィルムと前記第2のカバーフィルムとをそれぞれ繋ぐカバー側繋ぎテープを有する
請求項5に記載の接着テープ収容体。 - さらに、
前記接着テープの前記接着剤層を覆い、前記非接着領域を覆わないように第1のカバーフィルムが設けられている
請求項1~3のいずれか1項に記載の接着テープ収容体。 - 受光面に平行な方向で隣り合う2つの太陽電池素子を準備する工程と、
前記2つの太陽電池素子に、前記太陽電池素子で生成された受光電荷を集電する複数のフィンガー電極を形成する工程と、
前記複数のフィンガー電極のそれぞれと交差する方向に延びるように、前記複数のフィンガー電極を電気的に接続するバスバー電極を形成する工程と、
前記バスバー電極に沿って請求項1~7のいずれか1項に記載された接着テープ収容体の接着テープ構造体を配置し、前記接着テープ構造体の接着剤層を前記バスバー電極上に転写する工程と、
前記バスバー電極上に転写された前記接着剤層上に、前記2つの太陽電池素子を電気的に接続するタブ配線を配置する工程と
を含む太陽電池モジュールの製造方法。 - さらに、
前記接着剤層を前記バスバー電極上に転写する工程と前記タブ配線を配置する工程との間に、転写された前記接着剤層を検査する工程
を含む請求項8に記載の太陽電池モジュールの製造方法。 - 前記接着剤層を検査する工程は、前記太陽電池素子上に所定の長さ以上の前記接着剤層が転写されているか否か、または、余計な異物が接触しているか否かを検査する工程である
請求項9に記載の太陽電池モジュールの製造方法。
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JP2017567998A JP6573180B2 (ja) | 2016-02-16 | 2017-01-20 | 接着テープ収容体および太陽電池モジュールの製造方法 |
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JP7239713B2 (ja) | 2020-01-23 | 2023-03-14 | チェンドゥ イェファン サイエンス アンド テクノロジー カンパニー,リミテッド | 板葺きソーラーモジュールの製造方法及び板葺きソーラーモジュール |
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US10388822B2 (en) | 2019-08-20 |
JP6573180B2 (ja) | 2019-09-11 |
EP3418339B1 (en) | 2020-07-15 |
JPWO2017141621A1 (ja) | 2018-09-06 |
EP3418339A1 (en) | 2018-12-26 |
EP3418339A4 (en) | 2019-01-09 |
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