JP6837539B2 - Manufacturing method of back electrode type solar cell with wiring sheet, solar cell module and back electrode type solar cell with wiring sheet - Google Patents

Manufacturing method of back electrode type solar cell with wiring sheet, solar cell module and back electrode type solar cell with wiring sheet Download PDF

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JP6837539B2
JP6837539B2 JP2019511140A JP2019511140A JP6837539B2 JP 6837539 B2 JP6837539 B2 JP 6837539B2 JP 2019511140 A JP2019511140 A JP 2019511140A JP 2019511140 A JP2019511140 A JP 2019511140A JP 6837539 B2 JP6837539 B2 JP 6837539B2
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伸之 磯野
伸之 磯野
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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
    • H01L31/04—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
    • 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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • 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
    • H01L31/06—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
    • H01L31/068—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 homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
    • 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
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    • 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
    • Y02E10/547—Monocrystalline silicon PV cells

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Description

本発明は、配線シート付き裏面電極型太陽電池セル、太陽電池モジュールおよび配線シート付き裏面電極型太陽電池セルの製造方法に関する。本出願は、２０１７年４月５日に出願した日本特許出願である特願２０１７−０７５４３８号に基づく優先権を主張する。当該日本特許出願に記載された全ての記載内容は、参照によって本明細書に援用される。 The present invention relates to a back electrode type solar cell with a wiring sheet, a solar cell module, and a method for manufacturing a back electrode type solar cell with a wiring sheet. This application claims priority based on Japanese Patent Application No. 2017-075438, which is a Japanese patent application filed on April 5, 2017. All the contents of the Japanese patent application are incorporated herein by reference.

たとえば特許文献１には、裏面電極型太陽電池セルの隣り合うｐ型用電極とｎ型用電極の間のシリコン基板上に絶縁性の固定樹脂を塗布した後にｐ型用電極およびｎ型用電極のそれぞれの上に導電性の半田樹脂を塗布し、裏面電極型太陽電池セル上に配線シートを配置して製造された配線シート付き裏面電極型太陽電池セルが開示されている。 For example, Patent Document 1 describes a p-type electrode and an n-type electrode after applying an insulating fixing resin on a silicon substrate between adjacent p-type electrodes and n-type electrodes of a back electrode type solar cell. A back electrode type solar cell with a wiring sheet manufactured by applying a conductive solder resin on each of the above and arranging a wiring sheet on the back electrode type solar cell is disclosed.

また、特許文献２には、配線シートの隣り合うｐ型用配線とｎ型用配線との間の絶縁性基材上に絶縁性の固定樹脂を塗布した後にｐ型用電極およびｎ型用電極のそれぞれの上に導電性の半田樹脂を塗布し、裏面電極型太陽電池セル上に配線シートを配置して製造された配線シート付き裏面電極型太陽電池セルが開示されている。 Further, in Patent Document 2, after applying an insulating fixing resin on an insulating base material between adjacent p-type wiring and n-type wiring of a wiring sheet, a p-type electrode and an n-type electrode are provided. A back electrode type solar cell with a wiring sheet manufactured by applying a conductive solder resin on each of the above and arranging a wiring sheet on the back electrode type solar cell is disclosed.

特開２０１６−１００４９４号公報Japanese Unexamined Patent Publication No. 2016-100494 特開２０１３−２１４６０３号公報Japanese Unexamined Patent Publication No. 2013-214603

しかしながら、たとえば図１７の模式的拡大平面図に示すように、ｎ電極６上およびｐ電極７上のそれぞれの導電性の半田樹脂等の導電性接着材２１の間に絶縁性の固定樹脂等の絶縁性接着材２２を設置する。このとき、導電性接着材２１が絶縁性接着材２２側に位置ズレして導電性接着材２１と絶縁性接着材２２とが接触すると、たとえば図１８の模式的拡大平面図に示すように、導電性接着材２１が絶縁性接着材２２の上を流動して隣り合う他の極性の電極上にまで広がる事態が発生する。この場合には、隣り合うｎ電極６およびｐ電極７間で導電性接着材２１により短絡が生じてしまうため、このような短絡の発生を抑制することが要望されている。 However, for example, as shown in the schematic enlarged plan view of FIG. 17, an insulating fixing resin or the like is formed between the conductive adhesives 21 such as the conductive solder resin on the n electrode 6 and the p electrode 7. The insulating adhesive 22 is installed. At this time, when the conductive adhesive 21 is displaced toward the insulating adhesive 22 and the conductive adhesive 21 and the insulating adhesive 22 come into contact with each other, for example, as shown in the schematic enlarged plan view of FIG. A situation occurs in which the conductive adhesive 21 flows on the insulating adhesive 22 and spreads on adjacent electrodes of other polarities. In this case, a short circuit occurs due to the conductive adhesive 21 between the adjacent n-electrode 6 and p-electrode 7, and it is desired to suppress the occurrence of such a short circuit.

ここで開示された実施形態によれば、配線シートと裏面電極型太陽電池セルとを備え、配線シートは、絶縁性基材と絶縁性基材上の導電性の配線とを含み、配線はｐ配線とｎ配線とを含み、ｐ配線とｎ配線とは間隔を空けて隣り合って配置されており、裏面電極型太陽電池セルは、基板と基板の一方の面側の電極とを含み、電極はｐ電極とｎ電極とを含み、ｐ電極とｎ電極とは間隔を空けて隣り合って配置されており、ｐ配線およびｎ配線は、それぞれ、ｐ電極およびｎ電極と、導電性接着材を用いて接続されており、配線シートと裏面電極型太陽電池セルとは、絶縁性接着材を用いて接続されており、ｐ配線およびｎ配線は、第１方向に直線状に延在する部分を含み、第１方向と直交する第２方向に間隔を空けて隣り合うｐ電極およびｎ電極の両方に導電性接着材が配置された箇所の間には絶縁性接着材が配置されていない配線シート付き裏面電極型太陽電池セルを提供することができる。 According to the embodiment disclosed herein, a wiring sheet and a back electrode type solar cell are provided, the wiring sheet includes an insulating base material and conductive wiring on the insulating base material, and the wiring is p. The back electrode type solar cell includes a substrate and an electrode on one surface side of the substrate, and includes a wiring and an n wiring, and the p wiring and the n wiring are arranged next to each other with a space between them. Includes a p-electrode and an n-electrode, and the p-electrode and the n-electrode are arranged next to each other at intervals, and the p-wire and the n-wire have the p-electrode and the n-electrode and a conductive adhesive, respectively. The wiring sheet and the back electrode type solar cell are connected by using an insulating adhesive, and the p wiring and the n wiring extend a portion linearly in the first direction. A wiring sheet in which the insulating adhesive is not arranged between the portions where the conductive adhesive is arranged on both the p electrode and the n electrode which are adjacent to each other at intervals in the second direction orthogonal to the first direction. A back electrode type solar cell with a back electrode can be provided.

ここで開示された実施形態によれば、上記の配線シート付き裏面電極型太陽電池セルを備えた太陽電池モジュールを提供することができる。 According to the embodiment disclosed here, it is possible to provide a solar cell module including the above-mentioned back electrode type solar cell with a wiring sheet.

ここで開示された実施形態によれば、配線シートと裏面電極型太陽電池セルとを備えた配線シート付き裏面電極型太陽電池セルを製造する方法であって、配線シートは、絶縁性基材と絶縁性基材上の導電性の配線とを含み、配線はｐ配線とｎ配線とを含み、ｐ配線とｎ配線とは間隔を空けて隣り合って配置されており、裏面電極型太陽電池セルは基板と基板の一方の面側の電極とを含み、電極はｐ電極とｎ電極とを含み、ｐ電極とｎ電極とは間隔を空けて隣り合って配置されており、ｐ配線およびｎ配線はそれぞれｐ電極およびｎ電極と導電性接着材を用いて接続されており、配線シートと裏面電極型太陽電池セルとは絶縁性接着材を用いて接続されており、電極と配線との間に導電性接着材が位置するように導電性接着材を設置する工程と、電極間および配線間に絶縁性接着材が位置するように絶縁性接着材を設置する工程と、裏面電極型太陽電池セルと配線シートとを重ね合わせる工程と、を含み、ｐ配線およびｎ配線は第１方向に直線状に延在する部分を含み、絶縁性接着材を設置する工程は、第１方向と直交する第２方向に間隔を空けて隣り合うｐ電極およびｎ電極の両方に導電性接着材が配置された箇所の間には絶縁性接着材を設置しないように行われる、配線シート付き裏面電極型太陽電池セルの製造方法を提供することができる。 According to the embodiment disclosed here, a method of manufacturing a back electrode type solar cell with a wiring sheet including a wiring sheet and a back electrode type solar cell, wherein the wiring sheet is an insulating base material. The wiring includes the conductive wiring on the insulating base material, the wiring includes the p wiring and the n wiring, and the p wiring and the n wiring are arranged next to each other with a space between them, and the back electrode type solar cell. Includes a substrate and an electrode on one side of the substrate, the electrodes include a p electrode and an n electrode, and the p electrode and the n electrode are arranged next to each other with a space between them, and the p wiring and the n wiring are arranged. Are connected to the p-electrode and n-electrode using a conductive adhesive, respectively, and the wiring sheet and the back electrode type solar cell are connected to each other using an insulating adhesive, and are connected between the electrodes and the wiring. The process of installing the conductive adhesive so that the conductive adhesive is located, the process of installing the insulating adhesive so that the insulating adhesive is located between the electrodes and the wiring, and the back electrode type solar cell The step of superimposing the wiring sheet and the wiring sheet, the p-wire and the n-wire include a portion extending linearly in the first direction, and the step of installing the insulating adhesive is a step orthogonal to the first direction. Back electrode type solar cell with wiring sheet, which is performed so as not to install an insulating adhesive between the places where the conductive adhesive is arranged on both the p electrode and the n electrode adjacent to each other at intervals in two directions. A method for manufacturing a cell can be provided.

ここで開示された実施形態によれば、導電性接着材による隣り合うｎ電極およびｐ電極間での短絡の発生を抑制可能な配線シート付き裏面電極型太陽電池セル、太陽電池モジュールおよび配線シート付き裏面電極型太陽電池セルの製造方法を提供することができる。 According to the embodiment disclosed here, a back electrode type solar cell with a wiring sheet capable of suppressing the occurrence of a short circuit between adjacent n electrodes and p electrodes due to a conductive adhesive, a solar cell module, and a wiring sheet are included. A method for manufacturing a back electrode type solar cell can be provided.

実施形態１の太陽電池モジュールの模式的な断面図である。It is a schematic sectional view of the solar cell module of Embodiment 1. FIG. 実施形態１の太陽電池モジュールに用いられる配線シートの模式的な平面図である。It is a schematic plan view of the wiring sheet used for the solar cell module of Embodiment 1. 実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールの製造方法の一例について図解する模式的な断面図である。FIG. 5 is a schematic cross-sectional view illustrating an example of a method for manufacturing a back electrode type solar cell with a wiring sheet and a solar cell module according to the first embodiment. 実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールの製造方法の一例について図解する模式的な断面図である。FIG. 5 is a schematic cross-sectional view illustrating an example of a method for manufacturing a back electrode type solar cell with a wiring sheet and a solar cell module according to the first embodiment. 実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールの製造方法の一例について図解する模式的な断面図である。FIG. 5 is a schematic cross-sectional view illustrating an example of a method for manufacturing a back electrode type solar cell with a wiring sheet and a solar cell module according to the first embodiment. 実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。Schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module of the first embodiment. Is. 実施形態１における導電性接着材と絶縁性接着材との位置関係の一例を図解する模式的な拡大平面図である。FIG. 5 is a schematic enlarged plan view illustrating an example of the positional relationship between the conductive adhesive and the insulating adhesive in the first embodiment. ｎ電極およびｐ電極の変形例の模式的な平面図である。It is a schematic plan view of the modification of the n electrode and the p electrode. 導電性接着材および絶縁性接着材の表面形状の変形例の模式的な拡大平面図である。It is a schematic enlarged plan view of the modification of the surface shape of a conductive adhesive and an insulating adhesive. 実施形態２の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。Schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the second embodiment. Is. 実施形態３の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。Schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the third embodiment. Is. 実施形態４の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。Schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module of the fourth embodiment. Is. 実施形態５の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。A schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the fifth embodiment. Is. 実施形態６の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。A schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the sixth embodiment. Is. 実施形態７の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。A schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the seventh embodiment. Is. 実施形態８の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極、ｐ電極、ｎ配線、ｐ配線、導電性接着材、および絶縁性接着材の位置関係を示す模式的な平面図である。A schematic plan view showing the positional relationship between the n-electrode, p-electrode, n-wiring, p-wiring, conductive adhesive, and insulating adhesive of the back electrode type solar cell with a wiring sheet and the solar cell module according to the eighth embodiment. Is. ｎ電極上およびｐ電極上のそれぞれの導電性接着材の間に絶縁性接着材を設置した構成の一例を図解する模式的な拡大平面図である。FIG. 5 is a schematic enlarged plan view illustrating an example of a configuration in which an insulating adhesive is installed between the conductive adhesives on the n-electrode and the p-electrode. 導電性接着材が絶縁性接着材の上を流動して隣り合う他の極性の電極上にまで広がった状態の一例を図解する模式的な拡大平面図である。FIG. 5 is a schematic enlarged plan view illustrating an example of a state in which a conductive adhesive flows on an insulating adhesive and spreads on adjacent electrodes of other polarities.

以下、実施形態について説明する。なお、実施形態の説明に用いられる図面において、同一の参照符号は、同一部分または相当部分を表わすものとする。 Hereinafter, embodiments will be described. In addition, in the drawing used for the description of embodiment, the same reference numeral shall represent the same part or the corresponding part.

［実施形態１］
図１に、実施形態１の太陽電池モジュールの模式的な断面図を示す。図１に示す実施形態１の太陽電池モジュールは、裏面電極型太陽電池セル８と配線シート１０とを重ね合わせた配線シート付き裏面電極型太陽電池セルを、受光面側の透明基板１７と裏面側の裏面部材１９との間の封止樹脂１８中に封止することにより構成される。透明基板１７としてはたとえばガラス等を用いることができる。封止樹脂１８としてはたとえばＥＶＡ（エチレンビニルアセテート）等を用いることができる。裏面部材１９としてはたとえばＰＥＴ（ポリエステル）フィルム等の絶縁性の樹脂フィルムや、それらフィルムの一方の面にアルミニウムが蒸着された絶縁シート、ガラス等を用いることができる。[Embodiment 1]
FIG. 1 shows a schematic cross-sectional view of the solar cell module of the first embodiment. The solar cell module of the first embodiment shown in FIG. 1 is a back electrode type solar cell with a wiring sheet in which a back electrode type solar cell 8 and a wiring sheet 10 are superposed, and a transparent substrate 17 on the light receiving surface side and a back surface side. It is configured by sealing in a sealing resin 18 between the back surface member 19 and the back surface member 19. As the transparent substrate 17, for example, glass or the like can be used. As the sealing resin 18, for example, EVA (ethylene vinyl acetate) or the like can be used. As the back surface member 19, for example, an insulating resin film such as a PET (polyester) film, an insulating sheet in which aluminum is vapor-deposited on one surface of the film, glass, or the like can be used.

裏面電極型太陽電池セル８は、凹凸形状を有するｎ型またはｐ型の多結晶シリコンまたは単結晶シリコン等からなる半導体基板１の受光面上に誘電体膜５が形成され、半導体基板１の裏面上に誘電体膜４が形成された構成を有している。誘電体膜４および誘電体膜５としては、たとえば、窒化シリコン膜、酸化シリコン膜、または窒化シリコン膜と酸化シリコン膜との積層体等を用いることができる。 In the back electrode type solar cell 8, the dielectric film 5 is formed on the light receiving surface of the semiconductor substrate 1 made of n-type or p-type polycrystalline silicon or single crystal silicon having an uneven shape, and the back surface of the semiconductor substrate 1 is formed. It has a structure in which a dielectric film 4 is formed on the top. As the dielectric film 4 and the dielectric film 5, for example, a silicon nitride film, a silicon oxide film, or a laminate of a silicon nitride film and a silicon oxide film can be used.

半導体基板１の内部の裏面には、リンなどのｎ型不純物を含有するｎ型不純物含有領域２と、ホウ素などのｐ型不純物を含有するｐ型不純物含有領域３とが隣り合って間隔を空けて配置されている。ｎ型不純物含有領域２上にはｎ電極６が配置されており、ｐ型不純物含有領域３上にはｐ電極７が配置されている。 On the back surface of the inside of the semiconductor substrate 1, an n-type impurity-containing region 2 containing an n-type impurity such as phosphorus and a p-type impurity-containing region 3 containing a p-type impurity such as boron are adjacent to each other and spaced apart from each other. Are arranged. The n electrode 6 is arranged on the n-type impurity-containing region 2, and the p-electrode 7 is arranged on the p-type impurity-containing region 3.

図２に、実施形態１の太陽電池モジュールに用いられる配線シート１０の模式的な平面図を示す。図２に示すように、配線シート１０は、絶縁性基材１１と、絶縁性基材１１上の導電性の配線１６とを含み、配線１６はｎ配線１２とｐ配線１３とを含んでいる。 FIG. 2 shows a schematic plan view of the wiring sheet 10 used in the solar cell module of the first embodiment. As shown in FIG. 2, the wiring sheet 10 includes an insulating base material 11 and a conductive wiring 16 on the insulating base material 11, and the wiring 16 includes n wiring 12 and p wiring 13. ..

ｎ配線１２およびｐ配線１３のそれぞれは１つの方向に沿って直線状に延在しており、ｎ配線１２とｐ配線１３とは間隔を空けて隣り合って配置されている。ｎ配線１２のそれぞれの一端とｐ配線１３のそれぞれの一端とは接続用配線１４に接続されている。また、図２に示す絶縁性基材１１の左上端には取り出し用ｎ配線１２ａが配置されており、右上端には取り出し用ｐ配線１３ａが配置されている。 Each of the n-wiring 12 and the p-wiring 13 extends linearly along one direction, and the n-wiring 12 and the p-wiring 13 are arranged adjacent to each other with a gap. Each end of the n-wiring 12 and each end of the p-wiring 13 are connected to the connection wiring 14. Further, the take-out n wiring 12a is arranged at the upper left end of the insulating base material 11 shown in FIG. 2, and the take-out p-wiring 13a is arranged at the upper right end.

また、図１に示すように、ｎ電極６とｎ配線１２とは導電性接着材２１を用いて接続されており、ｐ電極７とｐ配線１３とも導電性接着材２１を用いて接続されている。裏面電極型太陽電池セル８と配線シート１０とは、絶縁性接着材２２を用いて接続されている。導電性接着材２１としては、たとえば導電性の半田樹脂等を用いることができる。絶縁性接着材２２としては、たとえば絶縁性の熱硬化性樹脂等を用いることができる。また、絶縁性の熱硬化性樹脂としては、Ｂステージ化可能な樹脂を用いることもできる。Ｂステージ化可能な樹脂とは、液体状態の未硬化の固定樹脂を加熱すると粘度が上昇して硬化状態（第１の硬化状態）となり、続けて加熱していくと粘度が一旦低下して軟化し、その後に再度粘度が上昇して硬化状態（第２の硬化状態）となる樹脂のことである。 Further, as shown in FIG. 1, the n electrode 6 and the n wiring 12 are connected by using the conductive adhesive material 21, and the p electrode 7 and the p wiring 13 are also connected by using the conductive adhesive material 21. There is. The back electrode type solar cell 8 and the wiring sheet 10 are connected by using an insulating adhesive 22. As the conductive adhesive material 21, for example, a conductive solder resin or the like can be used. As the insulating adhesive material 22, for example, an insulating thermosetting resin or the like can be used. Further, as the insulating thermosetting resin, a resin that can be B-staged can also be used. A resin that can be B-staged means that when a liquid uncured fixed resin is heated, its viscosity increases to a cured state (first cured state), and when it is continuously heated, its viscosity once decreases and softens. After that, the viscosity of the resin increases again to reach a cured state (second cured state).

以下、図３〜図５の模式的断面図を参照して、実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールの製造方法の一例について説明する。まず、図３に示すように、裏面電極型太陽電池セル８の裏面側で直線状に延在するｎ電極６およびｐ電極７のそれぞれの上に導電性接着材２１を設置する。 Hereinafter, an example of a method for manufacturing a back electrode type solar cell with a wiring sheet and a solar cell module according to the first embodiment will be described with reference to the schematic cross-sectional views of FIGS. 3 to 5. First, as shown in FIG. 3, the conductive adhesive 21 is installed on each of the n electrode 6 and the p electrode 7 extending linearly on the back surface side of the back electrode type solar cell 8.

次に、図４に示すように、隣り合うｎ電極６とｐ電極７との間の半導体基板１上の領域に絶縁性接着材２２を設置する。絶縁性接着材２２の設置箇所の詳細については後述する。 Next, as shown in FIG. 4, the insulating adhesive 22 is installed in the region on the semiconductor substrate 1 between the adjacent n-electrode 6 and p-electrode 7. Details of the installation location of the insulating adhesive 22 will be described later.

次に、図５に示すように、裏面電極型太陽電池セル８と配線シート１０とを重ね合わせる。裏面電極型太陽電池セル８と配線シート１０との重ね合わせは、裏面電極型太陽電池セル８のｎ電極６およびｐ電極７が、それぞれ、配線シート１０のｎ配線１２およびｐ配線１３と導電性接着材２１を用いて接続されるようにして行なわれる。そして、重ね合わせた裏面電極型太陽電池セル８と配線シート１０とを加圧しながら加熱および／または光を照射することによって、配線シート付き裏面電極型太陽電池セルを作製することができる。 Next, as shown in FIG. 5, the back electrode type solar cell 8 and the wiring sheet 10 are overlapped with each other. In the superposition of the back electrode type solar cell 8 and the wiring sheet 10, the n electrode 6 and the p electrode 7 of the back electrode type solar cell 8 are conductive with the n wiring 12 and the p wiring 13 of the wiring sheet 10, respectively. It is carried out so as to be connected by using the adhesive material 21. Then, the back electrode type solar cell with a wiring sheet can be manufactured by heating and / or irradiating light while pressurizing the overlapped back electrode type solar cell 8 and the wiring sheet 10.

その後、受光面側から、透明基板１７、封止樹脂１８、配線シート付き裏面電極型太陽電池セル、封止樹脂１８および裏面部材１９の順となるようにこれらの部材を配置して加熱および加圧を行う。これにより、受光面側の透明基板１７と裏面側の裏面部材１９との間の封止樹脂１８中に配線シート付き裏面電極型太陽電池セルを封止することによって図１に示す構成の太陽電池モジュールを作製することができる。 After that, these members are arranged in this order from the light receiving surface side, the transparent substrate 17, the sealing resin 18, the back electrode type solar cell with the wiring sheet, the sealing resin 18, and the back surface member 19, and heated and applied. Apply pressure. As a result, the solar cell having the configuration shown in FIG. 1 is formed by sealing the back electrode type solar cell with a wiring sheet in the sealing resin 18 between the transparent substrate 17 on the light receiving surface side and the back surface member 19 on the back surface side. Modules can be made.

なお、上記においては、導電性接着材２１および絶縁性接着材２２のいずれもを裏面電極型太陽電池セル１０側に設置する場合について説明したが、導電性接着材２１および絶縁性接着材２２の少なくとも一方を配線シート１０側に設置してもよい。 In the above description, the case where both the conductive adhesive 21 and the insulating adhesive 22 are installed on the back electrode type solar cell 10 side has been described, but the conductive adhesive 21 and the insulating adhesive 22 have been described. At least one of them may be installed on the wiring sheet 10 side.

図６に、実施形態１の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。 FIG. 6 shows the back electrode type solar cell with a wiring sheet of the first embodiment and the n-electrode 6, p-electrode 7, n-wiring 12, p-wiring 13, conductive adhesive 21 and insulating adhesive 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

図６に示すように、ｎ電極６およびｐ電極７はそれぞれ第１方向３１に直線状に延在しており、ｎ電極６とｐ電極７とは第２方向３２に交互に１本ずつ間隔を空けて配置されている。また、ｎ配線１２およびｐ配線１３もそれぞれ第１方向３１に直線状に延在しており、ｎ配線１２とｐ配線１３とは第２方向３２に交互に１本ずつ間隔を空けて配置されている。ｎ電極６の表面領域内にｎ配線１２が位置しており、ｐ電極７の表面領域内にｐ配線１３が位置している。なお、実施形態１において、第１方向３１と第２方向３２とは直交している。 As shown in FIG. 6, the n-electrode 6 and the p-electrode 7 extend linearly in the first direction 31, respectively, and the n-electrode 6 and the p-electrode 7 are alternately spaced one by one in the second direction 32. It is arranged with a space. Further, the n-wiring 12 and the p-wiring 13 also extend linearly in the first direction 31, and the n-wiring 12 and the p-wiring 13 are alternately arranged in the second direction 32 with an interval of one. ing. The n wiring 12 is located in the surface region of the n electrode 6, and the p wiring 13 is located in the surface region of the p electrode 7. In the first embodiment, the first direction 31 and the second direction 32 are orthogonal to each other.

第２方向３２に隣り合って配置されたｎ電極６上およびｐ電極７上にはそれぞれ導電性接着材２１が配置されており、第２方向３２に沿って複数の導電性接着材２１が配置された導電接着列４１が構成されている。また、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にはそれぞれ絶縁性接着材２２が配置されており、第２方向３２に沿って複数の絶縁性接着材２２が配置された絶縁接着列４２が構成されている。さらに、導電接着列４１と絶縁接着列４２とが第１方向３１に間隔を空けて交互に１つずつ配置されている。なお、図６では、導電接着列４１に含まれる複数の導電性接着材２１および絶縁接着列４２に含まれる複数の絶縁性接着材２２は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。また、図６において絶縁接着列４２を構成する絶縁性接着材２２は隣接するｎ電極６とｐ電極７間にポイント状に１つずつ配置されているが、たとえば第２の方向３２に沿って複数の電極をまたいだライン形状のものが複数並んでいてもよいし、第２の方向３２に沿って一体となった直線形状になっていてもよい。その形状は適宜選択できるものであって前述した形状に限定されるものではない。 Conductive adhesives 21 are arranged on the n-electrodes 6 and p-electrodes 7 arranged adjacent to each other in the second direction 32, and a plurality of conductive adhesives 21 are arranged along the second direction 32. The conductive adhesive row 41 is configured. Further, an insulating adhesive 22 is arranged between the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, and a plurality of insulating adhesives are arranged along the second direction 32. An insulating adhesive row 42 in which 22 is arranged is configured. Further, the conductive adhesive row 41 and the insulating adhesive row 42 are alternately arranged one by one in the first direction 31 at intervals. In FIG. 6, the plurality of conductive adhesives 21 included in the conductive adhesive row 41 and the plurality of insulating adhesives 22 included in the insulating adhesive row 42 are arranged on a straight line along the second direction 32. However, these adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 and the plurality of insulating adhesives 22 are included in a certain range along the first direction 31. It suffices to form a row along the two directions 32. Further, in FIG. 6, the insulating adhesives 22 constituting the insulating adhesive row 42 are arranged one by one in a point shape between the adjacent n electrode 6 and the p electrode 7, for example, along the second direction 32. A plurality of line-shaped electrodes straddling the plurality of electrodes may be lined up, or may have a linear shape integrated along the second direction 32. The shape can be appropriately selected and is not limited to the above-mentioned shape.

実施形態１においては、たとえば図７の模式的拡大平面図に示すように、第１方向３１と直交する第２方向３２に間隔を空けて隣り合うｎ電極６およびｐ電極７の両方に導電性接着材２１が配置された箇所の間には絶縁性接着材２２が配置されていない。したがって、導電性接着材２１が第２方向３２に位置がズレたとしても絶縁性接着材２２とは接触しないため、導電性接着材２１による隣り合うｎ電極６およびｐ電極７またはｎ配線１２およびｐ配線１３の間での短絡の発生を抑制することができる。 In the first embodiment, for example, as shown in the schematic enlarged plan view of FIG. 7, the n electrode 6 and the p electrode 7 adjacent to each other at intervals in the second direction 32 orthogonal to the first direction 31 are conductive. The insulating adhesive 22 is not arranged between the places where the adhesive 21 is arranged. Therefore, even if the conductive adhesive 21 is displaced in the second direction 32, it does not come into contact with the insulating adhesive 22, so that the adjacent n-electrode 6 and p-electrode 7 or n-wiring 12 by the conductive adhesive 21 and The occurrence of a short circuit between the p-wiring 13 can be suppressed.

なお、実施形態１においては、ｎ電極６およびｐ電極７のそれぞれが第１方向３１に沿った１本の直線状である場合について説明したが、第１方向３１に沿って直線状に延在する部分を含んでいれば、たとえば図８の模式的平面図に示すようにアイランド状であってもよい。また、電極自体には直線状に延在する部分が含まれていなくてもよく、第１方向３１に沿った直線上にポイント状の電極が複数並んだ形態であってもよい。 In the first embodiment, the case where each of the n electrode 6 and the p electrode 7 is a straight line along the first direction 31 has been described, but it extends linearly along the first direction 31. As long as it includes a portion to be formed, it may be island-shaped, for example, as shown in the schematic plan view of FIG. Further, the electrodes themselves may not include a linearly extending portion, and a plurality of point-shaped electrodes may be arranged on a straight line along the first direction 31.

また、実施形態１においては、導電性接着材２１および絶縁性接着材２２の表面形状が共に円形状である場合について説明したが、それら接着材の形状は任意に選択できるものであって、楕円形状であってもよく、たとえば図９の模式的拡大平面図に示すような矩形状であってもよい。 Further, in the first embodiment, the case where the surface shapes of the conductive adhesive material 21 and the insulating adhesive material 22 are both circular has been described, but the shapes of the adhesive materials can be arbitrarily selected and are elliptical. It may have a shape, for example, a rectangular shape as shown in the schematic enlarged plan view of FIG.

［実施形態２］
図１０に、実施形態２の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 2]
FIG. 10 shows the back electrode type solar cell with a wiring sheet of the second embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21 and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態２の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２に隣り合って配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１が配置され、第２方向３２に沿って複数の導電性接着材２１が配置された導電接着列４１が構成されている。また、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２が配置され、第２方向３２に沿って複数の絶縁性接着材２２が配置された絶縁接着列４２が構成されている。２つの絶縁接着列４２と、それら絶縁接着列４２の間に絶縁接着列４２とは間隔を空けて配置された１つの導電接着列４１とからなる列群４３が、第１方向３１に沿って間隔を空けて複数配置されている。これによって、実施形態１と比較して実施形態２では導電性接着材２１の使用量を低減しつつ、導電性接着材２１による電極間または配線間の短絡の発生を更に抑制することができる。なお、図１０では、導電接着列４１に含まれる複数の導電性接着材２１および絶縁接着列４２に含まれる複数の絶縁性接着材２２は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the second embodiment are characterized by the following points. Conductive adhesives 21 are arranged on the n-electrodes 6 and p-electrodes 7 arranged adjacent to each other in the second direction 32, and a plurality of conductive adhesives 21 are arranged along the second direction 32. Adhesive rows 41 are configured. Further, an insulating adhesive 22 is arranged between the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, and a plurality of insulating adhesives 22 are arranged along the second direction 32. The insulating and adhesive row 42 is configured. A row group 43 composed of two insulating bonding rows 42 and one conductive bonding row 41 arranged between the insulating bonding rows 42 at a distance from the insulating bonding row 42 is formed along the first direction 31. Multiple pieces are arranged at intervals. As a result, in the second embodiment as compared with the first embodiment, the amount of the conductive adhesive 21 used can be reduced, and the occurrence of a short circuit between the electrodes or the wiring due to the conductive adhesive 21 can be further suppressed. In FIG. 10, the plurality of conductive adhesives 21 included in the conductive adhesive row 41 and the plurality of insulating adhesives 22 included in the insulating adhesive row 42 are arranged on a straight line along the second direction 32. However, these adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 and the plurality of insulating adhesives 22 are included in a certain range along the first direction 31. It suffices to form a row along the two directions 32.

実施形態２の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２に隣り合って配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１からなる導電接着列４１を形成する工程と、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２を設置して第２方向３２に沿った複数の絶縁性接着材２２からなる絶縁接着列４２を導電接着列４１と間隔を空けかつ導電接着列４１を挟んで２つ形成する工程とを含む方法により製造することができる。 In the back electrode type solar cell with a wiring sheet and the solar cell module of the second embodiment, for example, the conductive adhesive 21 is installed on the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, respectively. Then, between the step of forming the conductive adhesive row 41 composed of the plurality of conductive adhesive materials 21 along the second direction 32 and the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32. Insulating adhesive 22 is installed respectively, and two insulating adhesive rows 42 composed of a plurality of insulating adhesives 22 along the second direction 32 are formed at intervals from the conductive adhesive rows 41 and sandwiching the conductive adhesive rows 41. It can be produced by a method including the above-mentioned steps.

実施形態２における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the second embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態３］
図１１に、実施形態３の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 3]
FIG. 11 shows the back electrode type solar cell with a wiring sheet of the third embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21 and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態３の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２に隣り合って配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１が配置され、第２方向３２に沿って複数の導電性接着材２１が配置された導電接着列４１が構成されている。また、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２が配置され、第２方向３２に沿って複数の絶縁性接着材２２が配置された絶縁接着列４２が構成されている。２つの導電接着列４１と、それら導電接着列４１の間に導電接着列４１とは間隔を空けて配置された１つの絶縁接着列４２とからなる列群４４が第１方向３１に沿って間隔を空けて複数配置されている。これによって、実施形態１と比較して実施形態３では絶縁性接着材２２の使用量を低減しつつ、導電性接着材２１が絶縁性接着材２２に接触することによる電極間または配線間の短絡の発生を更に抑制することができる。なお、図１１では、導電接着列４１に含まれる複数の導電性接着材２１および絶縁接着列４２に含まれる複数の絶縁性接着材２２は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the third embodiment are characterized by the following points. Conductive adhesives 21 are arranged on the n-electrodes 6 and p-electrodes 7 arranged adjacent to each other in the second direction 32, and a plurality of conductive adhesives 21 are arranged along the second direction 32. Adhesive rows 41 are configured. Further, an insulating adhesive 22 is arranged between the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, and a plurality of insulating adhesives 22 are arranged along the second direction 32. The insulating and adhesive row 42 is configured. A row group 44 composed of two conductive adhesive rows 41 and one insulating adhesive row 42 arranged at a distance from the conductive adhesive row 41 between the conductive adhesive rows 41 is spaced along the first direction 31. Multiple are arranged with a space. As a result, in the third embodiment as compared with the first embodiment, the amount of the insulating adhesive 22 used is reduced, and the conductive adhesive 21 comes into contact with the insulating adhesive 22 to cause a short circuit between the electrodes or wiring. Can be further suppressed. In FIG. 11, the plurality of conductive adhesives 21 included in the conductive adhesive row 41 and the plurality of insulating adhesives 22 included in the insulating adhesive row 42 are arranged on a straight line along the second direction 32. However, these adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 and the plurality of insulating adhesives 22 are included in a certain range along the first direction 31. It suffices to form a row along the two directions 32.

実施形態３の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２に隣り合って配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１からなる導電接着列４１を形成する工程と、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２を設置して第２方向３２に沿った複数の絶縁性接着材２２の絶縁接着列４２を導電接着列４１と間隔を空けかつ２つの導電接着列４１の間に形成する工程と、を含む方法により製造することができる。 In the back electrode type solar cell with a wiring sheet and the solar cell module of the third embodiment, for example, the conductive adhesive 21 is installed on the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, respectively. Then, between the step of forming the conductive adhesive row 41 composed of the plurality of conductive adhesive materials 21 along the second direction 32 and the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32. Each of the insulating adhesives 22 is installed, and the insulating adhesive rows 42 of the plurality of insulating adhesives 22 along the second direction 32 are formed at intervals from the conductive adhesive rows 41 and between the two conductive adhesive rows 41. It can be produced by a method including a step.

実施形態３における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the third embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態４］
図１２に、実施形態４の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 4]
FIG. 12 shows the back electrode type solar cell with a wiring sheet of the fourth embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21 and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態４の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２においてｐ電極７上には導電性接着材２１が配置されることなくｎ電極６上には複数の導電性接着材２１が第２方向３２に沿って配置された第１の導電接着列５１が構成されている。また、第２方向３２においてｎ電極６上には導電性接着材２１が配置されることなくｐ電極７上には複数の導電性接着材２１が第２方向３２に沿って配置された第２の導電接着列５２が構成されている。そして、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間に絶縁性接着材２２が配置されて第２方向３２に沿って複数の絶縁性接着材２２が配置されてなる絶縁接着列４２が構成されている。第１の導電接着列５１と第２の導電接着列５２とが第１方向３１に沿って間隔を空けて交互に１つずつ配置されている。第１の導電接着列５１と第２の導電接着列５２との間に絶縁接着列４２が配置されている。これによって、実施形態１と比較して実施形態４では導電性接着材２１の使用量を大きく低減しつつ、導電性接着材２１による電極間または配線間の短絡の発生を抑制することができる。なお、図１２では、第１の導電接着列５１および第２の導電接着列５２に含まれる複数の導電性接着材２１や、絶縁接着列４２に含まれる複数の絶縁性接着材２２は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the fourth embodiment are characterized by the following points. In the second direction 32, the conductive adhesive 21 is not arranged on the p electrode 7, and a plurality of conductive adhesives 21 are arranged on the n electrode 6 along the second direction 32. An adhesive row 51 is configured. Further, in the second direction 32, a plurality of conductive adhesives 21 are arranged along the second direction 32 on the p electrode 7 without arranging the conductive adhesive 21 on the n electrode 6. The conductive adhesive row 52 of the above is configured. Then, the insulating adhesive 22 is arranged between the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, and a plurality of insulating adhesives 22 are arranged along the second direction 32. An insulating adhesive row 42 is configured. The first conductive adhesive row 51 and the second conductive adhesive row 52 are alternately arranged one by one at intervals along the first direction 31. An insulating adhesive row 42 is arranged between the first conductive adhesive row 51 and the second conductive adhesive row 52. As a result, in the fourth embodiment as compared with the first embodiment, the amount of the conductive adhesive 21 used can be significantly reduced, and the occurrence of a short circuit between the electrodes or the wiring due to the conductive adhesive 21 can be suppressed. In FIG. 12, the plurality of conductive adhesives 21 included in the first conductive adhesive row 51 and the second conductive adhesive row 52 and the plurality of insulating adhesives 22 included in the insulating adhesive row 42 are second. Although they are arranged on a straight line along the direction 32, these adhesives do not have to be arranged on a straight line, and a plurality of conductive adhesives 21 and a plurality of insulating adhesives 22 are arranged in the first direction 31. It suffices to form a row along the second direction 32 so as to be included in a certain range along the line.

実施形態４の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２においてｐ電極７上に導電性接着材２１を設置することなくｎ電極６上に複数の導電性接着材２１を第２方向３２に沿って設置して第１の導電接着列５１を形成する工程と、第２方向３２においてｎ電極６上に導電性接着材２１を設置することなくｐ電極７上に複数の導電性接着材２１を第２方向３２に沿って設置して第２の導電接着列５２を形成する工程と、第１の導電接着列５１および第２の導電接着列５２の間に、それら導電接着列と第１方向３１に沿って間隔を空け、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間で、第２方向３２に沿って複数の絶縁性接着材２２を設置して絶縁接着列４２を形成する工程と、を含む方法により製造することができる。なお、第１の導電接着列５１と第２の導電接着列５２は上記のように個別の工程で形成することもできるが、単一の工程で同時に形成すればプロセスタイムを短縮できるのでより好ましい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the fourth embodiment have, for example, a plurality of conductive materials on the n electrode 6 in the second direction 32 without installing the conductive adhesive material 21 on the p electrode 7. The step of installing the adhesive material 21 along the second direction 32 to form the first conductive adhesive row 51, and the p electrode 7 without installing the conductive adhesive material 21 on the n electrode 6 in the second direction 32. Between the step of installing a plurality of conductive adhesives 21 on the top along the second direction 32 to form the second conductive adhesive row 52 and the first conductive adhesive row 51 and the second conductive adhesive row 52. A plurality of n-electrodes 6 and p-electrodes 7 arranged adjacent to each other in the second direction 32 at intervals along the first direction 31 from the conductive adhesive rows. It can be manufactured by a method including a step of installing an insulating adhesive material 22 to form an insulating adhesive row 42. The first conductive adhesive row 51 and the second conductive adhesive row 52 can be formed in individual steps as described above, but it is more preferable to form the first conductive adhesive row 51 and the second conductive adhesive row 52 in a single step at the same time because the process time can be shortened. ..

実施形態４における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the fourth embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態５］
図１３に、実施形態５の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 5]
FIG. 13 shows the back electrode type solar cell with a wiring sheet of the fifth embodiment and the n-electrode 6, p-electrode 7, n-wiring 12, p-wiring 13, conductive adhesive 21 and insulating adhesive 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態５の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２に配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１が配置されて第２方向３２に沿った複数の導電性接着材２１がなす導電接着列４１が構成されている。また、第２方向３２において隣り合うｎ電極６とｐ電極７との間に絶縁性接着材２２が配置されている箇所と絶縁性接着材２２が配置されていない箇所とが１つずつ交互に設けられて第２方向３２に沿った複数の絶縁性接着材２２がなす第１の絶縁接着列６１が構成されている。そして、第１の絶縁接着列６１とは絶縁性接着材２２が配置されている箇所と絶縁性接着材２２が配置されていない箇所とが入れ替わった第２方向３２に沿った複数の絶縁性接着材２２がなす第２の絶縁接着列６２が第１の絶縁接着列６１とは別に構成されている。第１の絶縁接着列６１と第２の絶縁接着列６２とが第１方向３１に間隔を空けて交互に１つずつ配置されている。そして、第１の絶縁接着列６１と第２の絶縁接着列６２との間に導電接着列４１が配置されている。これによって、実施形態１と比較して実施形態５では絶縁性接着材２２の使用量を大きく低減しつつ、導電性接着材２１と絶縁性接着材２２が接触することに起因する電極間または配線間の短絡の発生を抑制することができる。なお、図１３では、第１の絶縁接着列６１および第２の絶縁接着列６２に含まれる複数の絶縁性接着材２２や、導電接着列４１に含まれる複数の導電性接着材２１は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the fifth embodiment are characterized by the following points. Conductive adhesives 21 are arranged on the n-electrodes 6 and p-electrodes 7 arranged in the second direction 32, respectively, and a conductive adhesive row 41 formed by a plurality of conductive adhesives 21 along the second direction 32 is formed. Has been done. Further, in the second direction 32, the place where the insulating adhesive 22 is arranged between the adjacent n electrode 6 and the p electrode 7 and the place where the insulating adhesive 22 is not arranged are alternately arranged one by one. A first insulating adhesive row 61 is provided and formed by a plurality of insulating adhesives 22 along the second direction 32. Then, with the first insulating adhesive row 61, a plurality of insulating adhesives along the second direction 32 in which the portion where the insulating adhesive 22 is arranged and the portion where the insulating adhesive 22 is not arranged are exchanged are exchanged. The second insulating adhesive row 62 formed by the material 22 is configured separately from the first insulating adhesive row 61. The first insulating adhesive row 61 and the second insulating adhesive row 62 are alternately arranged one by one in the first direction 31 at intervals. Then, the conductive adhesive row 41 is arranged between the first insulating adhesive row 61 and the second insulating adhesive row 62. As a result, in the fifth embodiment as compared with the first embodiment, the amount of the insulating adhesive 22 used is greatly reduced, and the electrodes or wiring caused by the contact between the conductive adhesive 21 and the insulating adhesive 22. It is possible to suppress the occurrence of a short circuit between them. In FIG. 13, the plurality of insulating adhesives 22 included in the first insulating adhesive row 61 and the second insulating adhesive row 62 and the plurality of conductive adhesives 21 included in the conductive adhesive row 41 are second. Although they are arranged on a straight line along the direction 32, these adhesives do not have to be arranged on a straight line, and a plurality of conductive adhesives 21 and a plurality of insulating adhesives 22 are arranged in the first direction 31. It suffices to form a row along the second direction 32 so as to be included in a certain range along the line.

実施形態５の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２に配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１を設置して第２方向３２に沿って複数の導電性接着材２１がなす導電接着列４１を形成する工程と、第２方向３２において隣り合うｎ電極６とｐ電極７との間に絶縁性接着材２２が配置されている箇所と絶縁性接着材２２が配置されていない箇所とを１つずつ交互に設けて第２方向３２に沿って複数の絶縁性接着材２２がなす第１の絶縁接着列６１を形成する工程と、第１の絶縁接着列６１とは第１方向３１に間隔を空け、かつ導電接着列４１を第１の絶縁接着列６１と第１方向３１で挟むようにして、第１の絶縁接着列６１とは絶縁性接着材２２が配置されている箇所と絶縁性接着材２２が配置されていない箇所とが入れ替わった複数の絶縁性接着材２２がなす第２の絶縁接着列６２を形成する工程と、を含む方法により製造することができる。なお、第１の絶縁接着列６１と第２の絶縁接着列６２は上記のように個別の工程で形成することもできるが、単一の工程で同時に形成すればプロセスタイムを短縮できるのでより好ましい。 In the back electrode type solar cell with a wiring sheet and the solar cell module of the fifth embodiment, for example, the conductive adhesive 21 is installed on the n electrode 6 and the p electrode 7 arranged in the second direction 32, respectively. The step of forming the conductive adhesive row 41 formed by the plurality of conductive adhesives 21 along the two directions 32 and the insulating adhesive 22 are arranged between the adjacent n electrodes 6 and p electrodes 7 in the second direction 32. A first insulating adhesive row 61 formed by a plurality of insulating adhesives 22 is formed along a second direction 32 by alternately providing a portion where the insulating adhesive 22 is provided and a portion where the insulating adhesive 22 is not arranged. The first insulating bonding row is spaced from the first insulating bonding row 61 in the first direction 31 and the conductive bonding row 41 is sandwiched between the first insulating bonding row 61 and the first insulating bonding row 31. 61 is a step of forming a second insulating adhesive row 62 formed by a plurality of insulating adhesives 22 in which a portion where the insulating adhesive 22 is arranged and a portion where the insulating adhesive 22 is not arranged are exchanged. And can be produced by a method including. The first insulating bonding row 61 and the second insulating bonding row 62 can be formed by individual steps as described above, but it is more preferable to form the first insulating bonding row 61 and the second insulating bonding row 62 at the same time in a single step because the process time can be shortened. ..

実施形態５における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the fifth embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態６］
図１４に、実施形態６の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 6]
FIG. 14 shows the back electrode type solar cell with a wiring sheet of the sixth embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21 and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態６の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２に配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１が配置されて第２方向３２に沿って複数の導電性接着材２１がなす導電接着列４１が構成されている。また、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２が配置されて第２方向３２に沿って複数の絶縁性接着材２２がなす絶縁接着列４２が構成されている。導電接着列４１と絶縁接着列４２とが第１方向３１に間隔を空けて交互に１つずつ配置されている。半導体基板１の周縁に絶縁性接着材２２が屈曲しながら連続的に第２方向３２に延在してなる第１の絶縁接着部７１が設けられている。第１のライン７１はｎ配線１２の端部の変曲点の周辺やｐ配線１３の変曲点の周辺を覆うように形成されている。変曲点とは曲線の曲がる方向が変わる点や、直線から曲線に変わる（または曲線から直線に変わる）点であり、配線のアウトラインにこのような変曲点が存在する。配線シート付き裏面電極型太陽電池セルに熱が加わった場合、配線シートを構成する絶縁性基材と裏面電極型太陽電池セルを構成する半導体基板の熱膨張係数の差により、半導体基板に対して絶縁性基材はより大きく熱膨張する。この熱膨張の差によって応力が発生し、その応力が配線の変曲点に集中して、配線にクラックが入ったり断線したりする場合があった。そこで、実施形態６においては、配線の変曲点周辺を絶縁性接着材で覆って補強することで、応力が集中しても配線が破損することを抑制している。これによって、実施形態１と比較して実施形態６では導電性接着材２１の使用量を大きく低減しつつ導電性接着材２１による電極間または配線間の短絡の発生を抑制するとともに、応力集中によって配線が破損することを抑制している。なお、図１４では、導電接着列４１に含まれる複数の導電性接着材２１および絶縁接着列４２に含まれる複数の絶縁性接着材２２は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１や複数の絶縁性接着材２２が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the sixth embodiment are characterized by the following points. Conductive adhesives 21 are arranged on the n-electrodes 6 and p-electrodes 7 arranged in the second direction 32, respectively, and a conductive adhesive row 41 formed by a plurality of conductive adhesives 21 is formed along the second direction 32. Has been done. Further, an insulating adhesive 22 is arranged between the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, and a plurality of insulating adhesives 22 form along the second direction 32. An insulating adhesive row 42 is configured. The conductive adhesive row 41 and the insulating adhesive row 42 are alternately arranged one by one in the first direction 31 at intervals. A first insulating adhesive portion 71 is provided on the peripheral edge of the semiconductor substrate 1 so that the insulating adhesive 22 is bent and continuously extends in the second direction 32. The first line 71 is formed so as to cover the periphery of the inflection point at the end of the n wiring 12 and the periphery of the inflection point of the p wiring 13. An inflection point is a point where the bending direction of a curve changes or a point where a straight line changes to a curved line (or changes from a curved line to a straight line), and such an inflection point exists in the outline of a wiring. When heat is applied to the back electrode type solar cell with a wiring sheet, the difference in the coefficient of thermal expansion between the insulating base material constituting the wiring sheet and the semiconductor substrate constituting the back electrode type solar cell causes the semiconductor substrate to be affected. The insulating substrate expands more thermally. Stress is generated due to this difference in thermal expansion, and the stress is concentrated at the inflection point of the wiring, which may cause cracks or breaks in the wiring. Therefore, in the sixth embodiment, the periphery of the inflection point of the wiring is covered with an insulating adhesive to reinforce it, thereby suppressing the wiring from being damaged even if stress is concentrated. As a result, in the sixth embodiment as compared with the first embodiment, the amount of the conductive adhesive 21 used is greatly reduced, the occurrence of a short circuit between the electrodes or the wiring due to the conductive adhesive 21 is suppressed, and the stress concentration is achieved. It suppresses the damage of the wiring. In FIG. 14, the plurality of conductive adhesives 21 included in the conductive adhesive row 41 and the plurality of insulating adhesives 22 included in the insulating adhesive row 42 are arranged on a straight line along the second direction 32. However, these adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 and the plurality of insulating adhesives 22 are included in a certain range along the first direction 31. It suffices to form a row along the two directions 32.

実施形態６の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２に配置されたｎ電極６上およびｐ電極７上にそれぞれ導電性接着材２１を設置して第２方向３２に沿って複数の導電性接着材２１がなす導電接着列４１を形成する工程と、第２方向３２に隣り合って配置されたｎ電極６とｐ電極７との間にそれぞれ絶縁性接着材２２を設置して第２方向３２に沿って複数の絶縁性接着材２２がなす絶縁接着列４２を形成する工程と、半導体基板１の周縁に絶縁性接着材２２が屈曲しながら連続的に第２方向３２に延在してなる第１の絶縁接着部７１を形成する工程とを含み、導電接着列４１と絶縁接着列４２とは第１方向３１に間隔を空けて交互に１つずつ設置される方法により製造することができる。なお、絶縁接着列４２と第１のライン７１は単一の工程で同時に形成することができ、プロセスタイムを短縮できる点において、同時に形成することが好ましい。 In the back electrode type solar cell with a wiring sheet and the solar cell module of the sixth embodiment, for example, the conductive adhesive 21 is installed on the n electrode 6 and the p electrode 7 arranged in the second direction 32, respectively. Insulation between the step of forming the conductive adhesive row 41 formed by the plurality of conductive adhesives 21 along the two directions 32 and the n electrode 6 and the p electrode 7 arranged adjacent to each other in the second direction 32, respectively. The process of installing the adhesive 22 to form the insulating adhesive row 42 formed by the plurality of insulating adhesives 22 along the second direction 32, and the insulating adhesive 22 bending around the peripheral edge of the semiconductor substrate 1 are continuous. Including the step of forming the first insulating bonding portion 71 extending in the second direction 32, the conductive bonding row 41 and the insulating bonding row 42 are alternately one in the first direction 31 at intervals. It can be manufactured by a method in which it is installed one by one. The insulating bonding row 42 and the first line 71 can be formed at the same time in a single process, and are preferably formed at the same time in that the process time can be shortened.

実施形態６における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the sixth embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態７］
図１５に、実施形態７の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 7]
FIG. 15 shows the back electrode type solar cell with a wiring sheet of the seventh embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21 and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship is shown.

実施形態７の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２においてｐ電極７上には導電性接着材２１が配置されることなくｎ電極６上に導電性接着材２１が配置されて第２方向３２に沿った複数の導電性接着材２１がなす第１の導電接着列５１が構成されている。また、第２方向３２においてｎ電極６上には導電性接着材２１が配置されることなくｐ電極７上に導電性接着材２１が配置されて第２方向３２に沿った複数の導電性接着材２１がなす第２の導電接着列５２が構成されている。第１の導電接着列５１と第２の導電接着列５２とが第１方向３１に間隔を空けて交互に１つずつ配置されている。そして、隣接するｎ電極６とｐ電極７との間で絶縁性接着材２２が屈曲しながら連続的に第１方向３１に延在してなる第２の絶縁接着部７２が設けられている。これによって、実施形態１と比較して実施形態６では導電性接着材２１の使用量を大きく低減しつつ導電性接着材２１による電極間または配線間の短絡の発生を抑制し、更に絶縁性接着材２１による半導体基板１と配線シート１０との接続強度を高くすることができる。なお、図１５では、第１の導電接着列５１および第２の導電性接着列５２に含まれる複数の導電性接着材２１は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。また、図１５において第２の絶縁接着部７２は第１方向３１に沿って略一定の幅を有して１本のラインとして形成されているが、部分的に幅を変更したり、断続的な複数の絶縁性接着材２１を第１方向３１に沿って並べた形状としたり、第２の絶縁接着部７２の領域内に部分的に絶縁性接着材２２が配置されない空孔部を設けたりすることもできる。絶縁性接着材２１の形状を適宜選択することで、半導体基板１と絶縁性基材１１との固定強度を保ちつつ絶縁性接着材２１の使用量を抑えることができる。 The back electrode type solar cell with a wiring sheet and the solar cell module of the seventh embodiment are characterized by the following points. In the second direction 32, the conductive adhesive 21 is arranged on the n electrode 6 without the conductive adhesive 21 being arranged on the p electrode 7, and a plurality of conductive adhesives 21 along the second direction 32. The first conductive adhesive row 51 formed by the wire is formed. Further, in the second direction 32, the conductive adhesive material 21 is arranged on the p electrode 7 without the conductive adhesive material 21 being arranged on the n electrode 6, and a plurality of conductive adhesive materials are arranged along the second direction 32. A second conductive adhesive row 52 formed by the material 21 is formed. The first conductive adhesive row 51 and the second conductive adhesive row 52 are alternately arranged one by one in the first direction 31 at intervals. A second insulating adhesive portion 72 is provided between the adjacent n electrode 6 and the p electrode 7 so that the insulating adhesive 22 is bent and continuously extends in the first direction 31. As a result, in the sixth embodiment as compared with the first embodiment, the amount of the conductive adhesive 21 used is greatly reduced, the occurrence of a short circuit between the electrodes or the wiring due to the conductive adhesive 21 is suppressed, and the insulating adhesion is further performed. The connection strength between the semiconductor substrate 1 and the wiring sheet 10 made of the material 21 can be increased. In FIG. 15, the plurality of conductive adhesives 21 included in the first conductive adhesive row 51 and the second conductive adhesive row 52 are arranged on a straight line along the second direction 32. The adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 should be arranged in a row along the second direction 32 so as to be included in a certain range along the first direction 31. Just do it. Further, in FIG. 15, the second insulating adhesive portion 72 has a substantially constant width along the first direction 31 and is formed as one line, but the width may be partially changed or intermittently. A plurality of insulating adhesives 21 may be arranged along the first direction 31, or a hole may be provided in the region of the second insulating adhesive 72 so that the insulating adhesive 22 is not partially arranged. You can also do it. By appropriately selecting the shape of the insulating adhesive material 21, the amount of the insulating adhesive material 21 used can be suppressed while maintaining the fixing strength between the semiconductor substrate 1 and the insulating base material 11.

実施形態７の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２においてｐ電極７上には導電性接着材２１を設置することなくｎ電極６上に導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１がなす第１の導電接着列５１を形成する工程と、第２方向３２においてｎ電極６上には導電性接着材２１を設置することなくｐ電極７上に導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１がなす第２の導電接着列５２を形成する工程と、隣接するｎ電極６とｐ電極７との間に屈曲しながら連続的に第１方向３１に延在する絶縁性接着材２２の第２の絶縁接着部７２を形成する工程とを含み、第１の導電接着列５１と第２の導電接着列５２とが第１方向３１に間隔を空けて交互に１つずつ設置される方法により製造することができる。なお、第１の導電接着列５１と第２の導電接着列５２は単一の工程で同時に形成することができ、プロセスタイムを短縮できる点において、同時に形成することが好ましい。 The back electrode type solar cell with a wiring sheet and the solar cell module of the seventh embodiment are, for example, conductively bonded on the n electrode 6 in the second direction 32 without installing the conductive adhesive 21 on the p electrode 7. The step of installing the material 21 to form the first conductive adhesive row 51 formed by the plurality of conductive adhesives 21 along the second direction 32, and the conductive adhesive on the n electrode 6 in the second direction 32. Adjacent to the step of installing the conductive adhesive 21 on the p electrode 7 without installing the 21 to form the second conductive adhesive row 52 formed by the plurality of conductive adhesives 21 along the second direction 32. The first step includes a step of forming a second insulating adhesive portion 72 of the insulating adhesive 22 extending continuously in the first direction 31 while bending between the n electrode 6 and the p electrode 7. It can be manufactured by a method in which the conductive bonding row 51 and the second conductive bonding row 52 are alternately installed one by one at intervals in the first direction 31. The first conductive bonding row 51 and the second conductive bonding row 52 can be formed at the same time in a single step, and are preferably formed at the same time in that the process time can be shortened.

実施形態７における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the seventh embodiment is the same as that in the first embodiment, the description will not be repeated here.

［実施形態８］
図１６に、実施形態８の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールのｎ電極６、ｐ電極７、ｎ配線１２、ｐ配線１３、導電性接着材２１、および絶縁性接着材２２の位置関係を示す模式的な平面図を示す。[Embodiment 8]
FIG. 16 shows the back electrode type solar cell with a wiring sheet of the eighth embodiment, the n electrode 6, the p electrode 7, the n wiring 12, the p wiring 13, the conductive adhesive material 21, and the insulating adhesive material 22 of the solar cell module. A schematic plan view showing the positional relationship of the above is shown.

実施形態８の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、以下の点に特徴を有している。第２方向３２においてｐ電極７上には導電性接着材２１が配置されることなくｎ電極６上に導電性接着材２１が配置されて第２方向３２に沿った複数の導電性接着材２１がなす第１の導電接着列５１が構成されている。また、第２方向３２においてｎ電極６上には導電性接着材２１が配置されることなくｐ電極７上に導電性接着材２１が配置されて第２方向３２に沿った複数の導電性接着材２１がなす第２の導電接着列５２が構成されている。そして、第１の導電接着列５１と第２の導電接着列５２とが第１方向３１に間隔を空けて交互に１つずつ配置されている。また、絶縁性接着材２２が直線状に第３方向３３に延在してなる第３の絶縁接着部７３が設けられている。また、絶縁性接着材２２が直線状に第４方向３４に延在してなる第４の絶縁接着部７４が設けられている。第３の絶縁接着部７３および第４の絶縁接着部７４は導電性接着材２１とは第１方向３１および第２方向３２の両方で間隔を空けて形成されている。第３方向３３および第４方向３４は、第１方向３１および第２方向３２と異なる方向であって、第３方向３３は第４方向３４と異なる方向である。そして、絶縁性接着材２２の第３の絶縁接着部７３と絶縁性接着材２２の第４の絶縁接着部７４とは交差する。よって、絶縁性接着材２２は全体として格子状となっており、各格子の中央部付近に各導電性接着材２１が位置するように配置されている。これによって、実施形態１と比較して実施形態６では導電性接着材２１の使用量を大きく低減しつつ導電性接着材２１による電極間または配線間の短絡の発生を抑制し、更に絶縁性接着材２１による半導体基板１と配線シート１０との接続強度を高くすることができる。なお、図１６では、第１の導電接着列５１および第２の導電性接着列５２に含まれる複数の導電性接着材２１は第２方向３２に沿った直線上に配置されているが、それら接着材は直線上に配置されている必要はなく、複数の導電性接着材２１が第１方向３１に沿った一定の範囲内に含まれる形で第２方向３２に沿う列状になっていればよい。また、図１６において第３の絶縁接着部７３および第４の絶縁接着部７４はそれぞれ第３方向３３および第４方向３４に沿って略一定の幅を有して１本のラインとして形成されているが、部分的に各ラインの幅を変更したり、断続的な複数の絶縁性接着材２２をそれぞれ第３方向３３および第４方向３４に沿って並べた形状としたり、第３の絶縁接着部７３または第４の絶縁接着部７４の領域内に部分的に絶縁性接着材２２が配置されない空孔部を設けたりすることもできる。絶縁性接着材２１の形状を適宜選択することで、半導体基板１と絶縁性基材１１との固定強度を保ちつつ絶縁性接着材２１の使用量を抑えることができる。 The back electrode type solar cell with a wiring sheet and the solar cell module of the eighth embodiment are characterized by the following points. In the second direction 32, the conductive adhesive 21 is arranged on the n electrode 6 without the conductive adhesive 21 being arranged on the p electrode 7, and a plurality of conductive adhesives 21 along the second direction 32. The first conductive adhesive row 51 formed by the wire is formed. Further, in the second direction 32, the conductive adhesive material 21 is arranged on the p electrode 7 without the conductive adhesive material 21 being arranged on the n electrode 6, and a plurality of conductive adhesive materials are arranged along the second direction 32. A second conductive adhesive row 52 formed by the material 21 is formed. The first conductive adhesive row 51 and the second conductive adhesive row 52 are alternately arranged one by one in the first direction 31 at intervals. Further, a third insulating adhesive portion 73 is provided in which the insulating adhesive 22 extends linearly in the third direction 33. Further, a fourth insulating adhesive portion 74 is provided in which the insulating adhesive 22 extends linearly in the fourth direction 34. The third insulating adhesive portion 73 and the fourth insulating adhesive portion 74 are formed at intervals from the conductive adhesive material 21 in both the first direction 31 and the second direction 32. The third direction 33 and the fourth direction 34 are different directions from the first direction 31 and the second direction 32, and the third direction 33 is a direction different from the fourth direction 34. Then, the third insulating adhesive portion 73 of the insulating adhesive 22 and the fourth insulating adhesive portion 74 of the insulating adhesive 22 intersect with each other. Therefore, the insulating adhesive 22 has a lattice shape as a whole, and each conductive adhesive 21 is arranged so as to be located near the center of each lattice. As a result, in the sixth embodiment as compared with the first embodiment, the amount of the conductive adhesive 21 used is greatly reduced, the occurrence of a short circuit between the electrodes or the wiring due to the conductive adhesive 21 is suppressed, and the insulating adhesion is further performed. The connection strength between the semiconductor substrate 1 and the wiring sheet 10 made of the material 21 can be increased. In FIG. 16, the plurality of conductive adhesives 21 included in the first conductive adhesive row 51 and the second conductive adhesive row 52 are arranged on a straight line along the second direction 32. The adhesives do not have to be arranged in a straight line, and the plurality of conductive adhesives 21 should be arranged in a row along the second direction 32 so as to be included in a certain range along the first direction 31. Just do it. Further, in FIG. 16, the third insulating adhesive portion 73 and the fourth insulating adhesive portion 74 are formed as one line having a substantially constant width along the third direction 33 and the fourth direction 34, respectively. However, the width of each line may be partially changed, or a plurality of intermittent insulating adhesives 22 may be arranged along the third direction 33 and the fourth direction 34, respectively, or the third insulating adhesive may be formed. It is also possible to provide a hole portion in which the insulating adhesive 22 is not partially arranged in the region of the portion 73 or the fourth insulating adhesive portion 74. By appropriately selecting the shape of the insulating adhesive material 21, the amount of the insulating adhesive material 21 used can be suppressed while maintaining the fixing strength between the semiconductor substrate 1 and the insulating base material 11.

実施形態８の配線シート付き裏面電極型太陽電池セルおよび太陽電池モジュールは、たとえば、第２方向３２においてｐ電極７上には導電性接着材２１を設置することなくｎ電極６上に導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１がなす第１の導電接着列５１を形成する工程と、第２方向３２においてｎ電極６上には導電性接着材２１を設置することなくｐ電極７上に導電性接着材２１を設置して第２方向３２に沿った複数の導電性接着材２１がなす第２の導電接着列５２を形成する工程と、絶縁性接着材２２が直線状に第３方向３３に延在する絶縁性接着材２２の第３の絶縁接着部７３を形成する工程と、絶縁性接着材２２が直線状に第４方向３４に延在する絶縁性接着材２２の第４の絶縁接着部７４を形成する工程とを含み、第１の導電接着列５１と第２の導電接着列５２とは第１方向３１に間隔を空けて交互に配置され、第３の絶縁接着部７３および第４の絶縁接着部７４は導電性接着材２１とは第１方向３１および第２方向３２に間隔を空けて配置される方法により製造することができる。 The back electrode type solar cell with a wiring sheet and the solar cell module of the eighth embodiment are, for example, conductively bonded on the n electrode 6 in the second direction 32 without installing the conductive adhesive 21 on the p electrode 7. The step of installing the material 21 to form the first conductive adhesive row 51 formed by the plurality of conductive adhesives 21 along the second direction 32, and the conductive adhesive on the n electrode 6 in the second direction 32. Insulation with the step of installing the conductive adhesive material 21 on the p electrode 7 without installing the 21 and forming the second conductive adhesive row 52 formed by the plurality of conductive adhesive materials 21 along the second direction 32. The step of forming the third insulating adhesive portion 73 of the insulating adhesive 22 extending linearly in the third direction 33 and the insulating adhesive 22 extending linearly in the fourth direction 34. Including the step of forming the fourth insulating adhesive portion 74 of the existing insulating adhesive material 22, the first conductive adhesive row 51 and the second conductive adhesive row 52 alternate in the first direction 31 at intervals. The third insulating adhesive portion 73 and the fourth insulating adhesive portion 74 can be manufactured by a method in which the conductive adhesive 21 is arranged at intervals in the first direction 31 and the second direction 32. it can.

なお、第３の絶縁接着部７３と第４の絶縁接着部７４は一体の格子状パターンとして同時に形成することがプロセスタイムの短縮が出来る点と高い位置精度でのパターン形成をできる点とにおいて好ましい。加えて、第１の導電接着列５１と第２の導電接着列５２も単一の工程で同時に形成することができ、プロセスタイムを短縮できる点において、同時に形成することが好ましい。 It is preferable that the third insulating adhesive portion 73 and the fourth insulating adhesive portion 74 are simultaneously formed as an integral grid pattern in that the process time can be shortened and the pattern can be formed with high position accuracy. .. In addition, the first conductive bonding row 51 and the second conductive bonding row 52 can also be formed at the same time in a single step, and are preferably formed at the same time in that the process time can be shortened.

実施形態８における上記以外の説明は実施形態１と同様であるため、その説明についてはここでは繰り返さない。 Since the description other than the above in the eighth embodiment is the same as that in the first embodiment, the description will not be repeated here.

以上のように実施形態について説明を行なったが、上述の各実施形態および各実施例の構成を適宜組み合わせることも当初から予定している。 Although the embodiments have been described above, it is planned from the beginning that the configurations of the above-described embodiments and the embodiments are appropriately combined.

今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is shown by the claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the claims.

ここで開示された実施形態は、配線シート付き裏面電極型太陽電池セル、太陽電池モジュールおよび配線シート付き裏面電極型太陽電池セルの製造方法に利用することができる。 The embodiments disclosed here can be used in a method for manufacturing a back electrode type solar cell with a wiring sheet, a solar cell module, and a back electrode type solar cell with a wiring sheet.

１ 半導体基板、２ ｎ型不純物含有領域、３ ｐ型不純物含有領域、４，５ 誘電体膜、６ ｎ電極、７ ｐ電極、８ 裏面電極型太陽電池セル、１０ 配線シート、１１ 絶縁性基材、１２ ｎ配線、１２ａ 取り出し用ｎ配線、１３ ｐ配線、１３ａ 取り出し用ｐ配線、１４ 接続用配線、１６ 配線、１７ 透明基板、１８ 封止樹脂、１９ 裏面部材、２１ 導電性接着材、２２ 絶縁性接着材、３１ 第１方向、３２ 第２方向、３３ 第３方向、３４ 第４方向、４１ 導電接着列、４２ 絶縁接着列、４３，４４ 列群、５１ 第１の導電接着列、５２ 第２の導電接着列、６１ 第１の絶縁接着列、６２ 第２の絶縁接着列、７１ 第１の絶縁接着部、７２ 第２の絶縁接着部、７３ 第３の絶縁接着部、７４ 第４の絶縁接着部 1 Semiconductor substrate, 2 n-type impurity-containing region, 3 p-type impurity-containing region, 4, 5 dielectric film, 6 n electrode, 7 p electrode, 8 backside electrode type solar cell, 10 wiring sheet, 11 insulating base material , 12 n wiring, 12a n wiring for taking out, 13 p wiring, 13a p wiring for taking out, 14 connecting wiring, 16 wiring, 17 transparent substrate, 18 sealing resin, 19 back surface member, 21 conductive adhesive, 22 insulation Sexual adhesive, 31 1st direction, 32 2nd direction, 33 3rd direction, 34 4th direction, 41 Conductive adhesive row, 42 Insulation adhesive row, 43, 44 row group, 51 1st conductive adhesive row, 52 No. 2 Conductive Bonding Row, 61 1st Insulating Bonding Row, 62 2nd Insulating Bonding Row, 71 1st Insulating Bonding Section, 72 2nd Insulating Bonding Section, 73 3rd Insulating Bonding Section, 74 4th Insulation adhesive part

Claims (9)

配線シートと、
裏面電極型太陽電池セルと、を備え、
前記配線シートは、絶縁性基材と、前記絶縁性基材上の導電性の配線とを含み、前記配線はｐ配線とｎ配線とを含み、前記ｐ配線と前記ｎ配線とは間隔を空けて隣り合って配置されており、
前記裏面電極型太陽電池セルは、基板と、前記基板の一方の面側の電極とを含み、前記電極はｐ電極とｎ電極とを含み、前記ｐ電極と前記ｎ電極とは間隔を空けて隣り合って配置されており、
前記ｐ配線および前記ｎ配線は、それぞれ、前記ｐ電極および前記ｎ電極と、導電性接着材を用いて接続されており、
前記配線シートと前記裏面電極型太陽電池セルとは、絶縁性接着材を用いて接続されており、
前記ｐ配線および前記ｎ配線は、第１方向に直線状に延在する部分を含み、
前記第１方向と直交する第２方向に間隔を空けて隣り合う前記ｐ電極および前記ｎ電極の両方に前記導電性接着材が配置された箇所の間には前記絶縁性接着材が配置されておらず、
前記ｐ電極と前記ｎ電極とは前記第２方向に１つずつ交互に間隔を空けて配置され、
前記第２方向に隣り合って配置された前記ｐ電極上および前記ｎ電極上にそれぞれ前記導電性接着材が配置されて前記第２方向に沿って複数の前記導電性接着材が配置された導電接着列が構成されており、
前記第２方向に隣り合って配置された前記ｐ電極と前記ｎ電極との間にはそれぞれ前記絶縁性接着材が配置されて前記第２方向に沿って複数の前記絶縁性接着材が配置された絶縁接着列が構成されている、配線シート付き裏面電極型太陽電池セル。 Wiring sheet and
With a back electrode type solar cell,
The wiring sheet includes an insulating base material and a conductive wiring on the insulating base material, the wiring includes a p-wiring and an n-wiring, and the p-wiring and the n-wiring are spaced apart from each other. Are placed next to each other
The back surface electrode type solar cell includes a substrate and an electrode on one surface side of the substrate, the electrode includes a p electrode and an n electrode, and the p electrode and the n electrode are spaced apart from each other. They are placed next to each other
The p-wiring and the n-wiring are connected to the p-electrode and the n-electrode, respectively, by using a conductive adhesive.
The wiring sheet and the back electrode type solar cell are connected by using an insulating adhesive.
The p-wiring and the n-wiring include a portion extending linearly in the first direction.
Between the location where the conductive adhesive on both the p electrode and the n electrode adjacent at intervals in the second direction are arranged is disposed the insulating adhesive material which is perpendicular to the first direction No ,
The p-electrode and the n-electrode are alternately arranged one by one in the second direction at intervals.
The conductive adhesives are arranged on the p-electrode and the n-electrodes arranged adjacent to each other in the second direction, and a plurality of the conductive adhesives are arranged along the second direction. Adhesive rows are made up
The insulating adhesive is arranged between the p electrode and the n electrode arranged adjacent to each other in the second direction, and a plurality of the insulating adhesives are arranged along the second direction. Back-side electrode type solar cell with wiring sheet , which is composed of insulating and adhesive rows. 前記導電接着列と前記絶縁接着列とが前記第１方向に間隔を空けて交互に１つずつ配置されている、請求項１に記載の配線シート付き裏面電極型太陽電池セル。 Before Kishirubeden adhesive string and said insulating adhesive rows are arranged one by one alternately at intervals in the first direction, with interconnection sheet back electrode type solar cell of claim 1. ２つの前記絶縁接着列と、前記２つの前記絶縁接着列の間に前記２つの前記絶縁接着列とは間隔を空けて配置された１つの前記導電接着列とからなる列群が、前記第１方向に沿って間隔を空けて複数配置されている、請求項１に記載の配線シート付き裏面電極型太陽電池セル。 And two of the insulating adhesive string, the two of said two of said insulating adhesive string and array group consisting of one of the conductive adhesive strings which are spaced between the insulating adhesive string, the first The back electrode type solar cell with a wiring sheet according to claim 1, wherein a plurality of solar cells are arranged at intervals along the direction. ２つの前記導電接着列と、前記２つの前記導電接着列の間に前記導電接着列とは間隔を空けて１つの前記絶縁接着列とからなる列群が、前記第１方向に沿って間隔を空けて複数配置されている、請求項１に記載の配線シート付き裏面電極型太陽電池セル。 A group of rows consisting of the two conductive bonding rows and one insulating bonding row spaced between the two conductive bonding rows and the conductive bonding row is spaced along the first direction. The back electrode type solar cell with a wiring sheet according to claim 1, which is arranged in a plurality of spaces. 配線シートと、
裏面電極型太陽電池セルと、を備え、
前記配線シートは、絶縁性基材と、前記絶縁性基材上の導電性の配線とを含み、前記配線はｐ配線とｎ配線とを含み、前記ｐ配線と前記ｎ配線とは間隔を空けて隣り合って配置されており、
前記裏面電極型太陽電池セルは、基板と、前記基板の一方の面側の電極とを含み、前記電極はｐ電極とｎ電極とを含み、前記ｐ電極と前記ｎ電極とは間隔を空けて隣り合って配置されており、
前記ｐ配線および前記ｎ配線は、それぞれ、前記ｐ電極および前記ｎ電極と、導電性接着材を用いて接続されており、
前記配線シートと前記裏面電極型太陽電池セルとは、絶縁性接着材を用いて接続されており、
前記ｐ配線および前記ｎ配線は、第１方向に直線状に延在する部分を含み、
前記第１方向と直交する第２方向に間隔を空けて隣り合う前記ｐ電極および前記ｎ電極の両方に前記導電性接着材が配置された箇所の間には前記絶縁性接着材が配置されておらず、
前記ｐ電極と前記ｎ電極とは前記第２方向に１つずつ交互に間隔を空けて配置され、
前記第２方向に配置された前記ｐ電極上および前記ｎ電極上にそれぞれ前記導電性接着材が配置されて前記第２方向に沿った複数の前記導電性接着材がなす導電接着列が構成されており、
前記第２方向において隣り合う前記ｐ電極と前記ｎ電極との間に前記絶縁性接着材が配置されている箇所と前記絶縁性接着材が配置されていない箇所とが１つずつ交互に設けられて前記第２方向に沿った複数の前記絶縁性接着材がなす第１の絶縁接着列が構成され、
前記第１の絶縁接着列とは前記絶縁性接着材が配置されている箇所と前記絶縁性接着材が配置されていない箇所とが入れ替わった前記第２方向に沿った複数の前記絶縁性接着材がなす第２の絶縁接着列が前記第１の絶縁接着列とは別に構成されており、
前記第１の絶縁接着列と前記第２の絶縁接着列とが前記第１方向に間隔を空けて交互に１つずつ配置されており、
前記第１の絶縁接着列と前記第２の絶縁接着列との間に前記導電接着列が配置されている、配線シート付き裏面電極型太陽電池セル。 Wiring sheet and
With a back electrode type solar cell,
The wiring sheet includes an insulating base material and a conductive wiring on the insulating base material, the wiring includes a p-wiring and an n-wiring, and the p-wiring and the n-wiring are spaced apart from each other. Are placed next to each other
The back surface electrode type solar cell includes a substrate and an electrode on one surface side of the substrate, the electrode includes a p electrode and an n electrode, and the p electrode and the n electrode are spaced apart from each other. They are placed next to each other
The p-wiring and the n-wiring are connected to the p-electrode and the n-electrode, respectively, by using a conductive adhesive.
The wiring sheet and the back electrode type solar cell are connected by using an insulating adhesive.
The p-wiring and the n-wiring include a portion extending linearly in the first direction.
The insulating adhesive is arranged between the locations where the conductive adhesive is arranged on both the p electrode and the n electrode adjacent to each other at intervals in the second direction orthogonal to the first direction. No,
The p-electrode and the n-electrode are alternately arranged one by one in the second direction at intervals.
The conductive adhesive material is arranged on the p electrode and the n electrode arranged in the second direction, respectively, and a conductive adhesive row formed by the plurality of the conductive adhesive materials along the second direction is formed. And
The place where the insulating adhesive is arranged and the place where the insulating adhesive is not arranged are alternately provided one by one between the p electrode and the n electrode adjacent to each other in the second direction. A first insulating adhesive row formed by the plurality of insulating adhesives along the second direction is formed.
The first insulating adhesive row is a plurality of the insulating adhesives along the second direction in which the portion where the insulating adhesive is arranged and the portion where the insulating adhesive is not arranged are interchanged. The second insulating and adhesive row formed by the steel is configured separately from the first insulating and adhesive row.
The first insulation-bonding row and the second insulation-bonding row are alternately arranged one by one at intervals in the first direction.
The first of the conductive adhesive rows are arranged, wiring sheet back electrode type solar cell with between the insulating bonding sequence and said second insulating adhesive strings. 前記導電接着列と前記絶縁接着列とが前記第１方向に間隔を空けて交互に１つずつ配置されており、
前記基板の周縁に前記絶縁性接着材が屈曲しながら連続的に前記第２方向に延在してなる第１の絶縁接着部をさらに備えた、請求項１に記載の配線シート付き裏面電極型太陽電池セル。 Are arranged one by one alternately with prior Kishirubeden adhesive strings and the insulating adhesive string at intervals in the first direction,
The back electrode type with a wiring sheet according to claim 1, further provided with a first insulating adhesive portion extending in the second direction continuously while the insulating adhesive is bent on the peripheral edge of the substrate. Solar cell. 請求項１〜請求項６のいずれか１項に記載の配線シート付き裏面電極型太陽電池セルを備えた、太陽電池モジュール。 A solar cell module comprising the back electrode type solar cell with a wiring sheet according to any one of claims 1 to 6. 配線シートと裏面電極型太陽電池セルとを備えた配線シート付き裏面電極型太陽電池セルを製造する方法であって、
前記配線シートは、絶縁性基材と、前記絶縁性基材上の導電性の配線とを含み、前記配線はｐ配線とｎ配線とを含み、前記ｐ配線と前記ｎ配線とは間隔を空けて隣り合って配置されており、
前記裏面電極型太陽電池セルは、基板と、前記基板の一方の面側の電極とを含み、前記電極はｐ電極とｎ電極とを含み、前記ｐ電極と前記ｎ電極とは間隔を空けて隣り合って配置されており、
前記ｐ配線および前記ｎ配線は、それぞれ、前記ｐ電極および前記ｎ電極と、導電性接着材を用いて接続されており、
前記配線シートと前記裏面電極型太陽電池セルとは、絶縁性接着材を用いて接続されており、
前記電極と前記配線との間に前記導電性接着材が位置するように前記導電性接着材を設置する工程と、
前記電極間および前記配線間に絶縁性接着材が位置するように前記絶縁性接着材を設置する工程と、
前記裏面電極型太陽電池セルと前記配線シートとを重ね合わせる工程と、を含み、
前記ｐ配線および前記ｎ配線は、第１方向に直線状に延在する部分を含み、
前記絶縁性接着材を設置する工程は、前記第１方向と直交する第２方向に間隔を空けて隣り合う前記ｐ電極および前記ｎ電極の両方に前記導電性接着材が配置された箇所の間には前記絶縁性接着材を設置しないように行われ、
前記導電性接着材を設置する工程は、前記第２方向に配置された前記ｐ電極上および前記ｎ電極上に前記導電性接着材を配置して前記第２方向に前記導電性接着材の列を形成する工程を含み、
前記絶縁性接着材を設置する工程は、前記第２方向に隣り合って配置された前記ｐ電極と前記ｎ電極との間に前記絶縁性接着材を配置して前記第２方向に前記絶縁性接着材の列を形成する工程を含む、配線シート付き裏面電極型太陽電池セルの製造方法。 A method for manufacturing a back electrode type solar cell with a wiring sheet including a wiring sheet and a back electrode type solar cell.
The wiring sheet includes an insulating base material and a conductive wiring on the insulating base material, the wiring includes a p-wiring and an n-wiring, and the p-wiring and the n-wiring are spaced apart from each other. Are placed next to each other
The back surface electrode type solar cell includes a substrate and an electrode on one surface side of the substrate, the electrode includes a p electrode and an n electrode, and the p electrode and the n electrode are spaced apart from each other. They are placed next to each other
The p-wiring and the n-wiring are connected to the p-electrode and the n-electrode, respectively, by using a conductive adhesive.
The wiring sheet and the back electrode type solar cell are connected by using an insulating adhesive.
The step of installing the conductive adhesive so that the conductive adhesive is located between the electrode and the wiring, and
The step of installing the insulating adhesive so that the insulating adhesive is located between the electrodes and the wiring, and
Including a step of superimposing the back electrode type solar cell and the wiring sheet.
The p-wiring and the n-wiring include a portion extending linearly in the first direction.
The step of installing the insulating adhesive is between the locations where the conductive adhesive is arranged on both the p-electrode and the n-electrode adjacent to each other at intervals in the second direction orthogonal to the first direction. It is done so that the insulating adhesive is not installed in the
In the step of installing the conductive adhesive, the conductive adhesive is arranged on the p electrode and the n electrode arranged in the second direction, and the row of the conductive adhesive is arranged in the second direction. Including the process of forming
In the step of installing the insulating adhesive, the insulating adhesive is arranged between the p electrode and the n electrode arranged adjacent to each other in the second direction, and the insulating adhesive is provided in the second direction. A method for manufacturing a back electrode type solar cell with a wiring sheet, which comprises a step of forming a row of adhesives. 前記導電性接着材を設置する工程は、前記第２方向に配置された前記ｐ電極上および前記ｎ電極上に前記導電性接着材を配置して前記第２方向に前記導電性接着材の列を形成する工程を含み、
前記絶縁性接着材を設置する工程は、前記絶縁性接着材が所定の方向に延在してなる少なくとも１本の絶縁接着部を形成する工程を含む、請求項８に記載の配線シート付き裏面電極型太陽電池セルの製造方法。 In the step of installing the conductive adhesive, the conductive adhesive is arranged on the p electrode and the n electrode arranged in the second direction, and the row of the conductive adhesive is arranged in the second direction. Including the process of forming
The back surface with a wiring sheet according to claim 8 , wherein the step of installing the insulating adhesive includes a step of forming at least one insulating adhesive portion in which the insulating adhesive extends in a predetermined direction. A method for manufacturing an electrode type solar cell.
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