TWI482293B - Solar cell module and manufacturing method thereof - Google Patents

Solar cell module and manufacturing method thereof Download PDF

Info

Publication number
TWI482293B
TWI482293B TW099110298A TW99110298A TWI482293B TW I482293 B TWI482293 B TW I482293B TW 099110298 A TW099110298 A TW 099110298A TW 99110298 A TW99110298 A TW 99110298A TW I482293 B TWI482293 B TW I482293B
Authority
TW
Taiwan
Prior art keywords
solar cell
thickness
surface electrode
particles
long diameter
Prior art date
Application number
TW099110298A
Other languages
Chinese (zh)
Other versions
TW201044611A (en
Inventor
Hideaki Okumiya
Takahiro Fujii
Yasuhiro Suga
Original Assignee
Dexerials Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dexerials Corp filed Critical Dexerials Corp
Publication of TW201044611A publication Critical patent/TW201044611A/en
Application granted granted Critical
Publication of TWI482293B publication Critical patent/TWI482293B/en

Links

Classifications

    • 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
    • H01L31/042—PV modules or arrays of single PV cells
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/016—Additives defined by their aspect ratio
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Dispersion Chemistry (AREA)
  • Conductive Materials (AREA)
  • Photovoltaic Devices (AREA)

Description

太陽電池模組及其製造方法Solar battery module and manufacturing method thereof

本發明係關於一種將太陽電池單元之表面電極與帯線連接而成之太陽電池模組、及其製造方法。The present invention relates to a solar cell module in which a surface electrode of a solar cell unit is connected to a rifling wire, and a method of manufacturing the same.

太陽電池模組係將複數個太陽電池單元串聯而成者，其中至少一個太陽電池單元之表面電極係與由經焊料塗敷之帯狀銅箔所構成之帯線連接。具體而言，於晶體系太陽電池模組中，以銀糊之網版印刷而形成於太陽電池單元之受光面上之匯流排條電極、與作為內部引腳而發揮功能之帯線係藉由焊料處理而連接，於薄膜系太陽電池模組中，作為電力輸出用外部引腳之帯線係藉由焊料處理而連接於兩端之太陽電池單元之表面電極(專利文獻1)。The solar cell module is formed by connecting a plurality of solar cell units in series, and at least one of the surface electrode electrodes of the solar cell unit is connected to a twisted wire formed of a solder-coated beryllium copper foil. Specifically, in the solar cell module of the crystal system, the bus bar electrode formed on the light receiving surface of the solar cell unit by screen printing of the silver paste and the twist line functioning as an internal pin are used by In the thin-film solar cell module, the thin-film solar cell module is connected to the surface electrode of the solar cell at both ends by soldering as a twist line of the external lead for power output (Patent Document 1).

然而，因焊料處理時之加熱而會使太陽電池單元產生彎曲，或在帯線與表面電極之連接部產生內部應力，其結果，視情形而存在有太陽電池單元之表面電極與帯線之間的連接可靠性降低之問題。However, the solar cell unit is bent due to the heating during the solder treatment, or internal stress is generated at the connection portion between the twist line and the surface electrode, and as a result, there is a case where the surface electrode of the solar cell unit and the twist line exist. The problem of reduced connection reliability.

因此，近年來，在太陽電池單元之表面電極與帯線之連接，使用藉由在較低之溫度下之熱壓接處理而可連接之導電接著膜(專利文獻2)。該種導電接著膜係使用將平均粒徑為數μm等級之球狀導電粒子分散於熱硬化型黏合劑樹脂組成物中並膜化而成者。又，球狀導電粒子係使用硬度較高之球狀金屬粒子或硬度較低之金屬鍍敷被覆球狀樹脂粒子。Therefore, in recent years, in the connection between the surface electrode of the solar cell and the rifling, a conductive adhesive film which can be connected by a thermocompression bonding treatment at a relatively low temperature is used (Patent Document 2). This type of conductive adhesive film is obtained by dispersing spherical conductive particles having an average particle diameter of several μm in a thermosetting adhesive resin composition and forming a film. Further, the spherical conductive particles are coated with spherical resin particles by using spherical metal particles having a high hardness or metal having a low hardness.

專利文獻1：日本專利特開2004-356349號公報Patent Document 1: Japanese Patent Laid-Open Publication No. 2004-356349

專利文獻2：日本專利特開2008-135654號公報Patent Document 2: Japanese Patent Laid-Open Publication No. 2008-135654

然而，由於太陽電池單元之表面電極之大部分係藉由塗佈、加熱銀糊而形成，故通常於表面電極之表面會形成數μm等級之凹凸，且球狀導電粒子之粒徑亦存在不均。However, since most of the surface electrodes of the solar cell are formed by coating and heating the silver paste, irregularities of several μm are usually formed on the surface of the surface electrode, and the particle diameter of the spherical conductive particles is also not present. All.

因此，在使用硬度較高之球狀金屬粒子作為待與導電接著膜混合之導電粒子時，若將粒徑較大之球狀金屬粒子挾持於太陽電池單元之表面電極與帯線之間，則比其粒徑小的球狀金屬粒子無法同時與表面電極及帯線接觸，從而成為無助於連接者，其結果會有表面電極與帯線之間的連接可靠性降低之問題。Therefore, when the spherical metal particles having a higher hardness are used as the conductive particles to be mixed with the conductive adhesive film, if the spherical metal particles having a larger particle diameter are held between the surface electrode of the solar battery cell and the twisted wire, The spherical metal particles having a smaller particle diameter cannot simultaneously contact the surface electrode and the ruthenium wire, and thus do not contribute to the connection. As a result, the connection reliability between the surface electrode and the ruthenium line is lowered.

另一方面，在使用硬度較低之金屬鍍敷被覆球狀樹脂粒子之情形，挾持於太陽電池單元之表面電極與帯線之間的金屬鍍敷被覆球狀樹脂粒子因連接時之熱壓接處理而被壓成扁平，故認為其係無助於連接者而可不存在，或者即便存在亦可僅有稍許。然而，自表面電極材料之成本降低之觀點而言，於替代銀糊而使用Al糊或Al蒸鍍膜之情形，在連接時之熱壓接處理中，金屬鍍敷被覆球狀樹脂粒子變形為扁平，但並未導致Al蒸鍍膜之表面非動態膜受到破壞，其結果會有太陽電池單元之表面電極與帯線之間的連接可靠性降低之問題。On the other hand, in the case where the spherical resin particles are coated with a metal having a low hardness, the metal plating coated spherical resin particles held between the surface electrode of the solar cell and the twisted wire are thermally crimped by the connection. The treatment is pressed into a flat shape, so it is considered that it does not contribute to the connector and may not exist, or even if it exists, it may be only slightly. However, from the viewpoint of the cost reduction of the surface electrode material, in the case of using an Al paste or an Al vapor-deposited film instead of the silver paste, the metal plating coated spherical resin particles are deformed into a flat shape in the thermocompression bonding process at the time of connection. However, the surface non-dynamic film of the Al vapor-deposited film is not damaged, and as a result, the connection reliability between the surface electrode of the solar cell and the twist line is lowered.

本發明之目的係為了解決上述習知之技術問題，其係一種將複數個太陽電池單元串聯、且至少一個太陽電池單元之表面電極與帯線連接而成之太陽電池模組，無論表面電極之材質或表面凹凸之有無，皆可確保表面電極與帯線之間的連接可靠性。The object of the present invention is to solve the above-mentioned technical problems, which is a solar battery module in which a plurality of solar battery cells are connected in series and at least one surface electrode of a solar battery cell is connected to a twisted wire, regardless of the surface electrode material. Or the presence or absence of surface irregularities ensures the reliability of the connection between the surface electrode and the twisted wire.

本發明者等發現，作為用於導電接著膜之導電粒子，其至少50質量%以上係使用薄片(flake)狀金屬粒子，藉此可達成上述目的，從而完成本發明，上述薄片狀金屬粒子具有特定之大小與縱橫比，且具有較表面電極與帯線更高之硬度。The present inventors have found that at least 50% by mass or more of the conductive particles for the conductive adhesive film are made of flake-shaped metal particles, whereby the above object can be attained, and the present invention is completed, wherein the flaky metal particles have Specific size and aspect ratio, and has a higher hardness than the surface electrode and the twist line.

即，本發明之太陽電池模組，係複數個太陽電池單元串聯而成，至少一個太陽電池單元之表面電極與帯線連接，其特徵在於：該太陽電池單元之表面電極與帯線係經由將導電粒子分散於黏合劑樹脂組成物而構成之導電性接著層以熱壓接處理連接，導電粒子之50質量%以上係薄片狀金屬粒子，該薄片狀金屬粒子具有1～50μm之長徑，5μm以下之厚度，3～150之縱橫比(=長徑/厚度)，且具有高於第1電極、第2電極及帯線之硬度。That is, the solar cell module of the present invention is formed by connecting a plurality of solar cell units in series, and the surface electrode of at least one of the solar cell units is connected to the squall line, wherein the surface electrode and the squall line of the solar cell unit are The conductive adhesive layer in which the conductive particles are dispersed in the binder resin composition is connected by thermocompression bonding, and 50% by mass or more of the conductive particles are flake-shaped metal particles having a long diameter of 1 to 50 μm and 5 μm. The thickness below is an aspect ratio (= long diameter/thickness) of 3 to 150, and has a hardness higher than that of the first electrode, the second electrode, and the twisted wire.

又，本發明之太陽電池模組之製造方法，該太陽電池模組，係複數個太陽電池單元串聯，至少一個太陽電池單元之表面電極與帯線連接，其特徵在於，具有：於該太陽電池單元之表面電極上積層將導電粒子分散於黏合劑樹脂組成物而構成之導電性接著層之步驟；於該導電性接著層上配置帯線之步驟；以及自該導電性接著層上之帯線側以熱壓接處理將太陽電池單元之表面電極與帯線電氣連接之步驟；導電粒子之50質量%以上係薄片狀金屬粒子，該薄片狀金屬粒子具有1～50μm之長徑，5μm以下之厚度，3～150之縱橫比(=長徑/厚度)，且具有高於表面電極及帯線之硬度。Moreover, in the method of manufacturing a solar cell module of the present invention, the solar cell module is a plurality of solar cell units connected in series, and at least one surface electrode of the solar cell unit is connected to the squall line, and is characterized in that: a step of dispersing conductive particles on the surface electrode of the unit to form a conductive adhesive layer formed by the binder resin composition; a step of disposing a twist line on the conductive adhesive layer; and a twist line from the conductive adhesive layer The step of electrically connecting the surface electrode of the solar cell unit to the twist line by thermocompression bonding; 50% by mass or more of the conductive particles are flake-shaped metal particles having a long diameter of 1 to 50 μm and a thickness of 5 μm or less The thickness, the aspect ratio of 3 to 150 (= long diameter/thickness), and has a hardness higher than that of the surface electrode and the twisted wire.

進而，本發明之導電接著劑，係用以將複數個太陽電池單元串聯而成之太陽電池模組中至少一個太陽電池單元之表面電極與帯線加以連接，其特徵在於：於黏合劑樹脂組成物分散有導電粒子，導電粒子之50質量%以上係薄片狀金屬粒子，該薄片狀金屬粒子具有1～50μm之長徑，5μm以下之厚度，3～150之縱橫比(=長徑/厚度)，且具有高於表面電極及帯線之硬度。Further, the conductive adhesive of the present invention is used for connecting a surface electrode of at least one solar cell unit in a solar cell module in which a plurality of solar battery cells are connected in series with a twisted wire, and is characterized in that the adhesive resin is composed of The conductive particles are dispersed, and 50% by mass or more of the conductive particles are flake-shaped metal particles having a major axis of 1 to 50 μm, a thickness of 5 μm or less, and an aspect ratio of 3 to 150 (=long diameter/thickness). And has a hardness higher than the surface electrode and the twist line.

使用導電接著膜將複數個太陽電池單元串聯、且將至少一個太陽電池單元之表面電極與帯線連接之太陽電池模組中，作為與導電接著膜混合之導電粒子，其至少50質量%以上係使用具有1～50μm之長徑、5μm以下之厚度、3～150之縱橫比(=長徑/厚度)的薄片狀金屬粒子。該種薄片狀金屬粒子之形狀為扁平狀，故在挾持於太陽電池單元之表面電極與帯線之間時可相互重疊，因此可使與連接無關之導電粒子之數量消失或變得極少。從而，無論太陽電池單元中通常利用之電極之表面凹凸的有無，皆可確保良好之連接可靠性。A solar cell module in which a plurality of solar battery cells are connected in series and a surface electrode of at least one solar cell unit is connected to a rifling wire by using a conductive adhesive film, and at least 50% by mass or more of the conductive particles mixed with the conductive adhesive film A flaky metal particle having a major axis of 1 to 50 μm, a thickness of 5 μm or less, and an aspect ratio (=long diameter/thickness) of 3 to 150 is used. Since the shape of the flaky metal particles is flat, they can overlap each other when held between the surface electrodes of the solar cell and the ridge line, so that the number of conductive particles irrelevant to the connection can be eliminated or become extremely small. Therefore, good connection reliability can be ensured regardless of the presence or absence of surface unevenness of the electrode which is generally used in the solar cell.

又，該薄片狀金屬粒子具有高於太陽電池單元之表面電極及帯線之硬度。因此，在為了形成該等電極而使用Al糊或Al蒸鍍膜之情形，亦可破壞熱壓接處理時之鋁之表面非動態膜，從而可確保良好之連接可靠性。又，對於在環氧樹脂中混練Ag粉末而成之硬化型Ag糊電極，亦可確保良好之接著性。Further, the flaky metal particles have a hardness higher than that of the surface electrodes and the ridges of the solar cell. Therefore, in the case where an Al paste or an Al vapor-deposited film is used for forming the electrodes, the surface non-dynamic film of aluminum during the thermocompression bonding treatment can be broken, and good connection reliability can be ensured. Moreover, it is also possible to ensure good adhesion to the curable Ag paste electrode in which Ag powder is kneaded in an epoxy resin.

以下，一邊參照圖式，一邊說明本發明之太陽電池模組之一例。Hereinafter, an example of a solar battery module of the present invention will be described with reference to the drawings.

本發明之太陽電池模組係串聯複數個太陽電池單元，且至少一個太陽電池單元之表面電極與帯線連接。The solar cell module of the present invention is a plurality of solar cells connected in series, and the surface electrodes of at least one of the solar cells are connected to the rifling.

本發明適用之太陽電池單元具有光電轉換元件作為光電轉換部。光電轉換元件可使用以單晶型矽光電轉換元件、多晶型矽光電轉換元件、微晶矽光電轉換元件、非晶質矽型太陽電池元件為首之任意的矽系光電轉換元件，此外可使用GaAs型或黃銅礦型等其他的半導體化合物系光電轉換元件、色素增感太陽電池等之色素系光電轉換元件等。於該等之表面，視需要亦可形成ITO薄膜電極。The solar battery cell to which the present invention is applied has a photoelectric conversion element as a photoelectric conversion portion. As the photoelectric conversion element, any of the lanthanide photoelectric conversion elements including a single crystal type photoelectric conversion element, a polycrystalline germanium photoelectric conversion element, a microcrystalline germanium photoelectric conversion element, and an amorphous germanium solar cell element can be used, and can be used. Other semiconductor compounds such as a GaAs type or a chalcopyrite type are a photoelectric conversion element such as a photoelectric conversion element or a dye-sensitized solar cell. On these surfaces, an ITO thin film electrode can also be formed as needed.

由該等光電轉換元件所構成之太陽電池單元可大致區別為薄膜系太陽電池單元及其以外之晶體系太陽電池單元。The solar cell unit composed of the photoelectric conversion elements can be roughly distinguished from a thin film type solar cell unit and other crystal system solar cell units.

以下，對使用晶體系太陽電池單元之本發明之太陽電池模組之一例進行說明。Hereinafter, an example of a solar cell module of the present invention using a crystal system solar cell will be described.

圖1係本發明之太陽電池模組100之概略部分截面圖。該太陽電池模組100係將複數個太陽電池單元50利用作為內部連接而發揮功能之帯線30串聯而成者。於此，太陽電池單元50係由以下部分構成：光電轉換元件10；設置於光電轉換元件10之受光面之可為表面電極之匯流排條電極即第1電極21；設置於非受光面之匯流排條電極即第2電極23；及以與第1電極、第2電極大致正交之方式設置於光電轉換元件10上之集電極即指狀電極22,24。1 is a schematic partial cross-sectional view of a solar cell module 100 of the present invention. In the solar battery module 100, a plurality of solar battery cells 50 are connected in series by using a twist line 30 functioning as an internal connection. Here, the solar cell unit 50 is composed of a photoelectric conversion element 10, a first electrode 21 which is a bus bar electrode which can be a surface electrode of the light-receiving surface of the photoelectric conversion element 10, and a confluence which is provided on the non-light-receiving surface. The row electrode is the second electrode 23; and the finger electrodes 22 and 24 which are provided on the photoelectric conversion element 10 so as to be substantially orthogonal to the first electrode and the second electrode.

再者，圖1之太陽電池模組100通常如圖2所示，其係在由鋁等金屬架200、玻璃與透光性塑膠等透光性表面保護材201、及以樹脂膜挾持鋁箔之積層體等之背面保護材202所形成之空間中，被乙烯-乙酸乙烯共聚物(EVA樹脂)等透光性密封材203所密封。In addition, the solar cell module 100 of FIG. 1 is generally shown in FIG. 2, and is made of a metal frame 200 such as aluminum, a translucent surface protective material 201 such as glass and translucent plastic, and an aluminum foil held by a resin film. The space formed by the back surface protective material 202 such as a laminate is sealed by a light-transmitting sealing material 203 such as an ethylene-vinyl acetate copolymer (EVA resin).

於如此結構之本發明之太陽電池模組中，如圖1所示，帯線30與第1電極21及第2電極23係經由將導電粒子分散於黏合劑樹脂而構成之導電性接著層40以熱壓接處理來連接。In the solar battery module of the present invention having such a configuration, as shown in FIG. 1, the twisted wire 30 and the first electrode 21 and the second electrode 23 are electrically conductive adhesive layers 40 which are formed by dispersing conductive particles in a binder resin. Connected by thermocompression bonding.

本發明中，使用扁平的薄片狀金屬粒子作為導電粒子。扁平的薄片狀金屬粒子在被挾持於太陽電池單元之受光面之第1電極或第2電極與帯線之間時可相互重疊，因此，可使與連接無關之導電粒子之數量消失或變得極少，從而無論用於太陽電池單元之通常之電極之表面凹凸的有無，皆可確保良好之連接可靠性。In the present invention, flat flaky metal particles are used as the conductive particles. The flat flaky metal particles can overlap each other when held between the first electrode or the second electrode of the light receiving surface of the solar cell and the ridge line, so that the number of conductive particles irrelevant to the connection can be eliminated or become It is rare, so that good connection reliability can be ensured regardless of the presence or absence of surface irregularities of the usual electrodes for solar cells.

作為薄片狀金屬粒子，可使用鎳、銀、焊料等金屬或合金之薄片狀金屬粒子，但從低成本與良好之導電性之觀點而言，可較佳地使用薄片狀鎳粒子。As the flaky metal particles, flake-shaped metal particles of a metal or an alloy such as nickel, silver or solder can be used, but flaky nickel particles can be preferably used from the viewpoint of low cost and good electrical conductivity.

本發明中使用之薄片狀金屬粒子係長徑為1～50μm、較佳為1～40μm、且厚度為5μm以下、較佳為3μm以下者。關於長徑，若未滿1μm，則有連接後之導通電阻變高之傾向，若超過50μm，則於膜成形時，有膜塗佈性產生問題之傾向。另外，關於厚度，若超過5μm，則有絕緣電阻變低之傾向。薄片狀金屬粒子之長徑及厚度係利用顯微鏡等進行外觀觀察所測定之數值。The flaky metal particles used in the present invention have a long diameter of 1 to 50 μm, preferably 1 to 40 μm, and a thickness of 5 μm or less, preferably 3 μm or less. When the long diameter is less than 1 μm, the on-resistance after the connection tends to be high, and when it exceeds 50 μm, the film coating property tends to be problematic at the time of film formation. In addition, when the thickness exceeds 5 μm, the insulation resistance tends to be low. The long diameter and the thickness of the flaky metal particles are values measured by visual observation using a microscope or the like.

進而，本發明中使用之薄片狀金屬粒子如圖4所示，其係縱橫比(即，長徑L除以厚度T所得之數值)為3～150、較佳為3～100者。關於縱橫比，若超過150，則有連接後之導通電阻變高之傾向。Further, as shown in FIG. 4, the flaky metal particles used in the present invention have an aspect ratio (that is, a value obtained by dividing the long diameter L by the thickness T) by 3 to 150, preferably 3 to 100. When the aspect ratio exceeds 150, the on-resistance after the connection tends to be high.

又，該薄片狀金屬粒子係表示較太陽電池單元之受光面之第1電極、非受光面之第2電極及帯線之硬度更高者。因此，在為了形成該等電極而使用Al糊或Al蒸鍍膜之情形，亦可破壞熱壓接處理時之鋁之表面非動態膜，且可沒入至帯線中，故可確保良好之連接可靠性。Further, the flaky metal particles are higher in hardness than the first electrode of the light receiving surface of the solar cell, the second electrode of the non-light receiving surface, and the ridge. Therefore, in the case where an Al paste or an Al vapor-deposited film is used in order to form the electrodes, the surface non-dynamic film of aluminum during the thermocompression bonding treatment can be broken, and it can be immersed in the twisted wire, thereby ensuring a good connection. reliability.

本發明中，導電性接著層40中之導電粒子含有如上所述之薄片狀金屬粒子50質量%以上，較佳為60質量%以上。In the present invention, the conductive particles in the conductive adhesive layer 40 contain 50% by mass or more, preferably 60% by mass or more, of the flaky metal particles as described above.

本發明所使用之導電性接著層40中之導電粒子之含有量若過少，則連接可靠性不充分，若過多，則連接強度變得不充分，故較佳為3～30質量%，更佳為3～20質量%。When the content of the conductive particles in the conductive adhesive layer 40 used in the present invention is too small, the connection reliability is insufficient, and if the amount is too large, the connection strength is insufficient, so that it is preferably 3 to 30% by mass, more preferably It is 3 to 20% by mass.

作為構成導電性接著層40之黏合劑樹脂組成物，可自習知導電接著劑所使用之熱硬化性之黏合劑樹脂組成物中適當選擇來使用。例如可舉例：於熱硬化型環氧樹脂、熱硬化型尿素樹脂、熱硬化型三聚氰胺樹脂、熱硬化型酚醛樹脂等中混合咪唑系硬化劑、胺系硬化劑等硬化劑所成之黏合劑樹脂組成物。其中，若考慮使硬化後之接著強度良好，則使用熱硬化型環氧樹脂之黏合劑樹脂組成物可較佳地使用。The binder resin composition constituting the conductive adhesive layer 40 can be appropriately selected and used from the thermosetting adhesive resin composition used in the conventional conductive adhesive. For example, a binder resin obtained by mixing a hardening agent such as an imidazole-based curing agent or an amine-based curing agent with a thermosetting epoxy resin, a thermosetting urea resin, a thermosetting melamine resin, or a thermosetting phenol resin; Composition. Among them, in consideration of the good bonding strength after curing, a binder resin composition using a thermosetting epoxy resin can be preferably used.

作為該種熱硬化型環氧樹脂，可為液狀，亦可為固體狀，環氧當量通常為100～4000左右、且分子中含有2個以上環氧基者為佳。例如，可較佳地使用雙酚A型環氧化合物、酚醛清漆型環氧化合物、甲酚清漆型環氧化合物、酯型環氧化合物、脂環型環氧化合物等。又，該等化合物中含有單體或寡聚物。The thermosetting epoxy resin may be in the form of a liquid or a solid, and the epoxy equivalent is usually from about 100 to about 4,000, and that two or more epoxy groups are contained in the molecule. For example, a bisphenol A type epoxy compound, a novolak type epoxy compound, a cresol varnish type epoxy compound, an ester type epoxy compound, an alicyclic type epoxy compound, or the like can be preferably used. Further, these compounds contain a monomer or an oligomer.

於本發明所使用之黏合劑樹脂組成物中，視需要可含有二氧化矽、雲母等之填充劑、顏料、抗靜電劑等。亦可混合有著色料、防腐劑、聚異氰酸酯系交聯劑、矽烷偶合劑等。The binder resin composition used in the present invention may contain a filler such as cerium oxide or mica, a pigment, an antistatic agent or the like as needed. A coloring material, a preservative, a polyisocyanate crosslinking agent, a decane coupling agent, or the like may be mixed.

又，亦可混合公知之球狀或不定形狀導電粒子。若將球狀導電粒子添加至薄片狀金屬粒子中並混合，則可取得如下效果：可使導通電阻值更加穩定化，且可使薄片狀金屬粒子之使用量減少而抑制導電接著劑之製造成本。該種球狀導電粒子之大小較佳為，平均粒徑為1～10μm，且較薄片狀金屬粒子之長徑更小。又，球狀或不定形狀導電粒子之混合量較佳為薄片狀金屬粒子之混合量(重量份)之0.01～1倍。Further, a known spherical or indefinite shape conductive particle may be mixed. When the spherical conductive particles are added to and mixed with the flaky metal particles, the on-resistance value can be further stabilized, and the amount of the flaky metal particles can be reduced to suppress the production of the conductive adhesive. cost. The spherical conductive particles preferably have an average particle diameter of 1 to 10 μm and are smaller than the long diameter of the flaky metal particles. Further, the mixing amount of the spherical or irregularly shaped conductive particles is preferably 0.01 to 1 times the mixing amount (parts by weight) of the flaky metal particles.

本發明之導電性接著層40係被用作為糊狀之導電接著劑或膜狀之導電接著膜，但若其熔融黏度過低，則會因預壓接而於正式硬化之步驟中流動從而易引起連接不良或向受光面露出。即便其熔融黏度過高，於塗佈時或膜貼合時亦易產生不良，因此，於糊之情形下，以錐板型黏度計測定之25℃之黏度較佳為50～200Pa‧s，更佳為50～150Pa‧s，於膜之情形下，以錐板型黏度計測定之最低熔融黏度較佳為1×102 ～1×105 Pa‧s，更佳為1×102 ～5×104 Pa‧s。The conductive adhesive layer 40 of the present invention is used as a paste-like conductive adhesive or a film-like conductive adhesive film. However, if the melt viscosity is too low, it will flow in the step of the final hardening due to the pre-compression bonding. Causes poor connection or is exposed to the light receiving surface. Even if the melt viscosity is too high, it is liable to cause defects during coating or film bonding. Therefore, in the case of paste, the viscosity at 25 ° C measured by a cone-and-plate type viscometer is preferably 50 to 200 Pa‧s. Preferably, it is 50 to 150 Pa s. In the case of a film, the lowest melt viscosity measured by a cone-and-plate type viscometer is preferably 1 × 10 2 to 1 × 10 5 Pa ‧ s, more preferably 1 × 10 2 to 5 × 10 4 Pa‧s.

本發明中，導電性接著層40係可將導電粒子以通常方法均勻分散於熱硬化性之黏合劑樹脂組成物而構成之導電接著劑，以公知之塗佈法形成於太陽電池單元之第1電極與第2電極。又，可將於剝離基底膜上成膜導電接著劑、並經乾燥後所得之導電接著膜之導電性接著層，藉由轉印而形成於第1電極與第2電極。該種導電接著劑可提供用以將串聯複數個太陽電池單元所成之太陽電池模組中之至少一個太陽電池單元之表面電極與帯線加以連接的導電接著劑，故包含於本發明中。In the present invention, the conductive adhesive layer 40 is an electrically conductive adhesive which can be formed by uniformly dispersing conductive particles in a thermosetting adhesive resin composition by a usual method, and is formed on the first solar cell unit by a known coating method. Electrode and second electrode. Further, a conductive adhesive layer of a conductive adhesive film obtained by forming a conductive adhesive on the release base film and dried may be formed on the first electrode and the second electrode by transfer. The electrically conductive adhesive can provide an electrically conductive adhesive for connecting a surface electrode of at least one of the solar cell modules of the solar cell unit in series with a twisted wire, and is included in the present invention.

再者，關於導電性接著層40之層厚，若過薄，則填充不足，若過厚，則會於受光面上露出，因此較佳為5～50μm，更佳為10～40μm。In addition, when the thickness of the conductive adhesive layer 40 is too small, the filling is insufficient, and if it is too thick, it is exposed on the light-receiving surface. Therefore, it is preferably 5 to 50 μm, more preferably 10 to 40 μm.

作為太陽電池單元50之受光面之第1電極21、與非受光面之第2電極23，可與習知公知之太陽電池單元之匯流排條電極為相同之構成。例如，其係可藉由塗佈銀糊或Al糊並加熱而形成者。The first electrode 21 as the light receiving surface of the solar battery cell 50 and the second electrode 23 on the non-light receiving surface can be configured in the same manner as the bus bar electrode of the known solar battery cell. For example, it can be formed by coating a silver paste or an Al paste and heating it.

例如，為了儘可能減小遮蔽入射光之面積，形成於太陽電池單元50之受光面之第1電極21通常係形成為寬度約1mm之線狀。第1電極21之數量可考慮太陽電池單元之尺寸或電阻而適當設定。又，利用相同之方法，以相對於第1電極交叉之方式，遍及光電轉換元件10之受光面之大致全域，每隔約2mm而形成具有寬度約100μm左右之線狀之指狀電極22。For example, in order to reduce the area of the incident light as much as possible, the first electrode 21 formed on the light receiving surface of the solar battery cell 50 is usually formed in a line shape having a width of about 1 mm. The number of the first electrodes 21 can be appropriately set in consideration of the size or electric resistance of the solar battery cells. In the same manner, a finger electrode 22 having a linear shape having a width of about 100 μm is formed over approximately 2 mm over substantially the entire surface of the light-receiving surface of the photoelectric conversion element 10 so as to intersect with the first electrode.

又，形成於太陽電池單元50之非受光面之第2電極23及指狀電極24亦可與形成於受光面之第1電極21及指狀電極22為相同之構成。再者，由於無需考慮入射光，故非受光面之第2電極可形成為覆蓋光電轉換元件10背面之大致整個面。此時，指狀電極24成為無需。Further, the second electrode 23 and the finger electrode 24 formed on the non-light-receiving surface of the solar battery cell 50 may be configured similarly to the first electrode 21 and the finger electrode 22 formed on the light-receiving surface. Further, since it is not necessary to consider the incident light, the second electrode of the non-light-receiving surface can be formed to cover substantially the entire surface of the back surface of the photoelectric conversion element 10. At this time, the finger electrodes 24 are unnecessary.

作為帯線30，可利用習知太陽電池模組中所使用之帯線。例如可較佳地使用厚度為50～300μm之帶狀銅箔。該種帯狀銅箔視需要而可實施鍍金、鍍銀、鍍錫、鍍焊料等。As the twisted wire 30, a twisted wire used in a conventional solar battery module can be utilized. For example, a strip-shaped copper foil having a thickness of 50 to 300 μm can be preferably used. Such a copper-shaped copper foil can be subjected to gold plating, silver plating, tin plating, solder plating, or the like as needed.

如上所述，第1電極、第2電極及帯線30係使用較薄片狀金屬粒子更柔軟者。例如，當薄片狀金屬粒子係鎳粒子(莫氏硬度=3.5)時，對於第1電極、第2電極、及帯線而言，較佳為其等之至少表面係由金(莫氏硬度=2.5)、銀(莫氏硬度=2.7)、銅(莫氏硬度=3.0)、鋁(莫氏硬度=2.9)、錫(莫氏硬度=3.0)等所構成。As described above, the first electrode, the second electrode, and the twisted wire 30 are softer than the flake-shaped metal particles. For example, when the flaky metal particles are nickel particles (Mohs hardness = 3.5), it is preferable that at least the surface of the first electrode, the second electrode, and the ruthenium is gold (Mohs hardness = 2.5), silver (Mohs hardness = 2.7), copper (Mohs hardness = 3.0), aluminum (Mohs hardness = 2.9), tin (Mohs hardness = 3.0) and the like.

其次，圖1之本發明之太陽電池模組係可由如下方式而製造。Next, the solar cell module of the present invention of Fig. 1 can be manufactured as follows.

於剝離膜上，以使乾燥厚度為10～40μm之方式，塗佈使含有既定之薄片狀金屬粒子50質量%以上之導電粒子分散於環氧樹脂組成物中所成的導電接著劑，經乾燥而形成導電接著膜。On the release film, an electroconductive adhesive agent obtained by dispersing 50% by mass or more of conductive particles containing predetermined flaky metal particles in an epoxy resin composition is applied so as to have a dry thickness of 10 to 40 μm. A conductive adhesive film is formed.

使導電接著膜之導電性接著層預壓接於太陽電池單元之第1電極及第2電極，將剝離膜剝離，藉此於第1電極及第2電極上積層導電性接著層。The conductive adhesive layer of the conductive adhesive film is pre-compressed to the first electrode and the second electrode of the solar cell, and the release film is peeled off, whereby a conductive adhesive layer is laminated on the first electrode and the second electrode.

再者，亦可不使導電接著劑膜化，而是維持糊狀之狀態藉由網版印刷法等在第1電極及第2電極上形成導電性接著層。Further, the conductive adhesive layer may be formed on the first electrode and the second electrode by a screen printing method or the like without maintaining the paste of the conductive adhesive.

其次，在太陽電池單元之受光面之第1電極與相鄰的太陽電池單元之非受光面之第2電極上配置帯線，施加約0.1～5MPa之壓力，並以30～120℃進行0.2～10秒鐘之加熱，藉此進行預貼，其後施加約0.1～5MPa壓力，並以140～200℃進行10～20秒鐘之加熱，藉此進行正式壓接，藉此將複數個太陽電池單元串聯。再者，於使用糊狀導電接著劑時，亦可省略預貼步驟。Next, a twist line is placed on the second electrode of the light-receiving surface of the solar cell and the second electrode of the non-light-receiving surface of the adjacent solar cell, and a pressure of about 0.1 to 5 MPa is applied, and 0.2 to 30 to 120 ° C is applied. The pre-sticking is performed by heating for 10 seconds, and then a pressure of about 0.1 to 5 MPa is applied, and heating is performed at 140 to 200 ° C for 10 to 20 seconds, thereby performing formal pressure bonding, thereby using a plurality of solar cells. The units are connected in series. Further, when a paste-like conductive adhesive is used, the pre-sticking step may be omitted.

然後，依序積層玻璃等透光性表面保護材、EVA等密封片、串聯之複數個太陽電池單元、EVA等密封片、及背面保護材，在成為真空後，以120～150℃進行5～20分鐘之層壓。其後，以120～150℃進行30～60分鐘加熱，使之完全硬化。其後，安裝端子盒、金屬架，從而可獲得太陽電池模組。Then, a light-transmitting surface protective material such as laminated glass, a sealing sheet such as EVA, a plurality of solar battery cells connected in series, a sealing sheet such as EVA, and a back surface protective material are placed at 120 to 150 ° C after being vacuumed. 20 minutes of lamination. Thereafter, it is heated at 120 to 150 ° C for 30 to 60 minutes to completely cure it. Thereafter, the terminal box and the metal frame are mounted, so that the solar cell module can be obtained.

接下來，一邊參照圖3，一邊說明使用薄膜系太陽電池單元之本發明之太陽電池模組之一例。該種薄膜系太陽電池模組係於橫向直接連接有長帯之薄膜系光電轉換元件，於該光電轉換元件之電極上連接有電力輸出用之帯線，並視需要而如圖2所示被樹脂密封。Next, an example of a solar cell module of the present invention using a thin film solar cell will be described with reference to Fig. 3 . The thin film solar cell module is a thin film photoelectric conversion element directly connected to a lateral direction in a lateral direction, and a tantalum wire for electric power output is connected to an electrode of the photoelectric conversion element, and is as shown in FIG. 2 as needed. Resin sealed.

圖3之薄膜系太陽電池模組100具有以下結構：於基材38上，由薄膜光電轉換元件構成之薄膜系太陽電池單元32係串聯排列於平面方向，且在其中的一個末端之太陽電池單元32c之表面電極(未圖示)、與另一個末端之太陽電池單元32d之表面電極(未圖示)上，經由接著劑而連接有電力輸出用之帯線34。可使用薄膜系太陽電池單元32，且於太陽電池單元彼此之連接可不使用帯線，除此以外之構成原則上係與利用圖1所說明之晶體系太陽電池模組之情形相同。The thin film solar cell module 100 of FIG. 3 has a structure in which a thin film solar cell unit 32 composed of a thin film photoelectric conversion element is arranged in a planar direction and a solar cell at one end thereof is formed on a substrate 38. A surface electrode (not shown) of 32c and a surface electrode (not shown) of the solar cell 32d at the other end are connected to a twist line 34 for electric power output via an adhesive. The thin film solar cell unit 32 can be used, and the solar cell units can be connected to each other without using a twisted wire, and the other configuration is basically the same as in the case of the crystalline solar cell module described with reference to Fig. 1 .

該種薄膜系太陽電池模組係可藉由以下方法製造：在一個末端之太陽電池單元32c之表面電極(未圖示)、與另一個末端之太陽電池單元32d之表面電極(未圖示)上，將電力輸出用之帯線34經由圖1之晶體系太陽電池模組中所說明之接著劑而以室溫加壓或低溫(約30～120℃)加壓之方式進行預貼，並以較高之溫度(約140～200℃)進行正式壓接。The thin film solar cell module can be manufactured by the surface electrode (not shown) of the solar cell unit 32c at one end and the surface electrode (not shown) of the solar cell unit 32d at the other end. The wire 34 for electric power output is pre-applied by pressurization at room temperature or low temperature (about 30 to 120 ° C) via the adhesive described in the solar cell module of the crystal system of FIG. 1 . The final crimping is performed at a relatively high temperature (about 140 to 200 ° C).

另外，準備複數個由上述方式所獲得之太陽電池模組，製作出將其等串聯之太陽電池串，進而，準備複數個該種太陽電池串，將其等並聯，藉此可獲得太陽電池陣列。Further, a plurality of solar battery modules obtained by the above-described methods are prepared, and a solar battery string in which the batteries are connected in series is prepared, and a plurality of such solar battery strings are prepared, and the solar battery strings are connected in parallel, thereby obtaining a solar battery array. .

再者，本發明中使用之導電接著劑，即，用以將串聯複數個太陽電池單元所成之太陽電池模組中之至少一個太陽電池單元之表面電極與帯線加以連接的導電接著劑，亦為本發明之一部分，其特徵在於，於黏合劑樹脂組成物分散有導電粒子，導電粒子之50質量%以上係薄片狀金屬粒子，該薄片狀金屬粒子具有1～50μm之長徑、5μm以下之厚度、3～150之縱橫比(=長徑/厚度)，且具有高於表面電極及帯線之硬度。具體的構成如上所述。Furthermore, the conductive adhesive used in the present invention, that is, the conductive adhesive for connecting the surface electrode of at least one of the solar battery modules of the solar battery unit in series with the twisted wire, In addition, the conductive resin particles are dispersed in the binder resin composition, and 50% by mass or more of the conductive particles are flake-shaped metal particles having a long diameter of 1 to 50 μm and a thickness of 5 μm or less. The thickness, the aspect ratio of 3 to 150 (=long diameter/thickness), and the hardness higher than the surface electrode and the twist line. The specific configuration is as described above.

實施例Example

以下，舉出實施例及比較例來對本發明之太陽電池模組進行具體說明，但本發明並不限定於下述實施例中所示者，在不變更其主旨之範圍內，可實施適當之變更。Hereinafter, the solar cell module of the present invention will be specifically described by way of examples and comparative examples. However, the present invention is not limited to the examples shown in the following examples, and may be implemented without departing from the scope of the invention. change.

實施例1Example 1

(1)導電接著膜之製作(1) Production of conductive adhesive film

將含有長徑1～20μm、厚度3μm以下、縱橫比3～50之鱗片狀Ni粒子(莫氏硬度3.8)50質量%以上的導電粒子10重量份、雙A型環氧樹脂(EP828，Japan Epoxy Resin(股))50重量份、苯氧基樹脂(YP-50，東都化成(股))20重量份、及咪唑系潛伏性硬化劑(HX3941HP，旭化成(股))20重量份、進而甲苯100重量份加以混合，調製導電接著劑。10 parts by weight of conductive particles containing scaly Ni particles (Mohs hardness 3.8) having a long diameter of 1 to 20 μm, a thickness of 3 μm or less, an aspect ratio of 3 to 50, 50% by mass or more, and a double-type epoxy resin (EP828, Japan Epoxy) 50 parts by weight of Resin, 20 parts by weight of phenoxy resin (YP-50, Dongdu Chemical Co., Ltd.), and 20 parts by weight of an imidazole-based latent curing agent (HX3941HP, Asahi Kasei Co., Ltd.), and further toluene 100 The parts by weight are mixed to prepare a conductive adhesive.

將所獲得之導電接著劑於厚度50μm之剝離處理聚對苯二甲酸乙二酯膜上塗佈成25μm厚度，並於80℃之爐中進行5分鐘之加熱乾燥處理而成膜，藉此製作出導電接著膜。The obtained conductive adhesive was applied to a release-treated polyethylene terephthalate film having a thickness of 50 μm to a thickness of 25 μm, and heat-dried in an oven at 80° C. for 5 minutes to form a film. The conductive film is discharged.

(2)太陽電池模組模型之製作(2) Production of solar battery module model

(2a)準備大小為縱80 mm、橫15 mm、厚0.7 mm之以下3種玻璃板作為光電轉換元件之替代物：(2a) Prepare three glass plates of the following size: 80 mm in length, 15 mm in width, and 0.7 mm in thickness as substitutes for photoelectric conversion elements:

(2ai)準備設置有厚度150～200 nm之銦鈦複合氧化物層之ITO固態玻璃板來作為電極。ITO表面之莫氏硬度為4以上。又，電極表面之粗糙度為0.2 μm以下。(2ai) An ITO solid glass plate having an indium-titanium composite oxide layer having a thickness of 150 to 200 nm was prepared as an electrode. The Mohs hardness of the ITO surface is 4 or more. Further, the surface roughness of the electrode is 0.2 μm or less.

(2aii)準備設置有厚度500 nm之鋁蒸鍍膜之Al固態玻璃板來作為電極。Al表面之莫氏硬度為2.9。又，電極表面之粗糙度為0.2 μm以下。再者，於鋁之表面形成有堅固的非動態膜。(2aii) An Al solid glass plate provided with an aluminum vapor-deposited film having a thickness of 500 nm was prepared as an electrode. The Mohs hardness of the Al surface was 2.9. Further, the surface roughness of the electrode is 0.2 μm or less. Furthermore, a strong non-dynamic film is formed on the surface of the aluminum.

(2aiii)準備設置有厚度5 μm之Ag糊燒成膜之Ag固態玻璃板來作為電極。Ag表面之莫氏硬度為2.7。又，電極表面之粗糙度為4 μm以下。再者，於Ag之表面形成有弱氧化膜。(2aiii) An Ag solid glass plate provided with an Ag paste-fired film having a thickness of 5 μm was prepared as an electrode. The Mohs hardness of the Ag surface was 2.7. Further, the surface roughness of the electrode is 4 μm or less. Further, a weak oxide film is formed on the surface of Ag.

(2b)另一方面，作為帯線，準備以下2種帯線。(2b) On the other hand, as the twist line, the following two types of twist lines are prepared.

(2bi)準備已於厚度150 μm之銅箔上實施SnAgCu焊料浸漬電鍍(電鍍厚40 μm)之焊料被覆銅帯。表面之莫氏硬度為3以下。(2bi) A solder-coated copper ruthenium having a SnAgCu solder immersion plating (plating thickness: 40 μm) was prepared on a copper foil having a thickness of 150 μm. The surface has a Mohs hardness of 3 or less.

(2bii)將厚度150 μm之無垢銅帯用作帯線。表面之莫氏硬度為3。(2bii) A scale-free copper crucible having a thickness of 150 μm is used as the twist line. The surface has a Mohs hardness of 3.

(2c)將導電接著膜之導電性接著層熱壓接於光電轉換元件之替代物之電極層的12個部位(連接面積2 mm見方，180℃，3MPa，15秒)，藉此製作太陽電池模組模型。對所獲得之太陽電池模組模型，以四端子法測定最大電阻值與最小電阻值，進而計算平均電阻值，並以下表1中所示之基準對平均電阻值進行評估。將所得之結果示於表2。(2c) The conductive bonding layer of the conductive adhesive film is thermocompression bonded to 12 portions of the electrode layer of the substitute of the photoelectric conversion element (connection area: 2 mm square, 180 ° C, 3 MPa, 15 seconds), thereby producing a solar cell Module model. For the obtained solar cell module model, the maximum resistance value and the minimum resistance value were measured by a four-terminal method, and the average resistance value was calculated, and the average resistance value was evaluated by the reference shown in Table 1 below. The results obtained are shown in Table 2.

實施例2Example 2

作為鱗片狀Ni粒子，其長徑為20～40μm，厚度為3μm以下，縱橫比為50～100，使用含有50質量%以上之該鱗片狀Ni粒子(莫氏硬度3.8)之導電粒子，除此以外，反覆進行實施例1之操作，藉此製作出導電接著膜、太陽電池模組模型。對所獲得之太陽電池模組模型，以四端子法測定最大電阻值與最小抵杭值，進而計算平均電阻值，並以相同之基準進行評估。將所得之結果示於表2。The flaky Ni particles have a long diameter of 20 to 40 μm, a thickness of 3 μm or less, and an aspect ratio of 50 to 100. The conductive particles containing 50% by mass or more of the scaly Ni particles (Mohs hardness of 3.8) are used. In addition, the operation of Example 1 was repeated to prepare a conductive adhesive film and a solar cell module model. For the obtained solar cell module model, the maximum resistance value and the minimum resistance value were measured by a four-terminal method, and then the average resistance value was calculated and evaluated on the same basis. The results obtained are shown in Table 2.

實施例3Example 3

作為鱗片狀Ni粒子，其長徑為40～50μm，厚度為3μm以下，縱橫比為100～150，使用含有50質量%以上之該鱗片狀Ni粒子(莫氏硬度3.8)之導電粒子，除此以外，反覆進行實施例1之操作，藉此製作出導電接著膜、太陽電池模組模型。對所獲得之太陽電池模組模型，以四端子法測定最大電阻值與最小電阻值，進而計算平均電阻值，並以相同之基準進行評估。將所得之結果示於表2。The flaky Ni particles have a long diameter of 40 to 50 μm, a thickness of 3 μm or less, and an aspect ratio of 100 to 150, and conductive particles containing 50% by mass or more of the scaly Ni particles (Mohs hardness of 3.8) are used. In addition, the operation of Example 1 was repeated to prepare a conductive adhesive film and a solar cell module model. For the obtained solar cell module model, the maximum resistance value and the minimum resistance value were measured by a four-terminal method, and the average resistance value was calculated and evaluated on the same basis. The results obtained are shown in Table 2.

比較例1Comparative example 1

替代鱗片狀Ni粒子，使用平均粒徑10μm之球狀Ni粒子(莫氏硬度3.8)，除此以外，反覆進行實施例1之操作，藉此製作出導電接著膜、太陽電池模組模型。對所獲得之太陽電池模組模型，以四端子法測定最大電阻值與最小電阻值，進而計算平均電阻值，並以相同之基準進行評估。將所得之結果示於表2。In addition to the spherical Ni particles having an average particle diameter of 10 μm (Mohs hardness of 3.8), the operation of Example 1 was repeated instead of the scaly Ni particles, thereby producing a conductive adhesive film and a solar cell module model. For the obtained solar cell module model, the maximum resistance value and the minimum resistance value were measured by a four-terminal method, and the average resistance value was calculated and evaluated on the same basis. The results obtained are shown in Table 2.

比較例2Comparative example 2

替代鱗片狀Ni粒子，使用平均粒徑10μm之球狀焊料粒子(莫氏硬度2以下)，除此以外，反覆進行實施例1之操作，藉此製作出導電接著膜、太陽電池模組模型。對所獲得之太陽電池模組模型，以四端子法測定最大電阻值與最小電阻值，進而計算平均電阻值，並以相同之基準進行評估。將所得之結果示於表2。In place of the scaly Ni particles, spherical solder particles having an average particle diameter of 10 μm (Mohs hardness of 2 or less) were used, and the operation of Example 1 was repeated, thereby producing a conductive adhesive film and a solar cell module model. For the obtained solar cell module model, the maximum resistance value and the minimum resistance value were measured by a four-terminal method, and the average resistance value was calculated and evaluated on the same basis. The results obtained are shown in Table 2.

由表2可知，將具有特定範圍之長徑、厚度、縱橫比之扁平的薄片狀金屬粒子作為導電粒子，於使用含有該導電粒子之導電接著膜之實施例1～3的太陽電池模組模型中，在通常設置於光電轉換元件上之電極材料(ITO電極、Al蒸鍍電極、銀糊電極)、與通常在將太陽電池單元彼此連接時所使用之帯線(SnAgCu焊料被覆銅帶、無垢銅帶)之間，藉由熱壓接處理而可確保良好之可靠性並進行連接。可知，其中縱橫比為3～50(但不含50)，較佳為50～100之情形。As can be seen from Table 2, a solar cell module model of Examples 1 to 3 using a flat flaky metal particle having a long diameter, a thickness, and an aspect ratio of a specific range as a conductive particle and a conductive adhesive film containing the conductive particle was used. Among them, an electrode material (ITO electrode, Al vapor deposition electrode, silver paste electrode) which is usually provided on a photoelectric conversion element, and a twisted wire (SnAgCu solder-coated copper tape, which is usually used when the solar cell units are connected to each other) Between the copper strips, good reliability and connection can be ensured by thermocompression bonding. It can be seen that the aspect ratio is from 3 to 50 (but not including 50), preferably from 50 to 100.

另一方面，於替代扁平的薄片狀金屬粒子之球狀之導電金屬粒子中，於使用較硬的球狀Ni粒子之比較例1之情形，熱壓接時球狀Ni粒子難以變形。此係由於存在有粒徑較大之大粒子，故可推定粒徑較小之粒子無助於連接。因此，在使用ITO作為電極材料時，導適可靠性之評估為C，但在使用電極材料較為柔軟之Ag糊電極時，銀糊電極側會變形成使球狀Ni粒子陷入至銀糊電極側，由此可知導通可靠性不存在問題。又，在使用於表面形成有堅固的非動態膜之鋁糊電極時，亦可破壞熱壓接時之非動態膜，由此可知導通可靠性不存在問題。On the other hand, in the case of the spherical conductive metal particles in which the flat flaky metal particles were replaced, in the case of Comparative Example 1 in which the hard spherical Ni particles were used, the spherical Ni particles were hardly deformed at the time of thermocompression bonding. Since there are large particles having a large particle diameter, it is presumed that particles having a small particle diameter do not contribute to the connection. Therefore, when ITO is used as the electrode material, the evaluation of the conductivity reliability is C. However, when the Ag paste electrode having a soft electrode material is used, the silver paste electrode side is deformed to cause the spherical Ni particles to sink to the silver paste electrode side. Therefore, it can be seen that there is no problem in the conduction reliability. Further, when an aluminum paste electrode having a strong non-dynamic film formed on its surface is used, the non-dynamic film at the time of thermocompression bonding can be broken, and it is understood that there is no problem in conduction reliability.

於替代扁平的薄片狀金屬粒子之球狀之導電金屬粒子中，於使用較柔軟的球狀焊料粒子之比較例2之情形，熱壓接時其本身會變形，故在使用ITO作為電極材料時、及在使用銀糊電極作為電極材料時，導通可靠性不存在問題。然而，在使用於表面形成有堅固的非動態膜之鋁糊電極時，無法破壞熱壓接時之非動態膜，導通可靠性存在問題。In the case of the spherical conductive metal particles in which the flat flaky metal particles are replaced, in the case of Comparative Example 2 in which the soft spherical solder particles are used, the thermocompression bonding itself is deformed, so when ITO is used as the electrode material. When the silver paste electrode is used as the electrode material, there is no problem in the conduction reliability. However, when it is used for an aluminum paste electrode having a strong non-dynamic film formed on its surface, the non-dynamic film at the time of thermocompression bonding cannot be broken, and there is a problem in conduction reliability.

本發明之太陽電池模組中，作為電極與帯線之接合材料，係使用連接導電接著膜，進而作為混合於其中之導電粒子，其至少50質量%以上係使用具有1～50μm之長徑、5μm以下之厚度、3～150之縱橫比的薄片狀金屬粒子。因此，無論太陽電池單元之電極之表面凹凸的有無，皆可確保良好之連接可靠性。又，該薄片狀金屬粒子具有較表面電極及帯線更高之硬度。從而，在為了形成該等電極而使用Al糊或Al蒸鍍膜之情形，亦可破壞熱壓接處理時鋁之表面非動態膜，可確保良好之連接可靠性。In the solar cell module of the present invention, as a bonding material between the electrode and the ruthenium, a conductive adhesive film is used, and as a conductive particle mixed therein, at least 50% by mass or more of the long diameter of 1 to 50 μm is used. Flaky metal particles having a thickness of 5 μm or less and an aspect ratio of 3 to 150. Therefore, good connection reliability can be ensured regardless of the presence or absence of surface irregularities of the electrodes of the solar cell. Further, the flaky metal particles have a higher hardness than the surface electrodes and the ruthenium wires. Therefore, in the case where an Al paste or an Al vapor-deposited film is used for forming the electrodes, the surface non-dynamic film of aluminum during the thermocompression bonding treatment can be broken, and good connection reliability can be ensured.

10．．．光電轉換元件10. . . Photoelectric conversion element

21．．．第1電極twenty one. . . First electrode

22,24．．．指狀電極22,24. . . Finger electrode

23．．．第2電極twenty three. . . Second electrode

30,34．．．帯線30,34. . .帯 line

32．．．薄膜系太陽電池單元32. . . Thin film solar cell

38．．．基材38. . . Substrate

40．．．導電性接著層40. . . Conductive adhesive layer

50．．．太陽電池單元50. . . Solar battery unit

100．．．太陽電池模組100. . . Solar battery module

200．．．金屬架200. . . metal rack

201．．．透光性表面保護材201. . . Translucent surface protection material

202．．．背面保護材202. . . Back protection material

203．．．透光性密封材203. . . Translucent sealing material

圖1係本發明之太陽電池模組之概略部分截面圖。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic partial cross-sectional view showing a solar battery module of the present invention.

圖2係本發明之太陽電池模組之概略整體截面圖。2 is a schematic overall cross-sectional view of a solar cell module of the present invention.

圖3係本發明之太陽電池模組之概略俯視圖。3 is a schematic plan view of a solar cell module of the present invention.

圖4係薄片狀金屬粒子之概略立體圖。Fig. 4 is a schematic perspective view of a flaky metal particle.

10．．．光電轉換元件10. . . Photoelectric conversion element

21．．．第1電極twenty one. . . First electrode

22,24．．．指狀電極22,24. . . Finger electrode

23．．．第2電極twenty three. . . Second electrode

30．．．帯線30. . .帯 line

40．．．導電性接著層40. . . Conductive adhesive layer

50．．．太陽電池單元50. . . Solar battery unit

100．．．太陽電池模組100. . . Solar battery module

Claims (6)

一種太陽電池模組，係複數個太陽電池單元串聯而成，至少一個太陽電池單元之表面電極與帯線電氣連接，其特徵在於：該太陽電池單元之表面電極與帯線係使用已將導電粒子分散於黏合劑樹脂組成物而構成之導電接著層以熱壓接處理連接；該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，且該導電粒子具有高於太陽電池單元之表面電極及帯線之硬度。 A solar cell module in which a plurality of solar cells are connected in series, and at least one surface electrode of the solar cell is electrically connected to the wire, wherein the surface electrode of the solar cell and the wire are used to conduct conductive particles. The conductive adhesive layer which is formed by dispersing the binder resin composition is connected by a thermocompression bonding treatment; 50% by mass or more of the conductive particles are flaky nickel particles, and the flaky nickel particles have a long diameter of 1 to 20 μm and a thickness of 3 μm or less. Thickness, aspect ratio of 3~50 (=long diameter/thickness), or long diameter of 20~40μm and aspect ratio of 50~100 (=long diameter/thickness), and the conductive particles have higher than solar cell The hardness of the surface electrode and the twisted wire. 一種太陽電池模組之製造方法，該太陽電池模組，係複數個太陽電池單元串聯，至少一個太陽電池單元之表面電極與帯線連接，其特徵在於，具有：於該太陽電池單元之表面電極上積層將導電粒子分散於黏合劑樹脂組成物而構成之導電性接著層之步驟，此處，該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，且該導電粒子具有高於太陽電池單元之表面電極及帯線之硬度；於該導電性接著層上配置帯線之步驟；以及自該導電性接著層上之帯線側以熱壓接處理將太陽電 池單元之表面電極與帯線電氣連接之步驟。 A solar cell module manufacturing method, wherein a plurality of solar cell units are connected in series, and a surface electrode of at least one solar cell unit is connected to a 帯 line, and is characterized in that: a surface electrode of the solar cell unit a step of dispersing the conductive particles in the conductive adhesive layer by dispersing the conductive particles in the adhesive resin composition. Here, 50% by mass or more of the conductive particles are flaky nickel particles, and the flaky nickel particles have a length of 1 to 20 μm. Diameter, thickness of 3 μm or less, aspect ratio of 3 to 50 (=long diameter/thickness), or long diameter of 20 to 40 μm and aspect ratio of 50 to 100 (=long diameter/thickness), and the conductive particles have high a hardness of a surface electrode and a tantalum wire of the solar cell; a step of disposing a tantalum wire on the conductive adhesive layer; and thermoelectric bonding from the side of the conductive layer on the conductive bonding layer to heat the solar cell The step of electrically connecting the surface electrode of the cell unit to the wire. 一種太陽電池模組，係複數個太陽電池單元串聯而成，至少一個太陽電池單元之表面電極與帯線電氣連接，其特徵在於：該太陽電池單元之表面電極與帯線係使用已將導電粒子分散於黏合劑樹脂組成物而構成之導電接著層以熱壓接處理連接；該太陽電池單元之表面電極係由鋁形成；該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，且該導電粒子具有高於太陽電池單元之表面電極及帯線之硬度。 A solar cell module in which a plurality of solar cells are connected in series, and at least one surface electrode of the solar cell is electrically connected to the wire, wherein the surface electrode of the solar cell and the wire are used to conduct conductive particles. The conductive adhesive layer formed by dispersing the binder resin composition is connected by thermocompression bonding; the surface electrode of the solar cell is made of aluminum; and 50% by mass or more of the conductive particles are flaky nickel particles, and the flaky nickel The particles have a long diameter of 1 to 20 μm, a thickness of 3 μm or less, an aspect ratio of 3 to 50 (=long diameter/thickness), or a long diameter of 20 to 40 μm and an aspect ratio of 50 to 100 (=long diameter/thickness) And the conductive particles have a hardness higher than that of the surface electrode and the tantalum of the solar cell. 一種太陽電池模組之製造方法，該太陽電池模組，係複數個太陽電池單元串聯，至少一個太陽電池單元之表面電極與帯線連接，其特徵在於，具有：於該太陽電池單元之表面電極上積層將導電粒子分散於黏合劑樹脂組成物而構成之導電性接著層之步驟，此處，該太陽電池單元之表面電極係由鋁形成；該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，且該導電粒子具有高於太陽電池單元之表面電極及帯線之硬度； 於該導電性接著層上配置帯線之步驟；以及自該導電性接著層上之帯線側以熱壓接處理將太陽電池單元之表面電極與帯線電氣連接之步驟。 A solar cell module manufacturing method, wherein a plurality of solar cell units are connected in series, and a surface electrode of at least one solar cell unit is connected to a 帯 line, and is characterized in that: a surface electrode of the solar cell unit a step of dispersing conductive particles in a conductive adhesive layer formed by dispersing conductive particles in a binder resin composition. Here, the surface electrode of the solar cell is made of aluminum; and 50% by mass or more of the conductive particles are flaky nickel particles. The flaky nickel particles have a long diameter of 1 to 20 μm, a thickness of 3 μm or less, an aspect ratio of 3 to 50 (=long diameter/thickness), or a long diameter of 20 to 40 μm and an aspect ratio of 50 to 100 (= Long diameter/thickness), and the conductive particles have a hardness higher than that of the surface electrode and the tantalum of the solar cell; a step of disposing a twist line on the conductive adhesive layer; and a step of electrically connecting the surface electrode of the solar cell unit to the twist line by thermocompression bonding from the side of the twist line on the conductive adhesive layer. 一種太陽電池模組，係複數個太陽電池單元串聯而成，至少一個太陽電池單元之表面電極與帯線電氣連接，其特徵在於：該太陽電池單元之表面電極與帯線係使用已將導電粒子分散於黏合劑樹脂組成物而構成之導電接著層以熱壓接處理連接；該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，該導電粒子具有高於太陽電池單元之表面電極及帯線之硬度；且該導電粒子破壞表面電極之非動態膜，沒入至帯線。 A solar cell module in which a plurality of solar cells are connected in series, and at least one surface electrode of the solar cell is electrically connected to the wire, wherein the surface electrode of the solar cell and the wire are used to conduct conductive particles. The conductive adhesive layer which is formed by dispersing the binder resin composition is connected by a thermocompression bonding treatment; 50% by mass or more of the conductive particles are flaky nickel particles, and the flaky nickel particles have a long diameter of 1 to 20 μm and a thickness of 3 μm or less. Thickness, aspect ratio of 3~50 (=long diameter/thickness), or long diameter of 20~40μm and aspect ratio of 50~100 (=long diameter/thickness), the conductive particles have higher surface than solar cell The hardness of the electrode and the twisted wire; and the conductive particle destroys the non-dynamic film of the surface electrode and immersed in the twisted wire. 一種太陽電池模組之製造方法，該太陽電池模組，係複數個太陽電池單元串聯，至少一個太陽電池單元之表面電極與帯線連接，其特徵在於，具有：於該太陽電池單元之表面電極上積層將導電粒子分散於黏合劑樹脂組成物而構成之導電性接著層之步驟，此處，該導電粒子之50質量%以上係薄片狀鎳粒子，該薄片狀鎳粒子具有1~20μm之長徑，3μm以下之厚度，3~50之縱橫比(=長徑/厚度)，或者具有20~40μm之長徑與50~100之縱橫比(=長徑/厚度)，且該導電粒子具有高 於太陽電池單元之表面電極及帯線之硬度；於該導電性接著層上配置帯線之步驟；以及自該導電性接著層上之帯線側以熱壓接處理，以該導電粒子破壞表面電極之非動態膜並沒入至帯線，將太陽電池單元之表面電極與帯線電氣連接之步驟。 A solar cell module manufacturing method, wherein a plurality of solar cell units are connected in series, and a surface electrode of at least one solar cell unit is connected to a 帯 line, and is characterized in that: a surface electrode of the solar cell unit a step of dispersing the conductive particles in the conductive adhesive layer by dispersing the conductive particles in the adhesive resin composition. Here, 50% by mass or more of the conductive particles are flaky nickel particles, and the flaky nickel particles have a length of 1 to 20 μm. Diameter, thickness of 3 μm or less, aspect ratio of 3 to 50 (=long diameter/thickness), or long diameter of 20 to 40 μm and aspect ratio of 50 to 100 (=long diameter/thickness), and the conductive particles have high a hardness of a surface electrode and a tantalum wire of the solar cell; a step of disposing a tantalum wire on the conductive adhesive layer; and a thermocompression bonding process from the side of the tantalum wire on the conductive adhesive layer to destroy the surface with the conductive particle The step of electrically connecting the surface electrode of the solar cell unit to the 帯 line by the non-dynamic film of the electrode does not enter the 帯 line.
TW099110298A 2009-04-21 2010-04-02 Solar cell module and manufacturing method thereof TWI482293B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009102637A JP5446420B2 (en) 2009-04-21 2009-04-21 Solar cell module and manufacturing method thereof

Publications (2)

Publication Number Publication Date
TW201044611A TW201044611A (en) 2010-12-16
TWI482293B true TWI482293B (en) 2015-04-21

Family

ID=43010986

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099110298A TWI482293B (en) 2009-04-21 2010-04-02 Solar cell module and manufacturing method thereof

Country Status (4)

Country Link
JP (1) JP5446420B2 (en)
KR (1) KR101403077B1 (en)
TW (1) TWI482293B (en)
WO (1) WO2010122863A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5707110B2 (en) * 2010-11-26 2015-04-22 デクセリアルズ株式会社 Conductive adhesive material, solar cell module and manufacturing method thereof
JP2012119441A (en) * 2010-11-30 2012-06-21 Sony Chemical & Information Device Corp Solar cell module and method for manufacturing the same
JP2012134458A (en) * 2010-12-01 2012-07-12 Sony Chemical & Information Device Corp Thin film solar cell module and manufacturing method of the same
TWI510594B (en) * 2011-01-27 2015-12-01 Hitachi Chemical Co Ltd Conductive adhesive paste, metal wire with conductive adhesive composition connecting body and solar battery module and fabricating method thereof
JP5900350B2 (en) * 2011-01-27 2016-04-06 日立化成株式会社 Conductive adhesive composition, connector and solar cell module
JP5900349B2 (en) * 2011-01-27 2016-04-06 日立化成株式会社 Conductive adhesive composition, connector and solar cell module
KR101211730B1 (en) * 2011-04-04 2012-12-12 엘지이노텍 주식회사 Solar cell module and manufacturing method thereof
JP6021138B2 (en) * 2011-05-27 2016-11-09 デクセリアルズ株式会社 Solar cell module, method for manufacturing solar cell module, and tab wire for thin film solar cell
KR101816163B1 (en) * 2011-06-14 2018-01-08 엘지전자 주식회사 Solar cell module
WO2013031702A1 (en) * 2011-08-26 2013-03-07 旭化成イーマテリアルズ株式会社 Method for manufacturing solar cell connecting structure
JP2013045994A (en) * 2011-08-26 2013-03-04 Dexerials Corp Conductive adhesive for solar cell, connection method using the same, solar cell module, and manufacturing method of solar cell module
CN103258886A (en) * 2012-02-20 2013-08-21 稳懋半导体股份有限公司 Solar cell soft board modular structure and manufacturing method of solar cell soft board modular structure
JP2013195142A (en) * 2012-03-16 2013-09-30 Dexerials Corp Solar cell output measuring method and solar cell output measuring tool
JP5889738B2 (en) 2012-07-10 2016-03-22 デクセリアルズ株式会社 Solar cell module and manufacturing method thereof
JP6236896B2 (en) * 2013-06-11 2017-11-29 日立化成株式会社 Solar cell module
KR101776395B1 (en) 2015-08-28 2017-09-08 현대자동차주식회사 Head lamp module for vehicle
JP7137895B2 (en) * 2019-04-24 2022-09-15 京セラ株式会社 Conductive Adhesive Sheet, Method for Manufacturing Conductive Adhesive Sheet, and Semiconductor Device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200733405A (en) * 2006-01-31 2007-09-01 Sanyo Electric Co Solar battery element and solar battery module
TW200811265A (en) * 2006-08-29 2008-03-01 Hitachi Chemical Co Ltd Conductive bonding film and solar cell module
TW200816502A (en) * 2006-09-28 2008-04-01 Sanyo Electric Co Solar battery module
TW200834943A (en) * 2006-11-29 2008-08-16 Sanyo Electric Co Solar cell module

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10273639A (en) * 1997-03-31 1998-10-13 Kyocera Corp Electroconductive heat resistant adhesive, heater by using the same and heat roller for fixing
JP2004010828A (en) * 2002-06-10 2004-01-15 Ricoh Co Ltd Electric conductive adhesive and electronic part
JP2007019106A (en) * 2005-07-05 2007-01-25 Kyocera Chemical Corp Conductive paste for forming electrode, and photovoltaic cell
JP2007214533A (en) * 2006-01-16 2007-08-23 Hitachi Chem Co Ltd Conductive bonding film and solar cell module
JP4900674B2 (en) * 2006-06-23 2012-03-21 住友電気工業株式会社 Anisotropic conductive film and method for manufacturing electronic device using the same
JP5380810B2 (en) * 2007-09-28 2014-01-08 三洋電機株式会社 Solar cell module
JP2009302327A (en) * 2008-06-13 2009-12-24 Sharp Corp Connection structure of wiring member, solar-battery module comprising the same, and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200733405A (en) * 2006-01-31 2007-09-01 Sanyo Electric Co Solar battery element and solar battery module
TW200811265A (en) * 2006-08-29 2008-03-01 Hitachi Chemical Co Ltd Conductive bonding film and solar cell module
TW200816502A (en) * 2006-09-28 2008-04-01 Sanyo Electric Co Solar battery module
TW200834943A (en) * 2006-11-29 2008-08-16 Sanyo Electric Co Solar cell module

Also Published As

Publication number Publication date
JP2010258006A (en) 2010-11-11
KR101403077B1 (en) 2014-06-03
TW201044611A (en) 2010-12-16
WO2010122863A1 (en) 2010-10-28
KR20120007008A (en) 2012-01-19
JP5446420B2 (en) 2014-03-19

Similar Documents

Publication Publication Date Title
TWI482293B (en) Solar cell module and manufacturing method thereof
US9748413B2 (en) Solar cell module
JP5415396B2 (en) Solar cell module manufacturing method and solar cell module
CN108323213B (en) Photovoltaic module interconnection joint
EP2690671A1 (en) Solar cell module, manufacturing method for solar cell module, and reel-wound body with tab wire wound therearound
JP5892584B2 (en) Solar cell module and method for manufacturing solar cell module
TW201327845A (en) Solar cell module manufacturing method, solar cell module, and tab wire connection method
KR20130036326A (en) Solar cell module and method for manufacturing solar cell module
EP2579324A1 (en) Solar cell module and method for manufacturing same
TWI565784B (en) Electrically conductive adhesive, solar battery module, and method for producing the solar battery module
CN103314453B (en) The manufacture method of solar module and solar module
JP5759220B2 (en) Solar cell module and method for manufacturing solar cell module
TWI537985B (en) A conductive adhesive for a solar cell and a method of connecting the solar cell module and a solar cell module using the same
JP5692347B2 (en) Conductive adhesive
JP2011222744A (en) Tab wire for connecting solar battery, connection method and solar battery module
JP2008085227A (en) Solar battery module
WO2013154188A1 (en) Solar cell
JP5617857B2 (en) Manufacturing method of solar cell module
JP2016001765A (en) Solar cell module and manufacturing method of the solar cell module
JP2016195201A (en) Conductive adhesive paste, and solar cell module and method of manufacturing the same
JP2010021594A (en) Solar battery module