JP2008282944A - Solar cell module and manufacturing method - Google Patents
Solar cell module and manufacturing method Download PDFInfo
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- JP2008282944A JP2008282944A JP2007125263A JP2007125263A JP2008282944A JP 2008282944 A JP2008282944 A JP 2008282944A JP 2007125263 A JP2007125263 A JP 2007125263A JP 2007125263 A JP2007125263 A JP 2007125263A JP 2008282944 A JP2008282944 A JP 2008282944A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 63
- 239000011521 glass Substances 0.000 claims abstract description 60
- 239000010409 thin film Substances 0.000 claims abstract description 58
- 239000006059 cover glass Substances 0.000 claims abstract description 47
- 239000000945 filler Substances 0.000 claims abstract description 23
- 239000010408 film Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 7
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 20
- 229920005989 resin Polymers 0.000 description 20
- 239000000463 material Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
- Y02E10/541—CuInSe2 material PV 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
本発明は、ＣＩＳ（ＣｕＩｎＳｅ2 系であってCIS,CIGS、CIGSS等を含む総称）系薄膜太陽電池モジュールに関する技術であって、フレームレスの太陽電池モジュールとして好適な技術に関する。 The present invention relates to a technology relating to a CIS (CuInSe2 system and generic name including CIS, CIGS, CIGSS, etc.) thin film solar cell module, and a technology suitable as a frameless solar cell module.
従来からＣＩＳ系薄膜太陽電池モジュールは、サブストレートとして基板表面に金属裏面電極層、ｐ形光吸収層、高抵抗バッファ層、ｎ形窓層（透明導電膜）などの各層を積層してＣＩＳ系薄膜太陽電池モジュールを構成し、その上にＥＶＡ（Ethylence-Vinyl Acetate）樹脂などの充填材をいれて、上面のカバーガラスをラミネートして取り付け、これをアルミなどのフレームで囲って太陽電池モジュールの端部をカバーしている。このように、フレームにより端部を囲うことで、カバーガラスの端部から水などの湿分が侵入することを防止し、耐候性を高めている。 Conventionally, CIS-based thin-film solar cell modules are formed by laminating various layers such as a metal back electrode layer, a p-type light absorption layer, a high-resistance buffer layer, and an n-type window layer (transparent conductive film) on the substrate surface as a substrate. A thin film solar cell module is constructed, and a filler such as EVA (Ethylence-Vinyl Acetate) resin is put on it, and a cover glass on the top surface is laminated and attached. Covers the edge. Thus, by surrounding the end portion with the frame, moisture such as water is prevented from entering from the end portion of the cover glass, and the weather resistance is improved.
一方、太陽電池モジュールの軽量化、製造コストの低減のためには、アルミフレームを取り付けないフレームレスの太陽電池モジュールがある。
このようなフレームレスの太陽電池モジュールとしては、受光面側フィルムと、受光面側充填材と、接続タブで電気的に接続された複数の太陽電池素子と、裏面側充填材と、裏面側フィルムとを重ねるように順次配設して成る太陽電池モジュールであって、前記受光面側フィルムの周縁部と前記裏面側フィルムの周縁部とを熱融着した構造が提案されている（特許文献１参照）。
また、別のフレームレスの太陽電池モジュールとしては、フレームレス太陽電池モジュールを、勾配を有する住宅屋根等の被取付け部材に敷設する際、被取付け部材の勾配方向に隣接する太陽電池モジュール間に、棒状目地材を挟んで太陽電池モジュールを敷設し、棒状目地材の全体が太陽電池モジュールの表面から突出しないようにした構造が提案されている（特許文献２参照）。
On the other hand, in order to reduce the weight of the solar cell module and reduce the manufacturing cost, there is a frameless solar cell module in which an aluminum frame is not attached.
As such a frameless solar cell module, a light receiving surface side film, a light receiving surface side filler, a plurality of solar cell elements electrically connected by connection tabs, a back surface side filler, and a back surface side film And a structure in which the peripheral portion of the light receiving surface side film and the peripheral portion of the back surface side film are heat-sealed (Patent Document 1). reference).
Further, as another frameless solar cell module, when laying the frameless solar cell module on a mounted member such as a residential roof having a gradient, between the solar cell modules adjacent in the gradient direction of the mounted member, A structure has been proposed in which a solar cell module is laid across a rod-shaped joint material so that the entire rod-shaped joint material does not protrude from the surface of the solar cell module (see Patent Document 2).
しかし、フレームレスの太陽電池モジュールでは、太陽光照射面のカバーガラスと基板ガラスの間のＥＶＡ樹脂等の充填材が露出してしまい、耐候性能の悪化を招いてしまうという問題がある。特に、風雨にさらされた状態で使用されると、屋外暴露により基板端部から湿分が侵入してしまい、太陽電池の発電効率の低下を招いてしまうという問題があった。 However, in the frameless solar cell module, there is a problem that a filler such as EVA resin between the cover glass and the substrate glass on the solar light irradiation surface is exposed and the weather resistance is deteriorated. In particular, when used in a state exposed to wind and rain, there is a problem that moisture penetrates from the edge of the substrate due to outdoor exposure, leading to a decrease in power generation efficiency of the solar cell.
また、先行特許１のように、受光面側フィルムの周縁部と裏面側フィルムの周縁部とを熱融着したフィルムを用いても、屋外暴露により端部のフィルムが劣化して湿分が侵入してしまうという問題があった。
また、先行特許２のように、棒状目地材を挟んで太陽電池モジュールを敷設した場合には、敷設するための作業が煩雑となるばかりか、棒目地材を使用する分だけコストが高くなってしまうという問題があった。
Moreover, even if the film which heat-fused the peripheral part of the light-receiving surface side film and the peripheral part of the back side film like the prior patent 1 is used, the film of an edge part deteriorates by outdoor exposure, and moisture penetrate | invades. There was a problem of doing.
Moreover, when the solar cell module is laid between the rod-shaped joint materials as in the prior art 2, not only the work for laying is complicated, but also the cost is increased by using the rod joint material. There was a problem that.
本発明は、上記問題点を解決するためになされたものであって、フレームレスであっても、耐候性に優れ、湿分がＣＩＳ系太陽電池デバイスまで侵入することを防止でき、発電効率の低下を防止できる太陽電池モジュール及びその製造方法を提供することを目的とする。 The present invention has been made in order to solve the above-described problems, and even when frameless, it has excellent weather resistance, can prevent moisture from entering the CIS solar cell device, and can improve power generation efficiency. It aims at providing the solar cell module which can prevent a fall, and its manufacturing method.
上記目的を達成するため、本発明に係る太陽電池モジュールは、基板ガラスと、上記基板ガラス上に形成されたＣＩＳ系薄膜太陽電池デバイスと、上記ＣＩＳ系薄膜太陽電池デバイスの受光面側に取り付けられたカバーガラスと、上記基板ガラス及び上記カバーガラスを接着保持する充填材と、を有する太陽電池モジュールであって、上記ＣＩＳ系薄膜太陽電池デバイスの端部から、上記基板ガラス端部及びカバーガラスの端部までの間に、上記太陽電池デバイスが形成されていないエッジスペースを設けたことを特徴とする。 In order to achieve the above object, a solar cell module according to the present invention is attached to a substrate glass, a CIS thin film solar cell device formed on the substrate glass, and a light receiving surface side of the CIS thin film solar cell device. A cover glass; and a filler for adhering and holding the substrate glass and the cover glass. From the end of the CIS-based thin film solar cell device, the substrate glass end and the cover glass An edge space where the solar cell device is not formed is provided between the end portions.
本発明の一の観点にかかる太陽電池モジュールの製造方法は、基板ガラスと、上記基板ガラス上に形成されたＣＩＳ系薄膜太陽電池デバイスと、上記カバーガラスと同じ大きさに形成され、上記ＣＩＳ系薄膜太陽電池デバイスをカバーするカバーガラスと、を有し、上記ＣＩＳ系薄膜太陽電池デバイスの端部から、上記基板ガラス端部及びカバーガラスの端部までの間に、上記太陽電池デバイスが形成されていないエッジスペースが設けられた太陽電池モジュールを製造するための方法であって、上記基板ガラス上にエッジスペースに相当する部分に、金属製マスク板を配置し、上記金属製マスク板を配置した状態で、上記ＣＩＳ系薄膜太陽電池デバイスを成膜し、成膜完成後に、上記金属製マスク板を取り除くことで、上記エッジスペースを形成し、上記エッジスペースを形成した基板ガラス上に、上記カバーガラスを取り付けることを特徴とする。 A method for manufacturing a solar cell module according to one aspect of the present invention includes a substrate glass, a CIS-based thin-film solar cell device formed on the substrate glass, and the same size as the cover glass. A cover glass covering the thin film solar cell device, and the solar cell device is formed between an end of the CIS-based thin film solar cell device and an end of the substrate glass and an end of the cover glass. A method for producing a solar cell module provided with a non-edge space, wherein a metal mask plate is disposed on a portion corresponding to the edge space on the substrate glass, and the metal mask plate is disposed. In the state, the CIS-based thin-film solar cell device is formed, and after the film formation is completed, the metal mask plate is removed, thereby obtaining the edge space. Formed, on a substrate glass forming the edge space, characterized in that mounting the cover glass.
また、上記金属製マスク板は、ステンレス製であってもよい。 The metal mask plate may be made of stainless steel.
本発明の別の観点にかかる太陽電池モジュールの製造方法は、基板ガラスと、上記基板ガラス上に形成されたＣＩＳ系薄膜太陽電池デバイスと、上記カバーガラスと同じ大きさに形成され、上記ＣＩＳ系薄膜太陽電池デバイスをカバーするカバーガラスと、を有し、上記ＣＩＳ系薄膜太陽電池デバイスの端部から、上記基板ガラス端部及びカバーガラスの端部までのＡ間に、上記太陽電池サブモジュールが形成されていないエッジスペースが設けられた太陽電池モジュールを製造するための方法であって、上記基板ガラス上に上記ＣＩＳ系薄膜太陽電池デバイスを成膜し、成膜完成後に、上記エッジスペースに相当する部分のＣＩＳ系薄膜太陽電池デバイスを削ることで上記エッジスペースを形成し、上記エッジスペースを形成した上記ＣＩＳ系薄膜太陽電池デバイス上に、上記カバーガラスを取り付けることを特徴とする。 The manufacturing method of the solar cell module concerning another viewpoint of this invention is formed in the same magnitude | size as substrate glass, the CIS type thin film solar cell device formed on the said substrate glass, and the said cover glass, The said CIS type | system | group A cover glass covering the thin film solar cell device, and the solar cell submodule is between A from the end of the CIS thin film solar cell device to the end of the substrate glass and the end of the cover glass. A method for manufacturing a solar cell module provided with an unformed edge space, wherein the CIS-based thin film solar cell device is formed on the substrate glass, and corresponds to the edge space after film formation is completed The edge space is formed by cutting the CIS-based thin film solar cell device of the portion to be formed, and the CI in which the edge space is formed On the system thin film solar cell device, characterized in that mounting the cover glass.
本発明によれば、エッジスペースを設けたことで、太陽電池サブモジュールの端部から湿分が浸入した場合であっても、その湿分がＣＩＳ系太陽電池デバイスまで到達することを防止でき、ＣＩＳ系薄膜太陽電池デバイスの発電効率の低下を防止することができる。 According to the present invention, by providing the edge space, even when moisture enters from the end of the solar cell submodule, the moisture can be prevented from reaching the CIS solar cell device, A reduction in power generation efficiency of the CIS-based thin film solar cell device can be prevented.
次に、本発明の第一の実施形態について図を参照して説明する。
図１、図３に本発明にかかる太陽電池モジュールを示す。
太陽電池モジュール１は、図１、図３に示すように、基板ガラス１１と、この基板ガラス１１上に積層されたＣＩＳ系薄膜太陽電池デバイス１２と、ＥＶＡ樹脂などの充填材１３と、この充填材１３を介して基板ガラス１１に取り付けられたカバーガラス１４から構成されている。
基板ガラス１１は、その上にＣＩＳ系薄膜太陽電池デバイス１２が形成される基板となるものである。この基板ガラス１１の裏面側には、ＥＶＡ樹脂などの充填材を介して、例えばフッ素系樹脂、ＰＥＴやアルミニウム箔などを貼り合わせてなるフィルムが貼られていてもよい。
ＣＩＳ系薄膜太陽電池デバイス１２は、金属裏面電極層、ｐ形光吸収層、高抵抗バッファ層、ｎ形窓層（透明導電膜）などの薄膜を積層して形成されたデバイスであり、このデバイスが太陽光等の光を受けることにより発電する。
ＥＶＡ樹脂などの充填材１３は、基板ガラス１１と、カバーガラス１４との間を埋めると共に、これらを一体に取り付けるための充填材である。このＥＶＡ樹脂などの充填材１３は、基板ガラス１１とカバーガラス１４との間に挟まれた状態で、加熱されながらプレスされることで溶けて広がり、その隙間を埋めるとともに、基板ガラス１１とカバーガラス１４を接着することができる。
カバーガラス１４は、太陽電池モジュール１の受光面に設けられたガラスであって、強化ガラスなどにより構成することができる。このカバーガラス１４の大きさは、基板ガラス１１と同じ大きさに形成されている。
Next, a first embodiment of the present invention will be described with reference to the drawings.
1 and 3 show a solar cell module according to the present invention.
As shown in FIGS. 1 and 3, the solar cell module 1 includes a substrate glass 11, a CIS thin film solar cell device 12 laminated on the substrate glass 11, a filler 13 such as EVA resin, and this filling The cover glass 14 is attached to the substrate glass 11 via a material 13.
The substrate glass 11 is a substrate on which the CIS-based thin film solar cell device 12 is formed. On the back surface side of the substrate glass 11, for example, a film made of a fluorine resin, PET, aluminum foil, or the like may be attached via a filler such as EVA resin.
The CIS thin film solar cell device 12 is a device formed by laminating thin films such as a metal back electrode layer, a p-type light absorption layer, a high-resistance buffer layer, and an n-type window layer (transparent conductive film). Generates electricity by receiving light such as sunlight.
The filler 13 such as EVA resin is a filler for filling the space between the substrate glass 11 and the cover glass 14 and attaching them together. The filler 13 such as EVA resin melts and spreads by being pressed while being heated while being sandwiched between the substrate glass 11 and the cover glass 14, and fills the gap between the substrate glass 11 and the cover glass 14. Glass 14 can be glued.
The cover glass 14 is a glass provided on the light receiving surface of the solar cell module 1 and can be composed of tempered glass or the like. The cover glass 14 is formed in the same size as the substrate glass 11.
基板ガラス１１及びカバーガラス１４の端部と、ＣＩＳ系薄膜太陽電池１２との間には、図１、図３に示すように、エッジスペースＳが基板ガラス１１上に枠状に形成されている。このエッジスペースＳの一端部の幅は、本例では、１５ｍｍとなっている。これは、１０ｍｍ以下とすると、端部からの湿分の侵入により、ＣＩＳ薄膜太陽電池デバイス１２が湿り、発電効率が低下してしまうことを防止するためである。また、エッジスペースＳの幅が大きすぎると、太陽電池モジュール１自体の出力が低下してしまう。
このエッジスペースＳの幅と耐候性の関係を図４に示す。図４は、基板ガラスの端部から１０ｍｍ、１５ｍｍ、２０ｍｍ、３０ｍｍの上記エッジスペースを設けて金属裏面電極層を積層してＥＶＡ樹脂を充填材としてカバーガラスと貼り付け、ＪＩＳＣ８９１７の付属書１１（規定）耐湿性試験Ｂ−２を実施した結果である。１５０８時間経過した時点で金属裏面電極の端部が侵入した湿分により変色が見られた。しかし、エッジスペースＳの幅を１５ｍｍ以上とした場合には、２００８時間経過した時点でも、湿分の侵入による金属裏面電極の端部の変色は見られなかった。このため、最も好適な例としてはエッジスペースＳの幅を１５ｍｍとすることで、耐候性の良い太陽電池モジュール１を作製することができる。
なお、この幅は１５ｍｍに限定されるものではなく、１０ｍｍ以上、好ましくは１５ｍｍ以上であればよい。
As shown in FIGS. 1 and 3, an edge space S is formed in a frame shape on the substrate glass 11 between the end portions of the substrate glass 11 and the cover glass 14 and the CIS thin film solar cell 12. . The width of one end of the edge space S is 15 mm in this example. This is to prevent the CIS thin-film solar cell device 12 from getting wet due to the intrusion of moisture from the end when the thickness is 10 mm or less, thereby reducing power generation efficiency. Moreover, when the width of the edge space S is too large, the output of the solar cell module 1 itself is lowered.
The relationship between the width of the edge space S and the weather resistance is shown in FIG. FIG. 4 shows the above-mentioned edge space of 10 mm, 15 mm, 20 mm, and 30 mm provided from the edge of the substrate glass, and a metal back electrode layer is laminated and attached to the cover glass using EVA resin as a filler. Regulation) This is a result of carrying out the moisture resistance test B-2. When 1508 hours had elapsed, discoloration was observed due to moisture that had penetrated the end of the metal back electrode. However, when the width of the edge space S was set to 15 mm or more, discoloration of the end portion of the metal back electrode due to the intrusion of moisture was not seen even after the elapse of 2008 hours. For this reason, as the most suitable example, the solar cell module 1 with good weather resistance can be produced by setting the width of the edge space S to 15 mm.
The width is not limited to 15 mm, and may be 10 mm or more, preferably 15 mm or more.
次に、上述の太陽電池モジュールの製造方法について説明する。
＜実施形態１＞
実施形態１として、製造工程でエッジスペースＳ部分に、マスク板Ｍをした状態でＣＩＳ系薄膜太陽電池デバイス１２を成膜して、このマスク板Ｍを取り外すことでエッジスペースＳを形成する例について説明する。
まず、基板ガラス１１上のエッジスペースＳに相当する部分に、図２に示すマスク板Ｍを配置する。
このマスク板Ｍは、図２に示すようにステンレス等の金属により中空枠状に形成されている。このマスク板Ｍの一端部の幅Ｈは、エッジスペースＳの幅と同じに形成されており、１０ｍｍ以上、好ましくは１５ｍｍ以上であればよい。
Next, the manufacturing method of the above-mentioned solar cell module will be described.
<Embodiment 1>
As Embodiment 1, an example in which the edge space S is formed by removing the mask plate M after forming the CIS-based thin film solar cell device 12 in a state where the mask plate M is applied to the edge space S portion in the manufacturing process. explain.
First, the mask plate M shown in FIG. 2 is arranged in a portion corresponding to the edge space S on the substrate glass 11.
As shown in FIG. 2, the mask plate M is formed in a hollow frame shape from a metal such as stainless steel. The width H of one end portion of the mask plate M is formed to be the same as the width of the edge space S, and may be 10 mm or more, preferably 15 mm or more.
基板ガラス１１上にマスク板Ｍを配置した状態で、ＣＩＳ系薄膜太陽電池デバイス１２を成膜する。この成膜は、金属裏面電極層、ｐ形光吸収層、高抵抗バッファ層、ｎ形窓層（透明導電膜）などの各層を積層して形成する。
これにより、基板ガラス１１及びマスク板Ｍ上にＣＩＳ系薄膜太陽電池デバイス１２が成膜される。
なお、マスク板Ｍはステンレス製の金属製とすることで、成膜工程でマスク板Ｍが変質してエッジスペースＳをマスキングできなくなったり、またマスク板Ｍの変質によりＣＩＳ系太陽電池デバイス１２へ悪影響を与えることを防止できる。
With the mask plate M disposed on the substrate glass 11, the CIS-based thin film solar cell device 12 is formed. This film is formed by laminating layers such as a metal back electrode layer, a p-type light absorption layer, a high resistance buffer layer, and an n-type window layer (transparent conductive film).
Thereby, the CIS type thin film solar cell device 12 is formed on the substrate glass 11 and the mask plate M.
Note that the mask plate M is made of stainless steel metal, so that the mask plate M is altered in the film forming process and the edge space S cannot be masked, or the alteration of the mask plate M leads to the CIS solar cell device 12. It can prevent adverse effects.
成膜完成後に、ピッキング装置等によりマスク板Ｍを基板ガラス１１上から取り除く。
これにより、マスク板Ｍが配置されていた部分には、ＣＩＳ系薄膜太陽電池デバイスが成膜されていないエッジスペースＳが形成される。つまり、基板ガラス１１上面には、その端部に沿って枠状にエッジスペースＳが形成されることになる。
After the film formation is completed, the mask plate M is removed from the substrate glass 11 by a picking device or the like.
Thereby, the edge space S in which the CIS-based thin film solar cell device is not formed is formed in the portion where the mask plate M is disposed. That is, the edge space S is formed in a frame shape on the upper surface of the substrate glass 11 along the end portion.
この状態で、エッジスペースＳを形成した基板ガラス１１及びＣＩＳ系薄膜太陽電池デバイス１２上に、カバーガラスと同寸法またはそれ以上の寸法のシート状のＥＶＡ樹脂などの充填材１３を配置して、その上にカバーガラス１４を置く。
そして、カバーガラス１４、ＥＶＡ樹脂などの充填材１３、基板ガラス１１の順に積層し、ラミネータで加熱しながら脱泡、加圧するとＣＩＳ系太陽電池デバイス１２及びエッジスペースＳを溶解したＥＶＡ樹脂などの充填材１３がカバーガラス１４と基板ガラス１１を固着する。さらに加熱することでＥＶＡ樹脂は、架橋された状態となる。
In this state, on the substrate glass 11 and the CIS-based thin film solar cell device 12 in which the edge space S is formed, a filler 13 such as a sheet-like EVA resin having the same dimension as or larger than the cover glass is disposed. A cover glass 14 is placed thereon.
Then, the cover glass 14, the filler 13 such as EVA resin, and the substrate glass 11 are laminated in this order, defoamed and pressurized while heating with a laminator, and the CIS solar cell device 12 and the EVA resin in which the edge space S is dissolved. The filler 13 fixes the cover glass 14 and the substrate glass 11. Further heating causes the EVA resin to be in a crosslinked state.
これにより、基板ガラス１１及びカバーガラス１４の端部から所定の幅（例えば、１５ｍｍ）の距離を置いて、ＣＩＳ系薄膜太陽電池デバイス１２が成膜されていることから、例えばその側端部に金属フレームを取り付けなくとも、雨水等の外部の湿分がＣＩＳ系薄膜太陽電池デバイス１２へ影響することを防止できる。つまり、外部の湿分があっても、十分な幅を持って形成されたエッジスペースＳに充填されたＥＶＡ樹脂などの充填材１３により侵入を防ぐことができ、ＣＩＳ系薄膜太陽電池デバイス１２の発電効率が低下することを防止できる。 Thereby, since the CIS type thin film solar cell device 12 is formed at a distance of a predetermined width (for example, 15 mm) from the end portions of the substrate glass 11 and the cover glass 14, for example, at the side end portions thereof. Even if a metal frame is not attached, it is possible to prevent external moisture such as rain water from affecting the CIS-based thin film solar cell device 12. That is, even if there is external moisture, the filler 13 such as EVA resin filled in the edge space S having a sufficient width can prevent intrusion, and the CIS-based thin film solar cell device 12 It can prevent that power generation efficiency falls.
＜実施形態２＞
上述の製造方法は、マスク板Ｍを用いる場合について説明したが、これに限らずＣＩＳ系薄膜太陽電池デバイス１２の成膜後に、エッジスペースＳに応じて成膜部分を削るようにしてもよい。この場合の製造方法について説明する。
<Embodiment 2>
Although the above-described manufacturing method has been described with respect to the case where the mask plate M is used, the present invention is not limited thereto, and the film forming portion may be cut according to the edge space S after the CIS-based thin film solar cell device 12 is formed. A manufacturing method in this case will be described.
まず、基板ガラス１１上の全面にＣＩＳ系薄膜太陽電池デバイス１２を成膜する。
成膜完成後、エッジスペースＳに相当する部分、即ち基板ガラス１１の端部から例えば１５ｍｍの幅で、この幅は１０mm以上あれば良く、好ましくは１５mmであり、ＣＩＳ系薄膜太陽電池デバイス１２を枠状に削り取る。この処理は、例えばサンドブラスターや超音波を利用した膜剥離装置を利用して、ＣＩＳ系薄膜太陽電池デバイス１２を削り取ることができる。
これにより、エッジスペースＳに相当する部分のＣＩＳ系薄膜太陽電池デバイス１２が、枠状に削り取られてエッジスペースＳが形成される。
First, the CIS thin film solar cell device 12 is formed on the entire surface of the substrate glass 11.
After film formation is completed, a portion corresponding to the edge space S, that is, a width of, for example, 15 mm from the end of the substrate glass 11, this width may be 10 mm or more, preferably 15 mm, and the CIS thin film solar cell device 12 is Scrap into a frame. In this process, for example, the CIS-based thin film solar cell device 12 can be scraped off using a film peeling apparatus using sand blaster or ultrasonic waves.
Thereby, the CIS type thin film solar cell device 12 corresponding to the edge space S is scraped into a frame shape to form the edge space S.
この状態で、基板ガラス１１及びＣＩＳ系薄膜太陽電池デバイス１２上に、シート状のＥＶＡ樹脂などの充填材１３を被せて、このＥＶＡ樹脂などの充填材１３を挟むようにしてカバーガラス１４を配置する。
この状態で、カバーガラス１４、ＥＶＡ樹脂などの充填材１３、基板ガラス１１の順に積層し、ラミネータで加熱しながら脱泡、加圧するとＣＩＳ系太陽電池デバイス１２及びエッジスペースＳを溶解したＥＶＡ樹脂などの充填材１３がカバーガラス１４と基板ガラス１１を固着する。さらに加熱することでＥＶＡ樹脂は、架橋された状態となる。これにより、基板ガラス１１及びカバーガラス１４の側端部は、ＥＶＡ樹脂などの充填材１３により封止された状態となる。
In this state, the substrate glass 11 and the CIS-based thin film solar cell device 12 are covered with a filler 13 such as a sheet-like EVA resin, and the cover glass 14 is disposed so as to sandwich the filler 13 such as the EVA resin.
In this state, the cover glass 14, the filler 13 such as EVA resin, and the substrate glass 11 are laminated in this order, defoamed and pressurized while heating with a laminator, and the EVA resin in which the CIS solar cell device 12 and the edge space S are dissolved. Etc., the cover glass 14 and the substrate glass 11 are fixed. Further heating causes the EVA resin to be in a crosslinked state. Thereby, the side edge part of the substrate glass 11 and the cover glass 14 will be in the state sealed by the fillers 13, such as EVA resin.
この方法によっても、基板ガラス１１及びカバーガラス１４の端部から所定の幅（例えば、１５ｍｍ）の距離を置いて、ＣＩＳ系薄膜太陽電池デバイス１２が成膜されていることから、例えばその側端部に金属フレームを取り付けなくとも、雨水等の外部の湿分がＣＩＳ系薄膜太陽電池デバイス１２へ影響することを防止できる。つまり、外部の湿分があっても、十分な幅を持って形成されたエッジスペースＳに充填されたＥＶＡ樹脂などの充填材１３により侵入を防ぐことができ、ＣＩＳ系薄膜太陽電池デバイス１２の発電効率が低下することを防止できる。 Also by this method, since the CIS-based thin film solar cell device 12 is formed at a distance of a predetermined width (for example, 15 mm) from the ends of the substrate glass 11 and the cover glass 14, for example, the side edges thereof Even if a metal frame is not attached to the part, external moisture such as rainwater can be prevented from affecting the CIS-based thin film solar cell device 12. That is, even if there is external moisture, the filler 13 such as EVA resin filled in the edge space S having a sufficient width can prevent intrusion, and the CIS-based thin film solar cell device 12 It can prevent that power generation efficiency falls.
１ 太陽電池モジュール
１１ 基板ガラス
１２ ＣＩＳ系薄膜太陽電池デバイス
１３ 充填材
１４ カバーガラス
DESCRIPTION OF SYMBOLS 1 Solar cell module 11 Substrate glass 12 CIS type thin film solar cell device 13 Filler 14 Cover glass
Claims (4)
上記ＣＩＳ系薄膜太陽電池デバイスの受光面側に取り付けられたカバーガラスと、
上記基板ガラス及び上記カバーガラスを接着保持する充填材と、を有する太陽電池モジュールであって、
上記ＣＩＳ系薄膜太陽電池デバイスの端部から、上記基板ガラス端部及びカバーガラスの端部までの間に、上記太陽電池デバイスが形成されていないエッジスペースを設けた、
ことを特徴とする太陽電池モジュール。 A substrate glass, and a CIS-based thin film solar cell device formed on the substrate glass;
A cover glass attached to the light-receiving surface side of the CIS-based thin film solar cell device;
A solar cell module having a filler for bonding and holding the substrate glass and the cover glass,
An edge space where the solar cell device is not formed is provided between the end of the CIS-based thin film solar cell device and the end of the substrate glass and the cover glass.
A solar cell module characterized by that.
上記基板ガラス上の上記エッジスペースに相当する部分に、金属製マスク板を配置し、
上記金属製マスク板を配置した状態で、上記ＣＩＳ系薄膜太陽電池デバイスを成膜し、
成膜完成後に、上記金属製マスク板を取り除くことで、上記エッジスペースを形成し、
上記エッジスペースを形成した上記ＣＩＳ系薄膜太陽電池デバイス上に、上記カバーガラスを取り付ける、
ことを特徴とする太陽電池モジュールの製造方法。 A substrate glass, a CIS thin film solar cell device formed on the substrate glass, and a cover glass that is formed in the same size as the cover glass and covers the CIS thin film solar cell device, and In order to manufacture a solar cell module in which an edge space in which the solar cell submodule is not formed is provided between the end portion of the CIS-based thin film solar cell device and the end portion of the substrate glass and the cover glass. The method of
In a portion corresponding to the edge space on the substrate glass, a metal mask plate is arranged,
With the metal mask plate disposed, the CIS-based thin film solar cell device is formed,
After film formation is completed, the metal mask plate is removed to form the edge space,
The cover glass is attached on the CIS-based thin film solar cell device in which the edge space is formed.
A method for producing a solar cell module, comprising:
請求項２記載の太陽電池モジュールの製造方法。 The metal mask plate is made of stainless steel,
The manufacturing method of the solar cell module of Claim 2.
上記基板ガラス上に上記ＣＩＳ系薄膜太陽電池デバイスを成膜し、
成膜完成後に、上記エッジスペースに相当する部分のＣＩＳ系薄膜太陽電池デバイスを削ることで上記エッジスペースを形成し、
上記エッジスペースを形成した上記ＣＩＳ系薄膜太陽電池デバイス上に、上記カバーガラスを取り付ける、
ことを特徴とする太陽電池モジュールの製造方法。 A substrate glass, a CIS thin film solar cell device formed on the substrate glass, and a cover glass that is formed in the same size as the cover glass and covers the CIS thin film solar cell device, and In order to manufacture a solar cell module in which an edge space in which the solar cell submodule is not formed is provided between the end portion of the CIS-based thin film solar cell device and the end portion of the substrate glass and the cover glass. The method of
Forming the CIS-based thin film solar cell device on the substrate glass,
After film formation is completed, the edge space is formed by scraping the portion of the CIS-based thin film solar cell device corresponding to the edge space,
The cover glass is attached on the CIS-based thin film solar cell device in which the edge space is formed.
A method for producing a solar cell module, comprising:
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2007125263A JP2008282944A (en) | 2007-05-10 | 2007-05-10 | Solar cell module and manufacturing method |
| PCT/JP2008/058418 WO2008139974A1 (en) | 2007-05-10 | 2008-05-02 | Solar cell module and method of manufacturing same |
| TW097116840A TW200847455A (en) | 2007-05-10 | 2008-05-07 | Solar cell module and method of manufacturing same |
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| JP2007125263A JP2008282944A (en) | 2007-05-10 | 2007-05-10 | Solar cell module and manufacturing method |
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| JP (1) | JP2008282944A (en) |
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| WO (1) | WO2008139974A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074276A1 (en) * | 2008-12-26 | 2010-07-01 | 京セラ株式会社 | Photoelectric conversion module |
| DE112010001629T5 (en) | 2009-04-17 | 2012-05-24 | Showa Shell Sekiyu K.K. | A method of manufacturing a solar cell module provided with a corner space |
| DE112010001893T5 (en) | 2009-04-17 | 2012-06-14 | Showa Shell Sekiyu K.K. | Solar cell module, provided with an edge distance |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI576861B (en) * | 2010-02-12 | 2017-04-01 | 碩禾電子材料股份有限公司 | Conductive aluminum pastes and the fabrication method thereof, the solar cell and the module thereof |
| TWI632689B (en) * | 2017-04-28 | 2018-08-11 | 上銀光電股份有限公司 | Frameless thin film solar cell package |
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| JPH09331079A (en) * | 1996-06-07 | 1997-12-22 | M S K:Kk | Frameless solar cell module |
| JP2006310680A (en) * | 2005-05-02 | 2006-11-09 | Kaneka Corp | Thin film solar cell module |
| JP4841173B2 (en) * | 2005-05-27 | 2011-12-21 | 昭和シェル石油株式会社 | High resistance buffer layer / window layer continuous film forming method and film forming apparatus for CIS thin film solar cell |
-
2007
- 2007-05-10 JP JP2007125263A patent/JP2008282944A/en active Pending
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2008
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074276A1 (en) * | 2008-12-26 | 2010-07-01 | 京セラ株式会社 | Photoelectric conversion module |
| JP5340312B2 (en) * | 2008-12-26 | 2013-11-13 | 京セラ株式会社 | Photoelectric conversion module |
| DE112010001629T5 (en) | 2009-04-17 | 2012-05-24 | Showa Shell Sekiyu K.K. | A method of manufacturing a solar cell module provided with a corner space |
| DE112010001893T5 (en) | 2009-04-17 | 2012-06-14 | Showa Shell Sekiyu K.K. | Solar cell module, provided with an edge distance |
| US8603853B2 (en) | 2009-04-17 | 2013-12-10 | Showa Shell Sekiyu K.K. | Method for manufacturing a solar cell module provided with an edge space |
| US9166086B2 (en) | 2009-04-17 | 2015-10-20 | Solar Frontier K.K. | Method for manufacturing solar cell module provided with an edge space |
| US9166085B2 (en) | 2009-04-17 | 2015-10-20 | Solar Frontier K.K. | Method for manufacturing solar cell module provided with an edge space |
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| WO2008139974A1 (en) | 2008-11-20 |
| TW200847455A (en) | 2008-12-01 |
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