JPH10242491A - Solar cell and solar cell panel using the same - Google Patents
Solar cell and solar cell panel using the sameInfo
- Publication number
- JPH10242491A JPH10242491A JP9047473A JP4747397A JPH10242491A JP H10242491 A JPH10242491 A JP H10242491A JP 9047473 A JP9047473 A JP 9047473A JP 4747397 A JP4747397 A JP 4747397A JP H10242491 A JPH10242491 A JP H10242491A
- Authority
- JP
- Japan
- Prior art keywords
- solar cell
- substrate
- electrode
- cell device
- cell panel
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、電力用太陽電池
などに用いられる太陽電池装置およびそれを用いた太陽
電池パネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solar cell device used for a power solar cell and the like, and a solar cell panel using the same.
【０００２】[0002]
【従来の技術】太陽電池は、ある環境下で長期間に亘っ
て、決められた電圧或いは電流で動作する必要がある。
このため、実際使用されている太陽電池は、複数個の光
起電力素子を直列或いは並列に組み合わせて所定の電圧
が得られるように配置すると共に、周囲環境に耐えられ
るように強化ガラスなどの支持板、充填材、コート材な
どで保護されている。2. Description of the Related Art A solar cell needs to operate at a predetermined voltage or current under a certain environment for a long period of time.
For this reason, the solar cells actually used are arranged so that a predetermined voltage can be obtained by combining a plurality of photovoltaic elements in series or in parallel, and supported by a tempered glass or the like so as to withstand the surrounding environment. It is protected by boards, fillers, coatings, etc.
【０００３】従来の太陽電池パネルにつき、図４に従い
説明する。図４に示すように、従来の太陽電池パネル
は、強化ガラスからなる表面透明基板４１と、アルミニ
ウムなどからなる裏面金属基板４２の間に、直列又は並
列に銅箔、リード線などの接続リード３５により接続さ
れた多結晶シリコン、非晶質シリコン等で構成された太
陽電池装置３０を挿入し、これらの間にエチレンビニー
ルアセテート樹脂（ＥＶＡ）などの接着材４３を介在さ
せて積層形成されている。A conventional solar cell panel will be described with reference to FIG. As shown in FIG. 4, a conventional solar cell panel has a connection lead 35 such as a copper foil or a lead wire between a front transparent substrate 41 made of tempered glass and a rear metal substrate 42 made of aluminum or the like in series or parallel. A solar cell device 30 made of polycrystalline silicon, amorphous silicon, or the like connected by the above-described method is inserted, and laminated with an adhesive 43 such as ethylene vinyl acetate resin (EVA) interposed therebetween. .
【０００４】上記太陽電池装置３０は、ガラス基板３１
上に、透明電極、非晶質シリコン、結晶系シリコンなど
からなる発電層、裏面金属電極、で構成された発電部が
設けられている。上記太陽電池装置３０には、裏面金属
電極と電気的に接続される取り出し電極３３ａと透明電
極と電気的に接続される取り出し電極３３ｂが設けられ
ており、これら両取り出し電極３３ａ、３３ｂは、光入
射側とは逆の裏面側に設けられている。この取り出し電
極３３ａ、３３ｂに半田付けにより接続リード３５を取
り付け、太陽電池装置３０、３０間の電気的接続を行っ
ていた。[0004] The solar cell device 30 includes a glass substrate 31.
A power generation section including a transparent electrode, a power generation layer made of amorphous silicon, crystalline silicon, or the like, and a back metal electrode is provided thereon. The solar cell device 30 is provided with an extraction electrode 33a electrically connected to the back metal electrode and an extraction electrode 33b electrically connected to the transparent electrode. It is provided on the back side opposite to the entrance side. The connection leads 35 were attached to the extraction electrodes 33a and 33b by soldering, and electrical connection between the solar cell devices 30 and 30 was performed.
【０００５】[0005]
【発明が解決しようとする課題】従来の取り出し電極３
３ｂ部分は、発電部分とは分離された発電に寄与しない
無効部分であり、この部分の面積が大きく受光面積の有
効利用が図れないという問題があった。A conventional extraction electrode 3
The portion 3b is an ineffective portion separated from the power generation portion and not contributing to power generation, and has a problem that the area of this portion is large and the light receiving area cannot be effectively used.
【０００６】また、太陽電池装置３０を接続するために
は、接続リード３５に半田付けを施して取り出し電極３
３ａ、３３ｂ同士を接続する必要があるため、接続作業
に非常に時間がかかる上、半田付けの状態によっては、
接続部の接触抵抗が大きくなり不良の原因となってい
た。In order to connect the solar cell device 30, the connection lead 35 is soldered to take out the electrode 3.
Since it is necessary to connect 3a and 33b to each other, it takes a very long time to perform the connection operation, and depending on the state of soldering,
The contact resistance of the connection part was increased, causing a failure.
【０００７】更に、接続リード３５が太陽電池装置３
０、３０の間から見える場合があり、外観を悪くする原
因にもなっていた。Further, the connection lead 35 is connected to the solar cell device 3
In some cases, it could be seen from between 0 and 30, which was a cause of poor appearance.
【０００８】この発明は、上述した従来の問題点を解決
するためになされたものにして、優れた外観で容易に形
成できる太陽電池装置及びそれを用いた太陽電池パネル
を提供することを目的とする。An object of the present invention is to provide a solar cell device which can be easily formed with an excellent appearance and a solar cell panel using the same, in order to solve the above-mentioned conventional problems. I do.
【０００９】[0009]
【課題を解決するための手段】この発明の太陽電池装置
は、基板の主面上に複数の発電素子が設けられると共
に、各発電素子が電気的に接続された太陽電池装置であ
って、前記基板の側面端部の全面に取り出し電極が設け
られていることを特徴とする。The solar cell device according to the present invention is a solar cell device in which a plurality of power generating elements are provided on a main surface of a substrate and each of the power generating elements is electrically connected. An extraction electrode is provided on the entire side surface of the substrate.
【００１０】前記基板の側面端部は基板の一主面と直交
する方向から所定の角度を有するように形成するとよ
い。[0010] The side edge of the substrate may be formed to have a predetermined angle from a direction orthogonal to one main surface of the substrate.
【００１１】上記した構造によれば、取り出し電極は端
部全面に形成されるので、光入射側に位置する取り出し
面積を小さくでき、発電の無効部分が縮小され、受光面
積の有効利用が図れる。According to the above structure, since the extraction electrode is formed on the entire end portion, the extraction area located on the light incident side can be reduced, the ineffective portion of power generation can be reduced, and the light receiving area can be used effectively.
【００１２】また、この発明の太陽電池パネルは、複数
の上記の太陽電池装置が、基板の端部同士で接合され、
電気的接続が行われていることを特徴とする。[0012] Further, a solar cell panel according to the present invention includes a plurality of the above solar cell devices joined at end portions of a substrate,
It is characterized in that an electrical connection is made.
【００１３】更に、１つの太陽電池装置の基板の側面端
部は基板の一主面と直交する方向から所定の角度を有
し、この基板の側面端部と接続される他の太陽電池装置
の基板の側面の端部は前記角度と係合する角度に形成さ
れていることを特徴とする。Further, the side edge of the substrate of one solar cell device has a predetermined angle from a direction orthogonal to one main surface of the substrate, and the edge of another solar cell device connected to the side edge of this substrate. The end of the side surface of the substrate is formed at an angle engaging with the angle.
【００１４】上記した構成によれば、電気的接続を行う
とき、面と面が全面で接続され、接触抵抗が低くなり、
接続部のロスが小さくなる。According to the above configuration, when making an electrical connection, the surfaces are connected over the entire surface, and the contact resistance is reduced.
The loss at the connection is reduced.
【００１５】しかも太陽電池パネル化する際、太陽電池
装置を隙間なく並べることができるので、外観がよくな
る。In addition, when a solar cell panel is formed, the solar cell devices can be arranged without any gaps, so that the appearance is improved.
【００１６】更に、太陽電池装置の端部同士を突き合わ
せて両者を接続するので、接続作業が容易になる。Further, since the ends of the solar cell device are connected to each other by abutting each other, the connection work is facilitated.
【００１７】[0017]
【発明の実施の形態】以下、この発明の実施の形態につ
き図面を参照して説明する。図１は、この発明の太陽電
池装置を示す概略断面図であり、（ａ）は一方の端部、
（ｂ）は他方の端部を示す。図２は、この発明の太陽電
池装置を接続した状態を示す概略断面図、図３は、この
発明の太陽電池パネルを示す概略断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing a solar cell device according to the present invention.
(B) shows the other end. FIG. 2 is a schematic sectional view showing a state where the solar cell device of the present invention is connected, and FIG. 3 is a schematic sectional view showing a solar cell panel of the present invention.
【００１８】この発明の太陽電池装置１は、光入射側の
透明基板１０の両端部が斜めに角度を有する長手方向の
断面が平行四辺形に形成されている。即ち、太陽電池装
置１の一方の端部と他の他方の端部を突き合わせると、
基板１０が連続するようになっている。In the solar cell device 1 according to the present invention, both ends of the transparent substrate 10 on the light incident side are obliquely formed in a parallelogram in a longitudinal cross section. That is, when one end of the solar cell device 1 and the other end of the solar cell device 1 abut against each other,
The substrate 10 is continuous.
【００１９】この実施の形態では、基板１０に透明電極
１１が複数個分割して配置され、その上に発電層１２が
設けられる。発電層１２上には、裏面金属電極１３が設
けられており、裏面金属電極１３は各発電素子ごとに分
割されている。そして、隣接する発電素子の透明電極１
１と裏面金属電極１３とが接続され、隣接する発電素子
が直列に接続されている。In this embodiment, a plurality of transparent electrodes 11 are divided on a substrate 10 and a power generation layer 12 is provided thereon. On the power generation layer 12, a back metal electrode 13 is provided, and the back metal electrode 13 is divided for each power generation element. Then, the transparent electrode 1 of the adjacent power generation element
1 and the back metal electrode 13 are connected, and adjacent power generating elements are connected in series.
【００２０】一方の端部の側面の全領域には、金属ペー
スト、金属薄膜、金属箔等からなる取り出し電極１４ａ
が被着形成されている。この端部に設けられた取り出し
電極１４ａは裏面金属電極１３と接続されている。この
ため、この取り出し電極１４ａは、裏面金属電極１３を
形成した後、端部に位置する裏面金属電極１３と一部と
重なるようにして、側面端部の全領域に被着形成され
る。A lead electrode 14a made of a metal paste, a metal thin film, a metal foil, etc.
Are formed. The extraction electrode 14a provided at this end is connected to the back metal electrode 13. For this reason, after the back metal electrode 13 is formed, the extraction electrode 14a is formed so as to be partially overlapped with the back metal electrode 13 located at the end, and is attached to the entire area of the side end.
【００２１】また、他方の端部の側面の全領域にも、金
属ペースト、金属薄膜、金属箔等からなる取り出し電極
１４ｂが被着形成されている。この取り出し電極１４ｂ
は透明電極１１と接続される。このため、この取り出し
電極１４ｂは透明電極１１を基板１０上に形成した後、
発電層１２を形成する前に端部に位置する透明電極１１
の一部と重なるようにして、側面端部の全領域に被着形
成される。A lead electrode 14b made of a metal paste, a metal thin film, a metal foil, or the like is also formed on the entire side surface of the other end. This extraction electrode 14b
Is connected to the transparent electrode 11. For this reason, after the transparent electrode 11 is formed on the substrate 10,
Transparent electrode 11 located at the end before forming power generation layer 12
Is formed so as to overlap with a part of the entire surface of the side end portion.
【００２２】取り出し電極１４ａ、１４ｂの形成は、例
えば、金属ディップ或いは蒸着による金属膜の形成、又
は金属フィルムを導電性ペーストで接着したりすればよ
い。The extraction electrodes 14a and 14b may be formed, for example, by forming a metal film by metal dipping or vapor deposition, or by bonding the metal film with a conductive paste.
【００２３】上述したように、従来の取り出し電極３３
ｂの部分は、全面発電しない無効部分であったが、この
太陽電池装置１の無効部分は取り出し電極１４ｂで入射
光が遮られる部分だけであり、無効部分は極めて少なく
なる。As described above, the conventional extraction electrode 33
The portion b is an ineffective portion that does not generate power entirely, but the ineffective portion of the solar cell device 1 is only a portion where incident light is blocked by the extraction electrode 14b, and the ineffective portion is extremely small.
【００２４】上記発電層１２として、例えばｐ型非晶質
シリコン層１２ａ、ｉ型非晶質シリコン層１２ｂ、ｎ型
非晶質シリコン層１２ｃの順で積層される場合には、裏
面金属電極１３からの取り出し電極１４ａは負極とな
り、透明電極１１からの取り出し電極１４ｂは正極とな
る。When the power generation layer 12 is laminated in the order of, for example, a p-type amorphous silicon layer 12a, an i-type amorphous silicon layer 12b, and an n-type amorphous silicon layer 12c, the back metal electrode 13 The electrode 14a from the transparent electrode 11 becomes a negative electrode, and the electrode 14b from the transparent electrode 11 becomes a positive electrode.
【００２５】このように形成した太陽電池装置１を、取
り出し電極１４ａと取り出し電極１４ｂとを突き合わ
せ、金属ペースト等の接着材１５を間に挟んで重ね合わ
せることにより、両者の電気的接続が行える。このた
め、接続作業が容易である。The solar cell device 1 thus formed can be electrically connected by abutting the extraction electrode 14a and the extraction electrode 14b and overlapping them with an adhesive 15 such as a metal paste interposed therebetween. For this reason, connection work is easy.
【００２６】また、取り出し電極１４ａ、１４ｂが面と
面との全面で接続されるため、接触抵抗が低くなる。更
に太陽電池装置１、１を隙間なく並べることができるた
め優れた外観の太陽電池パネルの作成が可能となる。Further, since the extraction electrodes 14a and 14b are connected over the entire surface, the contact resistance is reduced. Furthermore, since the solar cell devices 1 and 1 can be arranged without gaps, a solar cell panel having an excellent appearance can be produced.
【００２７】このように太陽電池装置１、１を接続した
のち、図３に示すように、ガラスからなる表面透明基板
２０と、アルミニウムなどからなる裏面金属基板２１の
間に、太陽電池装置１、１を挿入し、これらの間にエチ
レンビニールアセテート樹脂（ＥＶＡ）などの接着材２
２を介在させて太陽電池パネルが形成される。After the solar cell devices 1 and 1 are connected in this way, as shown in FIG. 3, the solar cell devices 1 and 1 are placed between a front transparent substrate 20 made of glass and a back metal substrate 21 made of aluminum or the like. 1 and an adhesive 2 such as ethylene vinyl acetate resin (EVA)
2 are formed to form a solar cell panel.
【００２８】上記実施の形態においては、太陽電池パネ
ルとして、太陽電池装置１、１上に表面透明基板２０を
設けているが、太陽電池装置１、１同士が取り出し電極
１４ａ、１４ｂ部分で面と面との全面で接続されている
ので、表面透明基板２０を省略することもできる。尚、
この時は取り出し電極１４ａ、１４ｂ部分の絶縁と保護
のために、取り出し電極１４ａ、１４ｂ部分に絶縁保護
膜を設けるとよい。In the above-described embodiment, the front transparent substrate 20 is provided on the solar cell devices 1 and 1 as the solar cell panel, but the solar cell devices 1 and 1 are connected to the surface at the extraction electrodes 14a and 14b. Since the connection is made over the entire surface, the front transparent substrate 20 can be omitted. still,
At this time, it is preferable to provide an insulating protective film on the extraction electrodes 14a and 14b in order to insulate and protect the extraction electrodes 14a and 14b.
【００２９】上記した実施の形態は、太陽電池装置とし
て非晶質シリコン太陽電池を用いたが、これに限らず結
晶系シリコン、化合物半導体等を主材料にした太陽電池
装置にも適用できる。Although the above-described embodiment uses an amorphous silicon solar cell as the solar cell device, the present invention is not limited to this and can be applied to a solar cell device using crystalline silicon, a compound semiconductor, or the like as a main material.
【００３０】[0030]
【発明の効果】以上説明したように、この発明の太陽電
池装置を用いることにより、優れた外観の太陽電池パネ
ルを容易に且つ歩留まり良く作成することができる。As described above, by using the solar cell device of the present invention, a solar cell panel having an excellent appearance can be easily manufactured with a high yield.
【図１】この発明の太陽電池装置を示す概略断面図であ
り、（ａ）は一方の端部、（ｂ）は他方の端部を示す。FIG. 1 is a schematic sectional view showing a solar cell device of the present invention, wherein (a) shows one end and (b) shows the other end.
【図２】この発明の太陽電池装置を接続した状態を示す
概略断面図である。FIG. 2 is a schematic sectional view showing a state where the solar cell device of the present invention is connected.
【図３】この発明の太陽電池パネルを示す概略断面図で
ある。FIG. 3 is a schematic sectional view showing a solar cell panel of the present invention.
【図４】従来の太陽電池パネルを示す概略断面図であ
る。FIG. 4 is a schematic sectional view showing a conventional solar cell panel.
１ 太陽電池装置 １０ 基板 １１ 透明電極１１ １２ 発電層１２ １３ 裏面金属電極 １４ａ、１４ｂ 取り出し電極 DESCRIPTION OF SYMBOLS 1 Solar cell device 10 Substrate 11 Transparent electrode 11 12 Power generation layer 12 13 Backside metal electrode 14a, 14b Extraction electrode
Claims (4)
れると共に、各発電素子が電気的に接続された太陽電池
装置であって、前記基板の側面端部の全面に取り出し電
極が設けられていることを特徴とする太陽電池装置。1. A solar cell device in which a plurality of power generating elements are provided on a main surface of a substrate and each of the power generating elements is electrically connected, and an extraction electrode is provided on an entire surface of a side surface of the substrate. A solar cell device characterized in that:
交する方向から所定の角度を有することを特徴とする請
求項１に記載の太陽電池装置。2. The solar cell device according to claim 1, wherein a side edge of the substrate has a predetermined angle from a direction orthogonal to one main surface of the substrate.
前記基板の端部同士で接合されていることにより電気的
接続が行われていることを特徴とする太陽電池パネル。3. A solar cell panel wherein a plurality of solar cell devices according to claim 1 are joined together at the ends of the substrate, thereby making electrical connection.
基板の一主面と直交する方向から所定の角度を有し、こ
の基板の側面端部と接続される他の太陽電池装置の基板
の側面の端部は前記角度と係合する角度に形成されてい
ることを特徴とする請求項３に記載の太陽電池パネル。4. A side surface end of a substrate of one solar cell device has a predetermined angle from a direction orthogonal to one main surface of the substrate, and a side surface of another solar cell device connected to the side surface end of the substrate. The solar cell panel according to claim 3, wherein an end of a side surface of the substrate is formed at an angle engaging with the angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09047473A JP3133269B2 (en) | 1997-03-03 | 1997-03-03 | Solar panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09047473A JP3133269B2 (en) | 1997-03-03 | 1997-03-03 | Solar panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10242491A true JPH10242491A (en) | 1998-09-11 |
| JP3133269B2 JP3133269B2 (en) | 2001-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09047473A Expired - Fee Related JP3133269B2 (en) | 1997-03-03 | 1997-03-03 | Solar panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007180518A (en) * | 2005-11-29 | 2007-07-12 | Nitto Denko Corp | Photovoltaic device and its process for fabrication |
| WO2008102809A1 (en) * | 2007-02-23 | 2008-08-28 | Lintec Corporation | Translucent solar cell module, its manufacturing method, and solar cell panel |
| JP2014505967A (en) * | 2010-12-15 | 2014-03-06 | ダイパワー | Electrical and mechanical interconnection system for photoelectrochemical cell modules |
| JP2021177511A (en) * | 2020-05-07 | 2021-11-11 | 株式会社カネカ | Solar cell, solar cell module, and solar cell manufacturing method |
-
1997
- 1997-03-03 JP JP09047473A patent/JP3133269B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007180518A (en) * | 2005-11-29 | 2007-07-12 | Nitto Denko Corp | Photovoltaic device and its process for fabrication |
| WO2008102809A1 (en) * | 2007-02-23 | 2008-08-28 | Lintec Corporation | Translucent solar cell module, its manufacturing method, and solar cell panel |
| US7804021B2 (en) | 2007-02-23 | 2010-09-28 | Lintec Corporation | Light transmissible solar cell module, process for manufacturing same, and solar cell panel thereof |
| US7812248B2 (en) | 2007-02-23 | 2010-10-12 | Lintec Corporation | Light transmissible solar cell module, process for manufacturing same, and solar cell panel thereof |
| JP5415252B2 (en) * | 2007-02-23 | 2014-02-12 | リンテック株式会社 | Translucent solar cell module, method for manufacturing the same, and solar cell panel |
| JP2014505967A (en) * | 2010-12-15 | 2014-03-06 | ダイパワー | Electrical and mechanical interconnection system for photoelectrochemical cell modules |
| JP2021177511A (en) * | 2020-05-07 | 2021-11-11 | 株式会社カネカ | Solar cell, solar cell module, and solar cell manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3133269B2 (en) | 2001-02-05 |
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