JPH02151079A - Manufacture of solar cell - Google Patents
Manufacture of solar cellInfo
- Publication number
- JPH02151079A JPH02151079A JP63305413A JP30541388A JPH02151079A JP H02151079 A JPH02151079 A JP H02151079A JP 63305413 A JP63305413 A JP 63305413A JP 30541388 A JP30541388 A JP 30541388A JP H02151079 A JPH02151079 A JP H02151079A
- Authority
- JP
- Japan
- Prior art keywords
- interconnector
- solar cell
- welded
- electrode
- covered
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000006059 cover glass Substances 0.000 abstract description 8
- 229910052709 silver Inorganic materials 0.000 abstract description 5
- 239000004332 silver Substances 0.000 abstract description 5
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 125000004430 oxygen atom Chemical group O* 0.000 description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
【発明の詳細な説明】
（産業上の利用分野）
本発明は宇宙用の太陽電池、又は地上用としてもインタ
コネクタの劣化を防止する必要のある場所で用いられる
、太陽電池のインタコネクタの接続法の改良に関するも
のである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to the connection of solar cell interconnectors used in space solar cells or in places where it is necessary to prevent interconnectors from deteriorating on the ground. It concerns the improvement of the law.
（従来の技術〕
第２図は従来の宇宙用太陽電池の一例の使用状態の略断
面図である。(Prior Art) FIG. 2 is a schematic cross-sectional view of an example of a conventional space solar cell in use.
太陽電池セル１を他の太陽電池セル１に電気的に接続す
るには、主として銀のインタコネクタ４が使用されてい
る。太陽電池１０表面には、反射防止膜５としてＳ ｉ
ｏｓ！ 、 ＴｉＯ２，Ａｒ１０ｇ等の金属酸化物が単
層あるいは複層で形成されている。その表面に接着剤２
ｔ−介してカバーガラス３が設けられている。Silver interconnectors 4 are mainly used to electrically connect solar cells 1 to other solar cells 1 . The surface of the solar cell 10 is coated with Si as an antireflection film 5.
os! , TiO2, Ar10g, etc. are formed in a single layer or in multiple layers. Glue 2 on the surface
A cover glass 3 is provided through the t-hole.
太陽電池１とインタコネクタ４との接続は、太陽電池の
表面の反射防止膜５′１を形成後、インタコネクタの接
続部の反射防止膜を除去するか、又はその部分に反射防
止膜を形成しないようにし、その部分にイン夛コネクタ
４を溶接して接続していた。インタコネクタ４の表面に
は特別の被覆は施されていなかった。カバーガラス３の
表面−に反射防止膜５ｔ−設ける場合もある。The connection between the solar cell 1 and the interconnector 4 is achieved by forming the anti-reflection film 5'1 on the surface of the solar cell and then removing the anti-reflection film at the connecting part of the interconnector, or forming an anti-reflection film on that part. In order to prevent this from happening, the embedded connector 4 was welded and connected to that part. No special coating was applied to the surface of the interconnector 4. An antireflection film 5t may be provided on the surface of the cover glass 3 in some cases.
以上のような複数の太陽電池セル１．１、・・・が接着
剤７ｔ−介して基板６に取付けられている。A plurality of solar cells 1.1, . . . as described above are attached to the substrate 6 via an adhesive 7t.
（発明が解決しようとする課題）
宇宙用の太陽電池は、地上２００〜６００ｈの空間を７
，９ム／ｓｅａ以上の速度で飛行する人工衛星のような
物体に搭載されている。この空間の大気の主成分である
酸素原子と人工衛星とは、第２因に示されるように毎秒
数−の速度で衝突するため、衛星の表面材料は、酸素原
子と反応し材料の劣化を起す。劣化の程度は、表面材料
によって異なるが、太陽電池関係では、インタコネクタ
の銀が、劣化の大きいものとして予想される。通常、イ
ンタコネクタは数十μｍの厚さであり、衛星の姿勢や、
軌道によっても異なるが、衛星の寿命よりインタコネク
タの劣化の方が短期間で発生し、その厚さが減少し、断
線の故障音生ずる可能性がある。(Problem to be solved by the invention) Solar cells for space use can cover a space of 200 to 600 h above ground.
, mounted on an object such as an artificial satellite that flies at a speed of 9 mm/sea or higher. Oxygen atoms, which are the main component of the atmosphere in this space, collide with the satellite at a rate of several times per second, as shown in the second factor, so the surface material of the satellite reacts with the oxygen atoms, causing material deterioration. cause. The degree of deterioration varies depending on the surface material, but in the context of solar cells, interconnector silver is expected to be degraded to a large extent. Usually, the interconnector is several tens of micrometers thick, and the
Although it varies depending on the orbit, the deterioration of the interconnector occurs in a shorter period of time than the life of the satellite, and its thickness decreases, potentially causing the sound of a disconnection failure.
カバーガラス３は酸素原子に衝突しても、インタコネク
タの銀よりは、酸素原子の影響を受は難く、シかも、場
合によっては、前述のような反射防止膜で覆われており
、これらの金属酸化膜は酸素原子に対しても耐久性があ
ると考えられる。従って、宇宙用又は外気の影響を受は
易い場所で使用される太陽電池の寿命を長くするには、
インタコネクタの寿命全長くする必要がある。Even if the cover glass 3 collides with oxygen atoms, it is less affected by the oxygen atoms than the silver of the interconnector. Metal oxide films are also considered to be durable against oxygen atoms. Therefore, in order to extend the lifespan of solar cells used in space or in locations easily affected by the outside air,
It is necessary to extend the life span of interconnectors.
インタコネクタ４に予め保護膜を設けたもの全太陽電池
セルに溶接することも考えられるが、この場合は次のよ
うな問題がある。第３図はその場合の一例であって、太
陽電池セル１の表面の電極９の部分で、表面の反射防止
膜５は一部分除去されており、その部分に保護膜８を設
けたインタコネクタ４の一端が溶接°されている。イン
タコネクタ４は溶接部１０の周辺では保護膜８を除去す
る必要があり、またその付近には反射防止膜５のない部
分１１が生ずる。これらの表面を接着剤２を介してカバ
ーガラス３で覆っである。このとき、溶接部１０の付近
は接着剤２とカバーガラス３等で覆われているので、酸
素原子の衝突から保護されるが、その外部には保護膜８
によって保護されないインタコネクタ４の一部が露出し
、この部分は酸素原子の衝突にさらされる。このような
部分が生じないためには、溶接に際して、太陽電池セル
１骨電極９とインタコネクタ４の保護膜８との位置合せ
全精度よく行なうか、又は溶接部全体を図の左方へ移動
し、保ｒａ膜８の端部を接着剤２０内部に埋設する必要
がある。しかし、そうすると受光面積が減少することに
なる。It is also conceivable to provide the interconnector 4 with a protective film in advance and weld it to all the solar cells, but in this case there are the following problems. FIG. 3 shows an example of such a case, in which a part of the anti-reflection film 5 on the surface of the solar cell 1 is removed at the electrode 9 part, and an interconnector 4 is provided with a protective film 8 in that part. One end is welded. In the interconnector 4, it is necessary to remove the protective film 8 around the welded portion 10, and a portion 11 where the anti-reflection film 5 is not present is created in the vicinity. These surfaces are covered with a cover glass 3 via an adhesive 2. At this time, the area near the welding part 10 is covered with adhesive 2, cover glass 3, etc., so it is protected from collisions with oxygen atoms, but the area outside is covered with a protective film 8.
A portion of the interconnector 4 that is not protected by is exposed, and this portion is exposed to bombardment by oxygen atoms. In order to prevent such a part from occurring, during welding, the bone electrode 9 of the solar cell 1 and the protective film 8 of the interconnector 4 should be aligned with perfect accuracy, or the entire welded part should be moved to the left in the figure. However, it is necessary to embed the end of the RA retaining film 8 inside the adhesive 20. However, in this case, the light receiving area will be reduced.
（課題を解決するための手段）
本発明においては前述の問題を除くため、インタコネク
タ４と太陽電池セル１の電極９との溶接工程の後、これ
らの表面を覆うように反射防止膜５を形成する工程を設
けた。(Means for Solving the Problem) In the present invention, in order to eliminate the above-mentioned problem, after the welding process between the interconnector 4 and the electrode 9 of the solar cell 1, an antireflection film 5 is applied to cover these surfaces. A forming process was provided.
（作用〕
インタコネクタ４と太陽電池セル１の電極９とは、予め
溶接された後反射防止膜５で表面を榎われているので、
インタコネクタ４の露出部音線くことができ、溶接部１
０ｔカバーガラス３の外部に出すことができるから受光
面積全増加できる。(Function) Since the interconnector 4 and the electrode 9 of the solar cell 1 are welded in advance and then their surfaces are covered with the anti-reflection film 5,
The exposed part of the interconnector 4 can be exposed to sound rays, and the welded part 1
Since the light can be exposed outside the 0t cover glass 3, the total light receiving area can be increased.
（！ｌ！施例）
第１図（ａ）及び（ｂ）は、本発明の実施例の工程を示
す平面図であり、同図（ｃ）は最終の状態における要部
の拡大断面図である。(!l! Example) Figures 1 (a) and (b) are plan views showing the steps of an example of the present invention, and Figure 1 (c) is an enlarged sectional view of the main parts in the final state. be.
第１図（＆）において、公知の方法で製造された太陽電
池セル１の電極９に、例えば銀で作られたインタコネク
タ４の−＠１を溶接する。In FIG. 1 (&), -@1 of an interconnector 4 made of silver, for example, is welded to an electrode 9 of a solar cell 1 manufactured by a known method.
次に同図（ｂ）に示されるように、溶接部１０ｔ″含む
太陽電池セル１とインタコネクタ４との表面を、保護膜
としても作用する反射防止膜５によって被覆する。Ｓ
ｉ０２ 、 ＴｉＯ２，１１２０ａ等の金属酸化膜を単
層又は複層蒸着することによって形成される。Next, as shown in FIG. 5B, the surfaces of the solar cell 1 and the interconnector 4, including the welded portion 10t'', are coated with an antireflection film 5 that also acts as a protective film.S
It is formed by depositing a single layer or multiple layers of metal oxide films such as i02, TiO2, and 1120a.
インタコネクタ４の他端は通常隣接する太陽電池セルの
裏面に溶接されるので、ここには保護膜を必要としない
。Since the other end of the interconnector 4 is usually welded to the back surface of an adjacent solar cell, no protective film is required here.
第１図（ｃ）はインタコネクタ４と電極９との溶接部１
０の拡大断面図であって、第３図の従来例と同一の部分
は同一符号で表わされている。同図においてインタコネ
クタ４及びそれと電極９との溶接部１０及びその付近は
全て反射防止膜５によって被覆され露出している部分が
ない。FIG. 1(c) shows the welded part 1 between the interconnector 4 and the electrode 9.
0, in which the same parts as in the conventional example of FIG. 3 are denoted by the same reference numerals. In the figure, the interconnector 4, the welded portion 10 between it and the electrode 9, and the vicinity thereof are all covered with an antireflection film 5, and there are no exposed parts.
（発明の効果ン
インタコネクタの保護材料として、表面反射防止膜とし
て使用される材料と同一の金属酸化膜を用いることは、
製造工程において、材料及び製造装置の共通化を図るこ
とが可能となるだけでなく、材料の組合せによる電蝕等
の問題を防止することができる。(The effect of the invention is that the use of the same metal oxide film as the material used as the surface anti-reflection film as the protective material for the interconnector
In the manufacturing process, it is not only possible to use common materials and manufacturing equipment, but also to prevent problems such as electrolytic corrosion due to the combination of materials.
マ九、太陽電池の表面の反射防止膜と、インタコネクタ
及び溶接部の保護膜形成が同時にできるので、材料、工
数等を減少することができる。Finally, since the anti-reflection film on the surface of the solar cell and the protective film on the interconnector and welding parts can be formed at the same time, materials, man-hours, etc. can be reduced.
太陽電池の表面の反射防止膜形成時に用いていたメタル
マスクの寸法精度を粗くすることができ、メタルマスク
の加工費用を低く、かつ使用回数を増加することができ
る。The dimensional accuracy of the metal mask used when forming the antireflection film on the surface of the solar cell can be made rougher, the processing cost of the metal mask can be lowered, and the number of times it can be used can be increased.
インタコネクタの露出部がなくなるので、カバーガラス
との位置精度を考慮する必要がなくなる。Since there is no exposed portion of the interconnector, there is no need to consider positional accuracy with respect to the cover glass.
第１図（ａ）及び（ｂ）は本発明の一実施例の工程を示
す平面図、同図（ｃ）はその要部の拡大断面図、第２図
は宇宙用太陽電池の従来例の使用状態の略断面図、第３
図は好ましくない例の要部拡大断面図である。FIGS. 1(a) and (b) are plan views showing the steps of an embodiment of the present invention, FIG. 1(c) is an enlarged cross-sectional view of the main parts, and FIG. Schematic sectional view of usage state, 3rd
The figure is an enlarged sectional view of a main part of an unfavorable example.
Claims (1)
、溶接部を含む太陽電池とインタコネクタとの表面を反
射防止膜兼保護膜で被覆する工程とを有することを特徴
とする太陽電池の製法1. A method for manufacturing a solar cell, comprising the steps of welding the electrodes of the solar cell and the interconnector, and coating the surfaces of the solar cell and the interconnector, including the welded portion, with an antireflection film and a protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63305413A JPH02151079A (en) | 1988-12-01 | 1988-12-01 | Manufacture of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63305413A JPH02151079A (en) | 1988-12-01 | 1988-12-01 | Manufacture of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02151079A true JPH02151079A (en) | 1990-06-11 |
Family
ID=17944835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63305413A Pending JPH02151079A (en) | 1988-12-01 | 1988-12-01 | Manufacture of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02151079A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05267705A (en) * | 1991-10-04 | 1993-10-15 | Telefunken Syst Technik Ag | Thin solar cell and method of manufacturing therefor |
| WO2009079307A2 (en) * | 2007-12-17 | 2009-06-25 | Qualcomm Mems Technologies, Inc. | Photovoltaics with interferometric ribbon masks |
| US8054528B2 (en) | 2004-09-27 | 2011-11-08 | Qualcomm Mems Technologies Inc. | Display device having an array of spatial light modulators with integrated color filters |
| US8094362B2 (en) | 2004-03-06 | 2012-01-10 | Qualcomm Mems Technologies, Inc. | Method and system for color optimization in a display |
| US8848294B2 (en) | 2010-05-20 | 2014-09-30 | Qualcomm Mems Technologies, Inc. | Method and structure capable of changing color saturation |
| US8872085B2 (en) | 2006-10-06 | 2014-10-28 | Qualcomm Mems Technologies, Inc. | Display device having front illuminator with turning features |
| US8928967B2 (en) | 1998-04-08 | 2015-01-06 | Qualcomm Mems Technologies, Inc. | Method and device for modulating light |
| US8971675B2 (en) | 2006-01-13 | 2015-03-03 | Qualcomm Mems Technologies, Inc. | Interconnect structure for MEMS device |
| US9019590B2 (en) | 2004-02-03 | 2015-04-28 | Qualcomm Mems Technologies, Inc. | Spatial light modulator with integrated optical compensation structure |
| US9019183B2 (en) | 2006-10-06 | 2015-04-28 | Qualcomm Mems Technologies, Inc. | Optical loss structure integrated in an illumination apparatus |
| US9025235B2 (en) | 2002-12-25 | 2015-05-05 | Qualcomm Mems Technologies, Inc. | Optical interference type of color display having optical diffusion layer between substrate and electrode |
| US9110289B2 (en) | 1998-04-08 | 2015-08-18 | Qualcomm Mems Technologies, Inc. | Device for modulating light with multiple electrodes |
-
1988
- 1988-12-01 JP JP63305413A patent/JPH02151079A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05267705A (en) * | 1991-10-04 | 1993-10-15 | Telefunken Syst Technik Ag | Thin solar cell and method of manufacturing therefor |
| US8928967B2 (en) | 1998-04-08 | 2015-01-06 | Qualcomm Mems Technologies, Inc. | Method and device for modulating light |
| US9110289B2 (en) | 1998-04-08 | 2015-08-18 | Qualcomm Mems Technologies, Inc. | Device for modulating light with multiple electrodes |
| US9025235B2 (en) | 2002-12-25 | 2015-05-05 | Qualcomm Mems Technologies, Inc. | Optical interference type of color display having optical diffusion layer between substrate and electrode |
| US9019590B2 (en) | 2004-02-03 | 2015-04-28 | Qualcomm Mems Technologies, Inc. | Spatial light modulator with integrated optical compensation structure |
| US8094362B2 (en) | 2004-03-06 | 2012-01-10 | Qualcomm Mems Technologies, Inc. | Method and system for color optimization in a display |
| US8054528B2 (en) | 2004-09-27 | 2011-11-08 | Qualcomm Mems Technologies Inc. | Display device having an array of spatial light modulators with integrated color filters |
| US8971675B2 (en) | 2006-01-13 | 2015-03-03 | Qualcomm Mems Technologies, Inc. | Interconnect structure for MEMS device |
| US8872085B2 (en) | 2006-10-06 | 2014-10-28 | Qualcomm Mems Technologies, Inc. | Display device having front illuminator with turning features |
| US9019183B2 (en) | 2006-10-06 | 2015-04-28 | Qualcomm Mems Technologies, Inc. | Optical loss structure integrated in an illumination apparatus |
| WO2009079307A3 (en) * | 2007-12-17 | 2009-08-13 | Qualcomm Mems Technologies Inc | Photovoltaics with interferometric ribbon masks |
| WO2009079307A2 (en) * | 2007-12-17 | 2009-06-25 | Qualcomm Mems Technologies, Inc. | Photovoltaics with interferometric ribbon masks |
| US8848294B2 (en) | 2010-05-20 | 2014-09-30 | Qualcomm Mems Technologies, Inc. | Method and structure capable of changing color saturation |
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