JPH01307279A - Solar cell - Google Patents
Solar cellInfo
- Publication number
- JPH01307279A JPH01307279A JP63138978A JP13897888A JPH01307279A JP H01307279 A JPH01307279 A JP H01307279A JP 63138978 A JP63138978 A JP 63138978A JP 13897888 A JP13897888 A JP 13897888A JP H01307279 A JPH01307279 A JP H01307279A
- Authority
- JP
- Japan
- Prior art keywords
- silicon substrate
- electrode
- section
- picture frame
- contact section
- 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
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 17
- 229910052710 silicon Inorganic materials 0.000 abstract description 17
- 239000010703 silicon Substances 0.000 abstract description 17
- 239000000758 substrate Substances 0.000 abstract description 17
- 238000005336 cracking Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000000126 substance 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は太陽電池の特ＫｗＬ極の構造に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a special KwL pole of a solar cell.
′ （従来の技術）
従来、太陽電池の裏面電極としては、シリコン基板の裏
面全面に電極を設けた全面電極と、周辺部に電極を設け
ていない部分を有するピクチュアフレーム電極とがある
。(Prior Art) Conventionally, back electrodes of solar cells include full-surface electrodes in which electrodes are provided on the entire back surface of a silicon substrate, and picture frame electrodes in which electrodes are not provided in peripheral areas.
第５図〜第８図は、全面電極の一例である。第５図の平
面図において方形のシリコン基板４の表面１に櫛状電極
２が形成され、その一端には巾の広いコンタクト部８が
形成されている。第６図はその裏面を示すもので、シリ
コン基板４の裏面５の全面罠わたり裏面電極６が形成さ
れている。第７図は第５図のｙｌ −Ｙｌ 断面を示す
ものである。5 to 8 are examples of full-surface electrodes. In the plan view of FIG. 5, a comb-shaped electrode 2 is formed on the surface 1 of a rectangular silicon substrate 4, and a wide contact portion 8 is formed at one end thereof. FIG. 6 shows the back surface, and a back electrode 6 is formed over the entire back surface 5 of the silicon substrate 4. As shown in FIG. FIG. 7 shows the yl-Yl cross section of FIG. 5.
第８図はｙ２−ｙ２断面を示す。FIG. 8 shows a y2-y2 cross section.
第９図〜第１２図は、ピクチュアフレーム電極の一例で
ある。第９図の平面図において、表面の電極の配列は、
第５図の場合と同様である。第１０図はその裏面を示す
もので、シリコン基板４の裏面５の外周部には余白を設
け、その内部に裏面電極７が形成されている。第１１図
及び第１２図は、それぞれ第９図のＹ８−Ｙ８＋Ｙ４
ｙ４ 断面を示す。9 to 12 are examples of picture frame electrodes. In the plan view of FIG. 9, the arrangement of the electrodes on the surface is as follows:
This is the same as the case in FIG. FIG. 10 shows the back surface of the silicon substrate 4. A margin is provided at the outer periphery of the back surface 5 of the silicon substrate 4, and a back electrode 7 is formed inside the margin. Figures 11 and 12 are Y8-Y8+Y4 in Figure 9, respectively.
y4 shows the cross section.
（発明が解決しようとする課題）
裏面に全面電極を設けた太陽電池は、個々のセルを作製
する時に電極を切断するため、その切断面から水分その
他の異物が侵入し、電極が腐蝕し易く、耐候性が悪いと
いう欠点がある。(Problem to be solved by the invention) In solar cells with full-surface electrodes on the back side, the electrodes are cut when producing individual cells, so moisture and other foreign substances enter through the cut surfaces and the electrodes are likely to corrode. , has the disadvantage of poor weather resistance.
また、裏面にピクチュアフレーム電極を設けた太陽電池
は、表面？ｆｆ： 極のコンタクト部３にコネクタウリ
ード線等を溶接する場合、加圧されることがあり、裏面
電極７の端部がコンタクト部３の位置とずれているとき
、段差のため、加圧によりシリコン基板４が割れ易いと
いう欠点があった。Also, does a solar cell with a picture frame electrode on the back side have a front side? ff: When welding a connector lead wire etc. to the contact part 3 of the pole, pressure may be applied, and when the end of the back electrode 7 is misaligned with the position of the contact part 3, the pressure may There was a drawback that the silicon substrate 4 was easily broken.
（ｌ１題を解決するための手段）
本発明においては、前記の問題を解決するため、表面電
極のコンタクト部に対応するように裏面のピクチュアフ
レーム！［の一部を拡張させた。(Means for Solving Problem 11) In the present invention, in order to solve the above problem, the picture frame on the back side is arranged so as to correspond to the contact part of the front electrode. Expanded part of [.
（作用） ・
表面電極のコンタクト部に対応する裏面には、ピクチュ
アフレーム電極の一部が拡張されているので、コンタク
ト部が加圧されても段差がないので、シリコン基板は割
れ難く、またピクチュアフレーム構造であるから、セル
を分割する場合電極が損傷されない。(Function) - A part of the picture frame electrode is expanded on the back side corresponding to the contact part of the front electrode, so there is no step even if the contact part is pressurized, so the silicon substrate is difficult to break, and the picture frame electrode is Because of the frame structure, the electrodes are not damaged when dividing the cell.
（実施例） 第１図は本発明の一実施例の太陽電池の平面図である。(Example) FIG. 1 is a plan view of a solar cell according to an embodiment of the present invention.
その表面の構造は、第５図又は第９図に示される従来例
と同様である。第２図はその裏面を示すもので、シリコ
ン基板４の裏面５のピクチュアフレーム電極９はその一
端の表面電極のコンタクト部３に対応する部分に拡張部
８が設けられている。この拡張部分８０面積は必らずし
もコンタクト部３０面積と同一である会費はなく、コン
タクト部８が加圧された場合シリコン基板４に過大な圧
力が加えられない程度であればよい。第８図及び第４図
は、それぞれ第１図のＹ６−Ｙ５．Ｙ６−ｙ６断面を示
す。The surface structure is similar to the conventional example shown in FIG. 5 or 9. FIG. 2 shows the back side thereof, and the picture frame electrode 9 on the back side 5 of the silicon substrate 4 is provided with an extended portion 8 at one end thereof in a portion corresponding to the contact portion 3 of the front surface electrode. The area of this expanded portion 80 does not necessarily have to be the same as the area of the contact portion 30, and it is sufficient as long as it does not apply excessive pressure to the silicon substrate 4 when the contact portion 8 is pressurized. 8 and 4 are Y6-Y5. of FIG. 1, respectively. A Y6-y6 cross section is shown.
裏面電極９の形状は、メタルマスク又はフォトエツチン
グ技術を用いて容易に形成することができる。The shape of the back electrode 9 can be easily formed using a metal mask or photoetching technique.
（発明の効果）
本発明によれば、コンタクト部にコネクタ、リード線等
を溶接する時、シリコン基板が割れ難く、また耐候性に
すぐれた太陽電池を製造することができる。(Effects of the Invention) According to the present invention, it is possible to manufacture a solar cell in which the silicon substrate is difficult to break when welding connectors, lead wires, etc. to the contact portions and has excellent weather resistance.
第１図は本発明の一実施例の平面図、第２図はその底面
図、＠８図及び第４図はその断面図である。第５図は従
来の一例の平面図、第６図はその底面図、第７図及び第
８図はその断面図である。
第９図は従来の他の例の平面図、第１０図はその底面図
、第１１図及び第１２図はその断面図である。
２・・・櫛状電極、８・・・コンタクト部、４・・・シ
リコン基板、８・・・拡張部、９・・・裏面１！極属２
図 ｍ６図FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a bottom view thereof, and FIGS. 8 and 4 are sectional views thereof. FIG. 5 is a plan view of a conventional example, FIG. 6 is a bottom view thereof, and FIGS. 7 and 8 are sectional views thereof. FIG. 9 is a plan view of another conventional example, FIG. 10 is a bottom view thereof, and FIGS. 11 and 12 are sectional views thereof. 2... Comb-shaped electrode, 8... Contact portion, 4... Silicon substrate, 8... Extension portion, 9... Back surface 1! Gokugen 2
Figure m6 figure
Claims (1)
を形成し、かつ他方の面の電極の外部との接続部に対応
する前記の一方の面の部分に前記の一方の面の電極が拡
張されている太陽電池1. Form a part where no electrode is provided around the electrode on one side of the element, and place a part of the one side on the part of the one side corresponding to the connection part with the outside of the electrode on the other side. Solar cells with extended electrodes
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63138978A JPH01307279A (en) | 1988-06-06 | 1988-06-06 | Solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63138978A JPH01307279A (en) | 1988-06-06 | 1988-06-06 | Solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01307279A true JPH01307279A (en) | 1989-12-12 |
Family
ID=15234619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63138978A Pending JPH01307279A (en) | 1988-06-06 | 1988-06-06 | Solar cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01307279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118016741A (en) * | 2024-01-12 | 2024-05-10 | 中山大学 | Thin film solar cell chip with vertical structure and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129884A (en) * | 1974-09-06 | 1976-03-13 | Sharp Kk | |
| JPS59169185A (en) * | 1983-03-09 | 1984-09-25 | リツエンツイア・パテント−フエルヴアルツングス−ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Solar battery |
| JPS60247977A (en) * | 1984-05-23 | 1985-12-07 | Hitachi Ltd | Solar cell |
-
1988
- 1988-06-06 JP JP63138978A patent/JPH01307279A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5129884A (en) * | 1974-09-06 | 1976-03-13 | Sharp Kk | |
| JPS59169185A (en) * | 1983-03-09 | 1984-09-25 | リツエンツイア・パテント−フエルヴアルツングス−ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Solar battery |
| JPS60247977A (en) * | 1984-05-23 | 1985-12-07 | Hitachi Ltd | Solar cell |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118016741A (en) * | 2024-01-12 | 2024-05-10 | 中山大学 | Thin film solar cell chip with vertical structure and preparation method and application thereof |
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