CN102810574A - Electrodes of solar cells - Google Patents
Electrodes of solar cells Download PDFInfo
- Publication number
- CN102810574A CN102810574A CN2011101440861A CN201110144086A CN102810574A CN 102810574 A CN102810574 A CN 102810574A CN 2011101440861 A CN2011101440861 A CN 2011101440861A CN 201110144086 A CN201110144086 A CN 201110144086A CN 102810574 A CN102810574 A CN 102810574A
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- substrate
- conductive layer
- electrode
- solar cell
- adhesive
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- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000010410 layer Substances 0.000 claims abstract 17
- 239000012790 adhesive layer Substances 0.000 claims abstract 11
- 239000000853 adhesive Substances 0.000 claims abstract 10
- 230000001070 adhesive effect Effects 0.000 claims abstract 10
- 239000000463 material Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 2
- 239000011248 coating agent Substances 0.000 description 34
- 238000000576 coating method Methods 0.000 description 34
- 238000000034 method Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
An electrode of a solar cell is disposed on a substrate. The electrode of the solar cell comprises a conductive layer and an adhesive layer. The conductive layer is disposed on the substrate. The adhesion layer is arranged between the conductive layer and the substrate. The adhesive force between the adhesive layer and the substrate is larger than the adhesive force between the conductive layer and the substrate. The electrode of the present invention can be more stably and fixedly attached to the substrate.
Description
Technical field
The present invention relates to a kind of solar cell device, relate in particular to a kind of electrode of solar cell.
Background technology
Solar energy is a kind of clean pollution-free and inexhaustible energy, when solution pollution that present fossil energy faced and problem of shortage, is the focus that attracts most attention always.Because solar cell can be an electric energy with solar energy converting directly, therefore become present considerable research topic.
In present solar cell processing procedure, when forming electrode, normally utilize the mode of screen printing (screen printing) that electrode material is printed to substrate.In addition, when the solar cell module is carried out encapsulation procedure, can connect the electrode of a plurality of solar cells usually, these solar cell serial or parallel connections connected through welding rod (ribbon).
In addition, after connecting the electrode of a plurality of solar cells, can carry out tensile test usually with welding rod, whether can be with test electrode from strippable substrate.Yet for present electrode, the adhesion strength between itself and the substrate often can't meet demand and easily from strippable substrate, thereby has reduced the reliability of solar cell.
Summary of the invention
The present invention provides a kind of electrode of solar cell, has preferable adhesion strength between itself and the substrate.
The present invention proposes a kind of electrode of solar cell, and it is disposed on the substrate.The electrode of this solar cell comprises conductive layer and adhesion coating.Conductive layer is disposed on the substrate.Adhesion coating is disposed between conductive layer and the substrate.Adhesion strength between adhesion coating and the substrate is greater than the adhesion strength between conductive layer and the substrate.
According to the electrode of the described solar cell of the embodiment of the invention, the conductivity of above-mentioned adhesion coating is for example less than the conductivity of conductive layer.
According to the electrode of the described solar cell of the embodiment of the invention, the material of above-mentioned adhesion coating for example is a conducting resinl.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned adhesion coating and the adhesion strength between the substrate are for example greater than 2 newton's stretching resistances, and the adhesion strength between conductive layer and the substrate is for example greater than 1 newton's stretching resistance.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned conductive layer and the adhesion strength between the adhesion coating are for example greater than the adhesion strength between conductive layer and the substrate.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned conductive layer and the adhesion strength between the adhesion coating are for example greater than 3 newton's stretching resistances, and the adhesion strength between conductive layer and the substrate is for example greater than 1 newton's stretching resistance.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned conductive layer for example is positioned on the end face of adhesion coating.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned conductive layer for example coats adhesion coating.
According to the electrode of the described solar cell of the embodiment of the invention, the material of above-mentioned conductive layer comprises metal or conducting resinl.
According to the electrode of the described solar cell of the embodiment of the invention, above-mentioned substrate comprises silicon substrate.
Based on above-mentioned; Because electrode of the present invention is to be made up of adhesion coating and conductive layer; And the adhesion strength between adhesion coating and the substrate makes electrode of the present invention compare and can more surely be attached on the substrate regularly with the electrode of prior art greater than the adhesion strength between conductive layer and the substrate.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Description of drawings
Fig. 1 is the generalized section according to the electrode of the solar cell shown in one embodiment of the invention.
Fig. 2 is the generalized section according to the electrode of the solar cell shown in another embodiment of the present invention.
Reference numeral:
100: substrate
102,102 ': electrode
102a: conductive layer
102b: adhesion coating
Embodiment
Embodiment one
Fig. 1 is the generalized section according to the electrode of the solar cell shown in one embodiment of the invention.Please with reference to Fig. 1, the electrode 102 of solar cell is disposed on the substrate 100.In the present embodiment, substrate 100 is a silicon substrate.That is substrate 100 is the substrate of silicon wafer solar cell.In another embodiment, substrate 100 also can be a glass substrate.That is substrate 100 also can be the substrate of thin-film solar cells.
Importantly; In the present embodiment; Adhesion strength between adhesion coating 102b and the substrate 100 is greater than the adhesion strength between conductive layer 102a and the substrate 100, and the adhesion strength between conductive layer 102a and the adhesion coating 102b is greater than the adhesion strength between conductive layer 102a and the substrate 100.For instance, the adhesion strength between adhesion coating 102b and the substrate 100 is for example greater than 2 newton's pulling force, and the adhesion strength between conductive layer 102a and the substrate 100 is for example greater than 1 newton's pulling force.In addition, the adhesion strength between conductive layer 102a and the adhesion coating 102b is for example greater than 3 newton's pulling force, and the adhesion strength between conductive layer 102a and the substrate 100 is for example greater than 2 newton's pulling force.Because the adhesion strength between adhesion coating 102b and the substrate 100 is greater than the adhesion strength between conductive layer 102a and the substrate 100; Therefore the electrode with prior art (only is made up of conductive layer 102a; It directly is disposed on the substrate 100) compare; When carrying out tensile test, when the electrode of prior art when substrate 100 is peeled off, the electrode 102 of present embodiment still can firmly be attached on the substrate 100.Simultaneously because the adhesion strength between conductive layer 102a and the adhesion coating 102b is greater than the adhesion strength between conductive layer 102a and the substrate 100, so when the electrode of prior art when substrate 100 is peeled off, conductive layer 102a can not peel off from adhesion coating 102b yet.Therefore, the electrode 102 of present embodiment can firmly be attached on the substrate 100, has solved the problem that the reliability of solar cell reduces in the prior art.
Embodiment two
Fig. 2 is the generalized section according to the electrode of the solar cell shown in another embodiment of the present invention.Please with reference to Fig. 2; In the present embodiment, electrode 102 ' is with the difference of the electrode 102 of embodiment one: in electrode 102, conductive layer 102a is positioned at the top of adhesion coating 102b; And in electrode 102 '; Conductive layer 102a also is positioned on the sidewall of adhesion coating 102b except on the end face that is positioned at adhesion coating 102b, and meaning is that conductive layer 102a coats adhesion coating 102b.
In the present embodiment, because conductive layer 102a coats adhesion coating 102b, so conductive layer 102a can more firmly be attached on the adhesion coating 102b.
In sum; In an embodiment of the present invention; Electrode is made up of the adhesion coating and the conductive layer that are stacked in regular turn on the substrate; And therefore the adhesion strength between adhesion coating and the substrate can surely be attached on the substrate by electrode greater than the adhesion strength between conductive layer and the substrate regularly, with the problem of avoiding the solar cell reliability to reduce.
Though the present invention discloses as above with embodiment, so it is not in order to limiting the present invention, any under the those of ordinary skill of technical field, when can doing a little change and retouching, and do not break away from the spirit and scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101440861A CN102810574A (en) | 2011-05-31 | 2011-05-31 | Electrodes of solar cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101440861A CN102810574A (en) | 2011-05-31 | 2011-05-31 | Electrodes of solar cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102810574A true CN102810574A (en) | 2012-12-05 |
Family
ID=47234236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101440861A Pending CN102810574A (en) | 2011-05-31 | 2011-05-31 | Electrodes of solar cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102810574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972069A (en) * | 2017-04-14 | 2017-07-21 | 浙江大学 | A kind of ultra-thin materials novel metal contacts electrode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060270114A1 (en) * | 2003-10-06 | 2006-11-30 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| CN201112391Y (en) * | 2007-08-17 | 2008-09-10 | 王中林 | Electrode of solar energy battery |
| CN101506992A (en) * | 2006-08-09 | 2009-08-12 | 信越半导体股份有限公司 | Method for forming semiconductor substrate and electrode, and method for manufacturing solar cell |
-
2011
- 2011-05-31 CN CN2011101440861A patent/CN102810574A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060270114A1 (en) * | 2003-10-06 | 2006-11-30 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| CN101506992A (en) * | 2006-08-09 | 2009-08-12 | 信越半导体股份有限公司 | Method for forming semiconductor substrate and electrode, and method for manufacturing solar cell |
| CN201112391Y (en) * | 2007-08-17 | 2008-09-10 | 王中林 | Electrode of solar energy battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972069A (en) * | 2017-04-14 | 2017-07-21 | 浙江大学 | A kind of ultra-thin materials novel metal contacts electrode |
| CN106972069B (en) * | 2017-04-14 | 2019-02-15 | 浙江大学 | A new type of ultrathin material-metal contact electrode |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |