CN108055005A - A kind of light decay method of cell piece - Google Patents
A kind of light decay method of cell piece Download PDFInfo
- Publication number
- CN108055005A CN108055005A CN201711352591.9A CN201711352591A CN108055005A CN 108055005 A CN108055005 A CN 108055005A CN 201711352591 A CN201711352591 A CN 201711352591A CN 108055005 A CN108055005 A CN 108055005A
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- CN
- China
- Prior art keywords
- light decay
- cell piece
- transparent vessel
- illumination
- light
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000005286 illumination Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
-
- 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
This application discloses a kind of light decay method of cell piece, including：Test the initial electrical performance of cell piece；The cell piece is put into transparent vessel；It is sealed after the transparent vessel is vacuumized；Illumination is carried out to the transparent vessel for accommodating the cell piece；Electrical property after the light decay of the cell piece is tested, obtains light decay result.The light decay method for the above-mentioned cell piece that the application provides can simplify light decay flow, reduce testing cost, improve test accuracy.
Description
Technical field
The invention belongs to photovoltaic apparatus technical field, more particularly to a kind of light decay method of cell piece.
Background technology
At present, boron-doping P-type crystal silicon solar cell is the product for occupying photovoltaic market more than 70%, however, this kind of sun
Battery is present with the phenomenon that efficiency declines when in use, which is referred to as photo attenuation (Light-induced
degradation：LID), it is 1% -2% that polycrystalline cell decay ratio is opposite, and monocrystalline attenuation ratio is up to 3% -5%.Mesh
It is preceding it is believed that photo attenuation is to caused by the B-O in silicon, the B-O is to easily capturing few son so that under minority carrier life time
Drop, causes battery conversion efficiency to decline, i.e. photo attenuation phenomenon.
Light decay research is exactly that cell piece is placed under light source to be irradiated, and the electric property tested after its pre-irradiation simultaneously obtains
Corresponding optical attenuation amplitude.The optical attenuation situation of cell piece is studied generally there are two types of method, one kind is to be positioned over cell piece
Illumination is carried out in the light decay case of simulated solar optical generator, but this general cost of light decay case is higher, and the light source of its stabilization
Setting can not simulate the actual conditions that outdoor sunlight changes at any time；Another kind is that cell piece is made component, and component is placed
In in the light decay case of simulated solar optical generator or outdoor, prolonged illumination is carried out, but this method can not directly test electricity
The electric property of pond piece, and the attenuation such as encapsulation loss during establishment of component, EVA backboards will be also included into optical attenuation, be led
Cause the actual optical attenuation of cell piece bigger than normal.
The content of the invention
To solve the above problems, the present invention provides a kind of light decay methods of cell piece, light decay flow can be simplified, reduced
Testing cost improves test accuracy.
A kind of light decay method of cell piece provided by the invention, including：
Test the initial electrical performance of cell piece；
The cell piece is put into transparent vessel；
It is sealed after the transparent vessel is vacuumized；
Illumination is carried out to the transparent vessel for accommodating the cell piece；
Electrical property after the light decay of the cell piece is tested, obtains light decay result.
Preferably, in the light decay method of above-mentioned cell piece, the transparent vessel is transparent valve bag.
Preferably, in the light decay method of above-mentioned cell piece, electrical property wraps after the initial electrical performance and the light decay
Include open-circuit voltage, short circuit current flow, fill factor, curve factor and photoelectric conversion efficiency.
Preferably, it is described that the transparent vessel is vacuumized as with 0.1L/min in the light decay method of above-mentioned cell piece
Rate the transparent vessel is vacuumized.
Preferably, in the light decay method of above-mentioned cell piece, the described pair of transparent vessel for accommodating the cell piece into
Row illumination is：
The transparent vessel is placed in light decay case or outdoor carry out illumination.
Preferably, in the light decay method of above-mentioned cell piece, the light decay result that obtains is：
The second photoelectricity after the first photoelectric conversion efficiency and the light decay in the initial electrical performance in electrical property
Transfer efficiency calculates the light decay result.
By foregoing description, the light decay method of cell piece provided by the invention, due to including testing the first of cell piece
Beginning electrical property；The cell piece is put into transparent vessel；It is sealed after the transparent vessel is vacuumized；To accommodating
The transparent vessel of the cell piece carries out illumination；Test electrical property after the light decay of the cell piece, obtain light decay as a result, because
This can simplify light decay flow, reduce testing cost, improve test accuracy.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the schematic diagram of the light decay method of the first cell piece provided by the embodiments of the present application.
Specific embodiment
The core concept of the present invention is a kind of light decay method for providing cell piece, can simplify light decay flow, reduces and surveys
Cost is tried, improves test accuracy.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
The light decay method of the first cell piece provided by the embodiments of the present application is as shown in Figure 1, Fig. 1 carries for the embodiment of the present application
The schematic diagram of the light decay method of the first cell piece supplied, this method comprises the following steps：
S1：Test the initial electrical performance of cell piece；
Wherein described cell piece can be more than a piece of, and in this step these cell pieces are carried out with preliminary test, with
This foundation as the electrical property before illumination, this method are suitable for various forms of cell pieces.
S2：The cell piece is put into transparent vessel；
It should be noted that preferably cell piece is kept flat the purpose for the arrangement is that making the intensity of illumination phase inside and outside container
Together, which selects high light-transmitting materials, but species is not intended to limit.
S3：It is sealed after the transparent vessel is vacuumized；
Here it is the air of removal the inside, especially oxygen to the purpose that transparent vessel vacuumizes, then after good seal,
It is ensured that oxidative factors there will be no to influence test result in subsequent During Illumination.
S4：Illumination is carried out to the transparent vessel for accommodating the cell piece；
Stop since transparent vessel will not be formed illumination, carry out illumination in this case, be equal to battery
The outdoor placement of piece is irradiated in the sun, ensures the accuracy of test result.
S5：Electrical property after the light decay of the cell piece is tested, obtains light decay result.
Here with electrical property after light decay compared with initial electrical performance, it becomes possible to obtain the shadow that photo attenuation is brought
It rings, due to eliminating the influence of oxidation, test result is more accurate, and this method and step is simple, and testing efficiency is high.
By foregoing description, the light decay method of the first cell piece provided by the embodiments of the present application, due to including surveying
Try the initial electrical performance of cell piece；The cell piece is put into transparent vessel；It is carried out after the transparent vessel is vacuumized
Sealing；Illumination is carried out to the transparent vessel for accommodating the cell piece；Electrical property after the light decay of the cell piece is tested, is obtained
To light decay as a result, light decay flow therefore can be simplified, testing cost is reduced, improves test accuracy.
The light decay method of second of cell piece provided by the embodiments of the present application is in the light decay side of the first above-mentioned cell piece
On the basis of method, following technical characteristic is further included：
The transparent vessel is transparent valve bag.
It should be noted that not only good seal performance, transparency height will not stop illumination to this transparent valve bag, and
It is easily deformed upon in vacuum so that work efficiency higher.
The light decay method of the third cell piece provided by the embodiments of the present application is in the light decay side of the first above-mentioned cell piece
On the basis of method, following technical characteristic is further included：
Electrical property includes open-circuit voltage, short circuit current flow, fill factor, curve factor and light after the initial electrical performance and the light decay
Photoelectric transformation efficiency.
In general, be more that light decay amplitude is characterized using photoelectric conversion efficiency (Eta), it as a result can be more accurate, when
It is also more preferable so to combine other parameter, but is not construed as limiting here.
The light decay method of 4th kind of cell piece provided by the embodiments of the present application, is in the light decay side of the first above-mentioned cell piece
On the basis of method, following technical characteristic is further included：
It is described that the transparent vessel is vacuumized to vacuumize the transparent vessel with the rate of 0.1L/min.
Since cell piece has the possibility of rupture, vacuum is not premised on damaging cell piece, with this relatively slow
Rate vacuumize, until the inner wall of transparent vessel is close to the surface of cell piece.
The light decay method of 5th kind of cell piece provided by the embodiments of the present application, be it is above-mentioned the first to the 4th kind of cell piece
Light decay method in it is any on the basis of, further include following technical characteristic：
The described pair of transparent vessel for accommodating the cell piece carries out illumination and is：
The transparent vessel is placed in light decay case or outdoor carry out illumination.
It it should be noted that there is vacuum environment just because of cell piece, therefore will not aoxidize, no matter be placed on light decay case
Interior or outdoor, the variation that can ensure its efficiency is all as caused by illumination, preferably excludes other unfavorable factors.
The light decay method of 6th kind of cell piece provided by the embodiments of the present application, is in the light decay side of the third above-mentioned cell piece
On the basis of method, following technical characteristic is further included：
The light decay result that obtains is：
The second photoelectricity after the first photoelectric conversion efficiency and the light decay in the initial electrical performance in electrical property
Transfer efficiency calculates the light decay result.
In this case, the first photoelectric conversion efficiency is Eta1, the second photoelectric conversion efficiency is Eta2, obtained light decay
As a result it is (Eta1-Eta2)/Eta1× 100%.
The light decay method of above-mentioned cell piece, step is simple, at low cost, can be not only used for the light of the indoor stabilized light source of cell piece
Decline research, and available for the light decay research under outdoor sunlight at any time situation of change.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (6)
1. a kind of light decay method of cell piece, which is characterized in that including：
Test the initial electrical performance of cell piece；
The cell piece is put into transparent vessel；
It is sealed after the transparent vessel is vacuumized；
Illumination is carried out to the transparent vessel for accommodating the cell piece；
Electrical property after the light decay of the cell piece is tested, obtains light decay result.
2. the light decay method of cell piece according to claim 1, which is characterized in that the transparent vessel is transparent self-styled
Bag.
3. the light decay method of cell piece according to claim 1, which is characterized in that the initial electrical performance and the light decay
Electrical property includes open-circuit voltage, short circuit current flow, fill factor, curve factor and photoelectric conversion efficiency afterwards.
4. the light decay method of cell piece according to claim 1, which is characterized in that described to be vacuumized to the transparent vessel
To be vacuumized with the rate of 0.1L/min to the transparent vessel.
5. according to the light decay method of claim 1-4 any one of them cell pieces, which is characterized in that described pair accommodates the electricity
The transparent vessel of pond piece carries out illumination：
The transparent vessel is placed in light decay case or outdoor carry out illumination.
6. the light decay method of cell piece according to claim 3, which is characterized in that the light decay result that obtains is：
The second opto-electronic conversion after the first photoelectric conversion efficiency and the light decay in the initial electrical performance in electrical property
Light decay result described in efficiency calculation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352591.9A CN108055005A (en) | 2017-12-15 | 2017-12-15 | A kind of light decay method of cell piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352591.9A CN108055005A (en) | 2017-12-15 | 2017-12-15 | A kind of light decay method of cell piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108055005A true CN108055005A (en) | 2018-05-18 |
Family
ID=62133408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711352591.9A Pending CN108055005A (en) | 2017-12-15 | 2017-12-15 | A kind of light decay method of cell piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108055005A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880471A (en) * | 2018-07-11 | 2018-11-23 | 英利能源（中国）有限公司 | Attenuation test of solar battery method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961295A (en) * | 1995-08-22 | 1997-03-07 | Mitsui Toatsu Chem Inc | Testing method for reflector degradation in light acceleration |
| CN101762779A (en) * | 2010-01-18 | 2010-06-30 | 上海晶澳太阳能光伏科技有限公司 | Photoinduced attenuation testing system of battery sheet and testing method thereof |
| CN104505426A (en) * | 2014-10-24 | 2015-04-08 | 横店集团东磁股份有限公司 | Method and device for improving light degradation of crystalline silicon solar cell module |
| CN104505427A (en) * | 2014-10-24 | 2015-04-08 | 横店集团东磁股份有限公司 | Method and device for improving LID and PID of crystalline silicon solar cell piece |
| CN105261677A (en) * | 2015-11-18 | 2016-01-20 | 浙江晶科能源有限公司 | Method for rapid light-induced degradation of solar cell piece |
-
2017
- 2017-12-15 CN CN201711352591.9A patent/CN108055005A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0961295A (en) * | 1995-08-22 | 1997-03-07 | Mitsui Toatsu Chem Inc | Testing method for reflector degradation in light acceleration |
| CN101762779A (en) * | 2010-01-18 | 2010-06-30 | 上海晶澳太阳能光伏科技有限公司 | Photoinduced attenuation testing system of battery sheet and testing method thereof |
| CN104505426A (en) * | 2014-10-24 | 2015-04-08 | 横店集团东磁股份有限公司 | Method and device for improving light degradation of crystalline silicon solar cell module |
| CN104505427A (en) * | 2014-10-24 | 2015-04-08 | 横店集团东磁股份有限公司 | Method and device for improving LID and PID of crystalline silicon solar cell piece |
| CN105261677A (en) * | 2015-11-18 | 2016-01-20 | 浙江晶科能源有限公司 | Method for rapid light-induced degradation of solar cell piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880471A (en) * | 2018-07-11 | 2018-11-23 | 英利能源（中国）有限公司 | Attenuation test of solar battery method |
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| PB01 | Publication | ||
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Application publication date: 20180518 |