CN114813537A - Solar cell acid-resistant detection device and detection method thereof - Google Patents
Solar cell acid-resistant detection device and detection method thereof Download PDFInfo
- Publication number
- CN114813537A CN114813537A CN202210469147.XA CN202210469147A CN114813537A CN 114813537 A CN114813537 A CN 114813537A CN 202210469147 A CN202210469147 A CN 202210469147A CN 114813537 A CN114813537 A CN 114813537A
- Authority
- CN
- China
- Prior art keywords
- box
- solar cell
- acid
- acetic acid
- battery piece
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 239000002253 acid Substances 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 111
- 238000007789 sealing Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 1
- 229940069428 antacid Drugs 0.000 claims 1
- 239000003159 antacid agent Substances 0.000 claims 1
- 230000001458 anti-acid effect Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a solar cell acid-resistant detection device and a detection method thereof. The invention provides a solar cell acid-resistant detection device and a detection method thereof, which are used for effectively evaluating the acid-resistant performance of slurry by testing the contact resistivity and EL images before and after the acid resistance of a cell piece, thereby improving the slurry and improving the performance of the slurry.
Description
Technical Field
The invention belongs to the field of solar cell testing, and particularly relates to a solar cell acid resistance detection device and a detection method thereof.
Background
At present, the solar cell is generally packaged by an EVA (ethylene-vinyl acetate copolymer) adhesive film, in the process of outdoor long-time exposure and use, besides water vapor erosion, the EVA adhesive film can be degraded to generate acetic acid, and the escaped acetic acid can corrode electrode grid lines, welding strips and the like of the solar cell, so that the output power and the safety performance of a photovoltaic module are influenced. Therefore, it is necessary to pay attention to the acetic acid corrosion resistance as an index of the reliability test of the photovoltaic product.
However, the current testing method is generally to use a high temperature and high humidity DH (85 ℃, 85% RH) environment test to evaluate the potential corrosion risk of the photovoltaic product, and the standard testing time is 1000h, and to better evaluate the corrosion resistance of the photovoltaic product, the testing time is also extended to 2000h or 3000 h. Such a long test period is obviously difficult to meet the test requirements in actual production, and is more difficult to deal with the introduction and upgrade of various novel battery and component products. Chinese patent discloses a device and method for detecting acid resistance of slurry [ application No.: 202011072801.0], which discloses an acid-resistant detection device, because the battery pieces are vertically placed, the upper part and the lower part of the same battery piece are unevenly corroded by acetic acid, and a certain area of the battery piece is more serious than other places, thereby influencing data analysis.
Therefore, a new detecting device and a new detecting method are needed to be provided, which can make the battery cell receive acid uniformly and improve the detecting efficiency.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the problems of low detection efficiency and unstable detection result in the prior art, and provides an acid-resistant detection device for a solar cell, which comprises a sealing box, wherein acetic acid placing boxes are arranged at two side corners of the sealing box, a box with one side opened is arranged in the sealing box, a frame is arranged in the box, vent holes are uniformly distributed in the upper side and the lower side of the frame, and a cell fixing clamp is arranged on the upper end surface of the frame.
Further preferably, fans are disposed on the left and right sides and the upper and lower sides of the box.
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) testing the electrical property of the battery piece;
step 2) adding an acetic acid solution and a KCI solution into the acetic acid placing box, and clamping the battery piece through a battery piece fixing clamp;
step 3) horizontally stacking a plurality of whole sealing boxes in a damp-heat test box for heating, and turning on a fan to ensure that acetic acid vapor in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, performing electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry.
Preferably, the concentration of the acetic acid solution is 0.2-0.8%.
Further preferably, the concentration of the KCI solution is 85-99%.
Further optimized, the heating temperature of the damp-heat test box is 70-90 ℃, and the heating time is 10-20 hours.
Further optimized, the electrical properties of step 4 are compared to contact resistivity and EL images.
Has the advantages that: compared with the prior art, the invention has the following specific advantages:
1. according to the invention, the independent seal boxes are arranged, so that the number of single detection is increased, and the detection efficiency is improved.
2. The detection device provided by the invention has the advantages of simple structure, convenience in use, uniform detection environment and detection accuracy improvement.
3. By adopting the detection device and the detection method, the corrosion resistance of the battery piece is rapidly and accurately evaluated by simulating the corrosion reaction of the battery piece in the acetic acid atmosphere and comparing the detection data with the initial data, so that the performance of the slurry is conveniently improved.
Drawings
Fig. 1 is a perspective view of a detection device of the present invention.
In the figure: seal box 1, acetic acid placing box 2, shelf 3, air vent 4, fan 5, battery piece fixation clamp 6, battery piece 7, box 8.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the present invention will be described in further detail with reference to specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of protection of the invention.
The solar cell acid-resistant detection device comprises a sealing box 1, wherein two side corners of the sealing box 1 are fixedly provided with an acetic acid placing box 2, the acetic acid placing box 2 is filled with acetic acid with a certain concentration, a box 8 with one side open is arranged in the sealing box 1, a frame 3 with vent holes 4 uniformly distributed on the upper surface and the lower surface is arranged in the box 8, a cell fixing clamp 6 is arranged on the upper end surface of the frame 3, a cell 7 is flatly placed in the frame 3, and the two sides of the cell 7 are clamped by the cell fixing clamp 6, so that the cell 7 is stably placed in the center of the frame 3. The left side and the right side of box 8 and upper and lower side are equipped with fan 5, and when acetic acid produced steam in the heating of damp heat test box, whole box 8 was covered with to steam, through fan 5 makes steam in the shelf 3 distributes evenly, and the assurance cell 7's two sides receives the corrosivity of acetic acid the same.
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) testing the electrical property of the battery piece;
step 2) adding an acetic acid solution and a KCI solution into the acetic acid placing box 2, and clamping the battery piece through a battery piece fixing clamp 6;
step 3) horizontally stacking a plurality of whole sealing boxes 1 in a damp-heat test box for heating, and turning on a fan to ensure that acetic acid steam in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, performing electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry.
Preferably, the concentration of the acetic acid solution is 0.2-0.8%.
Preferably, the concentration of the KCI solution is 85-99%.
Preferably, the heating temperature of the damp-heat test box is 70-90 ℃, and the heating time is 10-20 hours.
Optimally, the electrical property of the step 4 is compared with the contact resistivity and the EL image, the smaller the change of the contact resistivity is, the stronger the acid resistance property of the slurry is, and the more serious the shadow on the EL image after the experiment is, the poorer the acid resistance property of the slurry is.
The invention will be further understood by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.
As used herein, a feature that does not define a singular or plural form is also intended to include a plural form of the feature unless the context clearly indicates otherwise. It will be further understood that the term "prepared from …," as used herein, is synonymous with "comprising," including, "comprising," "having," "including," and/or "containing," when used in this specification means that the recited composition, step, method, article, or device is present, but does not preclude the presence or addition of one or more other compositions, steps, methods, articles, or devices. Furthermore, the use of "preferred," "preferably," "more preferred," etc., when describing embodiments of the present application, is meant to refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
Example 1
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) selecting four kinds of slurry, and respectively printing the four kinds of slurry on battery pieces, wherein each kind of slurry selects two battery pieces;
step 2) adding an acetic acid solution with the concentration of 0.2% and a KCI solution with the concentration of 85% into the acetic acid placing box 2, and clamping the battery piece by a battery piece fixing clamp 6 to enable the battery piece to be suspended in the center of the rack 3;
step 3) horizontally stacking 4 whole sealing boxes 1 in a damp-heat test box for heating at 70 ℃ for 20 hours, and turning on a fan to ensure that acetic acid steam in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, then carrying out electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry, wherein the electrical properties comprise contact resistivity and EL images.
Example 2
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) selecting four kinds of slurry, and respectively printing the four kinds of slurry on battery pieces, wherein each kind of slurry selects two battery pieces;
step 2) adding an acetic acid solution with the concentration of 0.4% and a KCI solution with the concentration of 90% into the acetic acid placing box 2, and clamping the battery piece through a battery piece fixing clamp 6;
step 3) horizontally stacking 4 whole sealing boxes 1 in a damp-heat test box for heating at 75 ℃ for 16 hours, and turning on a fan to ensure that acetic acid steam in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, then carrying out electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry, wherein the electrical properties comprise contact resistivity and EL images.
Example 3
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) selecting four kinds of slurry, and respectively printing the four kinds of slurry on battery pieces, wherein each kind of slurry selects two battery pieces;
step 2) adding an acetic acid solution with the concentration of 0.6% and a KCI solution with the concentration of 95% into the acetic acid placing box 2, and clamping the battery piece through a battery piece fixing clamp 6;
step 3) horizontally stacking 4 seal boxes 1 in a damp-heat test box for heating at 85 ℃ for 12 hours, and turning on a fan to ensure that acetic acid vapor in the seal boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, then carrying out an electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry, wherein the electrical properties comprise contact resistivity and an EL image.
Example 4
A detection method adopting a solar cell acid-resistant detection device comprises the following steps:
step 1) selecting four kinds of slurry, and respectively printing the four kinds of slurry on battery pieces, wherein each kind of slurry selects two battery pieces;
step 2) adding an acetic acid solution with the concentration of 0.8% and a KCI solution with the concentration of 99% into the acetic acid placing box 2, and clamping the battery piece through a battery piece fixing clamp 6;
step 3) horizontally stacking 4 whole sealing boxes 1 in a damp-heat test box for heating at 90 ℃ for 10 hours, and turning on a fan to ensure that acetic acid steam in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, then carrying out electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry, wherein the electrical properties comprise contact resistivity and EL images.
In the above four examples, each slurry in each example corresponds to two battery pieces, and the average value of the two battery pieces is taken, and it is understood from the experimental results that the slurry 2 in the four examples has the smallest change in contact resistance and contact resistivity before and after, and thus it is understood that the acid resistance of the slurry 2 is the strongest.
Unless otherwise specifically stated, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this invention belongs. The use of "including" or "comprising" and the like in this disclosure does not limit the presence or addition of any number, step, action, operation, component, element, and/or group thereof or does not preclude the presence or addition of one or more other different numbers, steps, actions, operations, components, elements, and/or groups thereof. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number and order of the indicated features.
It will be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (7)
1. A solar cell antacid detection device, characterized in that: including seal box (1), the both sides corner of seal box (1) is equipped with acetic acid and places box (2), be equipped with one side open-ended box (8) in seal box (1), be equipped with shelf (3) in box (8), the last lower surface of shelf (3) evenly is covered with air vent (4), shelf (3) up end is equipped with battery piece fixation clamp (6).
2. The solar cell acid-resistance detection device according to claim 1, wherein: fans (5) are arranged on the left side, the right side, the upper side and the lower side of the box (8).
3. A detection method using the solar cell acid-resistance detection device according to any one of claims 1 to 2, comprising the steps of:
step 1) testing the electrical property of the battery piece;
step 2) adding an acetic acid solution and a KCI solution into the acetic acid placing box (2), and clamping the battery piece through a battery piece fixing clamp (6);
step 3) horizontally stacking a plurality of whole sealing boxes (1) in a damp-heat test box for heating, and opening a fan to ensure that acetic acid steam in the sealing boxes is uniformly distributed;
and 4) taking out the battery piece, cooling, performing electrical property test, and comparing with the electrical property test data in the step 1 to obtain the acid resistance of the slurry.
4. The solar cell acid-fast detection method according to claim 3, characterized in that: the concentration of the acetic acid solution is 0.2-0.8%.
5. The solar cell acid-fast detection method according to claim 3, characterized in that: the concentration of the KCI solution is 85-99%.
6. The solar cell acid-fast detection method according to claim 3, characterized in that: the heating temperature of the damp-heat test box is 70-90 ℃, and the heating time is 10-20 hours.
7. The solar cell acid-fast detection method according to claim 3, characterized in that: the electrical properties of step 4 are compared to contact resistivity and EL image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469147.XA CN114813537A (en) | 2022-04-30 | 2022-04-30 | Solar cell acid-resistant detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469147.XA CN114813537A (en) | 2022-04-30 | 2022-04-30 | Solar cell acid-resistant detection device and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114813537A true CN114813537A (en) | 2022-07-29 |
Family
ID=82508981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210469147.XA Pending CN114813537A (en) | 2022-04-30 | 2022-04-30 | Solar cell acid-resistant detection device and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114813537A (en) |
-
2022
- 2022-04-30 CN CN202210469147.XA patent/CN114813537A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108680486B (en) | Long-term weather resistance testing method for photovoltaic module | |
| Peike et al. | Origin of damp-heat induced cell degradation | |
| Hacke et al. | Test-to-failure of crystalline silicon modules | |
| CN108362636B (en) | Method for testing corrosion resistance of bipolar plate for fuel cell | |
| CN113765480B (en) | Photovoltaic module hot spot testing method and photovoltaic module hot spot testing device | |
| CN111487181A (en) | Corrosion resistance test method and device for photovoltaic product | |
| CN109659473A (en) | A kind of method of radiation modification lithium ion battery separator | |
| CN114813537A (en) | Solar cell acid-resistant detection device and detection method thereof | |
| Kambe et al. | Chemically strengthened cover glass for preventing potential induced degradation of crystalline silicon solar cells | |
| Wohlgemuth et al. | The effect of cell thickness on module reliability | |
| CN107039668B (en) | Method for testing durability acceleration of gas diffusion layer of proton exchange membrane fuel cell | |
| Kouadri-Boudjelthia et al. | Bubbles formation on the photovoltaic cells fingers: Visual inspection of 30-year-old modules | |
| Rabelo et al. | Crystalline silicon photovoltaic module degradation: Galvanic corrosion and its solution | |
| CN110707370A (en) | Testing device and method for detecting lead paste formula performance of lead-acid storage battery plate | |
| CN113314716B (en) | Current collector and battery core | |
| CN115133873A (en) | Testing device and method for photovoltaic hot spot test | |
| CN109709196A (en) | A kind of pole piece electrochemical impedance test structure and its test method | |
| CN114976135A (en) | System and method for testing corrosion resistance of metal bipolar plate and plating layer of hydrogen fuel cell for automobile | |
| TWI689171B (en) | Solar cell testing system and testing method thereof | |
| CN113130932A (en) | Fuel cell flow state observation tool | |
| CN113418858A (en) | Corrosion resistance testing tool and method for photovoltaic cell | |
| CN109520917A (en) | The corrosion resistance test method of cell piece slurry | |
| CN117347253A (en) | Acetic acid testing device and method for solar cell | |
| CN112383279A (en) | Slurry acid resistance detection device and method | |
| CN215728674U (en) | Fuel cell stack test bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |