How to make solar panels from disks

Introduction How to make solar panels from disks The method of manufacturing solar panels from disks is: refining silicon rods into monocrystalline silicon or polycrystalline silicon; slicing and cleaning silicon rods i.e. polishing, fluffing, etc.

How to make solar panels from disks

The method of manufacturing solar panels from disks is as follows:

Refining silicon rods into monocrystalline silicon or polycrystalline silicon; silicon rod slicing and cleaning, i.e. professional processing; like polishing and fluffing, become a solar cell packaged in a solar panel.

Monocrystalline silicon solar cells: The current photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, with the highest reaching 24%. This is currently the highest photoelectric conversion efficiency among all types of solar cells. but the production cost is so high that it cannot yet be used widely and generally in large quantities. Since monocrystalline silicon is usually encapsulated in tempered glass and waterproof resin, it is strong and durable, with a long service lifegenerally going up to 15 years and up to 25 years.

Polycrystalline silicon solar cells: The manufacturing process of polycrystalline silicon solar cells is similar to that of monocrystalline silicon solar cells, but the photoelectric conversion efficiency of polycrystalline silicon solar cells is much higher weak. 12% of production In terms of cost, it is cheaper than monocrystalline silicon solar cells, the materials are easy to manufacture, save energy, and the overall production cost is low, so it has been widely developed.

In addition, the lifespan of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells. In terms of performance-price ratio, monocrystalline silicon solar cells are slightly better. A solar panel is an electricity generation material that uses energysolar energy to convert electrical energy.

How to make solar charging panels for primary school students

First, design the cell size according to the size of the glass in general. , the distance between each side of the cell is 5 mm from the edge of the glass. With the main grid line of the battery as the center, use a cutting machine to cut the solar cells into several pieces. number of glasses. Wear PVB gloves during operation and wait for use after cutting.

Next, use a ruler and wallpaper knife to cut the EVA and backboard into several small pieces slightly larger than the glass. The amount of EVA should be twice that of glass. After cutting the support. by. Next, use scissors to cut the welding tape into several small sections slightly longer than the length of the glasse. Wear PVB gloves when using and set them aside after cutting. After completing the above material preparation work, start using a soldering iron to solder ribbons on the grid main lines on both sides of the battery part. Do not use too much force to avoid crushing the battery part. Place the materials from bottom to top in order glass-EVA-battery sheet-EVA-backplane Once all are laid down, place them in the laminator to avoid misalignment, tape can be used to to stare. Remove the laminated small solar panels, wait for the temperature to drop to room temperature, use a wallpaper knife to remove excess material around the glass, and finally use a soldering iron to connect the independent small solar panels in series, and you can use them. .

What is the production process of solar panels ?

Artisanal production of dye-sensitized TiO2 solar cells

1. Making titanium dioxide film

(1) First put titanium dioxide powder into mortar and glue. it Grinding agent

(2) Then use a glass rod to slowly apply a film to the conductive glass

(3) Place the titanium dioxide film under a lamp alcohol to sinter for 10-15 minutes, then let it cool

2.Use natural dyes to color the titanium dioxide

As shown in the picture, add plums fresh or frozen black plums, mountain plums, pomegranate seeds or black tea, add a tablespoon of water and squeeze, then put the titanium dioxide film on it for coloring, it will take about 5 minutes until until the film layer turns dark purple. If the coloring on both sides of the film layer is uneven, you can put it on and tsoak for. another 5 minutes, then rinse it with ethanol and dry it gently with soft paper.

3. Make the electrode positive

The TiO2 colored by a dye is the electrode from which the electrons come out (the negative electrode). The positive electrode may be composed of a conductive surface of conductive glass (covered with a conductive film of SnO2). You can use a simple multimeter to determine which side of the glass is conductive. You can also use your fingers to make a judgment. the conductive surface is rough. As shown in the picture, mark the non-conductive surface with "+", then use a pencil to evenly apply a layer of graphite to the conductive surface.

4. Add electrolyte

Use a solution containing iodide ions as the solar cell electrolyte. It is mainly used to reduce and regenerate dyes. As the picture shows, add simplement one to two drops of electrolyte on the surface of the titanium dioxide film.

5. Assemble the battery

Place the colored titanium dioxide membrane face up on the table, drop one or two drops of electrolyte containing iodine and iodine ions on the membrane, then place it conductive side of the positive electrode presses on the titanium dioxide membrane. Offset the two pieces of glass slightly and use two pliers to clamp the battery. The exposed parts of the two pieces of glass are used to connect the wires. This way your solar cell is ready.

6. Battery Test

Under outdoor sunlight, check if your solar cell can produce current.

Solar panel production process editing: slicing, cleaning, texture preparation, peripheral engraving, PN+ junction removal, upper and lower electrode manufacturing, fabricationof anti-reflective films, sintering and binning tests Wait 10 steps.

The glass is previously coated with a layer of primer to increase the bonding strength between the glass and the EVA. When laying, ensure the relative position of the battery string, glass and other materials, and adjust the distance between batteries to establish a solid foundation for lamination. (Installation level: from bottom to top: tempered glass, EVA, battery cells, EVA, fiberglass, backplane).

User solar power supply:

(1) Small power supply ranging from 10 to 100W, Used for military and civilian life in remote areas without electricity, such as plateaus, islands, pastoral areas, border posts, etc., such as lighting, televisions, radio cassette players, etc. ;

( 2) 3-5 kW domestic rooftop grid-connected power generation system;< /p>

(3) Photovoltaic Water Pump: Solves the problem of drinking water and irrigation from deep wells in areas without electricity.

Transportation field: such as navigation beacon lights, road/railroad signal lights, warning/signal lights, Yuxiang street lights, high altitude obstacle lights, highway/railway wireless telephone booths, unattended route changing power supply, etc.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01