• Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price System 1
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Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

Wholesale China Solar Cells Polycrystalline Solar Cells with Low Price

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5000 pc
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Polycrystalline Silicon Solar Cells:

Solar cells is made by solar wafer, it has three categories of solar cell right now, monocrystalline polycrystalline and thin film,These cells are entirely based around the concept of ap-n junction, which is the critical part of solar module, it is the part that can convert the light energy into electricity, the thickness is from 180um to 200um, with even busbars to conduct electricity, textured cell can decrease diffuse reflection; they are often electrically connected and encapsulated as a module. Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting  semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc. Solar cells are also usually connected in series in modules, creating an additive voltage. Connecting cells in parallel will yield a higher current;With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

Polycrystalline Silicon Solar Cells Advantage:

•  High efficiency and stable performance in photovoltaic conversion.
•  Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
•  Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and  attractive appearance.
•  High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
•  High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser cutting.
 

Specification:

Mechanical data and design

  Format          -       156 mm × 156 mm ± 0.5 mm  

Thickness-       -       200 μm ± 20 μm

Front (-)               1.4 mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)           -     2 mm wide soldering pads (silver) back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp .coef.%/K                 -0.364%/K   

Isc . Temp .coef.%/K                 +0.077%/K

Pm. Temp. coef.%/K                 -0.368%/K

 

Electrical Characteristic

Efficiency (%)           Pmpp (W)          Umpp (V)        Impp (A)           Voc (V)          Isc (A)      

  18.00%                    4.380                 0.538             8.141               0.634             8.740

  17.90%                    4.356                 0.538             8.097               0.634             8.725

   17.80%                    4.331                 0.537             8.065                0.633            8.710

   17.70%                    4.307                 0.536             8.035                0.632            8.695

   17.60%                    4.283                 0.535             8.006                0.631            8.680

   17.50%                    4.258                 0.534             7.974                0.630            8.665

  17.40%                    4.234                 0.533             7.944                0.629            8.650

  17.30%                    4.210                 0.532             7.914                0.628            8.635

   17.20%                    4.185                 0.531              7.88    --            0.627        -- 8.620

   17.10%                    4.161                 0.530              7.851                 0.626           8.605

   17.00%                    4.137                 0.529              7.820                0.625           8.590

 

Intensity Dependence

Intensity [W/m2]      Isc× [mA]          Voc× [mV]           Pmpp

1000                         1.00                    1.000                 1.00

900                           0.90                    1.000                 0.90

800                           0.80                    0.99                   0.80

500                           0.50                    0.96                   0.49

300                           0.30                    0.93                   0.29

200                           0.20                    0.92                   0.19

 

IV Curve

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

 

Solar Panel Images:

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

 

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

 

 

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price

Wholesale China Solar Cells Polycrystalline Solar Cells  with Low Price


 

 FAQ

We have organized several common questions for our clientsmay help you sincerely

What price for each watt?

It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.

How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

What is your warranty of solar cell?

 Our product can promise lower than 0.3% open box crack, we support claim after opening the box if it has crackm color difference or sth, the buyer should give pictures immediately, we can not accept the claim after the solar cell has assembled to solar panel.

• Timeliness of delivery

• How do you pack your products?

We have rich experience on how to pack the solar cell to make sure the safety on shipment, we could use wooden box or pallet as buyer's preference.

 Can you do OEM for us?

Yes, we can.

 

  

R & D of Solar Electric Cell Closes to the market

Currently, the whole solar electric cell industry face with overcapacity, and actively expand the consumer sector will undoubtedly become an important means to resolve its excess production capacity.

In many cells, photovoltaic power generation module neatly arranged on the carport, the roof, sunny days to convert solar energy into electricity, supplying carport or household use, excess electricity can also be sold to the national grid and increase revenue.

In rural areas, the solar cell application prospect is very broad. As technology advances and changes in consumption concept, the solar cell is constantly "downsizing" has become an important feature for portable products and selling points.

The most common solar electric cell is the portable mobile power. By convert light energy into electrical energy and stored in the built-in lithium battery, solar mobile power can give mobile phones, digital cameras, tablet PCs and other products charge, both energy-saving and environmentally friendly.

Today, more and more people use solar electric energy products. These are stylish low-carbon products, as well as fun. College students said. She took a creative foldable solar lighting, lighting the top of the solar panels to provide electricity for a rainy day, folded and portable features and provides the possibility for outdoor use.

The development of mobile solar energy is a major opportunity for the industry. Mobile Energy as mobile communications and mobile Internet +, like, will change the traditional energy production and consumption patterns, so that the traditional centralized power into each individual can generate electricity, energy will be everywhere.
There are characteristics of distributed generation PV products, especially flexible products, and intelligent terminal products should be combined. When the arrival of the era of mobile energy, we will each bag, tent, clothes, utilities and electronic products are distributed by a flexible technological transformation and innovation, moving only the energy market in 2020 can reach the level of 1 trillion dollars.

Q:How are solar cells affected by temperature?
Solar cells are negatively affected by high temperatures, as they can cause a decrease in efficiency and overall performance. The increase in temperature can lead to an increase in resistance, which reduces the flow of electric current within the cell. This decrease in current output results in a decrease in power generation. Additionally, high temperatures can accelerate the degradation of the materials used in solar cells, reducing their lifespan. However, low temperatures can have a positive effect on solar cell performance, as they can increase the efficiency and power output.
Q:Can solar cells be used for disaster relief efforts?
Yes, solar cells can be used for disaster relief efforts. They provide a reliable source of clean energy, which can be crucial in situations where traditional power sources are disrupted or unavailable. Solar cells can be used to power emergency communication systems, medical equipment, lighting, and water purification systems, among other essential needs in disaster-stricken areas. Additionally, portable solar panels can be easily deployed to remote locations, making them an ideal solution for providing immediate power during relief operations.
Q:Solar cell life for several years
Photoelectric effect of the work of thin film solar cells as the mainstream, and the implementation of photochemical effects of solar cells is still in the embryonic stage.
Q:Can solar cells be used to power emergency lighting systems?
Yes, solar cells can be used to power emergency lighting systems. Solar cells convert sunlight into electricity, which can be stored in batteries for later use. In the event of a power outage, these solar-powered batteries can provide a reliable source of energy to power emergency lighting systems, ensuring safety and visibility during emergencies.
Q:What is the role of batteries in solar cell systems?
The role of batteries in solar cell systems is to store excess energy produced by the solar panels during the day for use during periods of low sunlight or at night. Batteries act as a backup power source, allowing for a continuous supply of electricity even when the sun is not shining.
Q:What are the maintenance requirements for solar cells?
The maintenance requirements for solar cells typically include regular cleaning to remove dust and dirt that can reduce their efficiency, as well as occasional inspections to check for any damage or malfunctioning components. Additionally, it is important to ensure that the surrounding vegetation or structures do not shade the solar panels, as this can also affect their performance. Overall, solar cells have minimal maintenance requirements compared to other forms of energy generation.
Q:What is the impact of fire hazards on solar cells?
The impact of fire hazards on solar cells can be significant and detrimental. Fires can cause direct damage to the cells, resulting in their complete destruction or impaired performance. The high temperatures and flames associated with fires can melt or warp the delicate components of solar cells, rendering them useless. Additionally, the smoke and ash produced by fires can settle on the surface of the solar panels, reducing their efficiency by blocking sunlight. Therefore, fire hazards pose a significant risk to the functionality and longevity of solar cells.
Q:What is the impact of tree shading on solar cell performance?
Tree shading has a significant negative impact on solar cell performance as it reduces the amount of sunlight reaching the cells, thereby reducing the overall energy output. Shading blocks direct sunlight and creates uneven distribution of light, resulting in decreased efficiency and potentially even causing parts of the cells to operate in reverse, leading to further energy loss. It is crucial to plan solar installations carefully, considering tree growth and shading patterns, to maximize solar cell performance.
Q:Can solar cells be used for powering traffic lights?
Yes, solar cells can be used for powering traffic lights. Solar panels can harness sunlight and convert it into electricity, providing a sustainable and renewable source of power for traffic lights. This eliminates the need for traditional electrical grid connections and reduces carbon emissions. Solar-powered traffic lights are increasingly being adopted as an eco-friendly and cost-effective solution in many locations around the world.
Q:Can solar cells be used in railway applications?
Yes, solar cells can be used in railway applications. They can be installed on railway tracks, train roofs, or station roofs to generate electricity and power various railway systems, such as signaling, lighting, and communication systems. Additionally, solar cells can also be used to charge batteries in trains or provide power for onboard equipment, reducing reliance on traditional sources of energy and promoting sustainability in the railway industry.

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