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Manfred-von-Ardenne-Allee 33
71522 Backnang , Germany

Fully printed perovskite solar cells

 
 
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Solar cells for fashion 

Model 1, - solar cell is sewn into the top surface of the hat, the power output is about 8 W, which is enough to power the iPhone. Wires and perform the function of the holder, with an output USB connector, from which gadgets are powered. The area of ​​solar cells in the fields of the hat is about 500 square centimeters.

For a normal charging speed, an average smartphone needs 4 watts, for fast charging the iPhone X in 30 minutes to 50% you need about 18 watts.

The used perovskite solar cells are the lightest and most energy efficient on the market, about 4 grams per watt, and the closest competitor is about 30 grams per watt. And the power output is now 1.5-2.3 W per 100 square centimeters, 10x10 centimeters ( power efficiency 15-23%), with prospects for the increase, since the perovskites are known only for about 4 years, and in further researches, the theoretical estimates give efficiency of more than 3 W per 100 square centimeters. And there are no flexible batteries in the market with an efficiency of more than 1.4 W per 100 square centimeters
 

 

 

 
 
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The composite of carbon fiber and fiberglass with flexible transparent polyurethane make such a battery shock-resistant. Manufacturing technology allows you to make them of different shapes and colors, which means that you can make a solar cell with a pattern.

The estimated manufacturing  cost of 30-50 euros, the sale value of 150 euros

Advantages

 Highest power-to-weight ratio

Perovskite solar cells can achieve unmatched power-to-weight ratios due to their strong light absorption and high efficiency

 Lightweight and flexible

New form factors for lightweight solar modules are enabled by ultra-thin perovskite films

Abundant and cheap materials

Raw materials used in perovskite solar cells are produced in high volume at extremely low cost

High efficiency potential

Perovskites can be engineered to absorb different parts of the solar spectrum, enabling high-efficiency tandem solar cells

We are  focused on printing equipment for  perovskite-based solar solar cells.
Now the efficiency is about 17%, and the minimum thickness is 10 microns.

We can automate the process of producing a solar cell using the semblance of printing elements. Reagents and substrates are loaded onto which layers of solar cells are applied. We create a laboratory model, which at the very beginning of development gives the final product. In this case, the need for staff can be minimized. All this significantly reduces costs, which can bring the cost price to $ 0.3 per watt.
An efficiency of about 17% has been achieved, calculations show that it is possible to exceed 30% in the future.

Solar panels can be printed on a variety of substrates, including on a curved surface. On flexible substrates it can be a hat or a backpack with built-in solar cells. Perovskite material with an efficiency of 20% and a lifetime of about 4 years. In the future, we plan to obtain an efficiency of 25% of perovskite batteries. Now on the market are backpacks with battery efficiency of about 10%
The cost price of 400 dollars is already sunny clothes like jackets, vests.
For the manufacture of 1 square meter you need from 10 to 20 USD. It takes about a year and a half and about 600-900 thousand USD to go into industrial production. We need to increase the guaranteed period of work to 8-9 years and repeatable efficiency from 14 to 18% over a large area and prevent production defects. In some experiments, my efficiency was up to 21%.

It seems to me that for the very beginning of entering the market, it is worth making printed on clothes, backpacks, awnings solar batteries for recharging mobile devices, since flexible batteries with efficiency of more than 10% (Fujifilm (JP), Unisolar (US). Miasole (US), Flisom (CH), MidSummer (SE) have not yet entered the market and have not yet responded to my price requests.

 
 
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