Chengdu makes power generation glass to turn build

2022-06-23
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The "power generation glass" made in Chengdu can transform buildings into power stations. How does the "power generation glass" generate electricity

thin film low light power generation glass is coated with cadmium telluride optoelectronic material on the ordinary glass, so that the ordinary glass can change from an insulator to a conductive conductor, and then into a building material that can generate electricity. The power generation layer of each power generation glass is etched by laser to form 214 small batteries in series, that is, white lines visible to the naked eye on the black glass. The two pieces of glass are integrated into one, and the electricity is collected through the junction box on the back, which can generate electricity. After being led into the inverter, it can be directly used

the conveyor belt runs at a constant speed, and the "robot" operates automatically. In 55 seconds, a 1.6m long and 1.2m wide cadmium telluride power generation glass can be offline

this is the production line site of Chengdu zhongjiancai Optoelectronic Materials Co., Ltd. and also the first 100MW cadmium telluride power generation glass production line in China. It is built in accordance with German industrial standard 4.0. More than 90% of the equipment is purchased from Germany and other European and American countries, achieving a laboratory conversion efficiency of 17.8% and a small component conversion efficiency of 14.5%, reaching the domestic leading level

the breakthrough of this technology marks that China building materials has mastered the world's leading independent core technology of large-area cadmium telluride power generation glass, and has also broken the monopoly of foreign giants. Soon, Chengdu CNBM will follow the "China High Speed Rail" model, introduce, digest, transform, improve (localization), and go abroad

power can be generated when there is light, and the weak light performance is good, which is suitable for Sichuan region.

in the exhibition hall of Chengdu zhongjiancai Optoelectronic Materials Co., Ltd., a black glass with the size of a TV screen is covered with a curtain. As the curtain is slowly opened, the bulbs on the glass light up one by one. This is the cadmium telluride power generation glass with the largest monomer area in the world. Compared with the small power generation glass in foreign countries, "made in Chengdu" has greatly reduced the production cost and installation cost

how is power generation glass made? Why was it born in Sichuan? In front of a row of "discolored" glasses, according to the blueprint for automotive plastics plan newly released by the plastics branch of Chengdu China building materials optoelectronic American Chemical Council (ACC), Yin Xinjian, Secretary of the Party committee of Materials Co., Ltd., told that the process of glass changing from colorless to yellow and then to black was the process of installing batteries for power generation due to different materials, different properties, different shapes of materials and different experimental forces, It is because of the power generation layer. "Thin film low light power generation glass products are coated with cadmium telluride optoelectronic materials on ordinary glass, making ordinary glass from insulator to conductive conductor, and then into building materials that can generate electricity, realizing the organic combination of glass and materials." Yinxinjian explained that the power generation layer of each power generation glass is etched by laser to form 214 small batteries in series, that is, white lines visible to the naked eye on the black glass. The two pieces of glass are integrated into one, and the electricity is collected through the junction box on the back, which can generate electricity. After being led into the inverter, it can be directly used

"the source of power generation materials is Bismuth Tellurite. Sichuan has the only independently mineralized Bismuth Tellurite in the world." Yinxinjian said that under the same illumination, the light absorption of power generation glass is about 10% higher than that of ordinary power generation materials. Even under weak light conditions, it can generate electricity through photoelectric conversion, especially suitable for the illumination conditions in Sichuan. "The rich mineral resources and the weak light resources are the two major factors for us to seek breakthroughs under adversity."

cadmium telluride crystals with a thickness of 1% hair wire can be continuously "grown" on the glass.

according to the relevant person in charge of Chengdu zhongjiancai Optoelectronic Materials Co., Ltd., "made in Chengdu" power generation glass has taken the lead in the world. A single piece of power generation glass with a length of 1.6 meters and a width of 1.2 meters has a photoelectric conversion efficiency of 17.8% and can generate 260 ~ 270 degrees of power every year. Even when the light is very weak, it can generate electric energy through photoelectric conversion. A piece of glass with an area of 1.92 square meters can generate 260 ~ 270 degrees of electricity a year. According to theoretical calculation, the electricity generated by threeorfour thousand pieces of glass is equivalent to the electricity generated by changing the output by moving the common conditioning beam, which can be converted into the annual oil production of a well in Tongjiang oilfield

it is reported that previously, the largest single-chip cadmium telluride thin film power generation glass in the world was 0.72 square meters, and no breakthrough has been made. It is very difficult to uniformly and continuously deposit a 4 micron thick cadmium telluride film, which is equivalent to 1% of the hair thickness, on the glass

the new plant area of Chengdu zhongjiancai Optoelectronic Materials Co., Ltd. is 30000 square meters, the total length of the production line is 560 meters, and only more than 50 workers are required for daily production. The automation rate is very high. "The operating system is bilingual in Chinese and English, and we can export equipment in the future." The core process used in the production line of the factory is gasification coating: after the glass enters the vacuum chamber, it is in a high-speed motion state in a high-temperature environment, allowing the 4-micron-thick cadmium telluride crystal to "grow" continuously on the glass. It is also a green, recyclable and power generation multi-functional building material, which can replace bricks, curtain walls and other building materials, and has laid a solid foundation for the implementation of large-scale photovoltaic building integration

it is estimated that power generation glass is installed on three sides of the plant

it can generate more than 2 million kilowatt hours of power a year

with the continuous production of products, the company is "arming" the plant with power generation glass. At the scene, many of the company's plants have been installed with black glass. From the outside, it is only different from the ordinary glass curtain wall in color, but the box pulled out by the wires behind can supply power to the plants. It is estimated that once the power generation glass is installed on the three sides of the plant, it can generate more than 2 million kilowatt hours a year, which means that half of the power consumption of the day shift of the production line can be self-sufficient. Even the power supply of battery cars and electric vehicle charging piles can come from "power generation glass", and new energy vehicle charging piles using "power generation glass" can be seen everywhere in the plant

compared with ordinary power generation materials, "power generation glass" is more durable, with a design life of 30 years. Through power generation, the cost can be recovered in the first 6 years, which opens up imagination space for the promotion of photovoltaic power generation and even targeted poverty alleviation

"there are 40billion square meters of existing buildings in China. If 10% of them are transformed with 'power generation glass', it is equivalent to Building Three Gorges power stations, and solving the problem of light pollution of traditional glass curtain walls." The person in charge believes that with the "blowout" of orders, they are infinitely close to their dreams

with the dream of building China's "first solar energy", the "CdTe thin film solar cell team of CNBM" is committed to the R & D and industrialization of CdTe thin film solar power generation glass. The team adheres to the integration and innovation of industry university research, and is the only Chinese enterprise in the industry that integrates the whole industry chain of glass, cadmium telluride materials, coating process and equipment

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