Talk about photovoltaic battery
Photovoltaic battery works:
Solar batteries through the photoelectric effect or photochemical effects of light energy into electrical energy directly to the camera. The photoelectric effect to work in thin film solar batteries solar for the general public, the working principle of photochemical effects of solar VGP-BPS9 batteries is still embryonic. Solar radiation in the pn junction semiconductors, the formation of new hole - electron pairs. The electric field in pn junction under the influence of flow hole area n area P, the flow of N e of the p-area, connected to the circuit after the training course.
Photovoltaic batteries Introduction:
The solar photovoltaic batteries (PV batteries for short) are used for the sun’s light energy directly into electrical energy. Currently a large number of terrestrial PV systems based on silicon substrate using silicon solar batteries can be divided into monocrystalline silicon, polycrystalline silicon solar batteries in amorphous silicon. In the performance of energy conversion and the lifetime of an overall performance, monocrystalline silicon and polycrystalline silicon batteries are better than amorphous silicon batteries. Below conversion efficiency of polycrystalline silicon, but the price cheaper.
As required by the application after a certain combination of solar batteries to achieve a certain level of output and nominal output voltage of a group of photovoltaic VGP-BPS10 batteries, called PV modules. Depending on the size and scale photovoltaic power plants, a variety of PV modules can be composed of a variety of sizes.
PV modules using monocrystalline high-performance photovoltaic batteries or polycrystalline silicon, high transmission tempered glass, Tedlar, more corrosion resistant alloy chassis and other aluminum materials, the use of processes leading to vacuum lamination process and welding pulse. Even in the harshest environments can ensure a long life.
The installation of set up is very convenient. Components installed in the north watertight junction box, through which it can be easily connected with the external circuit. For each piece of solar Laptop battery components, are guaranteed over 20 years of life.
Research on solar batteries in China
China started research on solar batteries in 1958, the 20th century, the late ’80s, the interior has introduced a number of production lines for solar batteries, the Chinese have the production capacity of solar batteries from the three originals of hundreds of small factories kW blow to 4 4.5Mw factory, this function until 2002, production was only about 2 MW. In 2002, the European market, especially the German market, the rapid amplification and Wuxi Suntech Power Co., Ltd., have expelled and ultra-conventional development of photovoltaic industry in China has brought unprecedented opportunities for development and demonstration effect.
At present, China has become the world’s leading producer of solar batteries. 2006 national production of solar batteries 438MW, 2007 National Solar battery production of 1188MW. China is now outside Europe, Japan, the world’s solar battery manufacturing superpower. Production continued to increase in 2008, reached 200 million kilowatts.
The past five years, the annual growth rate of China for the production of photovoltaic batteries for 1-3 times the production of photovoltaic batteries, the proportion of total world production in 2002 increased by 1.07 per cent for 2008, nearly 15%. Trade efficiency solar battery silicon crystal three years ago, 13% -14% to 16% -17%. Overall, the solar battery technology to China in international market share and competitiveness in a substantial increase. In industrial configuration, the Chinese industry of solar battery has formed a number of cluster tendency. In the Yangtze River Delta, Bohai Bay, Pearl River Delta, central and western regions, have formed their own characteristics of cluster industries of solar energy.
