Silicon Materials and Thin film batteries
Silicon thin-film battery supply crisis led to investment boom
Since the amorphous silicon thin film to be developed, the conversion efficiency of only half of the polysilicon has not been universal. In recent years favored the growing photovoltaic industry, triggered a crisis in the supply of silicon materials. Silicon raw material prices skyrocketing, making thin-film batteries once again surfaced. In 2007, the global thin film solar cell production reached 400MW, 181MW in 2006, compared with a substantial increase of 120% market share of 8.2% from 2006 to 12%.
Corresponding to this, following the thermal solar modules, polycrystalline silicon hot, the thin film photovoltaic cells has become the new investment hot spot areas. In June 2008 the German Photovoltaic Exhibition 2008, Taiwan's annual production capacity of only 30MW of green energy, to be signed orders amounted to 200MW, annual production capacity of six times in 2008; Yutong energy production yet, also made orders for 60MW. Tianwei change plans to invest 3.2 billion yuan for the amorphous silicon thin film solar cell projects; LDK announced in Nanchang building the most technologically advanced and largest thin film solar cell projects; July 2008, Johnson & Johnson 25MW of amorphous silicon photovoltaic film solar cell production line officially put into operation; Gan announced the formation of a joint venture to share and build an annual capacity of 50MW target film amorphous silicon photovoltaic cell production line. Suntech added, Vosges stake in Rio Nisshin energy, variety of shares and other companies have also announced its entry into the field of thin film batteries, thin film batteries attract domestic investment.
South developed enough to each one square meter solar electricity a day
Learned from the Nankai University, Nankai University in the solar energy into electricity has made significant progress, and built the country's largest amorphous silicon thin film solar cell production line, and have the ability to mass production. According to reports, the use of the battery power per hour per square meter, 55 watts, can meet the electricity needs of a family one day.
Also known as photovoltaic solar cells, layman's terms, that is, absorb solar energy, to transform them into electrical devices. It looks like a thin card or glass, the thickness of only 6 mm. Because solar safe, reliable, non-polluting, energy widely available, etc., can be widely used in industry, agriculture, military, civil and other fields, large satellites in the universe, small family radio, charger, solar batteries are ready for takeoff.
Line Chief Engineer, Institute of Optoelectronic Information Technical Science, Nankai University, Thin Film Devices and Technology Institute, said researchers Professor Wang Zongpan, home of the battery, install 1 square meter of a home enough power to use amorphous silicon solar cells per square meter per hour power 55 watts, can basically meet the demand of a family day. Moreover, the amorphous silicon solar cells can generate electricity grid, which will be solar in sunny issued to the excess power transmission grid, to the rainy day or night, the electricity grid will Zaishu previously stored to the user, is fully capable of to ensure continuous use year round.
According to reports, Nankai University, amorphous silicon thin film solar cell production line is expected to double production this year is expected to expand production to 100 megawatts next year scale, equivalent to a medium-sized power plant generating capacity.
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