Polysilicon crystalline silicon battery to regain hope – 1
In 2008, a global financial crisis made it as a solar PV industry, polysilicon-based raw material prices fall from the financial crisis before the close to 500 U.S. dollars / kg rapidly dropped to 60 U.S. dollars / kg, which rely on crystalline silicon to crystalline silicon raw materials battery industry has brought good, greatly enhancing its expanding market share advantage.
In the past few years, due to polysilicon prices soared, making the total cost of crystalline silicon Lenovo 3000 G530 battery cells in the crystalline silicon material costs accounting for as high as 56.2%, becoming too heavy a burden manufacturers, China’s corporate profits have taken a hit. In this case, a number of manufacturers in order to get rid of the crystal on silicon raw materials began to have entered the field of thin-film batteries. However, in polysilicon prices fell sharply after the thin-film battery manufacturers are the days became dark, we understand that some companies are building thin-film battery project progress has slowed, a number of planned projects have been canceled. In this regard, concerned that the market pick up in the new round, the crystalline silicon cells manufacturers, may be given more opportunities, thin-film batteries will be at a disadvantage in the competition, this is because the increasing prices of raw materials close to the case, crystalline silicon cells than thin-film batteries in many respects an advantage.
Photoelectric conversion efficiency
At present, the world’s most advanced crystalline silicon cells for solar Lenovo Ideapad Y430 battery conversion rate of 22%, domestic crystalline silicon cells have reached conversion rate of 17% to 19%, while international industrial production on the three kinds of thin-film batteries (silicon thin-film solar cells, copper indium gallium selenide thin-film solar cells, cadmium telluride thin-film solar cells), the even higher conversion rate of cadmium telluride thin-film solar cells and copper indium selenide thin-film battery, conversion rate is only 11% and 12% , the domestic is only about 6%. In contrast, crystalline silicon cells superiority is obvious. Domestic industry leader Shi Zhengrong at the Third International Conference on Photovoltaic Solar Energy said that in the current domestic thin-film solar cell conversion rate is only around 6% of the cases, it is difficult to compete, and crystalline silicon cells. The long run, the conversion efficiency of thin-film solar cells must reach 10% to remain competitive.
