Thin film cells are full of vitality against the b

Under the gloomy background of China's photovoltaic industry, thin-film solar cells are full of vitality

when all sectors of society lament that China's photovoltaic industry is full of sorrow, thin-film solar cells are creating vitality

influenced by the anti-dumping investigations of the United States and Europe, China's photovoltaic industry is struggling to survive. According to the latest statistics of Maxim group, an American investment institution, the accumulated debt of China's top 10 photovoltaic enterprises has reached US $17.5 billion, about 111billion yuan, especially the pressure from Jiangxi Saiwei and Suntech Power, a steady and long-term development strategy

"all the negative news of China's photovoltaic industry is about crystalline silicon, not thin film. Thin film batteries are growing rapidly with an annual market share of% and are completely a blue ocean." Li Hejun, President of the new energy chamber of Commerce of the all China Federation of industry and Commerce and chairman of the board of directors of hanergy Holdings Group, said in an exclusive interview with Hexun on August 8

in the photovoltaic industry pattern, crystalline silicon and thin film have their own characteristics, but crystalline silicon battery technology is relatively mature and stable, with high conversion efficiency, which accounts for more than 85% of the market. "It is precisely because of the mature technology that shoe factories have turned to make crystalline silicon batteries in the past two years. The current dilemma is the inevitable result of this herd. Consult the sales staff of Jinan Shijin." Li Hejun said

at present, thin film battery technology is mainly divided into three schools: silicon-based thin film, CIGS (copper indium gallium selenium film) and cadmium telluride. Manufacturing crystalline silicon batteries requires silicon wafer thickness of 200 microns, while manufacturing thin-film batteries is to deposit elements with photoelectric characteristics such as silicon on materials such as glass and plastic, whose thickness is often only a few microns, so raw materials are very saved

in terms of conversion rate, the conversion efficiency of crystalline silicon battery modules is currently maintained at 16%, and may reach about 18% in the future; The tortuous experiment of large-scale production by leading solar energy companies in the United States should be judged according to the provisions of relevant product standards. The conversion efficiency of cadmium telluride thin-film batteries has reached 12%, and the conversion efficiency of CIGS has climbed to 14% from 11% last year. It is expected to reach 15% or even 17% in 2014

"however, the national competent authorities, especially the financial sector, do not understand such a professional problem. It is funny to classify the photovoltaic industry as an industry with overcapacity in general, and treat it as the same as the cement industry, strictly restricting loans." Li Hejun told Hexun

in fact, the conversion efficiency of silicon-based thin-film cells is less affected by temperature and illumination, and can be widely used in the construction of large desert solar power stations with large temperature differences between day and night and low land costs; Moreover, in the future, thin-film batteries can be deposited on flexible materials, which can be bent or even folded, and their film thickness can be further reduced. They can be applied to military UAVs, automobiles, agricultural greenhouses, backpacks, tents and other daily life

"if the crystalline silicon batteries in recent years are black-and-white TVs, thin-film batteries are color TVs and LCD TVs, which represent the direction of future industrial development. The financial sector should treat such industries differently." Li Hejun said

at present, hanergy Holdings Group has completed the planning of thin-film battery production bases in Sichuan, Zhejiang, Guangdong, Hainan and other places. It is expected that the production capacity will reach 3 gigawatts by the end of this year, surpassing the leading solar energy companies in the United States and becoming the world leader. Zhonghua glass () Department