Battery News

According to the United States, “Technology Review” magazine reported that Chinese scientists Peng and colleagues through the transformation of dye components, developed a cheaper and highly efficient dye-sensitized solar cells (DSSC).

Dye-sensitized solar cells solar energy can be cheaper than the traditional battery of silicon solar cells cheaper and more easily printed on a soft surface, but there are also a problem, to create such a need for efficient battery precious metal electrolytes and volatile ruthenium dye made. Not long ago, the Chinese Academy of Sciences, Changchun Institute of Peng and colleagues have developed two other raw materials of a new class of dye-sensitized solar cell, the new battery is not only more efficient but also cheaper and more durable.

The key to progress is a new organic dye molecules, organic dyes more abundant than ruthenium compounds have been cheaper, thereby reducing the manufacturing cost of the battery. The researchers also used a different ionic liquid electrolyte that has been more powerful solar cells, the electrolyte contained in the current use of organic solvents, these organic solvents at high temperatures will be evaporated. Ionic liquids can also be used in conjunction with the plastic, it is possible to create a flexible solar cells. Wang Peng said: “We first proved that the composition of an all-organic dye can be used to create a stable solvent-free battery, and its performance compared with the ruthenium dye favorably.”

Researchers to include elements of the organic dye solar cells set a new record of energy efficiency, to solar cells with the traditional competition in the electricity into light, the dye-sensitized solar cell to achieve energy efficiency at least 10%, Wang and colleagues developed the performance of the battery for 9.8%. Dye-sensitized solar cells, the inventor, the Federal Institute of Technology Lausanne, Switzerland, Professor of Chemistry Michael said: “10 years ago, we believe that we will not be the result of more than 1%. Now it has been 9.8 percent of energy-efficient. “

There are two important messages to concern in May. First, we expect to launch  “planning the

revitalization of the new energy industry”,  to clear the first goal of solar power installed capacity

(2020 to 10 million kW), and carriy out the implementation of the Internet access pricing, such as

supporting the implementation of policies. National Development and Reform Commission of energy has a

clear direction for future energy development: the development of thermal power limit; hydropower

steady growth; accelerate the development of nuclear power; to encourage the development of wind

power, solar power and other renewable energy sources.

 

Second, third SNEC (2009) International Photovoltaic Solar Energy Conference May 6-8 will be held in

Shanghai, there will be more than 700 photovoltaic enterprises at home and abroad, to display the

contents of the exhibition include: photovoltaic production equipment, materials, photovoltaic cells,

photovoltaic products and components, as well as engineering and photovoltaic systems.

Due to the high cost of photovoltaic power generation, the industry is subsidized by the countries of

the world policy-driven. Governments support the introduction of photovoltaic power generation policy,

the world’s photovoltaic industry to overcome the international financial crisis, the beginning of

warming, coupled with declining investment costs, so that greatly increased the attractiveness of

investment in solar energy. Over the past 10 years regardless of the global PV industry is the

production capacity or are over 40% of the compound growth rate of growth in 2008 global production of

photovoltaic cells for 6.4GW, an increase of 60%, and continued high growth over the years situation.

China has become the world’s largest producer of photovoltaic cells, the production of photovoltaic

cells to occupy the global production of around 40%. One of the world in 2008 before the 25 PV

enterprises in China accounted for 8, the total output of 1821MW, China Taiwan accounted for three,

the total output for the 723.5MW.

 

From the point of view of the installed capacity in 2008, the world’s installed photovoltaic cells

5600MW, up 134 percent. China’s installed capacity in 2008 is only 40MW, only 0.7%, one can see, the

Chinese market for the installation of photovoltaic cells to be activated, the market has great

potential.

 

Chinese version of the solar roof plan, the domestic photovoltaic industry to help power the coming of

spring. Introduced by the end of March the Ministry of Finance “on accelerating the application of

solar PV to implement the views of the construction” and so on, in 2009 as a result of subsidies in

principle as standard 20 yuan / Wp, PV power generation means that electricity costs can be reduced to

0.58 yuan / kWh, demand for domestic photovoltaic started. We expect that the subsidy program is only

the beginning, is expected to launch in May, “the revitalization of New Energy and Industrial

Planning,” is expected to further support the introduction of relevant policies.

 

Thin-film crystalline silicon photovoltaic cells and photovoltaic cells will be growth, compared the

cost advantages of thin-film battery more. Crystalline silicon cells cost-per-watt limit for 1.27 U.S.

dollars, while the thin-film battery limits cost-per-watt in the following one U.S. dollars. We

measured the current installed capacity of silicon cells cost 19 yuan / wp about the cost of thin film

solar cells installed in the 12 yuan / wp around. Both are expected to grow, to increase the share of

thin-film batteries. The short term the demand for thin-film batteries to focus on areas with low land

cost BIPV, and still is the mainstream crystalline silicon, thin-film batteries will increase the

share, as the film base of a small battery, and low cost advantages, will usher in its rapid growth,

high growth in crystalline silicon cells.

 

Warmer in accordance with the demand for solar energy industry, all sectors benefit from the different

levels of priority, we recommend high-end thin-film battery manufacturers and component suppliers,

followed by crystalline silicon cells or the integration of downstream manufacturers, is once again

the upper reaches of polysilicon crystalline silicon cells.

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