Tuesday, July 7, 2009

U.S. researchers developed a highly efficient fuel cell

U.S. researchers developed a highly efficient fuel cell

U.S. researchers in the new version of a network of "Science" magazine published a paper that laptop battery they developed a new solid oxide fuel cell, the use of hydrocarbons - iso-octane fuel for energy conversion efficiency is expected to reach 50%.

Usually energy ibm batteries conversion efficiency of internal combustion engines does not exceed 15%, the existing hydrogen fuel cell efficiency is 29%, the latest hybrid vehicles efficiency of 32 percent, however, so in the energy supply, oil prices today, this progress is concern. Chaired the study, Northwestern University Professor Barnett optimistically predicted that this new type of fuel cell, after more testing, can be widely used in automobiles, aircraft, and even many families.

Primarily through the fuel cell so that oxygen ions in the electrolyte will be currents hydroxide, while the water produced as a by-product. The past the general selection of fuel cell pure hydrogen and very little direct use of hydrocarbons (hydrocarbons). This is because the environment in the fuel cell reaction in the 600-800 degrees Celsius heat, can break down hydrocarbons in the carbon out of the coverage in the anode electrode, causing the electrolyte can not reach the anode, the reaction difficult.

Barnett and other researchers found that in order to use a layer of zirconia-based, containing a small amount of ruthenium and cerium catalytic reforming of the porous film, in response to fuel increased slightly when the amount of oxygen can effectively remove carbon precipitation to avoid anode by carbon coverage. In addition they also found that with nickel anode for fuel cells, than with the traditional copper anode for fuel cell power density was higher. Researchers developed a model of small-scale fuel cells, the response generated by the fuel energy density reached 0.6 watts per square centimeter.

Barnett believes that the existing disadvantages of hydrogen fuel cells is that the need for a large number of new hydrogen purification plant will extract hydrocarbons from the hydrogen, if hydrogen fuel cell car must also be applied to many new "hydrogen refueling station" . Hydrogen purification, transport and storage are in need of special technology, the application has greatly increased the cost.

In contrast, the use of iso-octane new solid oxide fuel cell, which is equivalent to the hydrogen purification plants, "compressed" in a small device, and iso-octane are straight-chain hydrocarbons, and gasoline is very similar to, does not require new infrastructure , this promising fuel cells.

National hydrogen fuel cell industry base "set up" Yixing

A lead and promote the fuel cell industry chain of China's overall development, planning a total investment of 20 million, three-building industrial base hydrogen fuel cell "set up" Yixing. March 31, Yixing City People's Government, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian Corp. new source for the "joint construction of the national hydrogen fuel cell industry base signing ceremony."

It is understood that the national hydrogen fuel cell industry is the base of Dalian Institute of Chemical Physics, Chinese Academy of Sciences for technical support. The Institute is one of the earliest fuel cell technology to carry out scientific research institutions, engaged in fuel cell research and development of more than 40 years fru08k8193 battery, ibm thinkpad r50 battery. 70 in the last century's space with the successful development of two models based on alkaline fuel cells, they have launched a molten carbonate fuel cell, proton exchange membrane fuel cell, solid oxide fuel cells, direct alcohol fuel cells and micro - fuel cell research and development, China has developed the first kW-class molten carbonate fuel cell, the first-class kilowatt proton exchange membrane fuel cell, the first fuel cell driven car CMB, the first city bus with fuel cell engine. In the field of fuel cells has accumulated rich with knowledge of the core technology of self-sovereignty. Dalian Co., Ltd. is the new source for a fuel cell industry is committed to the joint-stock enterprises, and its technology, human resources, capital, markets comprehensive strength ranks the industry leader.

National hydrogen fuel cell industry base will be in the long-term planning, step-by-step implementation of the principles of economic efficiency and operation of the building. Among them, the first for the market development stage, with a focus on industrial development planning and the industrial chain of distribution, 200 acres of land for construction projects, a total investment of approximately 2.2 billion this year to start, and strive through 3 years of hard work, the base fuel cell industry in China demonstration base and fuel cells "863," the results of projects into the base industry. In addition, the building of an appropriate scale of production the market prospects of fuel cell products in volume production base, the building materials industry, fuel cell of the key production base, as well as ancillary parts and components and related products, such as small-scale hydrogen production, hydrogen storage and other products of the production base .

The nation's largest solar cell manufacturer located in Nanjing

At present, the largest and most technologically advanced solar cell production base in Nanjing Jiangning Development Zone. Nanjing, China Light and Power Photovoltaic Technology Co., Ltd. The total investment in a 30 million U.S. dollars, the first production line put into operation in June, pay close attention to to build production lines to the end of three production lines in operation, form a 100 MW solar cell production scale, than the current National The combined production capacity doubled.

To the end of 2005, the company will achieve production capacity of 100 megawatts, the output of 2.5 billion. According to the company long-term development plan in 2008 is expected to design production capacity of 600 MW, 15 billion of output. National Development and Reform Commission is implementing the "bright work" for 10 billion yuan fund-raising to promote solar power generation technology. China Light and Power Electric Group introduced the Australian team of scientists, Dr. as well as the international most advanced solar energy technology, at the same time, "Renewable Energy Law" after the enactment, in the provincial and municipal governments attach great importance to the CLP Group and re-deploy to speed up the implementation, it is bound to build China's largest solar energy battery production base.

Solar energy - in this century, one of mankind's primary energy by 2030 ibm thinkpad r51 battery, ibm thinkpad r52 battery, photovoltaic power generation will become the new energy account for a significant share of the components of the batteries.