Stanford University research team has developed the latest achievements of transparent battery, its biggest advantage is low cost and small size. Although the current storage capacity of this battery of up to half the normal lithium-ion battery, it is believed that improved general will meet the power demand of electronic products. Because it exceeded the limit of naked eye can distinguish, so the same battery that looks like transparent.
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For the solar, LED and other specialty markets polysilicon production technology and sapphire and silicon crystal growth systems and related materials worldwide supplier GT Solar announced that Georgia Tech researchers have shown that advanced in the GT ingot growth furnaces The average single-cast silicon battery efficiency of 18.8%, the highest efficiency over 19%.
Georgia Institute of Technology Center of Excellence for Photovoltaic Research and Education and Director AjeetRohatgi ‘Professor Dr. said: “We recently used by the GT-cast material to provide a single battery efficiency test, the results clearly beyond any other agency to date the best published a large area of screen printing a single cast material. This is extremely exciting results show that in the future, photovoltaic manufacturers may use a single casting materials and today’s advanced battery technology to improve cost efficiency of the battery. ”
TomGutierrez GT Solar President and CEO, said: “Dr. Rohatgi group led by the published material to our single-cast production of cell efficiency results are very satisfactory. Our team of senior technology and materials scientists have been sought through the refining process technology casting furnace to achieve structural balance, which produce comparable performance with silicon, and can take advantage of low cost production of polysilicon materials. These recent results indicate that we are achieving this goal has been tremendous progress, We expect later this year to bring it to market. “
“Solar batteries (photovoltaic batteries) is divided into crystalline silicon cells and thin-film battery, the current crystalline silicon PV market, accounting for 80% of the share, accounting for about 20% of the thin-film battery.” Hou Yinglan introduced the.
Crystalline silicon solar cells into solar cells and polycrystalline silicon solar cells, the technology is relatively mature, the conversion rate of 20% -25%. Crystalline silicon cells consume large amounts of energy to manufacture and silicon, and thin-film solar cell thickness of only a few microns to tens of microns, consumption of material is 1% of crystalline silicon cells can be deposited on glass, stainless steel, plastic, ceramic, scope wide, can save a lot of silicon material, the use of appropriate production technology, can be a large area of deposition, greatly improving production efficiency, reduce production costs, thin-film solar cells are considered the most promising new prospects for the development of solar cells.
Thus, TCO glass is in strong demand curve upward range. Amorphous silicon thin film solar cells currently has more than 10% of the PV industry, according to NanoMarkets predicts ,2009-2015 thin-film cell production will be 16 times the room for growth, up 58 percent compound growth rate; in accordance with the current domestic manufacturer of the expansion plan, the domestic film solar cell business expansion expansion will significantly boost demand for high-growth TCO glass.
July 13, according to foreign media reports, Sony said yesterday that 2015 will be involved in lithium-ion automotive battery business. Sony lithium-ion batteries is expected to substantial growth in demand, working with domestic and foreign automobile manufacturers to negotiate.
Temple City, Fukushima Prefecture the Sony factory for lithium-ion battery electrode of the new plant has been built. Shigeki Ishizuka, Executive Director, told reporters, such as the expansion of demand, will consider setting up factories overseas.
Allegedly, Sony is developing the car with lithium-ion battery has a long life, aging is not easy to re-charge characteristics.
What is the lithium-ion battery?
Lithium-ion battery (LithiumIonBattery, abbreviated as LIB), also known as lithium batteries. Into liquid lithium ion battery (LIB) and lithium-ion polymer battery (PLB) 2 class. Among them, the liquid lithium-ion battery is the Li + intercalation compound as the positive and negative secondary battery. LiCoO2 cathode using lithium compounds or LiMn2O4, negative use of lithium – carbon intercalation compounds.
Lithium battery for all commercial use is by far the secondary chemical power in the most excellent battery performance, which is to promote the lithium battery for electric bikes is a key factor.
1,higher than the energy
Whether it is smaller than the energy or the energy to weight ratio, lithium batteries for more than three times higher than lead-acid batteries. Which determines the battery smaller and lighter, its market consumer feel good.
2,Long cycle life
Lithium batteries for electric bikes cycle life is generally more than 800 times, the use of lithium iron phosphate cathode material of lithium batteries can reach about 2000 times, 1.5 times than lead-acid batteries to more than 5 times. This greatly reduces the cost of lithium batteries used to improve the ease of consumer use.
3,has a wide range of charging power
This is the lithium battery has a unique advantage. When needed, can control the charging time 20 ~ 60min, the charging efficiency of 85% or more. Further technological innovation, based on the characteristics of better play, can have good commercial value.
4, rate discharge performance
Lithium battery discharge rate can reach more than 10 magnification, special production can reach 30 magnification. This feature is very beneficial to ride electric bikes intelligent control technology. This feature not only present a very good development and utilization.
China world’s first lithium-ion battery production, the world’s total production accounted for over 1 / 3, more than 100 manufacturers of lithium ion battery materials demand, many manufacturers have planned over the next two years to yield a substantial increase. At present, China’s lithium battery manufacturer BYD liquid form led to TCL lithium polymer battery, led by two giants. TCL completed a polymer lithium-ion battery batteries from R & D to mass production of the whole process, and quickly come to the forefront of this technology. TCL production of polymer lithium batteries in the battery electrochemical impedance, energy density, high temperature discharge, etc. are among the ranks of world-class, BYD is the boss of liquid lithium-ion battery, while TCL is a new generation of lithium-ion polymer battery The boss, lithium polymer has an advantage over liquid lithium.
U.S. research firm Solarbuzz regions has make a prediction of the import volume and the proportion of solar battery in 2015. Import ratio in the world in 2010 accounted for 81% of Europe, 2015 to 53 per cent, while Japan and China, the top five countries in the Asia-Pacific region will increase from 11% to 26%. U.S. market from 5% to 14%.
European import ratio will reduce the symptoms have been present. In 2011, the import ratio in all regions, Europe is expected to decline to 65%. Europe’s leading solar cell into countries such as Germany and Italy, by January 2010 to July 2011 before the Feed-in Tariff reduction in the acquisition of the largest proportion of 1 / 3 effects. Allegedly, the German demand for the first quarter of 2011 over the previous year dropped to half.
In Asia Pacific, by 2010 China’s demand increased rapidly, more than double last year, the Asia-Pacific region after Japan’s second largest importing region. Point of view from different provinces, Jiangsu and other provinces need more strong, demand for public purposes accounted for 49% of China’s total.
June 28, Oregon State University engineers have found a way first: the successful use of inkjet printing technology to produce a CIGS (copper indium gallium selenide) thin-film solar batteries, a new method to reduce raw material waste by 90% and through the use of the rich potential of compounds, significantly reduces the manufacturing costs of solar batteries. Experts said that with the technology, scientists can ultimately produce excellent performance, can be rapid manufacturing, low cost thin-film solar electronics.
The study published in the professional journal “Solar Energy Materials and Solar Cells”, the scientists have also applied for a patent for this technology. Although developed the solar battery conversion rate of 5%, of taking a step forward needs to be improved, but scientists believe the research will eventually lead to a new generation of solar technology.
The latest study, scientists create an ink jet method to use, can chalcopyrite printed on the base, about 5% energy conversion efficiency. Scientists say that in theory, they can get 12% conversion efficiency, so you can create a commercial production of solar cells.
Scientists also and Greg Herman, associate professor of Chemical Engineering school to study other inkjet technology can be applied to the compounds, the cost even lower.
Many ways to make solar cells are either very time-consuming or require expensive vacuum equipment or toxic compounds. Oregon State University scientists are working to eliminate these obstacles and developed a cheaper, more environmentally friendly solar technology. They said that the latest technology may be hatching a lot of new businesses, providing a large number of jobs. If you can continue to lower manufacturing costs, other barriers were 11 break, one day, it can even be directly integrated into the manufacturing of roofing materials in solar cells, solar cells so that the real “flying into the homes of ordinary people.”
Zhang Zhihong, concluded: “Overall, we have developed a simple, quick, direct, solution-based deposition process to manufacture high-quality CIGS solar cell approach, by controlling the low-cost metal salt precursor compound at the molecular level structure , can easily access to safe, simple, stable ink in the air.
June 20, is located in Chengdu Hi-tech Zone, Chengdu, animal husbandry, just Biotechnology Co., Ltd. held a high-performance low-cost, no hydrofluoric acid, lithium hexafluorophosphate fabricated project launch ceremony.
Lithium hexafluorophosphate is the production of lithium-ion batteries required for the electrolyte, the world’s lithium hexafluorophosphate’s largest producer, Japan, China battery manufacturers need lithium hexafluorophosphate most imported from Japan, high prices, lithium hexafluorophosphate synthesis has become a constraint lithium-ion battery industry to develop healthily.
In early May of this year, Chengdu, animal husbandry, low-cost, no hydrofluoric acid just finished fabricated lithium hexafluorophosphate laboratory stage of the study; May 13, fabricated by low-cost no hydrofluoric acid and lithium hexafluorophosphate industry key technology research projects open questions, the company began Preparation of low-cost, no hydrofluoric acid process of lithium hexafluorophosphate in pre-production preparations. Previously, the company in the long-term technology research and exploration in the establishment of statistical thermodynamics of non-independent-particle system new method, and multi-solvent extraction method, solvent crystallization temperature back, colloidal crystallization temperature aging and four polar sieve filtration process to achieve new breakthroughs, the realization of organic, inorganic separation and purification of the new technological revolution.
According to reports, animal husbandry, just biotech companies will jointly Florida Iron and Steel Group, several companies jointly established lithium hexafluorophosphate industry a new company, planning the next three years, the formation of 3,000 tons of lithium hexafluorophosphate capacity, a project at the end of the year into 500 tons of production line as soon as possible occupation of the domestic market. It is reported that the company has fabricated low-cost, no hydrofluoric acid and lithium hexafluorophosphate industrialization of key technologies for the 2012 national “863 Plan” prepared to make the relevant applications for the project.
In safety equipment, health care spending with small small portable solar panel appearing in front of today will become the help of advanced battery charging IC from a new source of value and 27.16 million more STMicroelectronics (NYSE: STM ), a global leader in customer service applications in the frequency spectrum of electronic products. The new IC will greatly enhance the efficiency of the charge indoors or outdoors, use the sun’s radiant energy, thereby extending the operating time of mobile devices and to avoid unexpected power shortage, power connection is not available.
ST’s SPV1040 is a step-up DC-DC converters for portable battery charger, solar cell using the maximum power point tracking (MPPT), from an innovative solar energy technology to collect the maximum possible. It can be connected to the band or even just some of the cells, allowing the use of products such as portable medical equipment, watches, calculators, wireless headsets, toys, or mobile phone. Charger, when the MPPT technology can also be used in safety devices such as sensors and cameras.
The MPPT algorithm dynamically adjusts the charger in SPV1040 embedded input impedance to ensure a perfect match for solar cells, thereby maximizing energy transfer to the battery to substantially increase the overall efficiency of the system. If there is no maximum power tracking, lead to temperature, aging, dust, or unit-to-unit variation of the solar cells can produce change do not match, greatly reducing energy harvest …
Main features of SPV1040:
1, input voltage range: 0.3V to 5.5V
2, integrated, low power loss, synchronous rectification and switching
3, up to 95% efficiency
4, the shutdown pin to help the system-level power management
5, thermal shutdown, battery protection circuit to improve safety and overall system
More environment-friendly research on the human planet, is a very big step to change.
June 13, according to Japanese media reports, the Japanese solar power company Solar Frontier 10 said Sunday announced the country will be rich in cho Miyazaki construction of a solar battery manufacturing plant, expected to begin operations in July, which will become the company’s Palace Miyazaki Prefecture building third plant.
Reportedly, the plant covers an area of about 40 million square meters, the equivalent of “Tokyo Dome” stadium of about 8.6 times. The actual floor area of approximately 158,000 square meters, produces about 900 megawatts of cells annually, will become the world’s largest solar battery manufacturing plant.
It is understood that national wealth factories have started from the February 2011 batch operation, about 800 employees engaged in the production of CIS thin film solar batteries. Then, except Japan, the plant also plans to set up production bases in the virtues of the two countries, the solar battery exported worldwide.
