2012年6月8日星期五

Laboratory inside the mobile phone battery

Cell phone battery capacity has been severely restricted the expansion of mobile phone functions today,without battery-powered mobile phone, is a piece of scrap metal.
threre is a competition to build a better lithium-ion battery, and thanks to a new experiment involving the use of tin, may grab the lead in the Washington State University researchers.According to market research firm International Data Corporation, in the fourth quarter of 2011, smartphones baratos shipments grew 55 percent from a year ago, 102 million to 158 million units. The agency said the end of this year, one-third of mobile phones shipped worldwide is a smart phone.As a smart phone prices continue to decline, more and more consumers are upgrading, so that they can use the advantages of a wide range of functionality provided by these devices, access to the Internet to download software applications or applications range from games to the GPS solutions.Driving the demand for lithium-ion battery of the moviles baratos android as the use of smart telefonos baratos and equipment become more complex, lithium-ion battery, the soaring demand for electricity. (Lithium-ion battery can be used in the range of other technology, hybrid vehicles and electric vehicles to laptop).According to a 2011 report from technology research firm IHS iSuppli, the lithium-ion battery market is expected to expand 80 times between 2012 and 2020, its annual value of about $ 580 million.Unfortunately, anyone have know of a modern computer or smart telefonos moviles, the battery itself has not kept up, new equipment, forcing the user to frequently charge the demand. This is the main resistance to the further development of a technology. It is also to keep the gasoline engine, electric vehicle matching one of the factors in the performance and range.Tin can to improve the capacity of the lithium-ion battery - to reduce costsGrant Norton, Washington State team led by mechanical and materials engineering professor at the University, recently proposed a new process, the tin nanowires instead of graphite (or "beard"), the battery's anode, the patent, which is anode today.How does it work. Currently, lithium-ion batteries contain two electrodes: the anode and cathode. When you charge the battery, the lithium ions from the cathode move to the anode, they are stored. When the battery is used, the flow reversed and the ions move to the cathode, to generate electricity.The surface of the tin tin whiskers formed naturally over time, has been a tin in the use of electronic equipment, as they may cause a short circuit. Washington State, the team initially set out to control, decided to put him toward extend the life of lithium-ion batteries that the growth of these whiskers.It causes a number of decades, microelectronics equipment failures, hundreds of millions of dollars, Norton said: "The Seattle Post-Intelligencer." I found in the literature, the earliest example is the radar early in World War II. The tin-plated electronic tin whisker growth caused. "Norton and his team believe their innovative lithium-ion battery capacity of the triple.The researchers have planted the purpose of tin whiskers up to 10 mm long. The process involves directly to the use of a common process called electroplating, skip another step in the copper of the battery to an increase of whisker - mixing graphite with adhesive materials - cheaper than the new anode currently used.Another plus tin anode battery looks exactly the same as the current model, so the equipment manufacturers will have to change their design to accommodate them.This means that what tin marketSwitch to the tin anode can have a big impact of a demand for metals. The most obvious advantage is that it will introduce a new tin and fast growing market. Right now, most of the world tin production is used to make solder and tin plating and alloys, especially bronze. Half be used on all production of tin solder.Second, tin can to help the lithium-ion battery to replace the other types of batteries for different purposes.For example, most gas-powered cars using lead-acid batteries, primarily because they are cheaper and have higher capacity than today's lithium-ion battery production, Tin anode lithium-ion battery that can help narrow the gap, and put into use in the automotive market, which is expected to grow rapidly, automotive rising demand in emerging markets.Norton and his team is currently under construction and testing of new anode batteries.
If all goes well, their goal is to put their inventions to market within a year.

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