subject: Lithium Batteries Are The Future For The Auto Industry [print this page] Lithium Batteries Are The Future For The Auto Industry
If vehicles powered by battery are truly the future of the automobile industry, it's appropriate to understand who will be profiting from the production of these battery powered lithium-ion "engines" (Sony vgp-bps8a batterylife). While mass production at lithium-ion battery manufacturers is yet to begin, several large auto companies have established relationships and inked deals for future vehicle models. However, there is currently a dilemma to be resolved before any mass production takes place. The auto makers are telling the battery companies they need to ramp production capabilities before receiving a supply contract, while battery companies are waiting for the supply contracts before commencing mass production.
As mentioned, the rapid deployment of capital towards alternative energy projects was for the most part spurred by the rapid increase in oil prices in 2008. Climate control has also played a large factor, however it's likely that high gasoline prices provided the initial spark of urgency behind finding alternative sources of power. Interestingly, most of the world's resources for the inputs into lithium-Ion batteries come from China. Therefore, it's entirely possible that battery powered vehicles won't solve any energy dependence issues whatsoever. Instead, the U.S. would simply be shifting their reliance to another country.
Still Working Out The Kinks
The performance of typical lithium-ion (Li-ion) or nickel metal hydride (NiMH) rechargeable batteries (Acer batbl50l6 batteries) degrades significantly when they are rapidly charged or discharged. Making the active material in the battery a thin film allows for very fast charging and discharging, but reduces the capacity to nearly zero because the active material lacks volume to store energy.
Electrical storage devices known as capacitors charge and discharge very quickly, but because they hold their charge on the surface of metal plates, their storage capacity is limited.Batteries, on the other hand, can store much more energy because they hold their charge inside the bulk of a material, usually an oxide or a phosphate compound located inside the cathode. Unfortunately, because these materials are not good conductors of electric charge, it takes a long time to get the charge in or out of a battery.
Scientists have tried to get around this problem in the past by adding electrical conductors to the energy-storage material, but this reduces the material's volume, so it tends to lower the battery's capacity. University of Illinois materials scientist Paul Braun and his colleagues came up with a novel solution, published online this month inNature Nanotechnology. They built a tiny metal lattice with so many nooks and crannies that when it's filled with a charge-storage material, the electrons in the material never have far to go before reaching the metal and being conducted away.
New Type Of Battery
Researchers from the University of Illinois have created a new type of lithium battery by focusing on reducing the distance that the ions have to move inside the battery before reaching an electrode. To facilitate this reduction they used a very carefully structured cathode. The process they used is also straightforward and could be used in mass production according to Ars Technica.
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