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Toyota working on sodium-ion batteries that will extend EV range to 500-1,000 kilometers

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Toyota working on sodium-ion batteries that will extend EV range to 500-1,000 kilometers

Toyota has developed a new material that can significantly boost the capacity of sodium-ion batteries, the Nikkei business newspaper reports.

The new positive electrode material could lead to the development of batteries that can power electric vehicles for 500 kilometers to 1,000 kilometers on a single charge.

According to the report, the Japanese carmaker has built a prototype battery using the new material. The battery, which has the size and shape of a coin and functions at room temperature, is able to generate an electric voltage value that’s 30 percent higher than that of lithium-ion batteries. The electric voltage value is used to calculate the maximum mileage of electric vehicles.

Toyota believes that electric vehicles will not become popular until driving ranges offered by these cars reach 500 to 1,000 kilometers. At present, EVs can travel about 200 kilometers on currently available batteries, and up to 300 kilometers on lithium-ion batteries. Hybrid vehicles currently have a range of up to 1,000 kilometers. Toyota said it will continue research, with the goal of putting its new sodium technology into commercial use by 2020.

Other companies working on sodium-ion prototypes are Sumitomo Chemical and Sumitomo Electric, each with its own project.

Via Paultan.org

by Dan Mihalascu (my Google+) - Friday, November 16th, 2012 - filed under News, Technology, Toyota. Image credit: .
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