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Nanowire Anodes for Batteries

Silicon nanowire-carbon anodes enable long cycling stability in Lithium Sulfur batteries

Lithium-sulfur (Li/S) batteries are pointed out as one of the most promising systems for advanced applications in automotive energy storage. High area capacity Li/S full-cells with balanced electrodes to address high power electro-mobile applications with energy densities of up to 410 Wh/kg for all active components has just been reported in the Nature journal Scientific Reports. The work is the result of a collaborative work between researchers of NaMLab gGmbH, Fraunhofer IWS, TU Dresden and Leibniz IFW. The special anode is made of an assembly comprising silicon nanowires as active material conformally grown on a 3D carbon mesh as a light-weight current collector, offering extremely high areal capacity for reversible Li storage of up to 9 mAh/cm2. In contrast to metallic Li, the presented system with SiNW anode exhibits superior characteristics in Li/S batteries such as safe operation, long cycle life and simple handling. Find out more in the open access article following this link:

http://www.nature.com/articles/srep27982

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