Nanocrystalline-Amorphous Silicon Composite Anode by Chemical Reduction of Silicon Salts

作者: Ramalinga Kuruba , Prashant N. Kumta , Rigved Epur , Ayyakkannu Manivannan

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摘要: Lithium ion batteries have become the workhorse for most of portable electronic devices such as cell phones, PDA’s, laptops etc. They are also emerging a potential flagship energy storage alternatives to fossil fuels in automobiles curb CO2 emissions and our dependance on non-renewable resources. This is primarily due high density offered by lithium batteries. Graphite which commonly used anode has theoretical capacity 372 mAh/g. Since, current requirements demands more per unit weight device, silicon with 4200mAh/g been identified an alternative anode. But undergoes large volume expansion contraction (>300%) upon alloying dealloying leading electrode pulverization hence loss capacity.

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