Synthesize of negative electrode composed 3D nano-structures and Sn based material for sodium ion secondary battery

Li-ion batteries have been widely used for portable electric devices; cellphones, PCs, cameras, depending on high energy density and efficiency. They will be increasingly used for electric vehicles and energy storage storage devices. Li-ion batteries must use miner metal to keep performance, despite a decrease supply of miner metal. In addition, cutting cost and enhancing performance are needed. Take PHEV for instance, battery cost is $300/kWh by 2014.