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Research on Metallic Silicon Used as Lithium Ion Battery Anode Material

In this research, metallic silicon was used as anode material of lithium ion batteries. Electrochemical lithium storage property of metallic silicon was studied which is compared with pure silicon. The results show that for different content of electrical conductors in electrode, the first discharging and charging specific capacity of metallic silicon is similar to pure silicon. The attenuation on capacity of metallic silicon is slower than pure silicon. The lithium storage mechanism of metallic silicon is similar with pure silicon. The testing results of metallic silicon under different charging and discharging rate show that the lithium storage property of metallic silicon is better under lower charging and discharging rate.