Fabrication of SiOx Ultra-Fine Nanoparticles by IR nanosecond laser ablation as anode materials for lithium ion battery

The oxygen content of the resulting SiOx ultrafine nanoparticles including two phases (SiO1.35 and SiO0.93) with a Si: O atom ratio of about 1: 1.3, for the first time, are prepared by IR laser ablation and used as anode materials for lithium ion battery. The synthesized SiOx ultrafine nanoparticles are utilized as anode material for lithium batteries (LIBs), and show excellent cycling stability and have a capacity is still comparable to that of the commercialized graphite.