The effects of particle size on SnO electrode performance in lithium-ion cells

It was observed that by decreasing the SnO particle size, while maintaining the same grain size, the reversible and initial specific capacities increased. It is believed that as the particle size decreases the number of Li-ion insertion sites increase and Li-ion diffusion distances decrease thus, increasing both the initial and reversible capacities. A reversible specific capacity of 657 mA h/g was achieved for SnO, which is one of the highest to date for insertion anodes.