Mixed silicon–graphite composites as anode material for lithium ion batteries: Influence of preparation conditions on the properties of the material

Mixed silicon–graphite composites were studied as an anode material for LIB. Estimation of the capacity of the composite as a function of silicon mass fraction as well as the lithium mole fraction in the final Li–Si alloy was performed. Based on this estimation, appropriate cycling test was introduced. Possible cycling stability region in terms of Si mass fraction, mole fraction of Li in the Li–Si alloy and average particle size was evaluated.