Structural studies of SiG anodes for Lithuim-ion Batteries

Silicon-graphite (SiG) electrodes are promising anode candidates for next-generation lithium-ion batteries. However, there a still technical challenges to overcome for a successful integration into the battery technology. One of them is the formation of electrochemically less reversible phases, which decreases the overall specific capacity. Another challenge is the optimization of Si/graphite ratio so that the two components participate on the electrochemical (de)-lithiation reactions and that their structures are not affected upon cycling. The proposed analyses will serve to develop improved durable SiG composite anodes and to define operating conditions that minimize the occurrence of undesired side reactions.