Commercialization of Silicon Anodes for Electric Vehicle Applications

摘要

1. Phase change and mechanical stress in pure Si particles are root causes of pure Si degradation. 2. Design of material and microstructure is necessary to mitigates these effects, but comes at the cost of smaller energy density gains compared to pure Si. 3. Electrolyte composition has strong impact on cycle life. 4. Prelithiation reduces undesired side reactions and massively improves cycles life. ～500 cycles with with prelithiated 55% Si-alloy anode achieved in full cell.