Promoting Si-graphite composite anodes with SWCNT additives for half and NCM811 full lithium ion batteries and assessment criteria from an industrial perspective

Progress Towards Extended Cycle Life Si-based Anodes: Investigation of Fluorinated Local High Concentration Electrolytes

“…1 As a result, current Li-ion automotive cells which incorporate Si as an anode component contain only a low percentage (5%-10%). 2 Strategies for improving the electrochemistry of Si in lithium ion batteries can be defined broadly in three categories: (1) engineering of the Si material/electrode structure to mitigate the effects of volume change, 3,4 (2) integrating electrically conductive and mechanically strong polymeric binders to improve electrode integrity, [5][6][7] and (3) tailoring the electrolyte to optimize the properties of the SEI layer. [8][9][10] While (1) and ( 2) can temper the effects of volume change and may ultimately play a role in future Si-anode technology, the formation/reformation of the SEI in each cycle continues.…”