Guests David Klanecky, John Voelcker, Sean McElroy, and John McElroy discuss EV battery recycling, repurposing batteries for grid storage, battery swapping in urban areas, challenges in testing and recycling battery cells, and the potential of recycling different types of batteries like sulfur lithium and solid-state batteries. The conversation highlights the importance of sustainable practices and efficient recycling strategies in the evolving EV market.