Solid-state lithium-metal batteries have the potential to be more energy dense, safer and faster charging than traditional lithium-ion batteries but what is the science behind them, potential of the technology and challenges. Here in this video we'll cover how solid-state lithium-metal batteries work, the different configurations/materials and reflect on practical considerations towards understanding how feasible the technology actually is. 00:00 - Introduction 00:11 - Why are we interested in solid-state batteries? 01:22 - Battery thermal runaway 03:14 - What is a solid-state lithium-metal battery? 04:25 - How does a lithium solid-state battery work? 05:19 - Solid-state battery architectures 08:53 - Solid-state electrolyte materials 10:37 - Practical energy density in lithium-ion batteries 12:33 - Energy density losses in packs 13:34 - Seeing beyond the hype - Practical energy densities of solid-state batteries 15:08 - Comparing lithium-metal with lithium-ion batteries 15:41 - Degradation mechanisms and challenges 18:21 - Innovation and scale-up take time 20:03 - Solid-state batteries: Hope or hype?