Lithium-ion batteries are at the heart of modern day consumer electronics and electric vehicles, yet improvements in the technology are still needed for further industrial application. In this video, the basics of lithium-ion batteries are discussed along with comparisons of different types of batteries, the manufacturing process and industry landscape. 00:00 Introduction 00:15 Why batteries? 01:41 Battery technologies 04:30 How does a battery work? 06:15 Key performance metrics 08:14 Battery industry structure 09:49 Do we have good chemistry? Anodes, cathodes and electrolytes 13:48 What is the perfect cathode? LCO, LMO, LFO, NMC, NCA 15:03 How do we make batteries? Battery manufacturing 16:16 The C-rate and Amp-hours (Ah) 17:16 Discharge curves 17:51 Watt about energy? 19:22 Form factors - Prismatic, cylindrical and pouch cells 20:17 How do we make better batteries 21:08 Summary Check out my other video on battery fires! Battery fires! What happens when batteries are abused? https://www.youtube.com/watch?v=VWMfeseybt4 #Batteries #Energystorage #Materials Twitter: https://twitter.com/ICBillyWu Personal website: http://www.imperial.ac.uk/people/billy.wu About us: http://www.imperial.ac.uk/design-engineering/