High-energy rechargeable batteries seemed impossible, until we made them. Sponsored by CodeRabbit. Cut code review time and bugs in half. Try CodeRabbit at https://coderabbit.link/veritasium If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV ▀▀▀ 0:00 What’s inside a battery? 4:11 How does a battery