The Fully Charged Podcast From Solid State to Sodium - THESE are the next Big Battery Breakthroughs!
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Apr 21, 2025 Euan McTurk, a consultant battery electrochemist and creator of Plug Life Television, dives into the cutting-edge world of battery technology. He discusses the evolution from lithium-ion to sodium-ion batteries, emphasizing their environmental benefits. The conversation highlights innovations in lithium iron phosphate batteries and the challenges of scaling solid-state technologies. McTurk also tackles ethical concerns around battery sourcing and explores alternative energy storage solutions, painting an exciting picture of the future of energy.
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Basics of Lithium-Ion Batteries
- Lithium-ion batteries use lithium shuttling between a graphite anode and a lithium cobalt oxide cathode.
- Their lightweight chemistry enables high energy density and made electric cars viable by extending range per charge.
Rise of Lithium Iron Phosphate
- Nearly half of the world's lithium-ion batteries are now lithium iron phosphate (LFP), dominated by Chinese manufacturers.
- LFP batteries offer lower cost, ethical sourcing, and better safety, prompting a global shift towards this chemistry.
Potential of Sodium-Ion Batteries
- Sodium-ion batteries mimic lithium-ion operation but use abundant sodium, enabling affordable tech and cheaper current collectors.
- They can compete with LFP in EVs and revolutionize stationary storage by replacing lead-acid batteries.