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BBC Inside Science
Next-gen batteries and 'dark oxygen'
Feb 20, 2025
Mark Miodovnik, a materials scientist from UCL specializing in batteries, discusses the urgent need for next-gen battery technologies amid recent lithium-ion plant fires. He highlights the limitations of current lithium-ion solutions and the emergence of alternatives like solid-state and sodium batteries. Additionally, the conversation shifts to 'dark oxygen' found in deep oceans, potentially impacting marine life. Anjana Ahuja joins to share intriguing science stories, including innovative materials and the peculiar behavior of contagious urination in chimpanzees.
28:17
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Quick takeaways
- The podcast discusses the urgent need for safer and more efficient battery technologies, like lithium-sulfur and solid-state batteries, in the face of lithium-ion shortcomings.
- A new discovery in the deep ocean regarding polymetallic nodules raises significant questions about oxygen production and its ecological implications for marine life.
Deep dives
The Challenges of Lithium-Ion Batteries
Lithium-ion batteries have become central to modern technology due to their energy density and lightweight design, making them ideal for smartphones and electric vehicles. However, they are not without issues, as evidenced by incidents like a fire at a major battery storage facility in California. The batteries can experience inefficient cycles due to wear and tear, resulting in reduced energy storage over time. Additionally, concerns about safety have emerged, with instances of fires originating from damaged batteries, highlighting the importance of proper recycling and disposal practices.
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