Materialism: A Materials Science Podcast
An exploration of the past, present, and future of materials science and engineering.
5 months ago

Episode 31: Ionic Conduction

Meet the materials that allow ions to move right through them!

Diffusion is when atoms move through a material in response to a concentration gradient. However, some ions can move through a material in response to an electric field and can do so very quickly! Even more remarkable, the motion of ions can be restricted to ions of a certain type such as O2-, H+, Na+, Li+ etc. What is required of a material in order for it to be an ionic conductor? What technologies do ionic conductors make possible? Why are they necessary for batteries, fuel cells, sensors, electrolyzer, and more? We answer these questions and dive into the exciting recent news of solid-state batteries in this episode. We cover some of the key fast ion conductors like YSZ, BASE, LSGM, Nafion, LLZO, and NaSiCON.

References

https://en.wikipedia.org/wiki/Lithium-ion_battery#Electrolytes https://en.wikipedia.org/wiki/Lithium-ion_battery#Fire_hazard https://en.wikipedia.org/wiki/Fast_ion_conductor#Superionic_conductor https://en.wikipedia.org/wiki/Advanced_superionic_conductor#cite_note-1 https://en.wikipedia.org/wiki/Electrical_resistivity_and_conductivity https://en.wikipedia.org/wiki/Einstein_relation_(kinetic_theory) https://en.wikipedia.org/wiki/Yttria-stabilized_zirconia https://en.wikipedia.org/wiki/LLZO https://en.wikipedia.org/wiki/Nafion#:~:text=Nafion%20is%20a%20brand%20name,properties%20that%20are%20called%20ionomers.https://en.wikipedia.org/wiki/NASICON#:~:text=NASICON%20is%20an%20acronym%20for,are%20replaced%20by%20isovalent%20elements.

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Materialism Team: Taylor Sparks (co-creator, co-host, production), Andrew Falkowski (co-creator, co-host, production), Jared Duffy (production, marketing, and editing)

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