For over years, #battery manufacturers around the world are rejoicing in #solid-#state #cells for its groundbreaking characteristics. Recap 2023: Yes, we see multiple outstanding (almost-) solid-state lab cells (some of which are already on the market!) but the high expectations have never really met reality: Not a single car manufacturer (2023) is currently placing all-solid-state cells in their EVs. So, whats taking them so long?

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Our podcast guest Prof. Jennifer Rupp (TU Munich) researches solid-state materials for sustainable energy storage and conversion. Her research on batteries is currently centered on designing novel classes of lithium solid-state conductors, inventing cheap battery solid-state synthesis routes for new hybrid and solid cell designs and defining cyber-physical battery synthesis and high throughput analytics.

We ask her how solid-state batteries work and what types of ASSBs (all-solid-state batteries) could deliver tomorrow's best performance. Obviously, like in any other current lithium-ion batteries, the interplay between anode, cathode and electrolyte is mystery - but determinant of success at the same time.

So, what material approaches for solid-state electrolytes are the experts talking about? Solid electrolytes can be divided into organic and inorganic electrolytes. For inorganic electrolytes, the advantages for safety are predominant as they are non-flammable and do not contain toxic materials. Oxide-based electrolytes usually have good chemical stability and are compatible with high-energy cathode materials. However, the ion conductivity is lower than for sulfide-based electrolytes. Sulfide-based electrolytes generally have a higher ionic conductivity, but are more chemically unstable.

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Music:
“Fuzz Buzz” licensed via Music Vine: ZNUNZWRN01IAVWZL

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