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A Brief Introduction to Solid-State Batteries

Solid state market at 36% annual growth. (https://www.grandviewresearch.com/)
Dendrite growth in li-ion battery leads to shorting (SLAC National Laboratory, Stanford University)
Solid state vs. conventional battery architecture
Classification of solid state batteries

Polymer-based solid electrolytes

Schematic presentation of two possible mechanisms of ion transport in polymers: The liquid-like (lower left) requires the motion of the polymer segment and depends on the rate of segmental relaxation, whereas the solid-like (lower right) is based on ion jumps over an energy barrier in the frozen polymer matrix. (Reprinted with permission from “V. Bocharova and A. P. Sokolov, Perspectives for Polymer Electrolytes: A View from Fundamentals of Ionic Conductivity, April 2020”. Copyright 2020, American Chemical Society.)

Inorganic solid electrolytes

Schematic representation of different mechanisms in lattice diffusion: (a) (mono)Vacancy mechanism. (b) Interstitial mechanism. (c) Interstitialcy mechanism. (d) Direct exchange and ring diffusion. (H. Mehrer, Diffusion in Solids, Springer-Verlag, 2007.)

Commercialization

Battery companies are testing a range of technologies in the quest to produce solid-state batteries (Roland Zenn, September 2020)
Many OEMs have announced their solid-state battery plans. (CIC EnergiGUNE)
Solid state batteries from a) Solid power b) Quantumscape c) SES Power and d) Factorial. (official websites and communication of respective companies)

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