vergleich.png (IMAGE)
Caption
Left: Porous solid electrolyte through which lithium dendrites (gray) can penetrate to the lithium surface (silver); the interface is protected only by a natural boundary layer (pink).
Right: Densely sintered solid electrolyte produced at the Paul Scherrer Institute PSI with a stabilising lithium fluoride coating (blue) that prevents dendrite penetration and protects the lithium surface.
Credit
© Paul Scherrer Institute PSI/Jinsong Zhang
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