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Solid‐State Lithium Batteries
In article number 2302939, Walter Sebastian Scheld, Dina Fattakhova‐Rohlfing, and co‐workers show that, in addition to diffusion within the grains, non‐uniform segregation of Co ions at the grain boundaries leads to the formation of Co‐containing phases that strongly affect the ionic and electronic conductivity and dendrite stability of the separator.
Solid‐state batteries (SSBs) with a Li7La3Zr2O12 (LLZO) garnet electrolyte are attracting much attention as robust and safe alternative to conventional lithium‐ion batteries. Technical challenges in the practical implementation of garnet SSBs are related to the need for high‐temperature sintering, which often leads to undesirable chemical reactions with the cathode material. While these reactions...
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