Abstract:The materials Li3YX6 (X = Cl, Br) are Li-ion conductors to be used as solid electrolytes in all solid-state batteries. Solid electrolytes ideally have high ionic conductivity and (electro)chemical compatibility with the electrodes. It was proven that introducing Br to Li3YCl6 increases ionic conductivity, but, according to thermodynamic calculations, should also reduce oxidative stability. In this paper, the trade-off between ionic conductivity and electrochemical stability in Li3YBrxCl6-x (x = 0 – 6) is inves… Show more
“…This paper shows that aliovalent doping does not only affect the charge carrier concentration, but can also lead to changes in the distribution of cations in the cell, affecting diffusivity on different timescales. For future studies, it would be interesting to combine this strategy with other successful strategies such as for example halogen alloying, 66 which can affect ionic conductivity due to a change in lattice parameter (bottleneck size), lattice polarizability as well as potentially the configurational entropy.…”
Chloride based solid electrolytes are considered interesting candidates for catholytes in all solid state batteries due to their high electrochemical stability, which allows the use of high voltage cathodes without...
“…This paper shows that aliovalent doping does not only affect the charge carrier concentration, but can also lead to changes in the distribution of cations in the cell, affecting diffusivity on different timescales. For future studies, it would be interesting to combine this strategy with other successful strategies such as for example halogen alloying, 66 which can affect ionic conductivity due to a change in lattice parameter (bottleneck size), lattice polarizability as well as potentially the configurational entropy.…”
Chloride based solid electrolytes are considered interesting candidates for catholytes in all solid state batteries due to their high electrochemical stability, which allows the use of high voltage cathodes without...
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