Solid electrolyte for a lithium-ion electrochemical cell
AssigneesSaft, Universite Paris-Est Creteil Val De Marne Upec, Center National de la Recherche Scientifique (CRNS)
InventorsChristian Jordy, Pedro Lopez-Aranguren, Ha Anh Dao, Michel Latroche, Junxian Zhang, Fermin Cuevas
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Abstract
The invention relates to a compound of the formula Li7-xPS6-xXx-z(BH4)z, in which x is selected from the group comprising Cl, Br, I, F and CN, 0≤x≤2, 0≤z≤0.50. This compound can be used as a solid electrolyte of a lithium-ion electrochemical element.
Claims15
A crystalline compound of formula Li7-xPS6-xXx-z(BH4)z wherein:
- X is selected from the group consisting of Cl, Br, I, F and CN
- 0<x≤2
- 0<z≤0.50.
A method comprising the step of substituting a boron-containing anion for a halide ion in a crystalline compound of formula Li7-xPS6-xXx to obtain a crystalline compound of formula Li7-xPS6-xXx-z(BH4)z,
- where 0<z≤0.50,
- where X is selected from the group consisting of Cl, Br, I, F and CN and 0<x≤2
- in order to increase the ionic conductivity of this compound.
Dependencies are inferred from the claim text.