Abstract: The present invention relates to a compound represented by the general formula Li2+2xM1?xZS4, wherein 0.3?x?0.9; wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; and wherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al. The present invention also relates to a method for preparing the material of the present invention, comprising the steps of: (a) providing a mixture of lithium sulfide Li2S, sulfides MS and ZS2, in a stoichiometric ratio ensuring Li2+2xM1?xZS4 to be obtained, wherein M, Z and x are as defined above; (b) pelletizing the mixture prepared in step (a); (c) heating at a maximum plateau temperature. In still another aspect, the present invention relates to a use of the compound of the present invention as a solid electrolyte, in particular in an all solid-state lithium battery.

Abstract: A compound represented by the general formula Li(Ti1-xZrx)2(PS4)3, wherein 0.01?x?0.25, and found to have high ionic conductivity; a use of the compound as a solid electrolyte, in particular in an all solid-state lithium battery.

Abstract: The present invention relates to a compound represented by the general formula Li2+2xM1-xZS4, wherein 0.3?x?0.9; wherein M is one or more elements selected from the group consisting of Pb, Mg, Ca, Ge and Sn; and wherein Z is one or more elements selected from the group consisting of Ge, Si, Sn and Al. The present invention also relates to a method for preparing the material of the present invention, comprising the steps of: (a) providing a mixture of lithium sulfide Li2S, sulfides MS and ZS2, in a stoichiometric ratio ensuring Li2+2xM1-xZS4 to be obtained, wherein M, Z and x are as defined above; (b) pelletizing the mixture prepared in step (a); (c) heating at a maximum plateau temperature. In still another aspect, the present invention relates to a use of the compound of the present invention as a solid electrolyte, in particular in an all solid-state lithium battery.

Abstract: A method (100) for producing a sintered component being a solid electrolyte and/or an electrode including sulfur for an all-solid state battery, the method including mixing powders (102) so as to obtain a powder mixture, at least one of the powders comprising sulfur, pressing (106) a component with the powder mixture and sintering (108) the component under a partial pressure of sulfur comprised between 150 Pa and 0.2 MPa so as to obtain a sintered component comprising sulfur, the sintered component exhibiting the peaks in positions of 2?=15.08° (±0.50°), 15.28° (±0.50°), 15.92° (±0.50°), 17.5° (±0.50°), 18.24° (±0.50°), 20.30° (±0.50°, 23.44° (±0.50°), 24.48° (±0.50°), and 26.66° (±0.50°) in a X-ray diffraction measurement using CuK? line.

Abstract: A compound represented by the general formula Li(Ti1-xZrx)2(PS4)3, wherein 0.01?x?0.25, and found to have high ionic conductivity; a use of the compound as a solid electrolyte, in particular in an all solid-state lithium battery.