Abstract: An aluminum-doped lithium ion conductor based on a garnet structure includes an aluminum-doped lithium lanthanum zirconate (LLZO). The LLZO is co-doped with at least one trivalent M3+ ion on the lanthanum site. The trivalent M3+ ion has an ionic radius that is smaller than that of La3+ and a higher lithium content is present in comparison to a stoichiometric garnet structure. If M3+ is yttrium, a further trivalent M3+ ion, which is different than Y3+ and has an ionic radius that is smaller than that of La3+, is co-doped on the lanthanum site. Co-doping includes doping on the lanthanum site with ions of the same valence, but smaller diameter, causing a change in lattice geometry to a cubic form. This leads to a stabilization of the cubic crystal modification that is also present with superstoichiometric quantities of lithium.

Abstract: A solid electrolyte including a lithium ion-conducting material, wherein the lithium ion-conducting material includes a crystalline phase and an amorphous phase, wherein the crystalline phase includes a main crystal phase, wherein the main crystal phase has a proportion of the crystalline phase of at least 50% by weight, wherein the relative density of the solid electrolyte is at least 90% and wherein the solid electrolyte has a microstructure in which less than 10% of the cross-sectional area of the solid electrolyte is accounted for by grains with a diameter of more than 30 ?m.

Abstract: A lithium-ion-conducting composite material and process of producing are provided. The composite material includes at least one polymer and lithium-ion-conducting particles. The particles have a sphericity ? of at least 0.7. The composite material includes at least 20 vol % of the particles for a polydispersity index PI of the particle size distribution of <0.7 or are present in at least 30 vol % of the composite material for the polydispersity index in a range from 0.7 to <1.2, or are present in at least 40 vol % of the composite material for the polydispersity index of >1.2.

Abstract: A sintering aid mixture for sintering solid-state ion conductors, electrode materials, or the like for solid-state batteries is provided. The mixture includes at least one sol-gel precursor and/or at least one sol-gel direct precursor produced from at least one sol-gel precursor.

Abstract: A method for producing a conductive composite material for a battery such as a solid-state battery includes providing an ion-conducting electrolyte matrix that can be plasticized and that includes an ion-conducting first substance a base substance that can be plasticized and/or a polyelectrolyte; providing a second ion-conducting substance in the form of ion-conducting particles; introducing the ion-conducting particles into the electrolyte matrix to produce a mixture consisting of the ion-conducting particles and the electrolyte matrix; and homogenizing the mixture.

Abstract: In a method for producing a solid-state lithium-ion conductor material, water and/or steam is used as a medium during the cooling or quenching of an obtained intermediate product. The intermediate product can be comminuted and/or subjected to a cooling process, resulting in the production of a powder in one or more comminution steps. The solid-state lithium-ion conductor material has an ion conductivity of at least 10?5 S/cm at room temperature and a water content of <1.0 wt %. The solid-state lithium-ion conductor material can be used in the form of a powder in batteries or rechargeable batteries, preferably lithium batteries or rechargeable lithium batteries, in particular, separators, cathodes, anodes, or solid-state electrolytes.

Abstract: A method includes: providing a plate-like glass element having side faces and an ultrashort pulse laser having a laser beam; directing the laser beam onto one of the side faces; concentrating the laser beam by focusing optics to form an elongated focus in the glass element; producing a filament-shaped flaw in a volume of the glass element by a radiated-in energy of the laser beam, a longitudinal direction of which runs transverse to one of the side faces, and the ultrashort pulse laser radiates in a pulse or a pulse packet having at least two successive laser pulses to produce the filament-shaped flaw; widening the filament-shaped flaw to form a channel by exposing the glass element to an etching including an etching medium which removes glass at a rate of less than 8 ?m per hour; and introducing rounded, hemispherical depressions in a wall of the channel by the etching.

Abstract: The disclosure relates to a method for producing a solid-state lithium ion conductor material in which the use of water and/or steam is a medium when the obtained intermediate product is cooled or quenched and, if needed, comminution of the intermediate product and/or carrying out of a cooling process with the production of a powder in one comminution step or in a plurality of comminution steps leads or lead to especially advantageous production products. The subject of the disclosure is also the solid-state lithium ion conductor material that has an ion conductivity of at least 10?5 S/cm at room temperature as well as a water content of <1.0 wt %. The disclosure further relates to the use of the solid-state lithium ion conductor material in the form of a powder in batteries or rechargeable batteries, preferably lithium batteries or rechargeable lithium batteries, in particular, separators, cathodes, anodes, or solid-state electrolytes.

Abstract: A substrate composed of hard brittle material, the substrate including: a cavity on at least one side surface of the substrate, the cavity including a side wall, the cavity further including a bottom surface having a structure having a plurality of substantially hemispherical depressions.

Abstract: A method for producing a cavity in a substrate composed of hard brittle material is provided. A laser beam of an ultrashort pulse laser is directed a side surface of the substrate and is concentrated by a focusing optical unit to form an elongated focus in the substrate. Incident energy of the laser beam produces a filament-shaped flaw in a volume of the substrate. The filament-shaped flaw extends into the volume to a predetermined depth and does not pass through the substrate. To produce the filament-shaped flaw, the ultrashort pulse laser radiates in a pulse or a pulse packet having at least two successive laser pulses. After at least two filament-shaped flaws are introduced, the substrate is exposed to an etching medium which removes material of the substrate and widens the at least two filament-shaped flaws to form filaments. At least two filaments are connected to form a cavity.

Abstract: The present invention relates to a lithium ion-conducting material, especially a glass-ceramic, having improved dendrite stability (stability to the formation of dendrites), and to use and a process for production.

Abstract: A plate-like glass element includes a pair of opposite side faces and an opening having a transverse dimension of at least 200 ?m. The opening is delimited by an edge. The edge has a plurality of rounded, substantially hemispherical depressions that adjoin one another. The plurality of rounded, substantially hemispherical depressions having abutting concave roundings which form ridges.

Abstract: The present disclosure relates to a lithium ion-conducting glass ceramic which comprises a residual glass phase that is also ion-conducting, a process for the production thereof as well as its use in a battery. The glass ceramic according to the present disclosure comprises a main crystal phase which is isostructural to the NaSICon crystal phase, wherein the composition can be described with the following formula: Li1+x?yMy5+Mx3+M2?x?y4+(PO4)3?, wherein x is greater than 0 and at most 1, as well as greater than y. Y may take values of between 0 and 1. Here, the following boundary condition has to be fulfilled: (1+x?y)>1. Here, M represents a cation with the valence of +3, +4 or +5. M3+ is selected from Al, Y, Sc or B, wherein at least Al as trivalent cation is present. Independently thereof, M4+ is selected from Ti, Si or Zr, wherein at least Ti as tetravalent cation is present. Independently thereof, M5+ is selected from Nb or Ta.

Abstract: A method for producing a conductive composite material for a battery such as a solid-state battery includes providing an ion-conducting electrolyte matrix that can be plasticized and that includes an ion-conducting first substance a base substance that can be plasticized and/or a polyelectrolyte; providing a second ion-conducting substance in the form of ion-conducting particles; introducing the ion-conducting particles into the electrolyte matrix to produce a mixture consisting of the ion-conducting particles and the electrolyte matrix; and homogenizing the mixture.

Abstract: A method for producing a cavity in a substrate composed of hard brittle material is provided. A laser beam of an ultrashort pulse laser is directed a side surface of the substrate and is concentrated by a focusing optical unit to form an elongated focus in the substrate. Incident energy of the laser beam produces a filament-shaped flaw in a volume of the substrate. The filament-shaped flaw extends into the volume to a predetermined depth and does not pass through the substrate. To produce the filament-shaped flaw, the ultrashort pulse laser radiates in a pulse or a pulse packet having at least two successive laser pulses. After at least two filament-shaped flaws are introduced, the substrate is exposed to an etching medium which removes material of the substrate and widens the at least two filament-shaped flaws to form filaments. At least two filaments are connected to form a cavity.

Abstract: A method for producing a cavity in a substrate composed of hard brittle material is provided. A laser beam of an ultrashort pulse laser is directed a side surface of the substrate and is concentrated by a focusing optical unit to form an elongated focus in the substrate. Incident energy of the laser beam produces a filament-shaped flaw in a volume of the substrate. The filament-shaped flaw extends into the volume to a predetermined depth and does not pass through the substrate. To produce the filament-shaped flaw, the ultrashort pulse laser radiates in a pulse or a pulse packet having at least two successive laser pulses. After at least two filament-shaped flaws are introduced, the substrate is exposed to an etching medium which removes material of the substrate and widens the at least two filament-shaped flaws to form filaments. At least two filaments are connected to form a cavity.

Abstract: A lithium-ion-conducting composite material and process of producing are provided. The composite material includes at least one polymer and lithium-ion-conducting particles. The particles have a sphericity ? of at least 0.7. The composite material includes at least 20 vol % of the particles for a polydispersity index PI of the particle size distribution of <0.7 or are present in at least 30 vol % of the composite material for the polydispersity index in a range from 0.7 to <1.2, or are present in at least 40 vol % of the composite material for the polydispersity index of >1.2.

Abstract: A powder with particulates of a lithium ion-conducting material has a conductivity of at least 10?5 S/cm. The powder has an inorganic carbon content (Total Inorganic Carbon Content (TIC)) of less than 0.4 wt % and/or an organic carbon content (Total Organic Carbon Content (TOC)) of less than 0.1 wt %. The particulates have a d50 particle size in a range from 0.05 ?m to 10 ?m. The particulates have a particle size distribution log (d90/d10) of less than 4.

Abstract: A lithium-ion-conducting composite material and process of producing are provided. The composite material includes at least one polymer and lithium-ion-conducting particles. The particles have a sphericity ? of at least 0.7. The composite material includes at least 20 vol % of the particles for a polydispersity index PI of the particle size distribution of <0.7 or are present in at least 30 vol % of the composite material for the polydispersity index in a range from 0.7 to <1.2, or are present in at least 40 vol % of the composite material for the polydispersity index of >1.2.

Abstract: The present disclosure relates to a lithium ion conductive material, preferably a lithium ion conductive glass ceramic, the material including a garnet-type crystalline phase content and an amorphous phase content. The material has a sintering temperature of 1000° C. or lower, preferably 950° C. or lower and an ion conductivity of at least 1*10?5 S/cm, preferably at least 2*10?5 S/cm, preferably at least 5*10?5 S/cm, preferably at least 1*10?4 S/cm, and the amorphous phase content includes boron and/or a composition including boron.