A method includes contacting a metallic compound comprising a first metallic cation, with a melt comprising a metallic polysulfide comprising a second metallic cation, thereby forming a molten metallic polysulfide of the first metallic cation. The method also includes cooling the melt to form a sulfur phase and a solid phase comprising the molten metallic polysulfide of the first metallic cation.

A method includes contacting a metallic compound comprising a first metallic cation, with a melt comprising a metallic polysulfide comprising a second metallic cation, thereby forming a molten metallic polysulfide of the first metallic cation. The method also includes cooling the melt to form a sulfur phase and a solid phase comprising the molten metallic polysulfide of the first metallic cation.

A method (100) for producing a sintered component being a solid electrolyte and/or an electrode including titanium and sulfur for an all-solid state battery, the method including mixing powders (102) so as to obtain a powder mixture comprising titanium and sulfur, pressing (106) a component with the powder mixture, sintering (108) the component under a partial pressure of sulfur comprised between 200 Pa and 0.2 MPa so as to obtain an intermediate sintered component comprising titanium and sulfur, and sintering (114) the intermediate sintered component under a partial pressure of sulfur equal to or smaller than 150 Pa at a temperature plateau comprised between 200 C. and 400 C. so as to obtain a sintered component comprising titanium and sulfur, the solid electrolyte 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.

In certain embodiments, a first semiconductor material is vaporized to generate a vapor phase condensate. The vapor phase condensate is allowed to form nanoparticles. The nanoparticles are annealed to yield nanoparticles or cores. The cores are overcoated by introducing a solution containing second semiconductor material precursors in a coordinating solvent into a suspension of cores at a desired elevated temperature and mixing for a period of time sufficient to cause diffusion of the shell into the core. The diffusion of the shell into the core causes the quantum dots to exhibit a broadened optical emission. The produced quantum dots may be incorporated into a quantum dot based radiation source.

In certain embodiments, a first semiconductor material is vaporized to generate a vapor phase condensate. The vapor phase condensate is allowed to form nanoparticles. The nanoparticles are annealed to yield nanoparticles or cores. The cores are overcoated by introducing a solution containing second semiconductor material precursors in a coordinating solvent into a suspension of cores at a desired elevated temperature and mixing for a period of time sufficient to cause diffusion of the shell into the core. The diffusion of the shell into the core causes the quantum dots to exhibit a broadened optical emission. The produced quantum dots may be incorporated into a quantum dot based radiation source.

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.

A sulfide-based solid electrolyte which is appropriately usable for a negative electrode of an all-solid-state battery and a method of manufacturing the same, may include a lithium element (Li), a sulfur element (S), a phosphorus element (P), and a halogen element (X), wherein the halogen element (X) is selected from the group consisting of a chlorine element (Cl), a bromine element (Br), an iodine element (I), and combinations thereof, and the molar ratio (S/P) of the sulfur element (S) to the phosphorus element (P) is 5 to 7.

There is provided a method of forming a porous particle comprising an electrically conductive continuous shell encapsulating a core, said core comprising an elemental compound that reversibly reduces in the presence of a cation and oxidizes in the absence of said cation, said method comprising the steps of: a) encapsulating an elemental compound precursor with said electrically conductive shell; b) reacting said elemental compound precursor with an oxidation agent to oxidise said elemental compound precursor to form said elemental compound, thereby forming said electrically conductive shell encapsulating said core comprising said elemental compound.

There is provided a method of forming a porous particle comprising an electrically conductive continuous shell encapsulating a core, said core comprising an elemental compound that reversibly reduces in the presence of a cation and oxidizes in the absence of said cation, said method comprising the steps of: a) encapsulating an elemental compound precursor with said electrically conductive shell; b) reacting said elemental compound precursor with an oxidation agent to oxidise said elemental compound precursor to form said elemental compound, thereby forming said electrically conductive shell encapsulating said core comprising said elemental compound.

Provided are nanoparticles passivated with a cationic metal-chalcogenide complex (MCC) and a method of preparing the same. A passivated nanoparticle includes: a core nanoparticle; and a cationic metal-chalcogenide compound (MCC) fixed on a surface of the core nanoparticle.