A method of producing perovskite nanocrystalline particles using a liquid crystal includes a first operation for preparing a mixed solution including a first precursor compound, a second precursor compound, and a first solvent. a second operation for preparing a precursor solution by adding an organic ligand to the prepared mixed solution, a third operation for performing crystallization treatment after adding the prepared precursor solution to a reactor containing a liquid crystal, and a fourth operation for separating the perovskite nanocrystalline particles from the crystallized solution through a centrifugal separator.

Amorphous metal chalcogenides having the formula A.sub.2xSn.sub.xSb.sub.3-xQ.sub.6 are provided. In the chalcogenides, A is an alkali metal element, such as K or Cs, and Q is S or Se. The value of x can be in the range from 0.8 to 1. Porous chalcogenide materials made from the amorphous chalcogenides are also provided. These porous materials comprise metal chalcogenides having the formula (AB).sub.2xSn.sub.xSb.sub.3-xQ.sub.6, wherein x is in the range from 0.8 to 1, A and B are two different alkali metal elements, and Q is S or Se.

The solid electrolyte according to an embodiment of the present disclosure is represented by the following formula (1):
Li.sub.7?yLa.sub.3(Zr.sub.2?x?yGe.sub.xM.sub.y)O.sub.12(1) wherein 0.00<x?0.40, 0.00<y?1.50, M is Sb or is Sb and an element of at least one of Nb and Ta.

The teachings herein are directed at a lithium secondary battery negative electrode active material consisting of a Sn Sb based sulfide that delivers a high electrode capacity density, excellent output characteristics, and excellent cycle life characteristics and also provide a method for manufacturing the lithium secondary battery negative electrode active material, said method being capable of easily manufacturing the high performance lithium secondary battery negative electrode active material at low cost without requiring a high-temperature processing step and special facilities as required in a glass melting method. The negative electrode active material preferably is prepared using a method that includes a step of obtaining a Sn Sb based sulfide precipitate by adding an alkali metal sulfide to a mixed solution of a tin halide and an antimony halide.

A battery cell having an anode or cathode comprising an acidified metal oxide (AMO) material, preferably in monodisperse nanoparticulate form 20 nm or less in size, having a pH<7 when suspended in a 5 wt % aqueous solution and a Hammett function H.sub.0>?12, at least on its surface.

ATO infrared absorbing fine particles having high coloring property (high light absorption property) which has both excellent dispersibility and solar radiation shielding properties and can reduce a use amount of ATO infrared ray absorbing fine particles can be provided, wherein crystal lattice constant a is 4.736 or more and 4.743 or less, crystal lattice constant c is 3.187 or more and 3.192 or less, and a crystallite size is 5.5 nm or more and 10.0 nm or less, which are analyzed by an X-ray diffraction measurement result.

ATO infrared absorbing fine particles having high coloring property (high light absorption property) which has both excellent dispersibility and solar radiation shielding properties and can reduce a use amount of ATO infrared ray absorbing fine particles can be provided, wherein crystal lattice constant a is 4.736 or more and 4.743 or less, crystal lattice constant c is 3.187 or more and 3.192 or less, and a crystallite size is 5.5 nm or more and 10.0 nm or less, which are analyzed by an X-ray diffraction measurement result.

Provided is a method for producing metal chalcogenide nanomaterials, comprising the steps of forming an aqueous solution of a chalcogen precursor, a reducing agent and a metal salt; mixing the aqueous solution for a duration of time at a reaction temperature of between about 10 C. to about 40 C., inclusively; and separating the produced metal chalcogenide nanomaterials from the aqueous solution. Also provided is a method of converting metal chalcogenide nanoparticles into metal chalcogenide nanotubes or nanosheets, comprising the steps of forming an aqueous mixture of a chalcogen precursor, a reducing agent and the metal chalcogenide nanoparticles in water; and forming the nanotubes or nanosheets by stirring or not stirring the aqueous mixture, respectively.

This invention relates to a process for synthesizing InSb nanoparticles, a method to stabilize them, and a method to provide a photodetector to detect infrared light.

In at least one embodiment, a rechargeable battery is provided comprising an anode having an active material including MSb.sub.2O.sub.4 having a purity level of greater than 93 percent by weight, wherein M is a metal. The metal may have an oxidation state of 2+ and may include transition metals and/or alkali-earth metals. The anode active material may be synthesized using metal acetates or metal oxides. The synthesis may include heating at a first temperature to remove oxygen and water and reacting at a second temperature to form the MSb.sub.2O.sub.4 structure, which may be a spinel crystal structure.