Process for synthesizing a material, the process including the steps consisting in: a) providing a plurality of powders including: at least one powder including lithium, at least one powder including, for more than 95.0% of its mass, a transition metal chosen from titanium, cobalt, manganese, nickel, niobium, tin, iron and mixtures thereof, and at least one powder including, for more than 95.0% of its mass, a chalcogen element chosen from sulfur, selenium, tellurium and mixtures thereof, b) preparing a particulate mixture by mixing all the powders of the plurality or by mixing one of the powders of the plurality with a milled material obtained by milling a particulate assembly formed by mixing at least two of the other powders of the plurality, and milling the particulate mixture to form the material.

An electrode for a secondary battery comprises a current collector; and an active material-containing layer has active materials which comprise titanium-containing composite oxide having an orthorhombic crystal structure and represented by a general formula Li.sub.2+aM1.sub.2bTi.sub.6cM2.sub.dO.sub.14+;

wherein the active material-containing layer has intensity ratio Ia/Ib in an X-ray diffraction pattern of the active material-containing layer, the Ia and the Ib are obtained by powder X-ray diffraction method using Cu-K ray, the intensity ratio is within a range of 0.5Ia/Ib2, the Ia is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 42244, and the Ib is the strongest intensity of a diffraction peak among diffraction peaks appearing within a range of 44<248.

(M1 is at least one selected from the group consisting of Sr, Ba, Ca, Mg, Na, Cs, Rb and K, M2 is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Y, Fe, Co, Cr, Mn, Ni and Al a is within a range of 0a6 b is within a range of 0b<2 c is within a range of 0c<6 d is within a range of 0d<6 is within a range of 0.50.5.)

This disclosure provides systems, methods, and apparatus related to lithium metal oxyfluorides. In one aspect, a method for manufacturing a lithium metal oxyfluoride having a general formula Li.sub.1+x(MM).sub.zO.sub.2-yF.sub.y, with 0.6z0.95, 0<y0.67, and 0.05x0.4, the lithium metal oxyfluoride having a cation-disordered rocksalt structure, includes: providing at least one lithium-based precursor; providing at least one redox-active transition metal-based precursor; providing at least one redox-inactive transition metal-based precursor; providing at least one fluorine-based precursor comprising a fluoropolymer; and mixing the at least one lithium-based precursor, the at least one redox-active transition metal-based precursor, the at least redox-inactive transition metal-based precursor, and the at least one fluorine-based precursor comprising a fluoropolymer to form a mixture.

A battery according to the present disclosure includes: a positive electrode; a negative electrode; and an electrolyte layer positioned between the positive electrode and the negative electrode. The positive electrode includes a positive electrode material. The positive electrode material includes a positive electrode active material and a first solid electrolyte material. The positive electrode active material includes an oxide consisting of Li, Ni, Mn, and O. The first solid electrolyte material includes: Li; at least one selected from the group consisting of metalloid elements and metal elements except Li; and at least one selected from the group consisting of F, Cl, and Br. The negative electrode includes Bi as a main component of a negative electrode active material.

A method of treatment of a sample of lithium titanium thiophosphate LiTi.sub.2(PS.sub.4).sub.3 including: (a) providing a solid sample of lithium titanium thiophosphate LiTi.sub.2(PS.sub.4).sub.3, (b) compressing the lithium titanium thiophosphate sample provided in step (a) to form a compressed powder layer; and (c) sintering the lithium titanium thiophosphate obtained as a compressed powder layer in step (b) at a temperature of at least 200 C. and at most 400 C.

The disclosed subject matter relates to an infrared detector including a dielectric detector membrane and a NbTiN absorber coating disposed thereon, the latter being a low stress, high resistivity film or coating useful at extremely low temperatures.

Provided is an active material that contributes to improved battery rate characteristics. This active material for nonaqueous electrolyte secondary batteries contains a core capable of reversible Li storage/release and contains a compound attached to the surface of the core. The compound is represented by the general formula M1.sub.aM2F.sub.b (0.1?a?2.2, 2?b?6, M1 is at least one element selected from the group consisting of Li, K, and Na, and M2 is at least one element selected from the group consisting of transition metals and Al, Si, B, P, Sn, Ge, Sb, Bi, Mg, Ca, and Sr).

An electrolyte is provided, which includes (a) 100 parts by weight of oxide-based solid state inorganic electrolyte, (b) 20 to 70 parts by weight of [Li(OR.sup.1).sub.n.sup.OR.sup.2]Y, wherein R.sup.1 is C.sub.1-4 alkylene group, R.sup.2 is C.sub.1-4 alkyl group, n is 2 to 100, and Y is PF.sub.6.sup., BF.sub.4.sup., AsF.sub.6.sup., SbF.sub.6.sup., ClO.sub.4.sup., AlCl.sub.4.sup., GaCl.sub.4.sup., NO.sub.3.sup., C(SO.sub.2CF.sub.3).sub.3.sup., N(SO.sub.2CF.sub.3).sub.2.sup., SCN.sup., CF.sub.3CF.sub.2SO.sub.3.sup., C.sub.6F.sub.5SO.sub.3.sup., CF.sub.3CO.sub.2.sup., SO.sub.3F.sup., B(C.sub.6H.sub.5).sub.4.sup., CF.sub.3SO.sub.3.sup., or a combination thereof, (c) 1 to 10 parts by weight of nano oxide, and (d) 1 to 20 parts by weight of binder. The electrolyte can be disposed between a positive electrode and a negative electrode to form a battery.

A compound represented by the general formula Li(Ti.sub.1-xZr.sub.x).sub.2(PS.sub.4).sub.3, wherein 0.01x0.25, 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.

A semiconductor nanocrystal particle including a transition metal chalcogenide represented by Chemical Formula 1, the semiconductor nanocrystal particle having a size of less than or equal to about 100 nanometers, and a method of producing the same:

M.sup.1M.sup.2Cha.sub.3 Chemical Formula 1 wherein M.sup.1 is Ca, Sr, Ba, or a combination thereof, M.sup.2 is Ti, Zr, Hf, or a combination thereof, and Cha is S, Se, Te, or a combination thereof.