A solid state electrolyte material including a decontaminated lithium conducting ceramic oxide material including a decontaminated surface thickness. The decontaminated surface thickness is less than or equal to 5 nm. The decontaminated surface thickness may be greater than or equal to 1 nm. The decontaminated lithium conducting ceramic oxide material may be selected from the group consisting of Li.sub.7La.sub.3Zr.sub.2O.sub.12 (LLZO), Li.sub.5La.sub.3Ta.sub.2O.sub.12 (LLTO), Li.sub.6La.sub.2CaTa.sub.2O.sub.12 (LLCTO), Li.sub.6La.sub.2ANb.sub.2O.sub.12 (A is Ca or Sr), Li.sub.1+xAl.sub.xGe.sub.2-x(PO.sub.4).sub.3 (LAGP), Li.sub.14Al.sub.0.4(Ge.sub.2-xTi.sub.x).sub.1.6(PO.sub.4).sub.3 (LAGTP), perovskite Li.sub.3xLa.sub.2/3-xTiO.sub.3 (LLTO), Li.sub.0.8La.sub.0.6Zr.sub.2(PO.sub.4).sub.3 (LLZP), Li.sub.1+xTi.sub.2-xAl.sub.x(PO.sub.4).sub.3 (LTAP), Li.sub.1+x+yTi.sub.2-xAl.sub.xSi.sub.y(PO.sub.4).sub.3-y (LTASP), LiTi.sub.xZr.sub.2-x(PO.sub.4).sub.3 (LTZP), Li.sub.2Nd.sub.3TeSbO.sub.12 and mixtures thereof.

A solid state electrolyte material including a decontaminated lithium conducting ceramic oxide material including a decontaminated surface thickness. The decontaminated surface thickness is less than or equal to 5 nm. The decontaminated surface thickness may be greater than or equal to 1 nm. The decontaminated lithium conducting ceramic oxide material may be selected from the group consisting of Li.sub.7La.sub.3Zr.sub.2O.sub.12 (LLZO), Li.sub.5La.sub.3Ta.sub.2O.sub.12 (LLTO), Li.sub.6La.sub.2CaTa.sub.2O.sub.12 (LLCTO), Li.sub.6La.sub.2ANb.sub.2O.sub.12 (A is Ca or Sr), Li.sub.1+xAl.sub.xGe.sub.2-x(PO.sub.4).sub.3 (LAGP), Li.sub.14Al.sub.0.4(Ge.sub.2-xTi.sub.x).sub.1.6(PO.sub.4).sub.3 (LAGTP), perovskite Li.sub.3xLa.sub.2/3-xTiO.sub.3 (LLTO), Li.sub.0.8La.sub.0.6Zr.sub.2(PO.sub.4).sub.3 (LLZP), Li.sub.1+xTi.sub.2-xAl.sub.x(PO.sub.4).sub.3 (LTAP), Li.sub.1+x+yTi.sub.2-xAl.sub.xSi.sub.y(PO.sub.4).sub.3-y (LTASP), LiTi.sub.xZr.sub.2-x(PO.sub.4).sub.3 (LTZP), Li.sub.2Nd.sub.3TeSbO.sub.12 and mixtures thereof.

A method for producing silicon-containing oxide-coated aluminum nitride particles including aluminum nitride particles and a silicon-containing oxide coating covering a surface of each of the aluminum nitride particles. The method includes a first step including mixing aluminum nitride particles and an organic silicone compound solution in which an organic silicone compound containing a specific structure is dissolved in a solvent to form a mixture and then heating the mixture to remove the solvent and to obtain aluminum nitride particles coated with the organic silicone compound; and a second step including heating the aluminum nitride particles coated with the organic silicone compound at a temperature of 300° C. or more and 1,000° C. or less.

A method for producing silicon-containing oxide-coated aluminum nitride particles including aluminum nitride particles and a silicon-containing oxide coating covering a surface of each of the aluminum nitride particles. The method includes a first step including mixing aluminum nitride particles and an organic silicone compound solution in which an organic silicone compound containing a specific structure is dissolved in a solvent to form a mixture and then heating the mixture to remove the solvent and to obtain aluminum nitride particles coated with the organic silicone compound; and a second step including heating the aluminum nitride particles coated with the organic silicone compound at a temperature of 300° C. or more and 1,000° C. or less.

A ceramic matrix composite (CMC) component includes at least one seal surface, the at least one seal surface disposed adjacent an interfacing surface for providing a seal therebetween; and a coating disposed on the seal surface. The coating includes an aluminum oxide and/or a silicon dioxide.

Silicon-carbon composite materials and related processes are disclosed that overcome the challenges for providing amorphous nano-sized silicon entrained within porous carbon. Compared to other, inferior materials and processes described in the prior art, the materials and processes disclosed herein find superior utility in various applications, including energy storage devices such as lithium ion batteries.

Silicon-carbon composite materials and related processes are disclosed that overcome the challenges for providing amorphous nano-sized silicon entrained within porous carbon. Compared to other, inferior materials and processes described in the prior art, the materials and processes disclosed herein find superior utility in various applications, including energy storage devices such as lithium ion batteries.

The present disclosure relates to a ceramic-carbon composite including a ceramic shell surrounding a hollow portion; and a carbon coating layer surrounding the ceramic shell, wherein the hollow portion is in a vacuum state, an electrode including the ceramic-carbon composite, and a secondary battery including the electrode. The ceramic-carbon composite of the present disclosure has excellent thermal barrier effect and electrical conductivity, and thus, when used in the electrode, non-ideal heat transfer between an electrode active material and an electrode current collector is blocked to prevent a thermal runaway phenomenon, to have an effect that can significantly improve safety of the secondary battery.

The present disclosure relates to a ceramic-carbon composite including a ceramic shell surrounding a hollow portion; and a carbon coating layer surrounding the ceramic shell, wherein the hollow portion is in a vacuum state, an electrode including the ceramic-carbon composite, and a secondary battery including the electrode. The ceramic-carbon composite of the present disclosure has excellent thermal barrier effect and electrical conductivity, and thus, when used in the electrode, non-ideal heat transfer between an electrode active material and an electrode current collector is blocked to prevent a thermal runaway phenomenon, to have an effect that can significantly improve safety of the secondary battery.

Fiber tows including a heat-activatable sizing are described. The sizing compositions have a first modulus at 25° C. of at least 150 megapascals (MPa) and no greater than 400 MPa; and a second modulus of 100,000 pascals (Pa) at a temperature of no greater than 160° C. Methods of preparing articles from such sized fiber tows and the articles comprising such sized fiber tows, including unidirectional and bidirectional constructions are also described.