Abstract: The disclosure relates to the field of electronic materials, and in particular to a composite film of fluorinated polybenzoxazole (6FPBO) and triple-shelled mesoporous silica hollow spheres, and to its preparation and use. The composite film comprises fluorinated polybenzoxazole as a matrix and amino-functionalized triple-shelled mesoporous silica hollow spheres which are dispersed in the fluorinated polybenzoxazole matrix. A mass ratio of (amino-functionalized triple-shelled mesoporous silica hollow spheres)/(fluorinated polybenzoxazole) is 1/100 to 5/100. The composite film has excellent thermal stability and a lower dielectric constant.

Abstract: An ultra-high performance concrete (UHPC) with waste brick powder and preparation method and application thereof are provided, which relates to the technical field of concrete. The preparation method includes the following steps: stimulating activity of a brick powder by a method of mechanically stimulating activity to obtain waste brick powder; and preparing UHPC according to a mass ratio of cement to waste brick powder of 5:5-7:3 to obtain the UHPC with waste brick powder. The UHPC is prepared by treating waste bricks from construction waste (mechanically stimulating activity) to make waste brick powder with activity, therefore partially replacing cement. The UHPC is applied in a construction field.

Abstract: Disclosed herein is an all-solid-state lithium-ion electrochemical cells including: (A) a cathode including (a) particulate electrode active material according to general formula Li1+xTM1-xO2, where TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from the group consisting of Al, Mg, and Ba, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, where said electrode active material is coated with a continuous layer containing an oxide of W or Mo and where said particulate electrode active material has an average particle diameter (D50) in the range of from 2 to 20 ?m, (B) an anode, and (C) a solid electrolyte including lithium, sulphur and phosphorus.

Abstract: An ultra-high performance concrete (UHPC) with waste brick powder and preparation method and application thereof are provided, which relates to the technical field of concrete. The preparation method includes the following steps: stimulating activity of a brick powder by a method of mechanically stimulating activity to obtain waste brick powder; and preparing UHPC according to a mass ratio of cement to waste brick powder of 5:5-7:3 to obtain the UHPC with waste brick powder. The UHPC is prepared by treating waste bricks from construction waste (mechanically stimulating activity) to make waste brick powder with activity, therefore partially replacing cement. The UHPC is applied in a construction field.

Abstract: Described are a solid material which has ionic conductivity for lithium ions, a composite comprising said solid material and a cathode active material, a process for preparing said solid material, a use of said solid material as a solid electrolyte for an electrochemical cell, a solid structure selected from the group consisting of a cathode, an anode and a separator for an electrochemical cell comprising the solid material, and an electrochemical cell comprising such solid structure.

Abstract: Disclosed herein is a process for making an at least partially coated electrode active material. The process includes: (a) providing an electrode active material according to general formula Li1+xTM1?xO2, where TM includes Ni, Mn and, optionally, Co and at least one metal selected from Al, Nb, Ta, Zr, Ti and Zr, where x is between 0.05 and 0.2, and where the Ni content is at least 55 mol-% referring to TM, (b) treating said electrode active material with a metal alkyl compound, (c) treating the material obtained in step (b) with an oxidant or moisture, (d) treating the material obtained from step (c) with a compound according to formula M1OR1 where M1 is selected from the group consisting of Li, Na and K and where R1 is selected from the group consisting of isopropyl, n-butyl and tert.-butyl, and (e) repeating the sequence of steps (b) to (d) from 1-30 times.

Abstract: Described are a solid material which has ionic conductivity for lithium ions, a process for preparing said solid material, a use of said solid material as a solid electrolyte for an electrochemical cell, a solid structure selected from the group consisting of a cathode, an anode and a separator for an electrochemical cell comprising the solid material, and an electrochemical cell comprising such solid structure.

Abstract: Described are lithium transition metal halides which have ionic conductivity for lithium ions, a process for preparing them, their use as a solid electrolyte for an electrochemical cell, and electrochemical cells comprising lithium transition metal halides.

Abstract: Process for making a cathode active material for a lithium ion battery, said process comprising the following steps: (a) treating a mixed oxide according to general formula Li1+xTM1?xO2 with at least one aromatic di-, tri- or tetracarboxylic acid or with a combination of at least two of the foregoing, wherein TM is a combination of Mn and Ni and, optionally, at least one more metal selected from Ba, Al, Co, Ti, Zr, W, Fe, Cr, K, Mo, Nb, Ta, Mg and V, and x is in the range of from zero to 0.2, (b) subjecting said precursor to heat treatment a temperature in the range of from 500 to 800° C.

Abstract: Described are a solid material which has ionic conductivity for lithium ions, a composite comprising said solid material and a cathode active material, a process for preparing said solid material, a solid structure selected from the group consisting of a cathode, an anode and a separator for an electrochemical cell comprising the solid material, and an electrochemical cell comprising such solid structure.

Abstract: Described are a solid material which has ionic conductivity for lithium ions, a process for preparing said solid material, a use of said solid material as a solid electrolyte for an electrochemical cell, a solid structure selected from the group consisting of a cathode, an anode and a separator for an electrochemical cell comprising the solid material, and an electrochemical cell comprising such solid structure.

Abstract: Described are a solid material which has ionic conductivity for lithium ions, a process for preparing said solid material, a use of said solid material as a solid electrolyte for an electrochemical cell, a solid structure selected from the group consisting of a cathode, an anode and a separator for an electrochemical cell, and an electrochemical cell comprising such solid structure.

Abstract: The disclosure relates to the field of electronic materials, and in particular to a composite film of fluorinated polybenzoxazole (6FPBO) and triple-shelled mesoporous silica hollow spheres, and to its preparation and use. The composite film comprises fluorinated polybenzoxazole as a matrix and amino-functionalized triple-shelled mesoporous silica hollow spheres which are dispersed in the fluorinated polybenzoxazole matrix. A mass ratio of (amino-functionalized triple-shelled mesoporous silica hollow spheres)/(fluorinated polybenzoxazole) is 1/100 to 5/100. The composite film has excellent thermal stability and a lower dielectric constant.

Abstract: The present disclosure provides a 2-dimensional (2D) non-volatile switch (2DNS), with a vertical metal-insulator-metal (MIM) structure that includes a semiconducting monolayer crystalline non-metallic atomic sheet sandwiched between a top metal electrode and a bottom metal electrode. The 2DNS is able to perform stable non-volatile resistance switching, including both unipolar and bipolar switching, with a high ON/OFF ratio, low ON resistance, and low operating voltage. The monolayer atomic sheet may include hexagonal boron nitride (h-BN) or a transition metal dichalcogenide (TMD), such as MoS2, MoSe2, WS2, or WSe2. The present disclosure also provides methods for synthesizing a semiconducting monolayer crystalline non-metallic atomic sheet on a target substrate. The monolayer atomic sheet may include h-BN or a TMD, such as MoS2, MoSe2, WS2, or WSe2.