Abstract:
A high dielectric polymer composite having a high dielectric constant is disclosed herein. The high dielectric polymer composite includes a conductive material doped with oxidizable metal nanoparticles or metal oxide nanoparticles to decrease dielectric loss, and a surfactant having a head portion containing an acidic functional group to form a passivation layer that surrounds the conductive material, resulting in increased dielectric constant.
Abstract:
An organic electrolytic solution for a lithium-sulfur battery that can improve discharge capacity and cycle life of the battery, and a lithium-sulfur battery using the organic electrolytic solution are provided. The electrolytic solution includes a lithium salt, an organic solvent, and further a phosphine sulfide-based compound represented by formula (I) below: wherein R1, R2 and R3 are the same or different from each other, and each represents one selected from the group consisting of a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C1-C30 alkoxy group and a substituted or unsubstituted C8-C30 aralkenyl group. The electrolytic solution including the phosphine sulfide-based compound represented by Formula (I) can suppress production of lithium sulfides so that a reduction in battery capacity can be prevented.
Abstract:
A phase change material, a PRAM including the same, and methods of manufacturing and operating the same are provided. Insulating impurities may be uniformly distributed over an entire or partial region of the phase change material. The PRAM may include a phase change layer including the phase change material. The insulating impurity content of the phase change material may be 0.1 to 10% (inclusive) the volume of the phase change material. The insulating impurity content of the phase change material may be adjusted by controlling the power applied to a target including the insulating impurities.
Abstract:
A PRAM and a fabricating method thereof are provided. The PRAM includes a transistor and a data storage capability. The data storage capability is connected to the transistor. The data storage includes a top electrode, a bottom electrode, and a porous PCM layer. The porous PCM layer is interposed between the top electrode and the bottom electrode.
Abstract:
The present invention is related to a lithium anode, a method of the manufacturing the same and a battery using the anode. The lithium anode comprises a metal layer (or alloy layer) that is inert to lithium and a metal layer (or alloy layer) that is reactive with lithium. The two layers may form a temporary protective layer on the lithium surface, thus providing a smooth surface. By obtaining the smooth surface, an upper polymer layer and an inorganic layer may be deposited without any difficulty and the adhesive force may be strong. Thus, the lithium anode according to the present invention has superior cycling characteristics and improved storage characteristics.
Abstract:
A negative electrode of a rechargeable lithium battery includes a current collector, a negative active material layer on one side of the current collector, a protection layer on the negative active material and a releasing layer on the other side of the current collector, or on the protection layer.
Abstract:
A method of preparing a metal-doped oxide, the method including: preparing a precursor solution including a zirconium precursor or cerium precursor, a dopant metal precursor, a solvent, and a chloride salt; and heat-treating the precursor solution to prepare the metal-doped oxide.Also an oxide including: a metal-doped zirconia or metal-doped ceria; and chlorine.
Abstract:
A thermoelectric material including: a bismuth-tellurium (Bi—Te)-based thermoelectric material matrix; and a nano-metal component distributed in the Bi—Te-based thermoelectric material matrix, wherein a Lotgering degree of orientation in a c-axis direction is about 0.9 to about 1.
Abstract:
A nanocomposite thermoelectric material, a thermoelectric element including the nanocomposite thermoelectric material, and a thermoelectric module including the thermoelectric element are disclosed herein. The nanocomposite thermoelectric material includes highly electrically conductive nano metallic particles that are uniformly dispersed in a thermoelectric material matrix. Thus, the nanocomposite thermoelectric material has high thermoelectric performance, and thus, may be used in a wide range of thermoelectric elements and thermoelectric modules.