Abstract: The present invention relates to a method and a system for predicting the behavior of a secondary battery on the basis of a parameter measurement, and a secondary battery behavior prediction system of the present invention comprises: a parameter tester, which is connected to a secondary battery cell to be tested so as to control the operation of the secondary battery cell, and thus calculates one or more pieces of parameter information associated with the performance, heating and deterioration of the secondary battery cell from the measured data; and a data processing device for predicting behavior information about the performance, heating and deterioration of the secondary battery cell through behavior analysis based on the one or more pieces of parameter information received from the parameter tester.

Abstract: Provided is a low-temperature superconducting wire having a low stabilizing matrix ratio. The present invention provides a superconducting wire including: a low-temperature superconducting filament; a stabilizing Matrix encompassing the filament; and a sheath of a Metal-Insulator Transition (MIT) material, which encompasses the stabilizing matrix on the exterior of the stabilizing matrix. According to the present invention, a low stabilizing matrix ratio is achieved while coping with heat caused by a quench phenomenon, thereby reducing manufacturing cost and achieving a high current density.

Abstract: Provided is a low-temperature superconducting wire having a low stabilizing matrix ratio. The present invention provides a superconducting wire including: a low-temperature superconducting filament; a stabilizing Matrix encompassing the filament; and a sheath of a Metal-Insulator Transition (MIT) material, which encompasses the stabilizing matrix on the exterior of the stabilizing matrix. According to the present invention, a low stabilizing matrix ratio is achieved while coping with heat caused by a quench phenomenon, thereby reducing manufacturing cost and achieving a high current density.

Abstract: A method for manufacturing a silicon-based nanocomposite anode active material for the lithium secondary battery and the lithium secondary battery using same, comprising the following steps: a first step of mounting a silicon-based wire between two electrodes, which are placed in a methanol-based solvent atmosphere, and manufacturing a dispersion solution in which silicon-based nanoparticles are dispersed by means of high-voltage pulse discharging; and a second step of manufacturing a silicon-based nanocomposite body by compositing the silicon-based nanoparticles in the solution and a different type of material.

Abstract: A method for manufacturing a silicon-based nanocomposite anode active material for the lithium secondary battery and the lithium secondary battery using same, comprising the following steps: a first step of mounting a silicon-based wire between two electrodes, which are placed in a methanol-based solvent atmosphere, and manufacturing a dispersion solution in which silicon-based nanoparticles are dispersed by means of high-voltage pulse discharging; and a second step of manufacturing a silicon-based nanocomposite body by compositing the silicon-based nanoparticles in the solution and a different type of material.

Abstract: An anode active material for a lithium secondary battery, wherein a nitride compound containing silicon or metal such as copper, tin, germanium, indium and zinc is doped with second metal such as ferrum, cobalt, nickel and copper. To obtain the anode active material, a predetermined amount of metal nitride or silicon nitride is added to a second metal powder and then mixed uniformly. The mixture powder is filled into a container, and then a pressure is applied thereto to obtain a solid sample. The solid sample is heat-treated and pulverized into fine powder. The fine powder is heat-treated to obtain the metal nitride or the silicon nitride doped with the second metal.

Abstract: An anode active material for a lithium secondary battery, wherein a nitride compound containing silicon or metal such as copper, tin, germanium, indium and zinc is doped with second metal such as ferrum, cobalt, nickel and copper. To obtain the anode active material, a predetermined amount of metal nitride or silicon nitride is added to a second metal powder and then mixed uniformly. The mixture powder is filled into a container, and then a pressure is applied thereto to obtain a solid sample. The solid sample is heat-treated and pulverized into fine powder. The fine powder is heat-treated to obtain the metal nitride or the silicon nitride doped with the second metal.

Abstract: A method for manufacturing a high power electrode for a lithium secondary battery contemplates (a) preparing EC (ethylene carbonate) solution by dissolving EC crystals in a suitable solvent; (b) dissolving a binder in a suitable solvent to make a binder solution, and then adding and sufficiently mixing into the binder solution, an active electrode material and an electrically conductive material of a desired composition; (c) adding a predetermined amount of the EC solution prepared in the step (a) to the binder solution obtained in the step (b); (d) stirring the mixture of the EC solution and the binder solution sufficiently to make a slurry as an electrode binder to be coated on an electrode; (e) coating the slurry onto a collector; (f) sufficiently drying the coated slurry at a predetermined temperature; and (g) making a final electrode by compressing a dried electrode structure at a predetermined pressure after the coated slurry is dry.