Abstract:
본발명의실시예에따른진동이용압전하베스팅시스템은, 이동수단의진동발생부분에고정되어외부로부터가해지는진동에의해전기에너지를생성하는압전소자; 압전소자에연결되어전기에너지를저장하는정류부; 및정류부에저장된전기에너지를휴대용기기또는이동수단에구비되는전기사용장치의전력으로공급하는전력공급부;를포함할수 있다. 본발명의실시예에따르면, 열차와같은이동수단의진동발생부분에고정되는압전소자가이동수단의운행에의해진동되어전기에너지를발생시킬수 있으며, 발생된전기에너지를통해휴대용기기와같은전기사용기기를실시간으로사용하거나충전시킬수 있다.
Abstract:
본 발명은 인지질을 이용한 금속 산화물 나노 입자의 자가 정렬 방법에 관한 것으로, 더욱 상세하게는 대면적의 기판 상에 나노 입자를 단일층 수준으로 용이하게 형성되고 형성된 나노 입자가 높은 수준으로 자가 정렬되는 금속 산화물 나노 입자의 자가 정렬 방법에 관한 것이다.
Abstract:
A multiple piezoelectric harvesting system according to the embodiment of the present invention includes: a plurality of piezoelectric bodies which include each piezoelectric element; and a hitting unit which includes a plurality of hitting members which are arranged with a phase difference to hit the piezoelectric body with a time interval. According to the embodiment of the present invention, the generation efficiency of electric energy is improved by hitting the piezoelectric bodies with the phase difference by the hitting unit including the hitting members.
Abstract:
PURPOSE: A carbon sulfur composite is provided to have improved capacity because sulfur is uniformly dispersed in a carbon ball and to have stable lifetime property because an electrode structure is not collapsed even if the sulfur is converted into a liquid phase in charging and discharging process. CONSTITUTION: A manufacturing method of a carbon sulfur composite comprises: a step of preparing a hard carbon ball; a step of mixing the hard carbon ball and sulfur; a step of dipping sulfur into the hard carbon ball by heat-treating the carbon ball and sulfur mixture at a first temperature; a step of cooling the hard carbon ball to a room temperature; a step of heat-treating the hard carbon ball at a second temperature under constant pressure. The carbon sulfur composite comprises 40-50 weight% of sulfur which is uniformly dispersed from the center part to the surface of a particle.
Abstract:
PURPOSE: A nano structure, an electricity absorbing electrode including the same, and a water processing electricity absorbing apparatus are provided to increase the absorbing speed and the absorbing capacitance of ions in the electrode by uniformly growing carbon nanotubes on the surface of silicon oxide nano-wires. CONSTITUTION: Metal nanoparticles(12) are formed on the surface of silicon oxide nano-wires(11). Carbon nanotubes are grown on the surface of the silicon oxide nano-wires using the metal nanoparticles as catalyst. The metal nanoparticles include one selected from a group platinum, gold, titanium, iron, silver, palladium, nickel, and the alloy of the same. The diameter of the metal nanoparticles is between 0.5 and 50nm.
Abstract:
PURPOSE: A magnetic recording medium including metal nano particles dispersed with high density and a fabricating method thereof are provided to control the size, density, and uniformity of the metal nano particles in a magnetic recording medium and to enable application of the fabricating method to a large substrate. CONSTITUTION: A magnetic recording medium comprises a flexible substrate(10), seeds(22), and metal nano particles(20). The seeds are formed on the flexible substrate. The metal nano particles enclose the seeds. The flexible substrate is selected from the group consisting of polyimide, silicon-based polymer, acryl-based polymer and their copolymers.