55results about How to "Increase operating voltage" patented technology

Disclosed is a positive electrode active material for nonaqueous electrolyte secondary batteries which contains a complex oxide mainly containing sodium, nickel and a tetravalent metal while having a hexagonal structure. This positive electrode active material enables to obtain a nonaqueous electrolyte secondary battery with high operating voltage. The complex oxide is preferably expressed as Na[Na(1 / 3-2x / 3)Ni(x-y)M(2 / 3-x / 3-y)A2y]O2 (wherein M represents one or more tetravalent metals, A represents one or more trivalent metals, 0 < x = 0.5, 0 = y < 1 / 6, AND X > y).

A nitride semiconductor device includes a stem. A heat sink is provided on the stem. At least one nitride semiconductor light-emitting element is connected to the heat sink. A light-detecting element for detecting light from the semiconductor light-emitting element is provided on the stem. A cap for encapsulating therein the heat sink, the semiconductor light-emitting element, and the light-detecting element in a sealed manner is connected to the stem. The space in the cap has an encapsulated atmosphere. The encapsulated atmosphere contains a component for inhibiting diffusion of hydrogen atoms contained in the semiconductor light-emitting element. The present invention suppresses defect due to an increase in operation voltage to increase a ratio of good goods thereby improving the fabrication yield of the semiconductor light-emitting device.

The invention belongs to electrode materials for energy storage batteries, in particular to a positive electrode material for liquid and semi-liquid metal batteries. The positive electrode material is formed of metal Te or Te and one or more simple substances in Sn, Sb, Pb, and Bi. Te alloy. The present invention creatively uses metal Te and alloys of Te and Sn, Sb, Pb, Bi as the positive electrode material, the high electronegativity of the metal Te can provide higher voltage, the melting point is low (449°C), the preparation of the Te alloy is simple, and the cost is low. And it has good electrochemical performance with the existing negative electrode materials. When it is applied to the positive electrode materials of liquid / semi-liquid metal batteries, it can effectively solve the problems of low working voltage of liquid / semi-liquid metal batteries and high operating temperature of batteries. Improve battery operating voltage, increase energy density, reduce operating temperature, and reduce battery cost, so it is especially suitable for liquid and semi-liquid metal batteries.

A remote plasma generating device at least comprises a reaction cavity and a magnetic core. The reaction cavity is provided with a first cavity body and a second cavity body communicated with each other and is used for introducing gas and accommodating plasma, and a dielectric assembly is arranged between the first cavity body and the second cavity body. The magnetic core penetrates through the first cavity body and the second cavity body. Gas spirally moves in the first cavity body and the second cavity body along the axis of the magnetic core. The magnetic core part in the first cavity and the magnetic core part in the second cavity generate a first axial magnetic field and a second axial magnetic field, so that a first induced angular electric field and a second induced angular electricfield are generated in the first cavity body and in the second cavity body along the axis of the magnetic core. The service life of the reaction cavity can be prolonged by reducing the impact of high-temperature gas particles on the cavity and a ceramic tube.

The invention discloses a two-phase flow integrated quartz resistance furnace, which comprises a round metal cylinder body which is arranged on a rotating shaft and can rotate 180 degrees, an graphite electrode is longitudinally arranged in the round metal cylinder body, the two ends of the graphite electrode are connected with composite electrodes arranged at the two ends of the round metal cylinder body through graphite electrode sleeves, the composite electrodes are connected with a low voltage side of a furnace front transformer through cables, the peripheries of the composite electrodes are provided with furnace cover cooling water drums, the periphery of the graphite electrode is provided with water cooled jackets, the composite electrodes and the outer rings of the water cooled jackets are fixed, the cables are water cooled cables, the water cooled cables comprise copper core wires, rubber steam hoses are coated outside the copper core wires, cooling water channels are arrangedbetween the copper core wires and the rubber steam hoses, transition joints are arranged between the water cooled cables and the composite electrodes, and two-phase flow conduits of the transition joints are connected with the water cooled jackets. The two-phase flow integrated quartz resistance furnace reduces areas of the cables by more than 20 times, greatly reduces contact resistance between the electrodes at the two ends, reduces turning weight of a furnace body, greatly reduces operating accidents of equipment, and increases operating efficiency.

The invention discloses a method for improving the DC breakdown field strength of a capacitor dielectric film based on benzoin. The method comprises the following steps of: 1, fully mixing a dried polypropylene particles and benzoin were in an internal mixer at a mass ratio of 99.5:0.5 to obtain a polypropylene composite material, and, setting a control group, namely a polypropylene material without addition of benzoin ; 2, employing a flat vulcanizing machine to press the polypropylene composite material to a test sample with a side of 90*90mm and a thickness of 80 [Mu]m; 3, performing vacuum drying of the test sample for 24 hours to allow the test sample to fully exclude impurities; 4, employing a plate electrode to perform DC breakdown test for the test sample; and 5, employing the polypropylene material of the control group to repeat the steps 2-4. The experiment shows that the method can effectively improve the breakdown field strength of polypropylene film.

The invention relates to a system for layered access of 500kV / 1,000kV AC power grid to converters at a high end and a lower end of + / -1,100kV extra-high voltage DC power transmission engineering and a debugging method of the system. The system comprises converters at two ends and a DC power transmission line. The debugging method for a + / -1,100kV extra-high voltage DC power transmission engineering system comprises the steps of (a) performing calculation and analysis by a + / -1,100kV extra-high voltage DC power transmission engineering multi-feed system; and (b) compiling the debugging method for a layered access system of the + / -1,100kV extra-high voltage DC power transmission engineering. The system is characterized by comprising the following two aspects: (1) 1,100kV voltage is the highest DC voltage class at present, and with regard to a test scheme of the layered access AC system of the converters at the high end and the lower end, the impact on equipment during the test process is needed to be reduced according to performance of the DC multi-feed system and the equipment; and (2) the converters at the high end and the lower end initially employ layered access of the 500kV / 1,000kV AC power grid, and the part of test scheme is also initially compiled.