745results about How to "Increase working voltage" patented technology

A tunable Fabry-Perot filter (8, 118, 218, 318, 418) includes substrates (10, 12) with parallel generally planar facing principal surfaces (14, 16) including spaced apart facing reflective surface regions (20, 22) that are at least partially reflective over a wavelength range and define an optical gap (Gopt) therebetween. At least one substrate of the pair of substrates is light transmissive over the selected wavelength range to enable optical coupling with the optical gap. Electrodes (24, 26) are disposed on the facing principal surfaces of the substrates. The electrodes on the facing principal surfaces of the substrates are define an electrode gap therebetween such that electrical biasing of the electrodes simultaneously modifies the optical and electrode gaps.

The energy content of supercapacitor is determined by its capacitance value and working voltage. To attain a high capacitance and a high voltage, several pieces of electrodes and separators are spirally wound with edge sealing to form a bipolar supercapacitor in cylindrical, oval or square configuration. While the winding operation effectively provides a large surface area for high capacitance, the bipolar packaging instantly imparts a unitary roll a minimum working voltage of 5V on using an organic electrolyte. The bipolar roll is a powerful building block for facilitating the assembly of supercapacitor modules. Using containers with multiple compartments, as many bipolar rolls can be connected in series, in parallel or in a combination of the two connections to fabricate integrated supercapacitors with high energy density as required by applications.

A composition having a formula LixMgyNiO2 wherein 0.9<x<1.3, 0.01<y<0.1, and 0.91<x+y<1.3 can be utilized as cathode materials in electrochemical cells. A composition having a core, having a formula LixMgyNiO2 wherein 0.9<x<1.3, 0.01<y<0.1, and 0.9<x+y<1.3, and a coating on the core, having a formula LiaCobO2 wherein 0.7<a<1.3, and 0.9<b<1.2, can also be utilized as cathode materials in electrochemical cells.

Methods are disclosed for producing highly doped semiconductor materials. Using the invention, one can achieve doping densities that exceed traditional, established carrier saturation limits without deleterious side effects. Additionally, highly doped semiconductor materials are disclosed, as well as improved electronic and optoelectronic devices / components using said materials. The innovative materials and processes enabled by the invention yield significant performance improvements and / or cost reductions for a wide variety of semiconductor-based microelectronic and optoelectronic devices / systems. Materials are grown in an anion-rich environment, which, in the preferred embodiment, are produced by moderate substrate temperatures during growth in an oxygen-poor environment. The materials exhibit fewer non-radiative recombination centers at higher doping concentrations than prior art materials, and the highly doped state of matter can exhibit a minority carrier lifetime dominated by radiative recombination at higher doping levels and higher majority carrier concentrations than achieved in prior art materials. Important applications enabled by these novel materials include high performance electronic or optoelectronic devices, which can be smaller and faster, yet still capture or emit light efficiently, and high performance electronics, such as transistors, which can be smaller and faster, yet cooler.

A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an altered phase DC-DC photovoltaic converter (8) that have outputs combined through low energy storage combiner circuitry (9). The converters can be synchronously controlled through a synchronous phase control (11) that synchronously operates switches to provide a conversion combined photovoltaic DC output (10). Converters can be provided for individual source conversion or phased operational modes, the latter presenting a combined low photovoltaic energy storage DC-DC photovoltaic converter (15) at string or individual panel levels.

Apparatus for dissociating gases includes a plasma chamber comprising a gas. A first transformer having a first magnetic core surrounds a first portion of the plasma chamber and has a first primary winding. A second transformer having a second magnetic core surrounds a second portion of the plasma chamber and has a second primary winding. A first solid state AC switching power supply including one or more switching semiconductor devices is coupled to a first voltage supply and has a first output that is coupled to the first primary winding. A second solid state AC switching power supply including one or more switching semiconductor devices is coupled to a second voltage supply and has a second output that is coupled to the second primary winding. The first solid state AC switching power supply drives a first AC current in the first primary winding. The second solid state AC switching power supply drives a second AC current in the second primary winding. The first AC current and the second AC current induce a combined AC potential inside the plasma chamber that directly forms a toroidal plasma that completes a secondary circuit of the transformer and that dissociates the gas.

The present invention facilitates semiconductor fabrication by providing methods of fabrication that selectively form high-k dielectric layers within NMOS regions. An oxide layer is formed in core and I / O regions of a semiconductor device (506). The oxide layer is removed (508) from the core region of the device. A high-k dielectric layer is formed (510) over the core and I / O regions. Then, the high-k dielectric layer is removed (512) from PMOS regions of the core and I / O regions. A silicon nitride layer is grown (516) within PMOS regions of the core and I / O regions by a low temperature thermal process. Subsequently, an oxidation process is performed (518) that oxidizes the silicon nitride into silicon oxynitride.

A vehicle tracking unit preferably includes a vehicle position determining device, a wireless communications device, a back-up battery, and a controller connected to the wireless communications device and the vehicle position determining device. The vehicle position determining device, wireless communications device and controller may define a power load of the vehicle tracking unit. The controller may isolate the back-up battery from the power load as a voltage of the vehicle battery drops until reaching a threshold. After the threshold, the controller may cause the back-up battery to selectively power only a first portion of the power load while a second portion of the power load remains powered by the vehicle battery. The selectively powered portion from the back-up battery may be the wireless communications device, for example, which may have a higher operating voltage.

A portable electric appliance (1, 23) such as a hand held hair dryer uses a brushless electric motor (13, 25) in combination with a secondary fan assembly (14) and / or an air scoop (24) to redirect air toward the motor (13, 25), to maintain a cool operating temperature. The appliance includes a control circuit (50, 80, 94, 102, 110) for controlling the brushless motor (13, 25) and other appliance features. The control circuit and the coil windings (21) of the brushless electric motor are designed to run the appliance at a relatively low current to accommodate a higher operating voltage, thereby operating at a low wattage for reducing extraneous or waste heat. This facilitates placement of the control circuit in a small, portable appliance, and may enhance operation of the appliance in certain modes such as a hair dryer “cool shot.”

The invention discloses a high-voltage cathode material for a lithium ion battery. The high-voltage cathode material is a clad material, the core material has the general formula of [LiaNibCocMdO2]; the shell material has the general formula of [LipNixCoyMnzO2]; the cathode material of the lithium ion secondary battery has the general formula of[LiaNibCocMdO2] [LipNixCoyMnzO2]; the content of the core material is 50-99.5wt%, the content of the shell material is 0.05-50wt%. The preparation method comprises the steps of preparing the core material; preparing the precursor [NixCoyMnz (OH)2] of the shell material; cladding; and carrying out sintering twice or many times. According to high-voltage cathode material disclosed by the invention, advantages of Ni and Co elements can be given a full play, the high-voltage cathode material has the advantages of high operation voltage and high energy density as well as excellent high-temperature cycle performance and the dissolution amount of Co can be controlled well.

A data processing unit having a field of clocked logic cells (PAEs) which is operable in different configuration states and a clock preselecting means for preselecting logic cell clocking. The clock preselecting means is designed in such a way that, depending on the state, a first clock is preselected at least at a first cell (PAE) and an additional clock is preselected at least at an additional cell.

The invention discloses a sodion secondary battery negative electrode material and a preparing method and application thereof. The material is an amorphous carbon material and obtained by carrying out pyrolysis on coal as a main raw material. The coal and a hard carbon precursor serve as raw materials and are mechanically mixed after solvent is added, dried, and subjected to crosslinking, solidifying and splitting in inert atmosphere to prepare the material. Or the coal serves as the main raw material and is split in inert atmosphere to prepare the material. A sodion secondary battery adopting the material as the negative electrode material has low cost and high work voltage and is stable in circulation and high in safety.

Since a first layer (a carbon layer 2a) whose chief ingredient is carbon and a second layer (Li absorbing layer 3a) containing particles having a theoretical capacity greater than that of graphite are formed on anode collector 1a, high capacity and high operation voltage can be realized. Since a element having a theoretical capacity equal to or less than that of graphite is added to the particles constituting this second layer, expansion and contraction of volume according to the charge and discharge are suppressed. This enables capacity deterioration to be suppressed even though cycles go on.

A method of manufacturing a non-volatile memory is provided. A substrate is provided and then a plurality of stacked gate structures is formed on the substrate. Each stacked gate structure includes a tunneling dielectric layer, a floating gate, a first inter-gate dielectric layer, a control gate and a cap layer. A source region is formed in the substrate and then a second inter-gate dielectric layer is formed over the substrate. A plurality of polysilicon select gates is formed on one side of the stacked gate structures. The select gates connect the stacked gate structures together to form a memory cell column. A spacer is formed on each sidewall of the memory cell column. A drain region is formed in the substrate on one side of the memory cell column. A silicidation process is carried out to convert the polysilicon constituting the select gate into silicide material.

A process for separating organic and inorganic particles from a dry mixture by sizing the particles into isolated fractions, contacting the sized particles to a charged substrate and subjecting the charged particles to an electric field to separate the particles.

It is to provide a positive electrode active material for a lithium secondary battery, which has a large volume capacity density and high safety, is excellent in uniform coating properties and is excellent in the charge and discharge cyclic durability and low temperature characteristics even at a high charge voltage. A process for producing a lithium-containing composite oxide represented by the formula LipQqNxMyOzFa (wherein Q is at least one element selected from the group consisting of titanium, zirconium, niobium and tantalum, N is at least one element selected from the group consisting of Co, Mn and Ni, M is at least one element selected from the group consisting of Al, alkaline earth metal elements and transition metal elements other than the Q element and the N element, 0.9≦p≦1.1, 0<q≦0.03, 0.97≦x<1.00, 0≦y<0.03, 1.9≦z≦2.1, q+x+y=1 and 0≦a≦0.02) from a lithium source, an Q element source and an N element source, and if necessary, at least one source selected from the group consisting of an M element source and a fluorine source, characterized by using as the Q element source an Q element compound aqueous solution having a pH of from 0.5 to 11.

Methods are disclosed for producing highly doped semiconductor materials. Using the invention, one can achieve doping densities that exceed traditional, established carrier saturation limits without deleterious side effects. Additionally, highly doped semiconductor materials are disclosed, as well as improved electronic and optoelectronic devices / components using said materials. The innovative materials and processes enabled by the invention yield significant performance improvements and / or cost reductions for a wide variety of semiconductor-based microelectronic and optoelectronic devices / systems.Materials are grown in an anion-rich environment, which, in the preferred embodiment, are produced by moderate substrate temperatures during growth in an oxygen-poor environment. The materials exhibit fewer non-radiative recombination centers at higher doping concentrations than prior art materials, and the highly doped state of matter can exhibit a minority carrier lifetime dominated by radiative recombination at higher doping levels and higher majority carrier concentrations than achieved in prior art materials. Important applications enabled by these novel materials include high performance electronic or optoelectronic devices, which can be smaller and faster, yet still capture or emit light efficiently, and high performance electronics, such as transistors, which can be smaller and faster, yet cooler.

An energy storage device comprises a capacitor having a dielectric between opposite electrodes and a nonconductive coating between at least one electrode and the dielectric. The nonconductive coating allows for much higher voltages to be employed than in traditional EDLCs, which significantly increases energy stored in the capacitor. Viscosity of the dielectric material may be increased or decreased in a controlled manner, such as in response to an applied external stimulus, to control discharge and storage for extended periods of time.

The invention discloses a transition metal composite oxide catalytic material and a microwave preparation method thereof, can output larger working voltage under higher current density, and has simple preparation method, easily controlled preparation process and rich raw material resources. The preparation method comprises the following steps: taking the nitrates of two transition metals according to the stoichiometric ratio of two metal elements, adding distilled water to prepare a solution, adding carbon black, stirring for reaction, and centrifuging to obtain the precipitate; washing the precipitate; drying at 50-80 DEG C and pulverizing to obtain a precursor, wherein the mass ratio of the transition metal composite oxide to the carbon black is 6:4, the A transition metal is one of Co, Mn, Fe and Ni, and the B transition metal is one of Co, Mn and Fe; and calcining the precursor by microwave to obtain the transition metal composite oxide catalytic material. The microwave calcining method of the invention has simple process and high efficiency, and the prepared spinel has a nano crystal form, small particle size and even distribution.

A positive electrode material that contains sulfur of high capacitance density as an active material without containing any large amount of conduction aid, namely, a positive electrode material for a battery of high energy density. There is provided a battery positive electrode material comprising a composite of conductive substance and sulfur and / or a sulfur compound having S—S bond, wherein there is disposed a composite microparticle layer having microparticles of conductive material cut into particles of sulfur and / or a sulfur compound having S—S bond. Further, there is provided a process for producing a battery positive electrode material, comprising conducting mechanofusion between particles of sulfur and / or above-mentioned sulfur compound as a raw material and microparticles of conductive material so as to obtain a composite material having a composite microparticle layer wherein the above microparticles are cut into the above particles.

Apparatus for dissociating gases includes a plasma chamber comprising a gas. A first transformer having a first magnetic core surrounds a first portion of the plasma chamber and has a first primary winding. A second transformer having a second magnetic core surrounds a second portion of the plasma chamber and has a second primary winding. A first solid state AC switching power supply including one or more switching semiconductor devices is coupled to a first voltage supply and has a first output that is coupled to the first primary winding. A second solid state AC switching power supply including one or more switching semiconductor devices is coupled to a second voltage supply and has a second output that is coupled to the second primary winding. The first solid state AC switching power supply drives a first AC current in the first primary winding. The second solid state AC switching power supply drives a second AC current in the second primary winding. The first AC current and the second AC current induce a combined AC potential inside the plasma chamber that directly forms a toroidal plasma that completes a secondary circuit of the transformer and that dissociates the gas.

Organic light-emitting diode with a layer arrangement which comprises an electrode, a counter electrode and an organic layer sequence arranged between the electrode and the counter electrode, where the organic layer sequence is arranged on a metal substrate and one or several organic transport layers containing in each case an admixture for increasing the electric conductivity and which are formed with at least one of the features from the following group of features: charge carrier transporting and charge carrier injecting.

An energy storage device comprises a capacitor having a dielectric between opposite electrodes and a nonconductive coating between at least one electrode and the dielectric. The nonconductive coating allows for much higher voltages to be employed than in traditional EDLCs, which significantly increases energy stored in the capacitor. Viscosity of the dielectric material may be increased or decreased in a controlled manner, such as in response to an applied external stimulus, to control discharge and storage for extended periods of time.

The invention discloses a Na3MnTi(PO4)3 / C composite material, a preparation method and an application thereof in a sodium-ion battery. The composite material is composed of carbon coated Na3MnTi(PO4)3 particles. The preparation method comprises the following steps: utilizing an organic matter as a reducing agent and a carbon source, taking low-cost manganese source and titanium source as raw materials and adopting a solid phase method for synthesizing a carbon coated Na3MnTi(PO4)3 composite anode material with an excellent performance. The preparation method is simple and practicable, the condition is mild and the yield is high. When the prepared composite material is used as an anode material of the sodium-ion battery, the anode material shows high energy density, high working voltage, excellent circulatory stability and excellent rate capability.

The invention discloses a flat panel display, which comprises a plurality of pixel electrodes, a first multiplexer, a second multiplexer, a third multiplexer and a gate driver. The gate driver is electronically connected with the pixel electrode, and provided with N plus 1 shift registers. The nth shift register comprises an SR trigger, a first transistor and a second transistor. When the flat panel display is turned off, a turning-off control signal is converted from a high potential voltage to a low potential voltage, so as to switch an input low power supply voltage outputted from the first multiplexer to a high operating voltage, switch a zeroth input time pulse signal outputted from the second multiplexer to a high operating voltage and switch a first input time pulse signal outputted from the third multiplexer to a high operating voltage, thereby resulting in conduction of the first transistor or the second transistor, and the nth output signal outputs the high operating voltage to allow the pixel electrodes to take discharge action. By using the turning-off control signal, all pixel electrodes can take discharge action, so as to eliminate afterimage during the turning-off.

The invention provides a novel titanate capable of being used as a lithium ion secondary battery cathode active material. The general formula of the active material is Li2+xSrmM1-mTi5+nN1-nO14-y, wherein M is one or the combination selected from Al, Ba, Ca, Ce, Cs, La, Mg, K, Na, Sr, Mn and Sn, N is one or the combination selected from Mn, Ti, Co, Zr and V, x is greater than or equal to 0 and is less than or equal to 0.5, m is greater than or equal to 0 and is less than or equal to 1, n is greater than or equal to 0 and less than or equal to 1, and y is greater than or equal to 0 and is less than or equal to 1. The Li+ / Li operating voltage from the material is 0.8-1.45V, and the metal Li potential is low compared with a lithium titanate material; when the novel titanate is paired with lithium manganate or cobalt acid lithium, the operation voltage higher than that of a battery taking lithium titanate as a negative electrode is obtained, and the safety problem of battery short circuit due to formation of lithium dendrites caused by separation of lithium metal is solved.

Provided are a cathode active material with high safety, with high discharge capacity even at high operating voltage, and with excellent cyclic charge and discharge properties, its production method and a non-aqueous electrolyte secondary battery containing the cathode active material.The cathode active material for a non-aqueous electrolyte secondary battery comprises a surface-modified lithium-containing composite oxide particle, wherein the particle is a lithium-containing composite oxide particle represented by the general formula LipNxO2 (wherein N═NiyM1-y-zLz, M contains at least one element selected from Co and Mn, L is an element selected from alkaline earth metal elements, aluminum and transition metal elements other than Ni, Co and Mn, 0.9≦p≦1.1, 0.9≦x<1.1, 0.2≦y≦0.9, and 0≦z≦0.3), and a surface layer of the particle contains aluminum, said surface layer within 5 nm having an aluminum content of at least 0.8 as an atomic ratio to a total of Ni and the element M.

The invention discloses a composite positive electrode material for a sodium-ion battery and a preparation method of the composite positive electrode material. An Na<2>Fe<1-x>Ni<x>P<2>O<7> precursor grows in a graphene oxide (GO) solution by a coprecipitation method in situ; and graphene oxide is reduced when Na<2>Fe<1-x>Ni<x>P<2>O<7> nanoparticles are obtained in a calcining manner, thereby obtaining a vegetable sponge-shaped Na<2>Fe<1-x>Ni<x>P<2>O<7> / reduced graphene oxide nanocomposite material. The synthesis method is simple; the conditions are mild; and the yield is high. In the prepared composite material, active materials are dispersed uniformly; and the composite positive electrode material has high specific capacity, high working voltage, good cycling stability and excellent rate capability when used as a sodium-ion positive electrode material.

The related mixed super capacitor comprises: using Ta and RuO2 as the anode and cathode respective; filling H2SO4 electrolyte to form the electrolytic capacitor with anode and the electrochemical capacitor with cathode in series, respectively. This invention increases working voltage and energy storage density, overcomes defects in prior art, and can be used in the impulse power system.

The invention discloses a nickel-based positive active material of a lithium ion secondary battery. The nickel-based positive active material is subjected to wrapping treatment and is prepared from the following components in percentage by weight: 50%-99.5 percent of nickel-based material as a matrix and 0.05-50 percent of shell material. A general formula of the lithium ion secondary battery can be expressed as [Li(p)Ni(x)Co(y)Mn(z)O2][Li(q)Ni(a)Co(b)Mn(c)O2]. A preparation method of the nickel-based positive active material comprises the steps of preparing a precursor of the positive material of the lithium ion secondary battery; and preparing the positive material of the lithium ion secondary battery. According to the invention, as the gradient variation of nickel concentration between the matrix material and the shell material is realized by virtue of wrapping, the nickel-based positive active material has good electrochemical performance of high gram volume, high working voltage, good cycle performance and the like, and the safety and the machinability of the material are also ensured. In addition, the preparation method is high in the operability, is favorable for industrial production and has high application value.