120results about How to "Lower impedance" patented technology

The present invention is generally related to electrolytes containing anion receptor additives to enhance the power capability of lithium-ion batteries. The anion receptor of the present invention is a Lewis acid that can help to dissolve LiF in the passivation films of lithium-ion batteries. Accordingly, one aspect the invention provides electrolytes comprising a lithium salt; a polar aprotic solvent; and an anion receptor additive; and wherein the electrolyte solution is substantially non-aqueous. Further there are provided electrochemical devices employing the electrolyte and methods of making the electrolyte.

The invention relates to systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.

It is difficult that the impedance of the circuit part on the output side of an amplifying element at the frequency of a modulating wave is lower, and consequently, it is difficult to more effectively use the linearity of the amplifying element. The phase of a signal of the frequency of the modulating wave included in an amplified signal output from a FET is inverted by a difference frequency inverting circuit. The inverted signal of the frequency of the modulating wave and a signal of the frequency of a modulated wave included in an amplified signal output from a FET cancel each other out at the drain of the FET. At the drain end of the FET, the signal of the frequency of the modulating wave included in the amplified signal of the FET and a signal of the frequency of the modulating wave output from the FET cancel each other out.

A multilayer capacitor has a laminate body in which a first internal electrode and a second internal electrode are alternately laminated with a dielectric layer in between, a first terminal electrode provided on one end side of the laminate body, and a second terminal electrode provided on the other end side of the laminate body. The first internal electrode has a first lead portion connected to the first terminal electrode. The second internal electrode has a second lead portion connected to the second terminal electrode. The first internal electrode consists of plural types of first internal electrodes and the plural types of first internal electrodes have their respective first lead portions at different positions. Distances between the first lead portions of the respective types of the first internal electrodes and the second lead portion are different from each other.

The invention belongs to the technical field of display and in particular relates to a thin film transistor and a preparation method thereof, an array substrate and a preparation method thereof and a display device. The thin film transistor comprises a grid, a source, a drain, an active layer and a grid insulating layer, wherein the grid insulating layer is arranged above the active layer, the grid, the source and the drain are arranged on the same layer above the grid insulating layer, the active layer is connected with the source through a first connecting electrode, and the active layer is connected with the drain through a second connecting electrode. The thin film transistor and the array substrate comprising the thin film transistor can be formed by only adopting a three-time layout process, the process time is greatly shortened, the process yield is improved and the process cost is reduced.

The invention belongs to the technical field of lithium ion batteries, and especially relates to a low temperature lithium ion battery. The low temperature lithium ion battery comprises a positive plate, a negative plate, a diaphragm and an electrolyte; the positive active material of the positive plate is ternary material-doped lithium manganate, and the surface of the above ternary material is coated with a fast ion conductor; the negative active material of the negative plate is graphite or amorphous carbon-coated graphite; and the electrolyte comprises a lithium salt, a solvent and an additive, the lithium salt is a mixture containing at least two of LiPF6, LiBOB, LiODFB, LiFSI, LiTFSI and LiPO2F2, and the solubility of the lithium salt is 1.0-1.5 mol/L. The comprehensive optimization of the material system of the positive plate, the negative plate and the electrolyte and the cell structure of the battery reduces the interface impedance of the battery at a low temperature, and improves the initial discharge voltage of the battery in an ultralow temperature environment, so the battery can normally work under -40 DEG C ultralow temperature and large rate conditions.

There is disclosed a current balancing circuit for use in a switching power supply unit that operates in parallel with one or more other switching power supply units with current balancing terminals connected to each other. The current balancing circuit comprises a first resistor that receives a detection signal of the output current input via a diode and outputs an output current detection voltage; a second resistor connected between the current balancing terminal and a connection point between the first resistor and the diode; an operational amplifier that outputs a signal corresponding to the different between the output current detection voltages; and a switching circuit.

The invention discloses a non-aqueous electrolyte of a high-nickel ternary lithium ion battery and a high-nickel ternary lithium ion battery containing the electrolyte, which relates to the technicalfield of lithium ion batteries. The high nickel ternary lithium ion battery electrolyte comprises an electrolyte lithium salt, a non-aqueous organic solvent and a film forming additive. The film forming additive comprises vinyl sulfate and a phosphate ester compound having a structure of formula (I), optionally further comprising a conventional negative electrode film forming additive. The phosphate ester additive can form a protective film on the surface of the positive electrode material, thereby avoiding the generation of cracks in the NCM particles during the circulation process, reducingthe dissolution of transition metal elements at high temperature, and improving the normal temperature circulation performance, high temperature circulation performance and high temperature storage performance of the battery.

The invention provides a projection-type capacitive touch panel, which comprises a transparent substrate, a first conductive layer arranged on a surface of the transparent substrate, a first insulation layer which is provided with a plurality of first through holes, a second conductive layer arranged on the first insulation layer, a second insulation layer which covers the second conductive layer and is provided with a plurality of second through holes, and a third conductive layer, wherein a first sensor of the second conductive layer is electrically coupled to the first conductive layer through the first through holes; a pattern of the first conductive layer or the second conductive layer is the same as and overlapped with a pattern of the third conductive layer; and the third conductive layer is electrically coupled to the first conductive layer and the second conductive layer through the first through holes and the second through holes. By the projection-type capacitive touch panel, the third conductive layer is electrically coupled to the first conductive layer and the second conductive layer through the through holes in the first conductive layer and the second conductive layer; the impedance can be effectively reduced in a manner that a plurality of conductive layers are connected in parallel with one another; the number of resistive and capacitive (RC) loads is prevented from being increased; and a phenomenon that the touch sensitivity of a large-size touch panel is reduced because of the RC loads is avoided.

The invention provides an antenna comprising a first magnetic shielding layer, a second magnetic shielding layer which is arranged under the first magnetic shielding layer, a first coil and a second coil which are arranged under the second magnetic shielding layer, and a flexible printed circuit board which is connected with the first coil and the second coil. The first coil comprises an annular adhesion belt and a silver-plated pattern on the adhesion belt; the second coil is arranged in the center portion of the adhesion belt; and the second coil is provided with a gap which can enable the flexible printed circuit board to be accommodated in the gap partially. Compared with the antenna in the correlation technique, the antenna provided in the invention has relatively-small thickness and impedance.

An electric connector includes an insulating device disposed into a chamber of an adaptor shell, and a receptacle engaged into the bore of the insulating device and having a compartment for receiving an electric cable and having one or more slots for forming or defining one or more blades, the blades each include two side segments and an intermediate segment disposed between the side segments and located in the compartment of the receptacle for engaging with the electric cable and for increasing a contacting area between the blade and the electric cable and for firmly coupling the in-plug electric cable to the receptacle and for decreasing the impedance between the in-plug electric cable and the receptacle and for reducing the return loss of the electric connector.

The invention discloses an in-cell touch liquid crystal panel and an array substrate thereof. The array substrate comprises a glass substrate, a first metal layer, a second metal layer, a third metal layer and a common electrode layer, wherein the first metal layer, the second metal layer, the third metal layer and the common electrode layer are formed on the glass substrate and are mutually insulated; a plurality of scanning lines are arranged in the second metal layer; a plurality of connection lines are arranged in the third metal layer; the common electrode layer is segmented into a plurality of touch induction electrodes, and the touch induction electrodes are electrically connected to a touch detection chip through the connection lines; and a plurality of metal lines are also arranged in the second metal layer, the metal lines and the scanning lines are mutually insulated, and two ends of each metal line are independently electrically connected to the connection line just above the metal line, wherein a second direction and a first direction are mutually vertical. The in-cell touch liquid crystal panel and the array substrate thereof can reduce the impendence of the connection lines of the touch induction electrodes and improve touch flexibility.

The invention discloses a functional additive for an electrolyte, a long-circulation electrolyte of a lithium ion battery and the lithium ion battery. The functional additive comprises the following constituents by weight part: 0.5-2.5 parts of vinylene carbonate, 0.5-2 parts of lithium bisoxalatoborate, 0.1-2 parts of lithium bisimide, 0.5-2 parts of ethylene sulfate and 0.5-2 parts of butane sultone. The functional additive for the electrolyte, disclosed by the invention, is formed by combining the vinylene carbonate, the lithium bisoxalatoborate, the lithium bisimide (LiFSI), the ethylene sulfate and butane sultone. When the functional additive is added to the electrolyte for use, the stability of an SEI membrane on a surface of a negative electrode is improved, the internal resistance of the SEI membrane is reduced, the SEI membrane is prevented from being damaged during the circulation process to further cause reaction of the electrolyte and the negative electrode, and thus, the cycle lifetime of the battery is prolonged.

The invention relates to a composite additive for producing an electrolytic copper foil with high bending resistance and a low outline, which belongs to the technical field of the production process of highly precise electrolytic copper foils. The composite additive for producing the electrolytic copper foil with the high bending resistance and the low outline is characterized by consisting of cellulose, glutin, thiazoline based sodium dithiopropanesulphonate and succinic acid ester sulfonate. The additive and the formula adopted by the invention have the advantages that: the tensile strength and elongation of a product at normal temperature and high temperature is improved, and the defect of low bending resistance of the electrolytic copper foil is effectively overcome; and the surface roughness of the electrolytic copper foil for high peak valve is more than or equal to 3 mu m, the transmission distance of a signal in a flexible printed circuit (FPC) is extended, attenuation and delay can be generated, so a high-frequency signal cannot be transmitted at a high speed, but the additive and the formula adopted by the invention ensure that the product has low outline property, has the rough surface roughness of less than or equal to 1.5mu m, can meet the using requirement of the FPC on a precise circuit and high-frequency high-speed transmission, and has a simple production process and lower cost.

The invention displays a display panel and a manufacturing method thereof. The display panel comprises a colored filtering substrate, a thin film transistor substrate, a light shading black matrix, a metal line, a light curing adhesive and a light shading layer, wherein the light shading black matrix is located in a non-display area of the colored filtering substrate, and seams are formed in the light shading black matrix; the metal line is located in a non-display area of the thin film transistor substrate; the light curing adhesive is located between the light shading black matrix and the metal line; the light shading layer is located on one side of the colored filtering substrate and correspond to the light shading black matrix. In this way, the frame glue curing of the display panel can be achieved, the signal delay problem of the display panel can be effectively alleviated, meanwhile, light rays can be effectively prevented from leaking out, and the display effect is improved.

The invention relates to the technical field of lithium ion batteries, and discloses non-aqueous electrolyte for ternary lithium ion batteries and a nickelic lithium ion battery comprising the electrolyte. The non-aqueous electrolyte for ternary lithium ion batteries comprises electrolyte lithium salt, a non-aqueous organic solvent and a film-forming additive, wherein the film-forming additive comprises a compound with a structure in formula (I). The additive with the structure in formula (I) is capable of forming uniform and compact protection films on the surfaces of ternary materials, so asto decrease oxidation reaction of the electrolyte on the surfaces of battery materials; the formed SEI films are stable and compact, so that the increase of AC impedance of the batteries in the cycling process is decreased and the cycling performance of the batteries is improved; and the HOMO energy of the films is slightly higher than ethylene carbonate, so that the films can be oxidized and decomposed on the surfaces of anodes in prior to ethylene carbonate, thereby inhibiting the decomposition reaction of the electrolyte solvent and playing a positive role in enhancing the cycling performance of NCM/graphite batteries at a high temperature of 45 DEG C.

A power module includes a substrate, a first sub-module and a second sub-module. Each of the first sub-module and the second sub-module includes a semiconductor switch and a diode. The first sub-module is formed as the high-voltage-side switching element. The second sub-module is formed as the low-voltage-side switching element. The plural electrodes of the high-voltage-side switching element and the plural electrodes of the low-voltage-side switching element are electrically connected with the conducting terminals of the corresponding semiconductor switches and the corresponding diodes. The high-voltage-side switching element is disposed on the substrate and electrically connected with the corresponding conducting parts of the substrate. The low-voltage-side switching element is disposed on the high-voltage-side switching element and electrically connected with the corresponding conducting parts of the substrate through the high-voltage-side switching element.

A lithium ion battery electrolyte comprise a non-aqueous organic solvent, a lithium salt and an additive, wherein that additive comprises dicyclohexylcarbodiimide, amino compound and isocyanate compounds. In the technical scheme provided by the invention, the additive of the electrolyte of the lithium ion battery comprises dicyclohexyl carbodiimide, amino compounds and isocyanates, wherein dicyclohexyl carbodiimide assists amino compounds and isocyanate compounds to participate in film formation, By forming a chain or network polymer film on the surface of the positive and negative electrodesof the lithium ion battery which is insoluble in the electrolyte and has strong oxidation resistance and good toughness, the impedance of the battery is reduced, and the high-temperature cycling performance and the rate performance of the lithium ion battery are improved.

The invention discloses an electrochemical deposition preparation method for a composite material used for microelectrode modification. The method comprises the following steps: subjecting graphene oxide (GO) to chemical reduction by using a reducing agent; then adding counter ions as a stabilizing agent for a reduced graphene oxide (rGO) solution and as counter ions for polymerization of conductive polymer monomer; and depositing the conductive polymer and graphene onto the surface of an electrode by using an electrochemical process. After polymerization, the monomer, the counter ions and rGO are deposited on the surface of the microelectrode through the action of ionic bonds. According to the invention, reduction and deposition of GO are separated, so reduction efficiency is improved and deposition is simplified; and after the biological microelectrode is modified by the composite material prepared in the invention, the alternating-current impedance of the microelectrode can be efficiently reduced, and charge storage capability of the microelectrode can be improved, so electric stimulation and electric recording performance of the biological microelectrode can be improved.

The invention relates to a display device, a display panel and a manufacturing method of the display panel, and relates to the technical field of display. The display panel includes an array substrate, a package layer, a package substrate, an auxiliary electrode and a conductive connection structure. The array substrate includes a pixel defining layer and a transparent cathode layer arranged on one side of the pixel defining layer, and the pixel defining layer defines a plurality of pixel areas. The package layer covers the cathode layer, and the package layer is provided with a through hole exposing the cathode layer. The projection of the through hole on the array substrate is located in the pixel defining layer. The package substrate and the array substrate are arranged oppositely. Theauxiliary electrode is arranged on the surface, close to the array substrate, of the package substrate, and the projection of the auxiliary electrode on the array substrate is located in the pixel defining layer. The conductive connection structure covers the auxiliary electrode, and passes through the through hole to be electrically connected with the cathode layer. The package effect of the display panel in the disclosure can be improved.

The invention provides a display panel and a display module. The display panel includes a display area, a driving chip located on one side of the display area, and a fan-out trace area connecting thedisplay area and the driving chip. The driving chip includes a first side, and two second sides vertically connected to two ends of the first side, respectively. The fan-out trace area includes a plurality of first fan-out traces connected to the first side, and a plurality of second fan-out traces respectively connected to the two second sides. According to the display panel and the display module, several signals of the driving chip are transmitted from the second sides at the two sides of the driving chip to the display area through the plurality of second fan-out traces, thereby increasingthe total width of the fan-out trace area so as to increase the width of the traces in the fan-out trace area to avoid the risk of trace breakage and reduce the impedance of the traces.

A composite conductor assembly is configured as a core composed of polymeric elastomeric material and a conductive layer in intimate surrounding contact with the core. The polymeric material provides elasticity to the core to enable the core to elongate when subjected to strain forces within a tire. The conductive layer is fabricated from a low impedance material and may be configured as a composite wherein an inner base metal is selected as a strength member and an outer metallic layer is applied to the base for electrical performance enhancement.

The invention provides a lithium bis(oxalato)borate preparation method. The preparation method comprises the steps: weighing lithium hydroxide, oxalic acid and boric acid according to a certain molarratio; then respectively drying lithium hydroxide, oxalic acid and boric acid; then putting the dried lithium hydroxide, oxalic acid and boric acid into a ball mill to be evenly ball milled to form amixture; then dry pressing the mixture into pieces under the certain pressure P; then putting into a container; reacting under the vacuum environment with a temperature as 105 to 130 DEG C for 5 to 8h; then putting into the vacuum environment with a temperature as 140 to 170 DEG C to react for 12 to 24 h to prepare a lithium bis(oxalato)borate crude product; then grinding the lithium bis(oxalato)borate crude product into powder; fully dissolving into distilled anhydrous acetonitrile; filtering to obtain filtrate; evaporating and concentrating the filtrate until the residual liquid is 1 to 2%of the total amount of the filtrate; finally, pouring the residual liquid and drying a product which is prepared by evaporating and concentrating the filtrate to obtain lithium bis(oxalato)borate. According to the method disclosed by the invention, a technology is simple, the raw materials are cheap and easy to obtain, and the purity of the prepared product is extremely high.

The invention relates to a coating and modifying method for an electrode material of a lithium ion battery. The coating and modifying method comprises the following steps of (1) dissolving alkylene borofluoride into a solvent to form a solution; (b) adding the electrode material into the solution, heating and evaporating to remove the solvent, and enabling the alkylene borofluoride to be deposited on the surface of the electrode material; and (c) carrying out thermal processing on the product obtained in the step (b) under a vacuum condition or under inert gas protection, wherein the thermal processing is carried out at a temperature of 100-300 DEG C. Therefore, inorganic components are connected and fixed through an organic framework; due to high flexibility of a polymer chain section, a certain degree of expansion and shrinkage of the electrode in the lithium intercalation/deintercalation process can be bearable; the high elasticity and flexibility of the SIE film can be ensured; the lithium consumption in the cyclic process of the electrode can be lowered; and the service life of the battery can be greatly prolonged.

A touch module comprises a touch area, a routing area and a substrate, wherein the routing area is positioned on the periphery of the touch area; a first sensing electrode and a second sensing electrode which are made of conductive materials are arranged on the substrate and correspond to the touch area; the first sensing electrode is insulated from the second sensing electrode; and a conductive signal wire is arranged on the substrate, corresponds to the routing area and comprises at least two layers of conductive structures comprising a first conductive layer and a second conductive layer which are stacked.

The invention discloses a manufacturing method of electrode foil for a surface-mounting aluminum electrolytic capacitor. The method comprises the following steps: soaking aluminum foil in a phosphoricacid solution, and applying transient large current, placing in the mixed aqueous solution to perform repeated power-up corrosion, placing the aluminum foil in the mixed solution containing sulfamicacid and citric acid, soaking in the pure water at 40 DEG C, placing the aluminum foil in an oven, performing thermal treatment at 500 DEG C, applying the required voltage in the formation liquid containing 4%-15% at 70-90 DEG C, and performing formation treatment, and finally drying. The manufacturing method disclosed by the invention has the advantages that the obtained electrode foil residual core is good in consistency, and has the advantages of being high in intensity and low in impedance; and meanwhile, the electrode foil impurity ion content can be effectively controlled to be lower than 1ppm, the electrode foil leakage current is greatly reduced, and the service life is improved. And a use requirement of the surface-mounting aluminum electrolytic capacitor is satisfied.

The invention belongs to the technical field of displaying, and discloses an array substrate and a manufacturing method thereof, and a display device. According to the manufacturing method for the array substrate, the conventional thin film transistor (TFT)-liquid crystal display (LCD) array substrate manufacturing process by taking the conventional transverse electric field or multi-dimensional electric field as a drive is improved, so that public electrode wires and grid wires are distributed on different layers; therefore, on the premise that the light transmittance is not influenced, the widths of the public electrode wires are increased, the impedance of the publish electrode wires is reduced, and the uniformity and the voltage fluctuation of voltage of public electrodes can be quickly attenuated; moreover, overlap capacitance does not exist between data wires and the public electrode wires; distances between the data wires and the transparent public electrodes are enlarged; the coupling capacitance is reduced; crosstalk of a data signal on the voltage of a public electrode network is obviously reduced; the voltage of the public electrodes is uniform and stable; and the display quality is greatly improved.

The invention discloses a lithium battery isolation membrane and a lithium battery using the same. The thickness of the isolation membrane is 15 to 30 microns, the porosity is 47 to 58 percent, the air permeability is 60 to 220S/cc, and the average aperture is 0.15 to 0.25 micron. The isolation membrane is favorable for high-amplification discharge of the lithium battery. The conventional lithium battery can achieve good high-amplification discharge effect only by adopting the isolation membrane, does not need complex process improvement, has low cost and convenient operation, and is favorable for large-scale popularization.

The invention discloses a tire pressure gauge and air faucet connecting structure which comprises a universal head, a conductive coating film, a first mating piece and an insulating fixing piece; the universal head is arranged on the tail end of the axial direction of the air faucet, and is provided with a second mating piece; the conductive coating film is fixed on an outer shell, and comprises a film body, a tongue piece which extends into the outer shell form the film body and is electrically connected with a transmission circuit in a circuit board, and a guide groove penetrated to the film body; the film body is provided with an inner concave spherical surface and an outer convex spherical surface; the universal head is universally connected with the inner concave spherical surface, and is concentric with the outer convex spherical surface; the first mating piece comprises a limiting piece; the insulating fixing piece is sleeved on the periphery of the air faucet so that the air faucet is fixed with a hub in an insulating way; the two mating pieces are mutually fixed in a matched way through the guide groove; and the signals of the transmission circuit of the tire pressure gauge are transmitted to the space sequentially through the conductive coating film, the first mating piece, the second mating piece, the universal head and the air faucet. The tire pressure gauge and air faucet connecting structure can ensure the high-efficiency and reliable transmission of the signals while ensuring the tire pressure gauge and the air faucet are stably connected and rotate flexibly, and can minimize the economic losses caused by the hitting to the tire pressure gauge.

The invention discloses a half-dry electrode for bioelectrical signal sensing. The half-dry electrode comprises a supporting base, at least one supporting leg attached to the supporting base and extending from the supporting base, an ion slow release body and sensing elements arranged at the tail end of the supporting leg. The ion slow release body contains conductive liquid and slowly releases the conductive liquid to present the half-dry surface to a subject; at least part of the ion slow release body or the conductive liquid released by the ion slow release body is in contact with the sensing elements, and thus bioelectrical signals are transmitted to the sensing elements from the subject through the ion slow release body. The half-dry electrode is reasonable in structure, convenient and comfortable to use and good in contact with the skin, electrode-skin impedance is relatively low and stable, and signal quality is good.