105 results about "Active electrode" patented technology

The invention relates to the technical field of electrodes for vanadium batteries, in particular to a preparation method of a catalytically active electrode for a vanadium battery, the catalytically active electrode and application of the catalytically active electrode. The preparation method comprises the following steps: loading a bismuth oxide water-phase dispersion liquid as a precursor on the surface of a graphite felt electrode substrate, placing the graphite felt electrode in an inert atmosphere to carry out a carbon thermal reduction reaction, and carrying out a solid-phase reaction on bismuth oxide and the graphite felt carbon substrate in the inert atmosphere to generate a strongly combined catalytic active site in situ. By pertinently controlling the concentration of the bismuth oxide water-phase dispersion liquid and the temperature of the carbon thermal reduction reaction, active components in the prepared catalytic active electrode for the vanadium battery are uniformly and firmly combined on the surface of a matrix, and high uniformity and high stability are shown. And meanwhile, a loading-first and one-step carbon thermal reduction method is adopted, so that large-scale production can be realized, the electrochemical activity of the product is effectively improved, the uniformity and consistency of the performance can be realized, and the multi-dimensional strict requirements of commercial production on the electrode performance and the manufacturing efficiency are effectively met.

The utility model discloses an integrated electrode and a flow battery, the integrated electrode comprises a flow guide substrate and a reaction active electrode material wrapping the outer surface of the flow guide substrate, the reaction active electrode material is a flexible structure, the flow guide substrate comprises concave areas and convex areas which are alternately arranged, and the concave areas and the convex areas are arranged on the outer surface of the flow guide substrate. The inner side of the concave area and the back side of the convex area form an electrolyte flow channel, the electrolyte flow channel is provided with an electrolyte inlet and an electrolyte outlet which are exposed to the outer side of the reactive active electrode material, and the flow channel wall of the electrolyte flow channel is provided with a flow guide hole for guiding the electrolyte towards the reactive active electrode material; and the reaction active electrode material and the diversion substrate are relatively fixed to form an integrated structure of electrolyte circulation and electrochemical reaction. According to the scheme, efficient flowing of the electrolyte is guaranteed, a stable reaction interface is provided, concentration polarization is reduced, the battery efficiency is improved, meanwhile, the flow guide substrate is convenient to grab by a mechanical clamping jaw, and full-automatic stack assembly is supported.

Systems and methods of the various embodiments may provide bifacial sealed gas diffusion electrode (GDE) assemblies. In some embodiments, a bifacial sealed gas diffusion electrode (GDE) assembly includes active electrode layers on two opposing sides of the assembly. Various embodiments may provide architecture and / or sealing methods for GDE assemblies. In various embodiments, the GDE assemblies may be for use in devices. In various embodiments, the devices may be primary or secondary batteries. In various embodiments, these devices may be useful for energy storage. For example, bifacial sealed GDE assemblies of the various embodiments may form cathode electrodes (sometimes called air electrodes) of a battery, such as a metal-air battery.

The application discloses a kind of based on laminated CrOCl auxiliary storage's floating gate structure optoelectronic synapse device and preparation method, belong to semiconductor device technical field.Device includes by lower to upper sequentially arranged substrate, Gr nanosheet, CrOCl nanosheet, h-BN nanosheet and MoS2 Nanosheet, wherein, MoS2 Nanosheet two ends are connected with active electrode and drain electrode, Gr nanosheet, CrOCl nanosheet, h-BN nanosheet and MoS2 Nanosheet are combined by Van der Waals interaction;MoS2 / h-BN / CrOCl / Gr floating gate optoelectronic synapse device of the application can effectively increase double scanning storage window by the secondary adsorption electron capacity of CrOCl, widen multi-level storage capacity, can realize multi-level storage under the joint modulation of electric pulse and light pulse, show excellent electrical writing and optical erasing technology in photoelectric hybrid storage, in addition, under the common modulation of photoelectricity, show good synapse characteristics, including long-term plasticity, short-term plasticity, the recognition accuracy of neural network constructed by MoS2 / h-BN / CrOCl / Gr floating gate device of the application can reach 97% on direction identification data set.

The application discloses a water-soluble polymer-based proton-type memristor and a preparation method thereof. The memristor has a sandwich structure and is sequentially composed of a top electrode, an inorganic resistive switching functional layer, an organic resistive switching functional layer and a bottom electrode. The top electrode is a metal active electrode, the bottom electrode is indium tin oxide (ITO), the inorganic resistive switching functional layer is a metal oxide film, and the organic resistive switching functional layer is a doping system composed of a water-soluble polymer and a doping material. The preparation process of the proton-type memristor is reliable and stable. The obtained memristor has the characteristics of high biocompatibility and green environmental protection. The device performance consistency and environmental dependence are improved, and the simulation of bionic synaptic plasticity is greatly improved. The device can be controlled by using a low voltage, has low power consumption, and has a good bidirectional current modulation effect, so that the device provides a possibility for further enriching synaptic functions and designing flexible wearable devices.

A system for testing different regions of the retina of a subject for retinal function, said system comprising: a monitor configured to display a visual electrophysiology stimulus to the subject, wherein the visual electrophysiology stimulus comprises a four ring visual electrophysiology stimulus; at least one active electrode; at least one reference electrode; and a computer configured to receive electrical signals from said at least one active electrode and said at least one reference electrode, and process the electrical signals.

A device and method for detecting faults in a shield of an electrosurgical instrument is described. The device has a relay configured to selectively interrupt power to the electrosurgical instrument, monitoring circuitry configured to monitor a shield in the electrosurgical instrument, control circuitry to control the relay, and a battery power source. The monitoring circuitry has an envelope detector and a detected average shield current detector. The monitoring circuitry is configured to compare a shield current peak value to a shield current peak threshold value, and to compare a detected average shield current value to a detected average shield current threshold value. The device is further configured to operatively couple an active electrode of an electrosurgical instrument and a return electrode to an electrosurgical generator.

The invention is suitable for the technical field of biological feedback, and provides a non-invasive feedback method, device, equipment and program product for pelvic floor muscle training. The method comprises the steps that in the pelvic floor muscle training process of a living body, a first electromyographic signal generated by pelvic floor muscle fiber depolarization when the pelvic floor muscle of the living body contracts is obtained through an active electrode arranged on the pelvic floor muscle of the living body; and according to the first electromyographic signal, determining whether pelvic floor muscle training performed by the living body meets a preset requirement or not. According to the method, the electromyographic signal for determining whether the pelvic floor muscle training carried out by the living body meets the preset requirement or not is obtained by the active electrode arranged on the pelvic floor muscle of the living body, and the active electrode can be directly attached to the skin, so that the pelvic floor muscle training effect can be determined without using a vaginal probe; therefore, the effect of pelvic floor muscle training performed by the living body can be determined noninvasively, and the safety and comfort of pelvic floor muscle training are improved.

This invention discloses a GaN bidirectional blocking device with a polarized gate structure and its fabrication method, relating to the field of semiconductor device technology. The device includes a substrate with a thickness of 400 μm-1000 μm, a buffer layer of GaN with a thickness of 500 μm-5000 μm disposed on the substrate, a GaN channel layer disposed on the buffer layer, and an AlGaN barrier layer disposed on the GaN channel layer with a thickness of 15 nm-30 nm. An active electrode is disposed on the AlGaN barrier layer. This GaN bidirectional blocking device with a polarized gate structure and its fabrication method, based on the material structure, allows the p-GaN layer at the drain electrode and the drain metal to form a junction barrier Schottky diode structure, which can constitute a bidirectional blocking device as a whole, extending its application to more power applications. It solves the problem of how to improve the structure of traditional p-GaN gate devices to increase their forward gate withstand voltage, reduce gate leakage current, and improve the device's threshold voltage.

The invention provides a display panel, a driving method thereof and a display device. The display panel comprises a liquid crystal layer and an array substrate. A liquid crystal layer including liquid crystal molecules; the array substrate comprises an orientation layer, a first electrode and a second electrode, wherein the first electrode and the second electrode are arranged on the side, away from the liquid crystal layer, of the orientation layer. The first electrode is an electrochemical active electrode; the second electrode is used for driving liquid crystal molecules to deflect; wherein the first electrode is arranged close to the orientation layer; in response to the display panel being in a non-display state, the first electrode and the second electrode are capacitively coupled through an aqueous medium containing an electrolyte, and the first electrode is configured as a working electrode for an electrochemical reaction. The capacitive coupling of the first electrode and the second electrode can be realized through the aqueous medium containing the electrolyte in the non-display state, so that the electrochemical reaction is started to react with the organic pollutants adsorbed on the surface of the orientation layer, and the problem of residual images caused by adsorption of impurities on the surface of the orientation layer is effectively improved.

The invention discloses a process integration method of a groove type memristor, which comprises the following steps of: providing a silicon substrate, and preparing an inert electrode on the surface of the silicon substrate; depositing a layer of silicon nitride on the surface of the inert electrode; performing photoetching and etching on the silicon nitride to form a groove type SiN structure, and performing over-etching to stop to an inert electrode; preparing an electrolyte material on the surface of the silicon nitride and in the groove type SiN structure; and preparing a groove-type active electrode, wherein the groove-type active electrode is covered with an electrolyte material. Etching a groove-type active electrode and an electrolyte material by adopting an IBE process, performing over-etching until an inert electrode is reached, completing the preparation of the novel memristor, preparing the electrolyte material by adopting an ALD or PVD process to obtain an active electrode test end, and limiting the electrolyte size of the ReRAM device through a barrier layer SiN; and the inert electrode material is exposed through an IBE process to obtain an inert electrode test end. The device has the advantages of being simple in structure, compatible with the CMOS technology, high in consistency, good in durability and the like.

The invention discloses Ag / Al composite ink with conductivity, excellent printability and electrochemical activity as well as a preparation method and application of the Ag / Al composite ink, and belongs to the technical field of printed electronic functional materials. The problem that existing conductive ink is inert metal and cannot directly participate in electrochemical reaction is solved. The preparation method comprises the following steps: preparing aluminum dispersion liquid; then mixing a resin binder, an organic alcohol ether solvent and a functional auxiliary agent to obtain an organic carrier; mixing the flake silver powder with an organic carrier to obtain a conductive silver substrate; and dropwise adding the aluminum dispersion liquid into a conductive silver substrate, and stirring to obtain the Ag / Al composite ink. The silver powder constructs a continuous three-dimensional conductive network, the aluminum powder serves as a discrete electrochemical activity center, and balance of electrochemical activity and conductivity is achieved. The ink disclosed by the invention is adaptive to air pressure extrusion type printing and silk-screen printing, and the asymmetric active electrode prepared by printing can be used for preparing an electrochemical device and has high sensitivity, quick response and excellent cycling stability.

The invention relates to a plasma torch installation (1) comprising a torch chamber (10) capable of containing an active electrode, an introduction chamber (20) extending along a longitudinal axis (A) and allowing the introduction of an additional electrode, and a transit device (30) for moving an additional electrode from the introduction chamber to the torch chamber. The introduction chamber comprises a sealed wall (21), the sealed wall comprising an inlet (211) and an outlet (212) forming two openings in the wall, and the inlet comprises a first shut-off member (2111) and the outlet comprises a second shut-off member (2121) that are configured to respectively close the inlet and the outlet of the introduction chamber in a sealed manner. Transit elements for the additional electrode and a possibility of storing a plurality of additional electrodes in the introduction chamber are presented.

A single bipolar coexistence resistance change memory of single-layer amorphous gallium oxide with controllable defects and a preparation method, the device comprises a lower electrode, a resistance change material layer and an upper electrode arranged in turn from bottom to top; the lower electrode, the resistance change material layer and the upper electrode are all single-layer structures, the lower electrode adopts a Pt substrate, the resistance change material layer adopts an amorphous gallium oxide film, and the upper electrode adopts an active electrode Ag; wherein the resistance change material layer is prepared by a magnetron sputtering method, the oxygen defect concentration in the amorphous gallium oxide film can be controlled by changing the proportion of argon and oxygen flow in the magnetron sputtering process, so that the device has both unipolar and bipolar modes, and only the same current limiting is used in the single bipolar reversible change, and the same current limiting condition can simplify the circuit design of the integrated resistance change memory periphery, so as to reduce the integrated circuit area and the circuit power consumption. Finally, a vacuum evaporation equipment is used to prepare a 100-200nm upper electrode Ag. The present application simplifies the process flow, and has the advantages of simple structure, low power consumption and high device performance.

The present disclosure provides a device and a method for neuromodulation treatment. The neuromodulation device comprises a pulse generator to generate electrical pulses and at least one active electrode coupled to the pulse generator. The at least one active electrode has an electrically conductive surface configured to be attached to a leg of a patient. The at least one active electrode stimulates via the electrically conductive surface a nerve of the leg of the patient by the electrical pulses generated by the pulse generator. A control unit controls the pulse generator and sets at least one parameter of the generated electrical pulses. A response detector detects a response of the patient to the nerve stimulation and provides feedback on the detected response to the control unit. For the treatment the control unit determines a treatment setting by varying an initial setting of the at least one parameter of the generated electrical pulses until the detected response of the patient to the nerve stimulation is within a predetermined range.

Batteries are described which comprise specific organic compounds recyclable by depolymerization as redox-active electrode material. A further aspect of the present invention is the use of these specific recyclable compounds as electrode material in batteries, as well as a method for manufacturing batteries from such recycled compounds.

The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula [M][Nb]y[O]z; wherein the active electrode material is oxygen deficient; wherein M consists of one of Mg, Cr, W, Mo, Cu, Ga, Ge, Ca, K, Ni, Co, Al, Sn, Mn, Ce, Sb, Y, La, Hf, Ta, Zn, In, or Cd; y satisfies 0.5≤y≤49; and z satisfies 4≤z≤124.

The invention relates to a cathode for a rechargeable battery having a monolithic sulfur-structured cathode body, i.e. a sulfur wafer, comprising a heterogeneously branched and / or hyperbranched structure of twinned sulfur crystals as active electrode material.

The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM21-aM3bNb49-bO124-c-dQd.

The invention provides a steady-state visual evoked potential brain-computer interface system for snowflake point weak flicker coding, and the system comprises a stimulation presentation module which is used for presenting a stimulation interface of snowflake point weak flicker; each stimulation target comprises a corresponding frequency and initial phase combination, and the frequencies and initial phase combinations corresponding to different stimulation targets are different; the stimulation interface is used for guiding the sight line of the user to be transferred to a current stimulation target when each trial starts; the electroencephalogram collection module is used for collecting electroencephalogram signals of the occipital area of the user through a dry electrode head ring, and the dry electrode head ring comprises a plurality of movable electrodes, a reference electrode and a grounding electrode; the signal processing module is used for processing the electroencephalogram signal to identify a steady-state visual evoked potential and acquiring a frequency and phase combination of a stimulation target corresponding to the electroencephalogram signal; and the interaction control module is used for outputting a corresponding control instruction according to the frequency and phase combination of the stimulation target identified by the signal processing module to realize brain-computer interaction.

Electrode for lithium secondary battery and lithium secondary battery comprising the same. This disclosure relates to an electrode for a lithium secondary battery that not only effectively suppresses heat generation or ignition and thus has additional enhanced stability, but also enables the arrangement of batteries that exhibit excellent charge / discharge characteristics, and a lithium secondary battery comprising the same.The electrode for a secondary lithium battery comprises a metal current collector; and an active electrode material and a conductive material, and also comprises an active material layer formed on the metal current collector, wherein the active material layer further comprises a conductive polymer that exhibits a peak in the 1350 to 1600 cm⁻¹ band during Raman spectrum analysis, and exhibits PTC (positive temperature coefficient) characteristics, and wherein, when a cross-section of the active material layer is subjected to Raman imaging analysis, the conductive polymer is distributed in an amount of 90% by weight or more within a region that reaches 10% of the thickness of the active material layer from the surface of the metal current collector.

The invention relates to a mixed electrode containing plasmon nanoparticles and an electrolysis system containing the electrode. According to the mixed electrode and the electrolysis system comprising the electrode, the surface of a catalyst can be reactivated in an electrochemical reaction by means of a plasmon phenomenon by utilizing a plasmon-reactor combined electrode.

Described herein are composite battery electrode structures and methods of forming such structures. Composite battery electrode structures comprise active electrode material structures and polymer structures such that at least a portion of the polymer structures at least partially protrudes into some of the high capacity structures. Some of these polymer structures may be fully enclosed by the active electrode material structures. Other polymer structures may only partially extend inside the active electrode material structures. Furthermore, additional polymer structures may be bound to the external surface of the active electrode material structures. Composite battery electrode structures may be formed using low-temperature deposition techniques, such as solvent-thermal synthesis, direct chemical reduction, and electrochemical deposition. More specifically, composite battery electrode structures may be formed from a solution comprising active electrode material precursors and polymer precursors, e.g., dissolved polymers, monomers, and / or conductive polymers electrically coupled to the working electrodes.

A bipolar electrosurgical devices and methods of use for coagulation and ablation of tissue in a fluid-immersed working space is disclosed. The bipolar electrosurgical device can comprise a handle and an elongated shaft coupled to the handle. The bipolar electrosurgical device can further comprise a bipolar electrode arrangement and a return electrode. The bipolar electrode arrangement and the return electrode can be electrically insulated from one another. The bipolar electrosurgical device can further comprise an adjusting member carried by the elongated shaft. Movement of the adjusting member from a first position toward a second position can contemporaneously increase an effective surface area of the active electrode and decrease an effective surface area of the return electrode.

A device and method for affecting the patient's neural system by applying an Electric Field generated by an electrode pair electrically floating with respect to the earth potential and skin surface potential of the subject for achieving neurologic effects, such as analgesia, muscle relaxation, stress control, etc. The device includes a housing encasing a power supply, a device printed circuit board, and an electrode printed circuit board supporting at least one electrode pair. Each electrode pair includes an active electrode and a reference electrode arranged in either a non-coplanar or coplanar configuration. When driven by a signal source through a switching circuit and capacitor element, the electrodes generate internal and fringe electric fields that interact with the skin surface to induce lateral currents.

This invention relates to an electrosurgical resection tool for cutting, coagulating, and ablating biological tissue. The electrosurgical resection tool has an instrument tip including a first jaw and a second jaw; wherein the second jaw is movable relative to the first jaw between a closed position and an open position. The first jaw includes a first pair of electrodes electrically isolated from each other, the first pair of electrodes including an inner electrode and an outer electrode, and the second jaw includes a single electrode. The first pair of electrodes is operable as an active electrode and a return electrode for delivering RF EM energy, and the single electrode is operable as an active electrode when the inner electrode of the first jaw is operable as a return electrode, or the single electrode is operable as a return electrode when the inner electrode of the first jaw is operable as an active electrode. The instrument tip is also operable as a microwave field emission structure for emitting microwave EM energy.

The present invention provides a method and system for transforming biosignals to perform various operations associated with a computing device. The method may include accessing biosignal data collected by a biosignal data acquisition assembly, which includes a housing having one or more clusters of electrodes. Each cluster of one or more electrodes may include at least one active electrode. The method may also include identifying a first signal based on the biosignal data, which represents a first intention to move a first part of a subject's body. The first signal is generated before a second signal, which represents a second intention to move a second part of the subject's body. The method may also include transforming the first signal to identify a first operation to be performed by a computing device.

A tissue segmentation device, controller, and methods therefore are disclosed. The device has an active electrode, a return electrode, a mechanical force application mechanism, voltage and current sensors, and a controller. The controller has a processing component, configured to assign a circuit status to a circuit comprising the at least one electrode. IF (PF≈0) and ((Vrms / Irms)≥T), THEN the circuit status is “open”. IF (PF≈0) and ((Vrms / Irms)<T), THEN the circuit status is “short”. PF is a power factor of power applied to the electrosurgical device. T is a threshold value.

Method of forming a multilayered coating on an electrode, preferably anode, metal foil, comprising the steps of, (i) Providing a primer composition (a) and an active electrode composition (b); (ii) Simultaneously or substantially simultaneously applying the primer composition (a) and the active electrode composition (b) onto the electrode metal foil, wherein the primer composition (a) forms a primer layer (A) directly on the surface of the electrode metal foil and the active electrode composition (b) forms an active electrode layer (B) directly on the surface of the primer layer (A) to form the multilayered coating on the electrode metal foil; and (iii) drying the multilayered coating, wherein the primer composition (a) comprises, (I) at least one electro-conducting component comprising particulate carbon, (II) at least one binder component, (III) at least one co-binder component different from binder component (II), the co-binder being at least one polysaccharide or modified polysaccharide, and (IV) a dispersant component, wherein the dispersant component (IV) comprises a polymer of N-vinylpyrrolidone, the polymer of N-vinylpyrrolidone being (i) a homopolymer of N-vinylpyrrolidone which exhibits a K value in the range from 10 to 70; or (ii) a random copolymer of N- vinylpyrrolidone and at least one copolymerisable ethylenically unsaturated monomer which exhibits a K value in the range from 10 to 70. The invention also concerns a multilayered coated electrode, preferably anode, metal foil, comprising a primer layer (A) located directly on the surface of the electrode metal foil and an active electrode layer (B) which is located directly on the surface of the primer layer (A), the multilayered coated electrode metal foil being obtainable by the aforesaid method. The invention also includes the use of said polymer in the method.

Methods and systems for testing and treating spinal cord stimulation (SCS) patients are disclosed. Patients are eventually treated with sub-perception (paresthesia free) therapy. However, supra-perception stimulation is used during “sweet spot searching” during which active electrodes are selected for the patient. This allows sweet spot searching to occur much more quickly and without the need to wash in the various electrode combinations that are tried. After selecting electrodes using supra-perception therapy, therapy is titrated to sub-perception levels using the selected electrodes. Such sub-perception therapy has been investigated using pulses at or below 10 kHz, and it has been determined that a statistically significant correlation exists between pulse width (PW) and frequency (F) in this frequency range at which SCS patients experience significant reduction in symptoms such as back pain. Beneficially, sub-perception stimulation at such low frequencies significantly lowers power consumption in the patient's neurostimulator.