40 results about "Anode potential" patented technology

The invention discloses a method for simulating reverse current generation of an anion-exchange membrane water electrolyser and application of an accelerated stress test on the influence of the reverse current on an electrode, and relates to the technical field of electrochemistry. The method for generating the reverse current comprises the following steps: in a constant electrolysis state, 0V is applied at the moment of shutdown, the anode potential crosses the equilibrium potential, an instantaneous reverse polarization signal of-1.0 V vs. RHE appears, and then the instantaneous reverse polarization signal is quickly attenuated and approaches to zero, which indicates that the reverse current is successfully induced. The accelerated stress test method comprises the following steps of: respectively operating under different current densities, re-stopping and re-starting after operating under each current density, and repeating the operation. According to the method, real-time tracking and quantitative evaluation of the AEMWE anode failure process are achieved, the activity attenuation path and the inert covering layer forming process of the anode under the reverse current condition are defined, and reference is provided for reliability evaluation of the AEMWE electrode under the fluctuation working condition.

Secondary battery, characterized in that the secondary battery comprises a cathode foil and an anode foil, wherein the cathode foil comprises an active cathode material, the active cathode material comprising an olive-like phosphate and a lithium-containing oxide; wherein the secondary battery satisfies the following: (a×b) / c = 0.6 to 5; where a denotes a slope of a curve segment between a first oxidation plateau and a second oxidation plateau on a charging curve with a unit of V, obtained at 25°C within an operating voltage range of 2.5 V to 4.25 V; wherein a voltage range of the first oxidation plateau is 3.3 to 3.5 V, while a voltage range of the second oxidation plateau is 4.0 to 4.1 V; where b ↑a volume-phase lithium-ion transport impedance of the cathode foil in an EIS test at a SOC value corresponding to a minimum value between a first curve peak and a second curve peak of a dQdV-V curve at 25°C within the operating voltage range of 2.5 V to 4.25 V; where c denotes a decay rate of an anode potential during a charging process of the secondary battery at 25°C within the operating voltage range of 3.7 V to 4.25 V with a unit of V-1.

An anode potential adjustment device and an electron accelerator. The electron accelerator comprises a first electrode sheet (201), a second electrode sheet (202) and a high-voltage end (203), wherein the high-voltage end (203) is connected to the first electrode sheet (201). The anode potential adjustment device comprises a varistor (101) and an oil cylinder (102), wherein the varistor (101) is connected between the first electrode sheet (201) and the second electrode sheet (202); and the oil cylinder (102) is connected to a hydraulic pump by means of a hydraulic oil pipe, a piston of the oil cylinder is connected to the varistor (101), and the piston is configured to drive the varistor (101) to adjust a resistance value. The anode potential adjustment device can observe changes of a beam in real time when a high voltage and the beam exist at the same time, thereby making it easier to select an anode resistor (1010).

The present application relates to a kind of nickel-zinc iron ternary oxygen electrode and its preparation method and application, including the following steps: (a) on the conductive substrate, electrodepositing nickel-zinc pre-plating layer is plated;(b) the conductive substrate of the nickel-zinc pre-plating layer of plating is as anode, nickel electrode is as cathode, be placed in the hydroxide aqueous solution containing iron source, under the condition of 70-90 DEG C, anode potential 1.8V~2.2V electrochemical oxidation is carried out.The conductive substrate of the nickel-zinc pre-plating layer of plating is as anode, nickel electrode is as cathode to carry out electrochemical oxidation, so that the metal zinc in pre-plating layer can be anodically dissolved, and soluble zincate ion is generated, so that abundant pore and defect are formed in-situ in electrode interior;Iron ion in electrolyte occurs replacement reaction on dissolved zinc site or exposed nickel site, and is introduced into electrode skeleton;So that more stable, active, and substrate combined firmly Porous ternary nickel-zinc iron composite electrode is finally obtained.

Examples described herein provide a method for direct current (DC) fast charging for a cell of a battery of a vehicle. The method includes determining an anode potential current to apply during the DC fast charging. The method further includes determining a heat generation current to apply during the DC fast charging. The method further includes determining a cell voltage current to apply during the DC fast charging. The method further includes selecting a minimum current from the anode potential current, the heat generation current, and the cell voltage current. The method further includes charging the cell of the battery of the vehicle based on the minimum current.

The invention discloses a Pb / PbO2-polypyrrole composite anode and a preparation method of the Pb / PbO2-polypyrrole composite anode. The composite anode is composed of a Pb substrate and a PbO2-polypyrrole film layer on the surface of the Pb substrate. The preparation method comprises the following steps that pyrrole, nitric acid and a lead nitrate solution serve as electrolyte, and the PbO2-polypyrrole film layer is deposited on the surface of the Pb substrate through electrochemical oxidation. Polypyrrole is good in conductivity, the resistance of the composite electrode can be remarkably reduced, and the anode potential is reduced. In addition, polypyrrole and PbO2 are subjected to electrochemical oxidation codeposition, the compactness of the film layer and the bonding strength of the film layer and a substrate can be improved, and the stability of the film layer is improved.

The invention relates to a method for a motor vehicle for charging an energy storage device of the motor vehicle; wherein the method comprises: detecting charging information for charging the energy storage device with a charging current; determining, on the basis of an anode potential determined depending on the charging current and relating to the energy storage device, a charging current profile with a safety factor characterising current fluctuations; and outputting a charging signal for charging the energy storage device taking into account the charging current profile and the safety factor.

The present application discloses a lithium plating window determination method and apparatus, an energy recovery method, a device, and a medium. The lithium plating window determination method comprises: in a target state of charge, charging a target battery on the basis of a first charging rate; determining a current anode potential and a current internal resistance potential of the target battery when charged at the first charging rate; and when the current anode potential and the current internal resistance potential meet a preset condition, determining a lithium plating window of the target battery on the basis of the first charging rate. According to the method, the lithium plating window of the target battery is determined on the basis of the current anode potential and the current internal resistance potential of the target battery charged on the basis of the first charging rate in the target state of charge, which is beneficial to improving the accuracy of lithium plating window determination.

The application relates to an anion exchange membrane water electrolysis cell reverse current generation method and an accelerated stress test application of the influence of reverse current on electrodes, and relates to the technical field of electrochemistry. The reverse current generation method is as follows: under a constant electrolysis state, 0V is applied at a shutdown moment, the anode potential can cross the balance potential, a transient reverse polarization signal of -1.0 V vs. RHE appears, then quickly decays and tends to be zero, which indicates that the reverse current has been successfully induced. The accelerated stress test method is as follows: operation is carried out under different current densities, and after operation under each current density, the operation of re-stopping and restarting needs to be carried out, and the above operation is repeated. The application realizes real-time tracking and quantitative evaluation of the anode failure process of AEMWE, clearly defines the active decay path and the process of forming an inert covering layer of the anode under the condition of reverse current, and provides a reference for reliability evaluation of AEMWE electrodes under fluctuating working conditions.

This invention discloses a method for screening catalysts for the oxygen evolution reaction based on electrochemiluminescence quenching. The catalyst to be tested is loaded onto the working electrode, and then Ru(bpy)3 is added. 2+ In the electrolyte of / Hepes, applying an anodic potential to excite ECL accelerates the OER to generate O2, and O2 quenches the ECL signal. The signal intensity is negatively correlated with the catalytic activity. This method can be used for parallel detection on a single-electrode imaging array, achieving high throughput, visualization, and quantitative screening. It is applicable to various OER catalysts such as polyoxometalates and oxides, and has the advantages of being fast, low-cost, and easy to operate.

A heating assembly (100) for a kitchen device (10) is provided, the heating assembly (100) being mounted in a cavity (12) for receiving water to be heated, and including a heating element (120) for heating the water in the cavity (12), an electrode (130) for contact with the water in the cavity (12), a power source (140) connected to the heating element (120) and the electrode (130) for creating an electric potential between the heating element (120) and the electrode (130) with the heating element (120) having an anodic potential. A kitchen device (10) having the heating assembly (100) is also provided as well as a method of operating the kitchen device (10).

This invention relates to the field of water treatment technology and discloses a method and system for COD removal from nanofiltration concentrate. The method includes: acquiring full-band UV-Vis absorption spectral data, inorganic anion concentration data, and reactor geometric parameters of the nanofiltration concentrate; subtracting inorganic salt interference from the spectrum and identifying organic components through Gaussian deconvolution peak decomposition; generating a multi-level oxidation parameter sequence based on a comprehensive halogenation risk index assessed by halogenation reaction activity evaluation and a risk-aware oxidation mode decision model; calculating focused ultrasonic control parameters on the electrode surface through acoustic field finite element simulation; performing staged electrocatalytic oxidation treatment, simultaneously monitoring zoned current density and targeted cleaning of local contaminants, and monitoring trihalomethane concentration online and dynamically adjusting the anode potential. This invention solves the problems of organic matter identification bias, chlorination byproduct formation, and electrode contamination in the treatment of high-salt, high-chlorine nanofiltration concentrate.

Method for a motor vehicle for charging an energy storage device of the motor vehicle; wherein the method comprises: acquiring charging information for charging the energy storage device with a charging current; determining, based on an anode potential determined as a function of the charging current and relating to the energy storage device, a charging current profile with a safety factor characterizing current fluctuations; and outputting a charging signal for charging the energy storage device taking into account the charging current profile and the safety factor.

This application provides a pixel circuit and display, including: a reset module, a compensation module, a driving module, a data writing module, an anode potential control module, and a light-emitting device; the reset module, compensation module, data writing module, and anode potential control module are respectively connected to the driving module, and the driving module is connected to the light-emitting device; a first reset signal input terminal of the reset module and a second reset signal input terminal of the anode potential control module are used to connect to an initialization signal line; at least one of the first and second reset signal input terminals is also connected to a capacitor. By setting a capacitor at at least one of the first and second reset signal input terminals to maintain the potential until the next frame is refreshed, and by connecting the initialization signal line, the OLED display screen can be zoned and controlled, enhancing the uniformity of the OLED display screen.

A power module includes a bridgeless PFC circuit and a controller. The bridgeless PFC circuit includes a low-frequency module and a high-frequency module that are connected. The low-frequency module includes two low-frequency bridge arms that are connected in parallel. One low-frequency bridge arm includes two low-frequency switching transistors that are connected in series. The other low-frequency bridge arm includes two diodes that are connected in series. The controller is configured to turn off the low-frequency switching transistor in the one low-frequency bridge arm when an anode potential and a cathode potential of the diode in the other low-frequency bridge arm meet at least one of the following conditions: A difference obtained by subtracting the cathode potential from the anode potential is greater than a preset voltage value, and a difference obtained by subtracting the anode potential from the cathode potential is less than an opposite number of the preset voltage value.

The application discloses a pixel driving circuit, an OLED display panel and a display device. The pixel driving circuit comprises a data writing module, a driving module, a light emitting device and an anode potential control module. The data writing module is configured to provide a data voltage to the driving module under the control of a gate driving signal. The driving module is configured to drive a first light emitting device, a second light emitting device or a third light emitting device in the light emitting device to emit light. The anode potential control module is configured to write a voltage to the anode of each light emitting device. According to the technical scheme provided in the embodiment of the application, a pixel driving circuit is provided, and fewer transistors and capacitors are used in the pixel circuit, so that the pixel density of the display panel is improved.

The invention relates to the technical field of new energy automobile fuel cells, and provides a fuel cell anode high potential suppression method and system.The method comprises the steps that the state of a fuel cell system is detected in real time, and when it is detected that the fuel cell system is stopped or the hydrogen pressure is lower than a preset pressure threshold value, the fuel cell system is started; an anode gas isolation valve located on an anode hydrogen inlet pipeline is closed and / or an anode tail gas exhaust valve is opened; the anode potential is monitored in real time, whether the current anode potential is higher than a set value or not is judged, if yes, the current anode potential is in a high potential, and if not, the current anode potential is in a safe area; and if the current anode potential is in the high potential, starting a potential pulling device electrically connected with the anode, pulling down the current anode potential, and when the current anode potential is recovered to the safe area, closing the anode tail gas exhaust valve and stopping the potential pulling operation of the potential pulling device. The invention can effectively prevent the generation of high potential of the anode and improve the safety and stability of the fuel cell system.

A battery charging system includes a charger that is dynamically controlled during charging, including during rapid charging events that include elevated voltage and / or elevated current levels. The charger is connectable to a battery cell of a rechargeable energy storage system. Operation includes transferring electric power having a charging current at a maximum charging rate to the battery cell. An anode potential offset setpoint is determined. A predicted anode potential offset is determined at an interface between the anode and the separator based upon the cell voltage for the battery cell. The charger is controlled to transfer the electric power to the battery cell based upon a temperature distribution in the battery cell and a difference between the anode potential offset setpoint and the predicted anode potential offset.

The present application relates to a kind of nickel-zinc iron ternary oxygen electrode and its preparation method and application, including the following steps: (a) on the conductive substrate, electrodepositing nickel-zinc pre-plating layer is plated;(b) the conductive substrate of the nickel-zinc pre-plating layer of plating is as anode, nickel electrode is as cathode, be placed in the hydroxide aqueous solution containing iron source, under the condition of 70-90 DEG C, anode potential 1.8V~2.2V electrochemical oxidation is carried out.The conductive substrate of the nickel-zinc pre-plating layer of plating is as anode, nickel electrode is as cathode to carry out electrochemical oxidation, so that the metal zinc in pre-plating layer can be anodically dissolved, and soluble zincate ion is generated, so that abundant pore and defect are formed in-situ in electrode interior;Iron ion in electrolyte occurs replacement reaction on dissolved zinc site or exposed nickel site, and is introduced into electrode skeleton;So that more stable, active, and substrate combined firmly Porous ternary nickel-zinc iron composite electrode is finally obtained.

The invention provides a reliable detection device and detection method for the potential of an offshore wind power sacrificial anode based on an electromagnet principle, and belongs to the technical field of offshore wind power detection. The detection device comprises a reference electrode, a multimeter, a wire, an electromagnet, a wire length automatic calculation device and a power supply, the reference electrode is connected with the multimeter through the wire, the electromagnet is closely close to the reference electrode, the wire length automatic calculation device is matched with the wire, and the power supply controls the electromagnet to be powered on and powered off. According to the detection method, the wire placement length is set through the wire length automatic calculation device, the electromagnet is powered on to adsorb the surface of the steel structure to achieve positioning, detection points are switched after potential detection is completed, and all-directional detection is achieved through the orientation calibration module. Accurate positioning of the reference electrode is achieved through gravity and magnetism of the electromagnet, environment and man-made interference is eliminated through automatic calculation of the length of the wire and orientation calibration, the detection accuracy is improved, and a reliable basis is provided for sacrificial anode protection effect analysis.

The invention relates to a regeneration method for a silicon-containing electrochemical storage cell, wherein the electrochemical storage cell is operated in a battery electric vehicle, and an anode active material at least partly contains silicon, having the following steps: - discharging the electrochemical storage cell from an operating charging range to a target threshold value, the target threshold value being a function of the anode potential of the electrochemical storage cell and the phase transition of the silicon from a crystalline form to an amorphous form, and then - charging the electrochemical storage cell into the operating range.

An electron beam source includes a vacuum chamber containing a cathode and an anode separated by a vacuum gap forming a local full-voltage capacitive structure storing electrical energy at an operating voltage. A high-voltage power supply charges the capacitive structure without an intervening Marx generator, linear transformer driver, Tesla transformer, pulse-forming network, or pulse-forming transmission line. A triggering arrangement initiates electron emission to produce electron pulses traversing the vacuum gap, with discharged electrical energy transferred predominantly to electrons crossing the gap. In some embodiments, the local capacitive structure stores a majority of total electrical energy stored at the operating voltage in capacitances directly coupled between conductors at cathode and anode potentials. Multi-beam configurations, beam steering, passive synchronization, and contamination management features may be included.

The invention discloses a lithium precipitation window determination method and device, an energy recovery method, equipment and a medium, and the lithium precipitation window determination method comprises the steps: charging a target battery according to a first charging rate in a target state of charge; determining the current anode potential and the current internal resistance potential of the target battery under the charging of the first charging rate; and under the condition that the current anode potential and the current internal resistance potential meet a preset condition, determining a lithium precipitation window of the target battery according to the first charging rate. According to the method, the lithium precipitation window of the target battery is determined based on the current anode potential and the current internal resistance potential of the target battery in the target charge state according to the first charging rate, and the determination accuracy of the lithium precipitation window is improved.

The invention relates to the technical field of metal material surface engineering and corrosion protection, and discloses an 825 alloy surface pre-oxidation treatment method which comprises the following steps: firstly, constructing a non-aqueous functional deep eutectic electrolyte consisting of a hydrogen bond acceptor, a hydrogen bond donor and a rare earth salt compound; based on the thermodynamic dissolution potential difference of alloy components, under the specific anode potential between the iron and nickel active dissolution potential and the chromium over-passivation potential, the 825 alloy is subjected to selective dealloying treatment, iron and nickel atoms on the surface layer are removed, meanwhile, a chromium framework is reserved, and a metastable-state chromium-rich nano-porous structure is constructed; and the rare earth ions are driven by an electric field to permeate and adsorb into the nanopores in situ. According to the method, an integrated regulation and control strategy of nano pore-forming, adsorption, collapsing and film forming is utilized, on the premise that the chromium element in the deep layer of a matrix is not consumed, the compact chromium oxide protective film with rare earth doped in the crystal boundary is grown in situ, and the growth kinetics of the oxide film is effectively changed.

The application discloses a system for monitoring the cathode / anode potential of an electrochemical desalination process in situ, comprising an electrochemical workstation, a voltage stabilizer, a computer and an electric conductivity instrument, further comprising a peristaltic pump connected with an electrochemical desalination tank, a desalination water tank, a to-be-measured liquid tank and a concentrated water tank through pipelines, the concentrated water tank is connected with the peristaltic pump through a pipeline, further comprising a modified reference electrode and a sensor group, the peristaltic pump is electrically connected with the computer; the lug of the cathode / anode with fixed holes of the electrochemical desalination tank is electrically connected with COM 1 and COM 2 of the electrochemical workstation respectively; the second lug of the second cathode / anode with fixed holes is electrically connected with COM 1 and COM 3 of the electrochemical workstation respectively; the desalination water tank is electrically connected with the electric conductivity instrument; the sensor group is electrically connected with the computer; the system can monitor the change rule of the cathode / anode potential with time in the normal test process of the electrochemical desalination in situ.

The application discloses a kind of beam spot adjusting method and electron accelerator, the electron accelerator includes a anode potential adjusting device and an electron extraction device, the hot cathode of the electron accelerator is located on the electron extraction device, the beam spot adjusting method includes: obtaining the accelerating tube physical parameter of electron accelerator;According to the beam waist position of accelerating tube physical parameter calculation electron bunch;According to the control quantity of anode potential adjusting device obtained by beam waist position;The beam spot size of accelerating tube outlet is adjusted using the control quantity.The application can obtain the extraction electric field distribution, achieve the purpose of controlling beam envelope, so that the electron bunch safely reaches the outlet of electron accelerator, while controlling the potential difference between cathode and anode, realizing the dynamic adjustment of accelerator extraction port beam spot size within a certain range.

The examples described here provide a method for direct current (DC) fast charging of a vehicle battery cell. The method includes determining an anode potential current to be applied during DC fast charging. The method further includes determining a heat generation current to be applied during DC fast charging. The method further includes determining a cell voltage current to be applied during DC fast charging. The method further includes selecting a minimum current from the anode potential current, the heat generation current, and the cell voltage current. The method further includes charging the vehicle battery cell based on this minimum current.

The invention discloses a V2G battery charging and discharging optimization method and system based on anode potential real-time feedback, and relates to the technical field of vehicle battery management. Comprising the steps that 1, initial parameters of a vehicle-mounted battery are pre-stored in an edge controller of an edge end based on a cloud edge architecture, 2, after V2G service is started, real-time data of the battery are continuously collected at high frequency through a vehicle-mounted BMS and transmitted to the edge controller, the collected real-time data comprise terminal voltage U, current I, temperature T and an estimated SOC value, and the edge controller is connected with the vehicle-mounted BMS. 3, the edge controller carries out battery internal health stress state estimation, and 4, on-line optimization is carried out based on an internal state estimation value, feedback data is obtained, and an execution strategy is continuously adjusted.