92 results about "Anode potential" patented technology

In one aspect, while a battery pack is charging, a computer-implemented method may include predicting an anode potential of the battery pack, and determining whether the anode potential satisfies a threshold condition. Responsive to determining that the anode potential satisfies the threshold condition, the method may include modifying a charging policy of a battery pack to adjust an anode potential offset, and controlling, based on the charging policy, charging of the battery pack to adjust the anode potential offset.

In one aspect, a computer-implemented method may include determining whether an anode potential offset of a battery pack has reached an upper threshold of a target range, responsive to determining that the anode potential offset of the battery pack has reached the upper threshold of the target range, receiving tear-down data associated with the battery pack, training, based on the tear-down data associated with the battery pack, cloud prediction models that are trained to predict a likelihood of occurrence of lithium plating associated with battery packs, and transmitting, to edge processors of fleet vehicles, parameters associated with the trained prediction models to cause the edge processors to train edge prediction models using the edge processors, wherein the edge processors modify a battery charging policy based on a prediction from the edge prediction models.

The invention relates to a charging method and device, equipment, a storage medium and a computer program product. The method comprises the steps that in the battery charging process, a preset discharging strategy is adopted to discharge a battery for multiple times till the battery is charged to the preset charge quantity, and the discharging strategy comprises the corresponding relation between multiple charge quantities and discharging parameters. According to the charging method, the battery is discharged at intervals of different charging charges by utilizing the discharging parameters, namely, a scheme of continuously applying discharging pulses in a multi-time charging process is realized, and the lithium precipitation appearance of the surface of the negative electrode of the battery can be regulated and controlled to a certain extent, so that the lithium precipitation appearance of the surface of the negative electrode of the battery becomes uniform, and the lithium precipitation effect of the surface of the negative electrode of the battery is improved. Therefore, the lithium precipitation phenomenon on the battery surface is reduced. In addition, rapid depolarization of the battery can be realized, the anode potential is continuously improved in the charging process, and the risk of lithium precipitation can be reduced to a certain extent.

A battery system includes a non-reference battery cell; a reference battery cell including a cathode, an anode, and a reference electrode; a potential measuring means configured to measure a reference potential of the anode relative to the reference electrode, of the reference battery cell, and to generate a signal corresponding to the reference potential; and a controlling means configured to receive the signal and to reduce, during a charging process of the battery system, a charging current applied to the battery system when the signal indicates that the reference potential is below a predetermined threshold voltage. The non-reference battery cell may be disposed at a first position in the battery system, and the reference battery cell may be disposed at a second position in the battery system, the second position being a position that has a lowest temperature, among the first and second positions, during the charging process.

The invention discloses a low-complexity battery lithium precipitation detection method and system, and relates to the technical field of battery detection, and the method comprises the following steps: S1, a battery sensor module; s2, an electrochemical model SEM module; s3, a PID observer module; s4, a state correction and anode potential calculation module; and S5, a lithium precipitation risk judgment module. By combining the simplified electrochemical model SEM and the PID observer which is simple in structure and easy to implement, the calculation burden and the implementation cost are remarkably reduced while the acceptable estimation precision and the quick response capability to the anode potential are ensured; therefore, an anode potential online estimation and lithium precipitation detection scheme which is economical, feasible, reliable in operation and easy in engineering deployment is provided, and a key technical support is provided for safe and efficient operation of the lithium ion battery.

The invention discloses a sacrificial anode state monitoring and service life prediction method for ship cathode protection, belongs to the technical field of sacrificial anode state monitoring and service life prediction, and solves the problems that the anode protection current generated by a sacrificial anode can be reduced to a pA level at the initial stage of corrosion, and the service life of the sacrificial anode cannot be predicted under the condition that strong interference exists in an actual environment. The performance of an existing sacrificial anode detection technology cannot meet the high-precision detection requirement, so that the requirement for predicting the service life of a sacrificial anode cannot be met, and the requirement for judging the early corrosion trend cannot be met. The method comprises the steps that a plurality of node monitoring detection boxes are used for detecting the anode potential of a sacrificial anode connected with a cathode, and protection current between the cathode and the sacrificial anode is detected in a multi-range mode and stored; and the monitoring substation is used for monitoring the state of the sacrificial anode and predicting the service life of the sacrificial anode based on the anode potential and the protection current detected by the plurality of node monitoring detection boxes. The method is used for sacrificial anode state monitoring and life prediction.

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.

The invention discloses a beam spot adjusting method and an electron accelerator, the electron accelerator comprises an anode potential adjusting device and an electron extraction device, a hot cathode of the electron accelerator is arranged on the electron extraction device, and the beam spot adjusting method comprises the following steps: acquiring physical parameters of an accelerating tube of the electron accelerator; calculating the beam waist position of the electron beam bunch according to the physical parameters of the accelerating tube; the control quantity of an anode potential adjusting device is obtained according to the girdling position; and adjusting the beam spot size of the outlet of the accelerating tube by using the control quantity. According to the invention, the extraction electric field distribution can be obtained, the purpose of controlling the beam envelope is achieved, so that the electron beam bunch safely arrives at the outlet of the electron accelerator, and the dynamic adjustment of the accelerator extraction outlet beam spot size within a certain range is realized by controlling the potential difference between the cathode and the anode.

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 invention relates to an LED module comprising: at least two LEDs connected in series and arranged on a printed circuit board (PCB), the printed circuit board comprising two terminals for electrical supply from a driver to the LEDs; a surge current protection structure, the surge current protection structure comprising: a first metal surface disposed on the PCB and connected to anode potential energy of the LEDs connected in series; and a second metal surface arranged on the PCB and connected to the cathode potential energy of the LEDs connected in series, furthermore, the first metal surface and the second metal surface are respectively connected in a thermally conductive manner with each LED of the LEDs of the first group of LEDs at the anode potential energy side of the LEDs connected in series, and the first metal surface and the second metal surface are respectively connected in a thermally conductive manner with each of the LEDs of the second group of LEDs at the anode potential energy side of the LEDs connected in series. And each LED in the second group of LEDs at the cathode potential energy side of the LEDs connected in series is connected in a thermally conductive manner.

The invention discloses a proton exchange membrane fuel cell anti-antipole catalyst and a preparation method thereof, the activity of the catalyst is improved through the interaction between metal and supported platinum, the stability of the catalyst is improved through an embedding mode, and the anti-antipole capability of the catalyst is effectively improved. The invention mainly aims to solve the problem that the reverse pole condition that the anode potential is higher than the cathode potential occurs under the conditions of non-uniform or insufficient material supply, water logging, improper temperature, non-uniform current density and the like of a proton exchange membrane fuel cell catalyst, and the condition can cause that a cell unit loses a normal power generation function and even breaks down. It not only affects the efficiency and stability of the entire fuel cell system, but also may lead to accelerated aging, damage or other permanent damage of the membrane electrode assembly.

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 present invention provides a fuel cell potential distribution test device, which belongs to the field of fuel cell technology. The device includes: a membrane electrode, at least one potential sensor assembly located on the upper and lower surfaces of the membrane electrode; the potential sensor assembly is used to detect the potential distribution of the membrane electrode. The present invention sets the potential sensor assembly, and by adjusting the number, position and arrangement of the bridge and the potential sensor group, the cathode potential and the anode potential at any position of the membrane electrode can be tested simultaneously, and the potential test range is greatly improved; and the relative position of the potential sensor assembly is fixed, the test error is small, the accuracy is high, and the operation is stable; the present invention has high reliability, the reaction electrode assembly is located in the active area of ​​the membrane electrode, and there are sufficient water molecules to maintain the stable operation of the reaction electrode assembly.

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 provides a method for preparing pure aluminum by regenerating waste aluminum through ionic liquid electrolysis, and belongs to the technical field of non-ferrous metal metallurgy. The method comprises the following steps: carrying out electrolytic dissolution by taking the waste aluminum alloy as an anode and the ionic liquid as an electrolyte to obtain the ionic liquid containing impurity ions; and carrying out constant potential deposition on the ionic liquid containing the impurity ions to obtain pure aluminum. The aluminum chloroaluminate ionic liquid is adopted as an electrolyte, the aluminum scrap is adopted as an anode, and the aluminum scrap component is dissolved out by regulating and controlling the potential of the anode; the insoluble impurities are separated in the form of anode mud, the soluble impurities are separated out in the form of aluminum alloy through constant potential deposition, electrolyte is purified, and finally, industrial pure aluminum is obtained through deposition in the purified ionic liquid. The method is low in operation temperature and free of harmful gas emission, solves the energy consumption and environmental bottleneck of the secondary aluminum industry, and breaks through the technical problem of impurity separation.

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 invention provides a performance regulation and control method and device of an electrocatalyst, electronic equipment and a program product. The performance regulation and control method of the electrocatalyst comprises the following steps: determining a regulation and control interval of an anode potential and a regulation and control interval of a cathode potential in a target electrochemical reaction according to an electrochemical behavior of the target electrochemical reaction and dynamic characteristics of an interface structure of the electrocatalyst; determining the control duration of the anode potential, the control duration of the cathode potential and the duration ratio of the anode potential and the cathode potential according to the dynamic characteristics and the stability requirement of the electrocatalyst; generating a corresponding pulse voltage according to the regulation and control interval, the control duration and the duration proportion corresponding to the anode potential and the cathode potential; in the reaction process of the target electrochemical reaction, pulse voltage is applied to the electrocatalyst, and performance regulation and control of the electrocatalyst are achieved. According to the technical scheme, the activity and stability of the electrocatalyst can be improved, and the service life of the electrocatalyst can be prolonged.

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.

The invention belongs to the field of waste treatment and energy recycling, and discloses a device and method for producing ethanol through electric fermentation of food industry wastewater based on lactic acid bacteria and saccharomycetes mixed culture. The device comprises an anode chamber and a cathode chamber, the cathode chamber is arranged in an inner cavity of the anode chamber, and the tops of the anode chamber and the cathode chamber are sealed; a preset distance is reserved between the bottom of the cathode chamber and the bottom of the anode chamber, a proton exchange membrane is arranged at the bottom of the cathode chamber, a cathode electrode is arranged in an inner cavity of the cathode chamber, the top of the inner cavity of the cathode chamber is further connected with a gas collection structure, an anode electrode is arranged in the inner cavity of the anode chamber outside the cathode chamber, and the anode chamber is further provided with an anode chamber water inlet and an anode chamber water outlet. According to the invention, the metabolic pathway of microorganisms is controlled by controlling the cathode and anode potentials, and ethanol is generated for recycling; the anode loses electrons to reach a corresponding potential to control metabolism of anode microorganisms, so that removal and directional conversion of organic matters are realized; protons on the surface of the cathode are reduced into hydrogen by electrons.

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.

The invention discloses a crosstalk suppression circuit and method with a self-recovery function based on a GaN HEMT, and belongs to the technical field of power electronics and power transmission, and the circuit topology structure comprises a square wave gating module, a resistor R1, a capacitor C1, a diode D1 and a diode D2. According to the method, the capacitor is charged in the gate opening process, then when the GaN HEMT is turned off and enters the dead time, the anode potential of the capacitor is changed into 0 and is clamped by the diode, and the capacitor provides negative voltage for the gate-source electrode of the GaN HEMT; when the positive crosstalk comes, the gate source voltage is a negative value, and the positive crosstalk can be successfully suppressed; and finally, the grid source voltage is recovered to 0 before the negative crosstalk comes, so that the negative crosstalk is prevented from being intensified. According to the invention, a simple passive device architecture is adopted, an additional power supply and control unit are not needed, the switching speed of the device is not influenced, additional power loss is not increased, the cost is low, the stability is high, positive and negative crosstalk can be effectively inhibited, and the operation reliability and conversion efficiency of a power conversion system can be remarkably improved.

The invention provides a method for producing hydrogen by electrolyzing coal water slurry based on pulse electrocatalysis, and belongs to the technical field of hydrogen energy production. The method comprises the following steps: S1, mixing pulverized coal with a first acid solution to obtain coal water slurry; s2, forming an electrolytic tank hydrogen production device by taking the coal water slurry as an anolyte and taking a second acid solution as a catholyte; s3, pulse power supply is conducted on the anode of the electrolytic tank hydrogen production device, and electrolytic hydrogen production is conducted under the condition that the temperature ranges from 60 DEG C to 80 DEG C; according to the pulse power supply method, the anode potential ranges from 1.4 V to 1.8 V, the resting potential is 0 V, the pulse frequency ranges from 0.4 Hz to 0.6 Hz, and the pulse duty ratio ranges from 40% to 60%. And a pulse power supply mode is adopted, so that the electrode polarization phenomenon can be effectively reduced, the electrolysis process is smoother, and the electrolysis efficiency is remarkably improved.

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.

The invention discloses a hydrogen production method for treating etching solution wastewater by using a photo-assisted single-chamber microbial electrolytic cell, and relates to the technical field of microbial electrochemistry and photocatalysis, and the hydrogen production method comprises the following steps: S1, mixing an anolyte of a stably operated double-chamber microbial fuel cell with etching solution tail end wastewater, adding the mixture into a reactor, and regularly replacing the solution until the anode potential is stable; s2, domesticating two ends of the electrode by using a direct-current power supply and external voltage until the potential of the cathode is reduced, and completing the domestication of the anode; and S3, the photocathode adopts a photocatalytic material, and organic matters are mineralized and nickel ions are removed while hydrogen is produced under an external voltage condition. The photo-assisted microbial electrolytic tank integrates the advantages of water electrolysis hydrogen production, photocatalytic hydrogen production and microbial electrolytic tank hydrogen production, overcomes the defect that a photocatalyst for photocatalytic hydrogen production is unstable, reduces the energy consumption required by microbial electrolytic tank hydrogen production, and recovers heavy metal mineralized refractory organics in etching liquid tail end wastewater. The method is a clean, efficient and low-consumption mode for treating wastewater and simultaneously producing hydrogen.

A method for real-time estimation of an anode potential of a battery (20) in connection with a battery charging event, comprising: obtaining at least one quantified State of Health [SoH] indicator of the battery (20) as output from a first machine-learning system (14); and feeding the obtained at least one quantified SoH indicator, together with battery charging data associated with the charging event, as input to a second machine-learning system (15), which provides an estimate of the anode potential of the battery (20) as output.