20 results about "Cell potential" patented technology

A screening gas diffusion material, which can have a porosity and which can be a layer and which can be a membrane, for use in electrolysis systems and methods, such as in an electrolyzer, permits smaller molecules, such as methanol, to pass through while excluding larger organic contaminants from reaching the catalyst surface. The screening layer minimizes the energy penalty caused by the larger organic impurities while maintaining the cell potential below the threshold where catalysts are potentially oxidized.

The present disclosure relates to a semiconductor device and a cell potential measuring device capable of improving measurement accuracy of a potential of a solution. A semiconductor device includes a read electrode that reads a potential of a solution, a differential amplifier, a first capacitor connected in series in a loop feeding back an output of the differential amplifier to a second input different from a first input from the read electrode, a resistance element connected in parallel with the first capacitor, and a second capacitor connected between a reference electrode indicating a reference potential and the second input. The present disclosure can be applied to, for example, a cell potential measuring device.

The invention relates to the technical field of cell potential balance, and discloses a method for realizing cell potential balance, which comprises the following steps: condensing air into water vapor under the action of low temperature; the condensed water vapor is subjected to cracking treatment, and hydrogen ions and oxygen ions are obtained through cracking; hydrogen ions are placed in the magnetization structure to be magnetized, so that the hydrogen ions bear negative charges, and hydrogen-like negative ions are formed; and the formed hydrogen-like negative ions act on the periphery of the cells, so that the cells realize potential balance. Air is humidified into water vapor, then the water vapor is cracked into hydrogen ions, the hydrogen ions are magnetized, the hydrogen ions bear negative charges to form hydrogen-like negative ions, the negative charges of the hydrogen-like negative ions act on the peripheries of cells, the cells can achieve potential balance, the stability of the cells can be kept, and the cell quality is improved. The hydrogen-like negative ion is a negatively charged particle, has a small ion particle size, can freely enter and exit from cells, enhances the level of intracellular membrane potential and action potential, and injects power for cell vital movement into the cells.

A method and system for enhancing nutrient mobility in soil is disclosed. The method includes providing waste including one or more of waste activated sludge (WAS), biosolids, manure, food waste, or combinations thereof and preparing an alkaline electrolyte solution. The method further includes subjecting the waste to electrolysis in the alkaline electrolyte solution using a pair of electrodes positioned within a serpentine flow electrochemical cell operated at a cell potential of approximately ±2.5 volts with periodic polarity switching, thereby producing an organic mineral fertilizer formulation. The method also includes applying the organic mineral fertilizer formulation to a soil system selected from agricultural soil and potting mix at a rate of approximately 70 pounds nitrogen per acre. The organic mineral fertilizer formulation can comprises ammonium (NH₄⁺), nitrate (NO₃⁻), and phosphorus.

Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a redox flow battery with a unit cell potential equal to or greater than 3.5 volts. The systems include a positive section, a negative section, and an electroactive bipolar redox molecule comprising an anolyte moiety and a catholyte moiety separated by a non-conjugating insulating linker. The catholyte moiety comprises para-dimethoxybenzene and the non-conjugating insulating linker comprises at least two -CX2 linkers, wherein X comprises at least one atom selected from the group consisting of hydrogen and heteroatoms. The positive section comprises a first metal electrode in contact with the electroactive bipolar redox molecule and a supporting electrolyte dissolved in a solvent. The negative section comprises a second metal electrode in contact with the electroactive bipolar redox molecule and additional electrolyte dissolved in additional solvent.

The embodiment of the invention provides a lithium precipitation detection method, which comprises the following steps: acquiring to-be-processed data of a target battery, the to-be-processed data comprising real state data of the target battery at a plurality of historical moments in a historical time period before the current moment in the current charging process, and the real state data comprising a total battery potential value and a charging current value; processing the to-be-processed data by using a pre-trained potential prediction model to obtain predicted cathode potential values of the target battery at a plurality of historical moments; the potential prediction model is constructed to be obtained by training on the basis of real state data and real specified potential values of a sample battery at multiple sample moments in a historical charging process, and the real specified potential values comprise a real positive potential value or a real negative potential value; and on the basis of the plurality of obtained predicted negative electrode potential values, whether lithium precipitation occurs in the target battery at a plurality of historical moments is judged, so that the accuracy of lithium precipitation detection is improved.

A method for diagnosing a battery cell for an energy storage device for a motor vehicle, comprising: capturing a cell voltage profile of the battery cell during a partial charge process to charge the battery cell from an initial state of charge to a final state of discharge; reconstructing a voltage curve corresponding to a health state based on the cell voltage profile, taking into account that the partial charge depends on the health state, the initial state of charge, and the final state of discharge; determining half-cell potentials based on the voltage curve; and determining diagnostic parameters relating to degradation modes of the battery cell based on the half-cell potentials.

Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a redox flow battery with a unit cell potential equal to or greater than 3.5 volts. The systems may include a positive section, a negative section, and an electroactive bipolar redox molecule comprising an anolyte moiety and a thianthrene-containing catholyte moiety separated by a non-conjugating insulating linker. The thianthrene-containing catholyte moiety may comprise thianthrene or at least one of its derivatives and the non-conjugating insulating linker comprises at least two —CX2 linkers, wherein X comprises at least one atom of hydrogen and / or heteroatoms. The positive section may comprise a first metal electrode in contact with the electroactive bipolar redox molecule and a supporting electrolyte dissolved in a solvent. The negative section may comprise a second metal electrode in contact with the electroactive bipolar redox molecule and additional electrolyte dissolved in additional solvent.

Disclosed herein are a variety of systems, compositions, and methods for reversibly storing electrical energy in a redox flow battery with a unit cell potential equal to or greater than 3.0 volts (V). The system may include an electroactive redox molecule, a positive section, and a negative section. The electroactive redox molecule may comprise an anolyte moiety comprising a multi-ring conjugated system comprising at least one sulfone group, wherein an anolyte reaction occurs at a cell potential less than −1.50 V. The positive section may comprise a first metal electrode in contact with the electroactive bipolar redox molecule and a supporting electrolyte dissolved in a solvent. The negative section may comprise a second metal electrode in contact with the electroactive bipolar redox molecule and additional electrolyte dissolved in additional solvent.

An electrochromic device is provided. The device includes a first transparent substrate, a second transparent substrate, a first conductive layer having a first resistance gradient disposed on an inner surface of the first transparent substrate, and a second conductive layer having a second resistance gradient disposed on an inner surface of the second transparent substrate. The device further includes a first bus bar in contact with the first conductive layer, a second bus bar in contact with the second conductive layer, and a first detection voltage pad disposed on an inner surface of the first transparent substrate, the detection voltage pad configured to measure a local battery potential at a detection voltage measurement location within the electrochromic device, the first resistance gradient and the second resistance gradient are configured to form a region containing a maximum local battery potential that substantially coincides with the detected voltage measurement location.

The present invention proposes a self-propelled, multi-point, synchronous detection device for the half-cell potential of reinforced concrete. The device comprises a support frame, two detection rollers, a transmission mechanism, an electric motor, multiple propeller mechanisms, and a control unit. The output of the potential detection unit is electrically connected to the control unit, the control unit of the electric motor is electrically connected to the control unit, and the control unit of the propeller mechanism is electrically connected to the control unit. A battery is disposed within the inner cavity of the support frame to power the potential detection unit, the electric motor, the propeller mechanism, and the control unit. The beneficial technical effect of the present invention is that it proposes a self-propelled, multi-point, synchronous detection device for the half-cell potential of reinforced concrete. This solution can significantly improve detection efficiency and coverage, and is particularly suitable for detecting the bottom surfaces of tall structures.

The invention discloses a method for comprehensively improving and monitoring the durability of a desalination plant project, comprising the following steps: S1, using a half-cell potential method to measure the corrosion of steel bars, steel meshes and raft foundations in concrete; S2, using a linear polarization method to further detect the corrosion rate of steel bars; S3, using an AC impedance spectrum method to observe the microstructural changes of concrete after corrosion; S4, using an impressed current cathode protection method to avoid or weaken the occurrence of corrosion reactions; S5, using COMSOL simulation software to construct a chloride ion transmission model. The invention solves the durability problem in the construction of a desalination plant project; has a good effect in preventing steel bar corrosion; uses COMSOL simulation software to establish a chloride ion transmission model, combines monitoring data, and predicts the time and depth of corrosion with high accuracy; the monitoring structure system is complete; and can be promoted and applied to other corrosive concrete structures, with great promotion and application value.

A two-part reference electrode for measuring impedance in a lithium-ion cell includes a first part (electrode Ref1) and a second part (electrode Ref2), each of which includes a metallic conductor. The first part and the second part are attached to a substrate separately from each other, and have a substantially constant spacing. The separator of the lithium-ion cell can act as a substrate. The electrode can be used for determining temperature and for detecting degradation of the electrode or electrolyte by way of impedance measurement. The electrode can also be used as a reference electrode for measuring half-cell potentials.

A process for the electrochemical treatment of wastewater from the production of mononitrotoluene, which comprises the steps: a) introducing a wastewater stream from the production of mononitrotoluene into an undivided electrolysis cell, wherein the electrolysis cell comprises at least one anode and at least one cathode and wherein at least one anode comprises a support material and a coating, where the support material comprises at least one metal selected from the group consisting of niobium (Nb), tantalum (Ta), titanium (Ti) and hafnium (Hf), and the coating comprises boron-doped diamond; b) carrying out an electrolysis at a power density in the range from 0.1 to 10 kA / m2 and a cell potential in the range from 1 to 15 V.

Method for forming a negative electrode for a lithium-ion cell, comprising the steps of - first constant current charging with a first charging current until a first half-cell potential is reached against a reference electrode, - first constant voltage charging at the first half-cell potential against the reference electrode until a second charging current is reached, - AC excitation or AC excitation over a frequency period, - second constant current charging with a third charging current until a second half-cell potential is reached against the reference electrode, - second constant voltage charging at the second half-cell potential against the reference electrode until a final charging current is reached or until a maximum constant voltage charging time is reached.

The present invention relates to a battery (10) comprising a branch (B) and a plurality of capacity units (12a-12d) interposed in series in the branch, each capacity unit having a main channel (16p) and an auxiliary channel (16s) mounted in parallel and each equipped with a switch (24p, 24s); the battery comprising, for each capacity unit, an electronic board (26a-26d) including a control unit (27a-27b) for the switches and a measurement circuitry (28a-28d) including, for each associated cell: - a differential amplifier (30) having an input connected to the positive terminal of the cell and an input connected to the negative terminal of the cell, and - two controllable current sources (32u, 32g) to pull the cell potential towards the positive voltage value or to ground. Figure for the abstract: Fig. 7

The invention relates to a method for repairing a battery system (A), wherein the battery system (A) comprises at least one cell (1) with at least one cell terminal (2) and a cell connector (3), characterized by the following steps: - Identifying and locating a defect affecting the tap and its connection, or where a foil element is at least partially separated, - Disconnecting a defective surge arrester (4) at a defined location (5), - Attaching a new probe (6) to a second contact point (7) on the cell terminal (2) and connecting it to the cell potential, and - Prepare a mounting point for a connector beforehand, if necessary. Furthermore, the invention relates to a battery system (A).

A screening gas diffusion material, which can have a porosity and which can be a layer and which can be a membrane, for use in electrolysis systems and methods, such as in an electrolyzer, permits smaller molecules, such as methanol, to pass through while excluding larger organic contaminants from reaching the catalyst surface. The screening layer minimizes the energy penalty caused by the larger organic impurities while maintaining the cell potential below the threshold where catalysts are potentially oxidized.

The invention discloses a corrosion test device and method for a steel bar in soil, and belongs to the technical field of material corrosion and protection. The corrosion test device and method for the steel bar in the soil comprise a cylinder body and further comprise a box body used for containing the soil, and a plurality of first through holes are formed in the side wall of the box body; the isolation cloth is used for preventing the soil in the box body from leaking out of the first through hole; the semipermeable membrane is used for isolating the soil from the salt solution, and chloride ions in the salt solution can penetrate through the semipermeable membrane; the cathode material block is arranged in the salt solution; a positive electrode of the power supply module is electrically connected with a steel bar buried in soil in the box body, and the power supply module is used for applying current to the steel bar; and the half-cell potential detection system is connected with the steel bar and is used for detecting the corrosion potential of the steel bar. According to the device and the method for testing the corrosion of the steel bar in the soil, electrochemical accelerated corrosion is combined, the process, the result and the influence factors of metal corrosion can be quantified, and the accuracy and the reliability of detection are improved.

A cell potential measuring device includes a base plate having insulation properties, first line disposed on the base plate, an insulation layer disposed on the base plate and covering at least a surface of the first line, a first electrode disposed on the insulation layer and being electrically connected to the first line, and a second line disposed on the base plate and a portion of which is disposed below the first electrode via the insulation layer.