13 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.

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.

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.

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.

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).