11 results about "Voltameter" patented technology

The present application discloses a battery system and a power supply system. The battery system comprises a processing circuit, a constant current source and a plurality of battery packs; each battery pack comprises at least one sampling resistor; the sampling resistors of all the battery packs are connected in series across the constant current source; voltages across the constant current source can directly reflect corresponding voltage protection values when different numbers of battery packs are connected in series; the processing circuit is connected across the constant current source, and uses the voltage across the constant current source as a voltage protection value to compare same with a voltage after the plurality of battery packs are connected in series. According to the battery system provided by the present application, the voltage protection value is directly represented by means of the voltage across the constant current source, and there is no need for an installation worker to open a switch box on site to adjust the voltage protection value by means of a DIP switch, thereby achieving convenience and rapidness, improving the safety, and reducing personnel costs.

An ammeter measures current when a storage battery having a plurality of single batteries connected in series is charged or discharged. A voltmeter measures total voltage of the storage battery. A calculation device calculates dV / dt obtained by differentiating the total voltage with respect to time on the basis of a relationship between the total voltage and charging time or discharging time, separates a characteristic peak obtained by a dV / dt curve into peaks for the respective single batteries, and diagnoses soundness of the storage battery on the basis of the separated peaks.

The application relates to the technical field of lead-acid battery shell detection devices, and provides a lead-acid battery shell detection mechanism, which comprises a detection seat, a detection assembly is arranged on the detection seat, the detection assembly comprises first probes and second probes, the first probes are electrically connected with a constant-current power supply, the first probes are electrified to welding points, the second probes abut against the welding points and are electrically connected with a voltmeter, and the voltage of the welding points is tested. Based on the mechanism, the welding points after wall penetration welding can be detected, and whether there is lead explosion or impurity residue can be judged.

This invention provides a voltage measuring device for the CPR battery of a WD-32 stability vehicle, relating to the field of CPR battery voltage measurement technology. The device includes a voltmeter installed on an NPR battery for measuring the voltage of the CPR battery; and a pressure monitoring unit connected to the voltmeter for acquiring the CPR battery voltage data from the voltmeter and performing pressure monitoring analysis to generate pressure monitoring result data. This device monitors the CPR battery voltage in real time by installing a voltmeter on the CPR battery, ensuring the normal operation of power supply facilities and equipment related to the CPR battery.

This invention discloses a method and system for optimizing the performance control of solid-state batteries. The method collects real-time voltage, surface temperature, internal stacking pressure, and interfacial impedance spectrum, inputting these data into an electrochemical-mechanical coupling model that includes an interfacial stress tensor field and a dynamic correction factor. It calculates the polarization characteristics and the trend of interfacial porosity changes, generating a dynamic charge rate curve, a dynamic discharge depth limit, and a variable mechanical stacking pressure adjustment target value based on Pareto optimality. The frequency and duty cycle are dynamically adjusted through variable-frequency pulse charging, combined with active stacking pressure adjustment to dynamically compensate for interfacial contact pressure. This invention achieves closed-loop dynamic control of the solid-solid interface, solving the problem of not being able to detect and actively intervene in interface degradation, and significantly improving the cycle life and energy efficiency of solid-state batteries.

The present invention relates to a battery treatment method, which relates to a method of treating a waste battery, the method comprising: a step of preparing a battery; a step of measuring a voltage of the battery; a step of subjecting the battery to a low-temperature treatment at a temperature below a minimum temperature according to the voltage of the battery; and a step of crushing the battery, the minimum temperature satisfying the following formula 1. The battery treatment method is the minimum temperature satisfying the following formula 1, <Formula 1> Minimum temperature = 21.42857 + (-21.1255) x Voltage + (-0.69264) x Voltage 2 ± 0.5 In the above formula 1, the voltage represents a battery cell reference voltage of the battery.

Provided is a battery pack capable of conveniently diagnosing, by itself, the degree of degradation of the internal resistance of a battery. A battery pack includes: a battery; contactors; an AC constant current source supplying an AC constant current with a predetermined frequency to the battery; an AC voltmeter detecting the value of a voltage between a positive electrode and a negative electrode when the AC constant current is supplied to the battery; and a control unit supplying an AC constant current to the battery by controlling the AC constant current source, calculating the internal resistance of the battery on the basis of the value of the voltage detected by the AC voltmeter, and diagnosing the degree of degradation of the battery on the basis of the internal resistance.

Method for charging a traction battery (42) of a motor vehicle (40) with an electric traction motor (41) by means of a stationary charging station (20), wherein the charging station (20) comprises: a charging station charging controller (22) for monitoring and controlling the charging process, a charging voltage converter (24) for providing a DC charging station voltage (UL) fed into charging lines (L1, L2), an insulation tester (26) for testing the electrical insulation of the charging leads (L1, L2) against earth potential (G), and a charging station-side charging plug (28), wherein the charging voltage converter (24) provides a fixed maximum charging station voltage (ULMAX) for charging the traction battery (42), which can be a low voltage value (U1) or a high voltage value (U2), wherein the motor vehicle (40) has: a charging controller (50) for monitoring and controlling the charging process, a vehicle-side charging plug (32), the motor vehicle traction battery (42) which has a technical charging voltage level (UM) with the high voltage value (U2), a charging voltage adjuster (44) by which the charging station voltage (UL) is adapted as required to the technical charging voltage level (UM) of the traction battery (42), a protective relay (60) assigned to the charging lines (L1, L2) between the traction battery (42) and the charging plug (32), and an electrical voltage meter (62) associated with the charging lines (L1, L2) between the protective relay (60) and the charging plug (32), with the procedure steps for connected charging plugs (28,32): Registration of a charging process by the vehicle charging control (50) to the charging station charging control (22) with the high voltage value (U2) as the requested maximum charging voltage (UR), With the vehicle protection relay (60) open: the charging station charging controller (22) controls an insulation test performed by the charging station insulation tester (26) for an insulation test voltage (UI) that corresponds to the requested maximum charging voltage (UR) or the maximum charging station voltage (ULMAX) if the latter is lower than the requested maximum charging voltage (UR). Measurement of the insulation test voltage (UI) by the voltmeter (62), If the measured insulation test voltage (UI) corresponds to a lower voltage value (U1) than that of the technical charging voltage level (UM): The vehicle charging control (50) registers a charging process with the charging station charging control (22) with the low voltage value (U1) as the new requested charging voltage (UR) and adjusts the charging voltage adaptor (44) to a charging station voltage (UL) corresponding to the low voltage value (U1).

A system for measuring carburization may comprise an electrified cracking electrified by a electric current; and first and second thermocouples separated by a length along the electrified cracking coil. Each thermocouple may comprise a first wire, a second wire, wherein the first wire and the second wire are joined at a junction proximate the electrified cracking coil, an electrically conductive sheath surrounding the first and second wires, wherein the electrically conductive sheath is in contact with the electrified cracking coil, a thermocouple sensor coupled to the first wire and the second wire opposite the junction, the thermocouple sensor configured to determine a temperature from a voltage difference between the first wire and the second wire, and a voltmeter electrically coupled to the electrically conductive sheath and configured to determine a voltage of the electrified cracking coil at a contact point between the electrically conductive sheath and the electrified cracking coil.