Abstract: A method for recognizing contacting errors in a rechargeable battery pack. Each rechargeable battery of the rechargeable battery pack is connected in parallel to at least one further rechargeable battery of the rechargeable battery pack. The method includes: applying at least one current to the rechargeable battery pack; ascertaining at least one voltage that is present at the rechargeable battery pack, as a function of the applied current; determining at least one parameter based on the ascertained voltage; and comparing the parameter to a comparison variable.

Abstract: A battery state estimating apparatus including a voltage measuring unit configured to measure a voltage of a battery cell and measure an open circuit voltage (OCV) of the battery cell whenever the measured voltage reaches a reference charge voltage, and a control unit configured to receive the OCV measured by the voltage measuring unit, calculate a voltage fluctuation rate based on a result obtained by processing the received OCV, determine a voltage increase and decrease pattern based on the calculated voltage fluctuation rate and pre-stored voltage fluctuation rate data, and determine a degradation acceleration degree of the battery cell according to the determined voltage increase and decrease pattern.

Abstract: Provided is an electronic electricity meter. Since inductive power from a magnetic field surrounding a transmission line is generated using a current transformer, and the inductive power is stored to be used as a driving power source for the electricity meter, the present invention can prevent power from being consumed by the electricity meter in an unloaded state. In addition, the present invention can protect the electricity meter from a surge voltage, lightening, or the like by insulating the transmission line and internal components from each other. In addition, when a power cut-off instruction is received from the electrical energy measurement server, the present invention can cut off power supply to a load by turning off a switch in a power source cut-off unit installed on the transmission line, and when a power supply instruction is received from the server, can remotely control power supply to the load.

Abstract: A position detection device includes a magnetic scale and a magnetic sensor. The magnetic scale includes a plurality of magnets arranged along a first reference direction. The magnetic sensor includes a plurality of detectors that detect a composite magnetic field. The plurality of detectors are each arranged to satisfy AG=N(M?W)/(n?1), where n is the number of magnets of the magnetic scale, M is a distance from a first end to a second end, W is the width of each of the plurality of magnets and is greater than 0 and less than or equal to M/n, AG is a gap between each of the plurality of magnets and each of the plurality of detectors in a second reference direction, and N is a number greater than or equal to 0.4 and less than or equal to 2.

Abstract: A battery tester includes a pair of battery clamps, a testing unit, and a pair of holsters. Each battery clamp is configured to connect to a terminal of a battery. The testing unit includes testing circuitry that is connected to the battery clamps, and is configured to perform one or more battery tests on a battery connected to the battery clamps. Each of the holsters is attached to a housing of the testing unit, and is configured to receive and hold one of the battery clamps.

Abstract: Provided is an image heating apparatus comprising: a first rotating member; a second rotating member that forms a nip with the first rotating member so as to nip the recording material therebetween; a heater that heats the nip; a conductive sheet member that is disposed so as to overlap with a part of the heater; and a restricting member that restricts relative positions between the sheet member and the heater. The restricting member is configured so as to restrict a relative movement between the sheet member and the heater in a first direction, which is a direction where the sheet member overlaps with a part of the heater, and to allow the relative movement in a second direction which is perpendicular to the first direction. A reinforcing land, that joins the heater and the sheet member, is disposed in a position that is electrically isolated.

Abstract: A sensor unit disclosed herein is a temperature sensor unit to be attached to an energy storage device. The temperature sensor unit includes an FPC to be positioned on an energy storage device body, a temperature sensor connected to a detection line of the FPC, a housing disposed on the FPC and covering the temperature sensor, and a biasing member elastically and deformably held in the housing and configured to bias the lower housing of the housing toward the energy storage device body by elastic restoring force to bring the temperature sensor into contact with the energy storage device body with the FPC therebetween.

Abstract: A battery monitoring device includes a first reference resistor disposed in a path different from a path of current flowing from a battery to a load; a transistor for passing current from the battery to the first reference resistor; and an integrated circuit. The integrated circuit includes: a current measurement unit that measures a first current flowing through the first reference resistor; a voltage measurement unit that measures a first voltage of the battery; and a first calculation unit that calculates an AC impedance of the battery based on the first current measured and the first voltage measured.

Abstract: Methods for determining a maximum duration of use of a battery, include: selecting a period of use of the battery; obtaining values of factors of degradation of the battery during the period of use of the battery selected during the selection step; determining at least one indicator of ageing of the battery on the basis of the degradation factor values obtained in the step of obtaining said values; and identifying intervals of variation of the degradation factors during said period of use, each ageing indicator being associated with actual variation intervals which each have a minimum value and a maximum value of said factors used during the determination step; and a step of predicting the maximum duration of use on the basis of the variation intervals obtained in the step of identification, the at least one ageing indicator and the operating limits of the battery.

Abstract: A combination includes: an electricity conducting element and a connector cable. The electricity conducting elements includes: a body of insulating material; an electrical conductor extending through the body; at least one passive electrical sensor embedded or integrated in the body of insulating material; and at least one shielded connector with one or more terminals arranged on an outer surface of the body, the at least one shielded connector being electrically connected to the at least one passive electrical sensor. The connector cable includes: a first shielded connector with one or more terminals for connecting with the at least one shielded connector; a second shielded connector with one or more terminals for connecting with an appliance or a further connector cable; and electrical components arranged closely to the first shielded connector and electrically connected to the terminals of the first shielded connector.

Abstract: A microelectronic device has a common terminal transistor with two or more channels, and sense transistors in corresponding areas of the channels. The channels and the sense transistors share a common node in a semiconductor substrate. The sense transistors are configured to provide sense currents that are representative of currents through the corresponding channels. The sense transistors are located so that a ratio of the channel currents to the corresponding sense currents is less than a target value of cross-talk. The microelectronic device may be implemented without a compensation circuit which provides a compensation signal used to adjust one or more of the sense currents to reduce cross-talk. A method of forming the microelectronic device, including estimating a potential distribution in the semiconductor substrate containing the common node of the common terminal transistor, and selecting locations for the sense transistors based on the estimated potential distribution, is disclosed.

Abstract: A degradation-determination system includes at least four strain gauges that are installed on a principal surface of a lithium-ion battery and each of which is configured to detect pressure of a battery surface at a corresponding installation position, and a degradation determining unit configured to determine degradation of the lithium-ion battery based on measured values at the strain gauges. The degradation determining unit is configured to estimate a maximum expansion position where volume expansion is maximal in a region defined by the strain gauges, of the surface of the lithium-ion battery.

Abstract: An analog matching filter includes a first plate, a second plate coupled with the first plate and separated from the first plate via a spacer, and a replicate matching material fixed to an inside surface of the first plate. A conductive plate or sheet is fixed to an inside surface of the second plate. An electrical circuit connects the first plate to the conductive plate or sheet. The replicate matching material and the conductive plate or sheet generate an opposite polarization pattern carried by the electrical circuit that is based on a polarization pattern of a to-be-detected entity according to a spatial gradient of the to-be-detected entity local electric field distribution.

Abstract: A method and system for monitoring a non-rechargeable battery of an IoT device are described. Voltage values of the non-rechargeable battery when a load is applied to the non-rechargeable battery are determined over a first interval of time. Based at least in part on these voltage values a determination of whether a voltage of the non-rechargeable battery has decreased for more than a predetermined threshold is performed. In response to determining based at least in part on the voltage values that the voltage of the non-rechargeable battery has decreased for more than the predetermined threshold, a prediction of an end of life parameter value for the non-rechargeable battery is performed, and the end of life parameter value is transmitted to an electronic device of an administrator of the IoT device.

Abstract: A cabinet box comprises a plurality of independent, explosion-proof chambers. A battery wiring assembly for receiving and testing a battery is attached to an inner wall of an explosion-proof door, and an electrical connector is provided on an outer wall of the door. The assembly is placed inside a chamber, and the door seals the chamber. The temperature in each chamber is controlled independently, allowing batteries to be tested simultaneously at different temperatures. An air-circulating temperature-control module can be in a chamber, or a temperature controller with a refrigeration sheet can be integrated with the battery wiring assembly for direct battery contact. Separate, independent explosion-proof chambers effectively eliminate the possibility of a battery explosion in one chamber causing a chain-reaction explosion in another chamber. Modularity allows damaged parts to be replaced easily. An external battery testing machine can connected to the connector on each door.

Abstract: Provided is a sensor including a first bus bar, a second bus bar, and a shunt resistor including a shunt resistor body part whose one end portion is bonded to the first bus bar and the other end portion is bonded to the second bus bar and a detection terminal extending from the shunt resistor body part.

Abstract: A method is described for determining the capacity of an electrical energy storage unit, which method comprises the steps: a) determining a first capacity value of the electrical energy storage unit using a first mathematical model based at least on an operating time and/or on a charging throughput of the electrical energy storage unit; b) determining a second capacity value of the electrical energy storage unit using a second mathematical model based at least on a second charging throughput value of the electrical energy storage unit and on a state-of-charge difference, which is obtained from the states of charge at two different time instants; c) obtaining a correction factor for determining a capacity value using the first mathematical model on the basis of the determined first capacity value and the determined second capacity value; d) determining a third capacity value of the electrical energy storage unit using the first mathematical model based at least on the obtained correction factor and on the o

Abstract: An apparatus for estimating a state of a secondary battery, connectable to a positive electrode lead, a negative electrode lead, a first measuring lead, and a second measuring lead in the secondary battery, including: a terminal case including: inner terminals contactable with the positive electrode lead, the negative electrode lead, the first measuring lead, or the second measuring lead on a first surface of the terminal case, and outer terminals respectively electrically connectable to the inner terminals on a second surface facing the first surface of the terminal case, a voltage measuring unit electrically connected to at least two of the outer terminals, and measuring a potential difference between the first and the second measuring lead, and a control unit estimating a state of health of the secondary battery based on the potential difference between the first measuring lead and the second measuring lead.

Abstract: According to an aspect, a battery system includes a current sensor configured to measure a current that charges or discharges a battery, a voltage monitor configured to measure a cell voltage of the battery, a state-of-charge (SoC) calculation engine configured to calculate an SoC value, and an energy calculation engine configured to compute charge energy loss of the battery for a sampling period based on the current, cell voltage, and the SoC value and compute a capacity degradation metric based on the charge energy loss and reference charge loss of a reference battery. The energy calculation engine is configured to transmit, via an interface, the capacity degradation metric to a battery manager of a device.

Abstract: The present disclosure relates to a method and apparatus for accurately detecting an operating status of a battery in a battery system, where the method includes determining a charging profile of a battery in a battery system, identifying a constant voltage and a corresponding constant current in a charging cycle of the charging profile, estimating at least one of a decay constant or an internal resistance associated with the battery, using at least one of the constant voltage or the constant current, comparing the decay constant with a first threshold value or comparing the internal resistance with a second threshold value, and detecting an operating status of the battery to be faulty or healthy, based on the comparison.