A charging control method includes: monitoring a real-time temperature of the battery during charging a battery with a first real-time charging current; reducing the first real-time charging current to a second real-time charging current at a specified current reduction rate, when the real-time temperature of the battery is greater than a first temperature threshold, the second real-time charging current being a real-time charging current corresponding to that the real-time temperature of the battery is less than the first temperature threshold; and charging the battery according to the second real-time charging current. As such, the temperature rise problem during high-current high-power fast charging can be alleviated, and excessive fluctuations due to instantaneous current adjustment can be prevented from affecting the charging rate thereby improving user experience.

A temperature controlled enclosure that includes a temperature control device for controlling the temperature within an internal cavity of the temperature controlled enclosure. The temperature controlled enclosure also includes one or more charging ports for receiving and charging a battery pack. A controller within the temperature controlled enclosure controls the temperature within the internal cavity to a predetermined or desired temperature (e.g., 20° C.). When a battery pack is received in the one or more charging ports, the temperature of the battery pack can be determined. If, for example, the temperature of the battery pack is below 0° C., the battery pack is allowed to warm up inside the temperature controlled enclosure before the battery pack is charged.

A shutdown method applicable to a terminal having a rechargeable battery, the method includes: determining a first impedance and a second impedance of the rechargeable battery, wherein the first impedance is an impedance determined based on a current temperature of the rechargeable battery, and the second impedance is an impedance determined based on a current number of charge times of the rechargeable battery; determining a target impedance as a larger impedance value from the first impedance and the second impedance; determining a shutdown voltage of the terminal based on a preset open circuit voltage of the rechargeable battery, the target impedance and a current operating current of a charging circuit; and controlling the terminal to shut down, when an operating voltage of the rechargeable battery is decreased to the shutdown voltage.

This application provides a battery charging control method and device. Voltages of N cell units in an M.sup.th sampling period are obtained, and a voltage of the battery at each sampling moment among K sampling moments in said sampling period is calculated. Charging of the battery is stopped when the voltage of the battery increases monotonically in the M.sup.th sampling period and a trend of a fitting curve of the voltage of at least one cell unit among the N cell units in said sampling period is not rising.

A base station is disclosed that is configured for use with a UAV. The base station includes: an enclosure with an outer housing that defines a roof section and an inner housing that is connected to the outer housing; one or more heating elements that are supported by the enclosure and which are configured to heat the roof section; one or more fiducials that are supported by the enclosure; an illumination system that is supported by the enclosure and which is configured to illuminate the one or more fiducials; and a visualization system that is supported by the enclosure.

A vehicle includes an electrified propulsion system powered by a traction battery over an electrical distribution system (EDS) and a controller programmed to monitor at least one of a current flow and a temperature at a plurality of locations throughout the EDS. The controller is also programmed to implement at least one mitigation action over a predetermined time window in response to detecting a filtered current value exceeding a threshold.

A system for cycling battery cells with pressure regulation is disclosed. The system comprises supports for receiving the battery cells which insert in a clamping arrangement having jaws moving one with respect to the other by an actuator operated by a controller in order to apply a pressure in a pressure application axis to the cells. A pressure sensor measures the pressure applied to the cells while a cycling module connected to the cells performs their cycling and measures their charge and discharge level. A programmable processing unit ensures a control of the pressure and, if desired, the temperature applied to the cells according to a programmed cycling mode and records data representative of the pressure and other cycling measurements.

The present invention relates to a testing method for the thermal contact between a temperature sensor (50) and a battery cell (10) of a battery module (30), wherein the method comprises the steps of measuring a temperature T.sub.1 of the temperature sensor (50) at a time point t.sub.1, heating the temperature sensor (50) for a defined time (t.sub.2−t.sub.1), measuring a temperature T.sub.2 of the temperature sensor (50) at a time point t.sub.2 and/or a temperature T.sub.3 of the temperature sensor (50) at a time point t.sub.3, and determining the thermal contact between the temperature sensor (50) and the battery cell (10) based on at least one of the temperature differences ΔT.sub.2,1=(T.sub.2−T.sub.1), ΔT.sub.3,1=(T.sub.3−T.sub.1) and/or ΔT.sub.3,2=(T.sub.3−T.sub.2). The invention further relates to a testing circuit (60) for a temperature sensor (50) of a battery module (30), comprising a thermistor (61) with a first node (67) connected to a first supply voltage (65) and a second node (68) connected to ground (69), a switch (63) interconnected between the first node (67) of the thermistor (61) and a second supply voltage (66), and an analog-to-digital converter (64) connected in parallel to the thermistor (61). The invention further relates to a cell supervision circuit (40) for a battery module (30), comprising a circuit carrier (45), a testing circuit (60) according to any one of the claims 1 to 10, and a temperature sensor (50) surface mounted to the circuit carrier (45) and comprising a measuring head (51) with a thermistor (61) configured to be brought into thermal contact with a battery cell (10) of the battery module (30).

A battery includes a case, in which a battery module, a battery management system and a junction terminal block are received. The battery module has cell blocks electrically connected in series, and each of the cell blocks has electrodes. The junction terminal block has a plurality of junction terminals to be electrically connected to the electrodes of the cell blocks through a plurality of junction wires respectively. The battery further has an external connector having a plurality of external terminals to be electrically connected to the junction terminals of the junction terminal block through a plurality of external wires. The external terminals of the external connector are electrically connected to the cell blocks through the external wires, the junction terminals of the junction terminal block and the junction wires respectively, so that all the cell blocks are able to be charged individually through the external connector.

In general, the present disclosure is directed to forming lithium ion battery (LIB) cells with structure and chemistry that achieves formation of a solid electrolyte interphase (SEI) layer that allows for operating in relatively high ambient temperature environments, e.g., up to and exceeding 60° C., while significantly reducing self-discharge amounts, e.g., relative to other LIB cells formed with SEI layers measuring about 1-2 nanometers in thickness. For example, one non-limiting embodiment of the present disclosure enables a self-discharge amount for a LIB cell of 10% or less over a four (4) week period of time when operating at an ambient temperature of 60 degrees Celsius.