Abstract: A terminal can include a battery (11), a temperature detection circuit (13), a control circuit (14) and a heating apparatus (15), wherein the control circuit detects a temperature of the battery via the temperature detection circuit, and if the temperature of the battery is detected to be less than a first threshold, the control circuit keeps a charging loop for charging the battery disconnected and controls the heating apparatus to heat the battery; and if the temperature of the battery is detected to be greater than or equal to the first threshold, the control circuit controls the charging loop to be conducted for charging the battery. A heating apparatus and a charging method for a battery are also provided.

Abstract: The disclosure is related to a quick charge battery which includes a battery cell, a cap assembly, a quick charge assembly and an insulating film. The cap assembly protrudes from the battery cell. The cap assembly includes a main body and an electrically conductive member. The electrically conductive member is located on a side of the main body away from the battery cell. The quick charge assembly is located in the main body and is located between the battery cell and the electrically conductive member. The quick charge assembly includes a circuit board and a quick charge connector. The quick charge connector is electrically connected to the battery cell. The electrically conductive member is electrically connected to the battery cell. The insulating film is sleeved on the battery cell and the cap assembly. The quick charge connector is exposed from the main body and the insulating film.

Abstract: A method for automatically selecting a recharging mode of an electric vehicle includes: identifying a first recharging mode corresponding to a duty cycle of a received pulse width modulation signal, performing a first recharge process corresponding to the identified first recharging mode, identifying a second recharging mode according to the duty cycle of the received pulse width modulation signal when the first recharge process fails; and performing a second recharge process corresponding to the second recharging mode when the second recharging mode is identified.

Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A battery charger has at least two phases and coupled switches that are controlled using switch mode power supply (SMPS) techniques. One of the phases is part of a buck-boost circuit that includes a high side switch, which is coupled between a near end of the phase and the input, and a low side switch that is coupled between a far end of the phase and ground. The far end of the phase is also coupled to a battery, through a further high side switch. A controller signals the switches into open and closed states so that the buck-boost circuit is operated in buck mode when charging the battery at a low voltage, and in boost mode when charging the battery at a high voltage. Other embodiments are also described and claimed.

Abstract: The present invention relates to a battery energy storage system including: a plurality of battery boxes provided with a plurality of battery packs; a plurality of power converter systems respectively connected to the plurality of battery boxes to selectively charge or discharge the plurality of battery boxes through alternating current supplied from an external power source device; a transformer disposed between the external power source device and the plurality of power converter systems; and a controller controlling the plurality of power converter systems to selectively charge or discharge the plurality of battery boxes.

Abstract: A charging and discharging method for a lithium secondary battery is provided, wherein, while charging or discharging the lithium secondary battery using a constant current, the charge current or allowable discharge current is modified by measuring the internal resistance of the lithium secondary battery. In the charging and discharging method for a lithium secondary battery according to the present disclosure, the charging time and charge capacity, or the discharge current amount and discharge capacity, may be appropriately harmonized, and thus the method may be usefully used as a charging method and a discharging method for a lithium secondary battery.

Abstract: Approaches for charging a battery for an electric vehicle involve obtaining battery usage metrics of the battery of the electric vehicle based upon past usage of the battery and past charging of the battery. The metrics are analyzed to determine a target state of charge (SOC) for a first type of vehicle usage and determine a charging scheme as a function of time to achieve the target SOC at a first predetermined time. The charging scheme includes a first time period and a subsequent second time period, wherein an average rate of delivering charge to the battery during the second time period is greater than an average rate of delivering charge to the battery during the first time period. The battery is charged according to the charging scheme until the battery reaches the target SOC, which is less than a maximum state of charge for the battery.

Abstract: A semiconductor device including a first buffer amplifier into which a voltage of a high potential side of one battery cell selected from plural battery cells that are connected in series is input; a second buffer amplifier into which a voltage of a low potential side of the one battery cell other than a lowermost stage battery cell is input; an analog level shifter into which a voltage output from the first buffer amplifier and a voltage output from the buffer amplifier are input; a first switch that switches a voltage input to the analog level shifter from the voltage output from the second buffer amplifier to a reference voltage; and a second switch that switches a voltage input to the first buffer amplifier from the voltage of the high potential side of the one battery cell to the reference voltage.

Abstract: An electronic device is provided, including a housing having a back surface. The device includes a rechargeable battery, a capacitor, an inductor coil connected to the capacitor, the inductor coil being disposed around an axis oriented perpendicular to the back surface, a rectifier circuit connected to the inductor coil to output a direct current (DC), a DC-DC converter connected to the rectifier circuit, configured to trickle charge the battery with current received from the rectifier circuit, a test load switchably connected to the DC-DC converter, and a feedback circuit configured to detect a voltage level of the test load and provide an indication of the voltage level.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle that is provided with a primary coil which is designed to induce a voltage in a secondary coil of the motor vehicle in order to charge the electrical energy store, and with a lifting mechanism, which is designed to move the primary coil between a stored position and a charging position. The charging device is provided with at least one heating conductor, in particular a heating wire, which is arranged on the lifting mechanism and which can be controlled by a control device of the charging device. The invention further relates to a method for operating a charging device.

Abstract: A system for differentiating short circuiting in a battery includes: a detector coupled to the battery; a monitor in communication with the detector, the monitor including a profile of a battery shorting behavior, and a comparator for matching data from the detector to the profile; and a controller for taking action based upon information from the detector. A method for detecting short circuiting in a battery includes the steps of: detecting a behavior of the battery; comparing the behavior of the battery to a predetermined battery behavior profile; determining the type of short based on the comparison; and taking mitigating action based on the determination. The system/method may monitor: temperature of the battery, heat generation from the battery, current flow through the battery, voltage drop across the battery, and/or combinations thereof. The system/method discriminates between the various battery shorting behaviors for aggressive response or passive response.

Abstract: Example implementations relate to a movable charging coil within a wristband. For example, an apparatus includes a computing device and a wristband coupled to the computing device. The wristband includes a movable carriage that is movable within the wristband. The movable carriage has a charging coil to wirelessly receive power from a charging device when the movable carriage is within a threshold distance from the charging device. The wristband also includes a connector device to send the power to the computing device.

Abstract: A charging device for inductively charging an electrical energy store of a motor vehicle that is provided with a primary coil which is designed to induce a voltage in a secondary coil of the motor vehicle in order to charge the electrical energy store, and with a lifting mechanism, which is designed to move the primary coil between a stored position and a charging position. The charging device is provided with at least one heating conductor, in particular a heating wire, which is arranged on the lifting mechanism and which can be controlled by a control device of the charging device. The invention further relates to a method for operating a charging device.

Abstract: There are provided a charge/discharge control circuit which is equipped with a differential amplifier configured to detect charging currents of a plurality of secondary batteries connected in parallel, and a charge control circuit configured to output an output signal of the differential amplifier to charge control terminals according to a reception of a control signal to permit the charging of each of the secondary batteries, and which is capable of charging the secondary batteries connected in parallel with uniform charging currents, and a battery apparatus equipped with the charge/discharge control circuit.

Abstract: A method of charging a battery includes applying a charging voltage to a lithium-ion battery for a period of time after the battery is fully charged. The battery includes a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte. The negative active material includes a lithium titanate material and has a capacity that is less than that of the positive electrode. The charging voltage is greater than a fully charged voltage of the battery, and applying the charging voltage for the period of time is sufficient to cause a zero volt crossing potential of the battery to increase to above a decomposition potential of the positive active material.

Abstract: Some embodiments are directed to a three-phase power converter for converting power between a power grid network and a battery that includes a three-phase grid transformer, a three-phase switching converter for coupling to a positive terminal of the battery, a first, second and third series inductors coupled between the three-phase grid transformer and the three-phase switching converter, a control circuit configured for controlling a first, second and third phase differences between first, second and third time-periodical power grid voltage signals provided by the grid transformer and first, second and third converter time-periodical voltage signals provided to the switching converter such that the first, second and third time-periodical power grid voltage signals and first, second and third converter time-periodical currents are in phase. The three-phase grid transformer provides electrical isolation between the power grid network and the battery.

Abstract: A controller (10) of an electronic book reader selects, as a power source for operating the electronic book reader, a capacitor (6) configured to accumulate power from a solar cell (5) upon performing a page turning operation, and a storage cell (7) upon performing an operation of downloading an electronic book.

Abstract: A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.

Abstract: A battery charging device includes: a battery housing which delimits at least one battery receiving space at least in part; at least one power electronics unit supplying a charging voltage; and an electronics housing which (i) is formed separately from the battery housing, and (ii) accommodates the power electronics unit in at least one of water-protected manner and dust-protected manner.