The battery control circuit includes a first inductor, a first switch tube, a second switch tube, a first diode, and a second diode. A first terminal of the first switch tube and a cathode of the first diode are both coupled to the positive electrode of the battery pack, and a second terminal of the first switch tube is coupled to a terminal of the first inductor and a cathode of the second diode. An anode of the first diode is coupled to another terminal of the first inductor and a first terminal of the second switch tube, and a second terminal of the second switch tube and an anode of the second diode are both coupled to the negative electrode of the battery pack. The first switch tube and the second switch tube are simultaneously turned on or turned off.

An electrochemical battery system includes at least one electrochemical cell, a thermal control system operably connected to the at least one electrochemical cell, a memory in which a physics-based model of the at least one electrochemical cell is stored and in which program instructions are stored, and a controller operably connected to the at least one electrochemical cell, the thermal control system and the memory. The controller is configured to execute the program instructions to identify a first requested operation, obtain a first generated target temperature which is based on the physics-based model and the identified first requested operation, and control the thermal control system based upon the obtained first target temperature while controlling the at least one electrochemical cell based upon the identified first requested operation.

An uninterruptible power system and an operation method thereof are provided. The uninterruptible power system comprises a DC-AC conversion circuit, a plurality of switches, a plurality of sensing units, a plurality of output ports and a control unit. Each output port is electrically coupled to an output terminal of the DC-AC conversion circuit sequentially through one of the sensing units and one of the switches. The control unit is configured to define members of at least one group from the output ports according to a system setting, and define which members of each group are non-critical output ports according to the system setting. The control unit is further configured to set, according to the system setting, at least one condition for all non-critical output ports in each group to simultaneously stop supplying power, and to accordingly control the operations of the corresponding switches.

The present application relates to a battery charging method and charging system which can prevent degradation of a battery and enhance the lifetime characteristics thereof. In one aspect, the charging method includes charging a battery at a first C-rate higher than a reference C-rate, wherein the C-rate represents charge or discharge current/a rated capacity of the battery. The charging method also includes charging the battery at a second C-rate lower than the reference C-rate. The charging of the battery at the first C-rate includes at least one rest period for temporarily stopping the charging of the battery.

Charging an accumulator having an energy storage cell, a data interface and a wake-up circuit. A charging apparatus contains a data interface, a controller, a timer and a switch apparatus. The data interfaces connected to one another via a communication line for differential communication between the accumulator and charging apparatus. Setting the timer to a predetermined period of time; setting the control electronics of the accumulator to a deactivation mode; sending at least one signal from the charging apparatus to the accumulator via the communication line after the predetermined period of time has elapsed; activating the wake-up circuit for activating control electronics by detecting a voltage value from the communication line, the voltage value is consistent with either the dominant or recessive state of the communication line; setting the control electronics to an activation mode; and requesting or releasing a charging current from the charging apparatus using the accumulator.

The present application discloses a charging method, an apparatus, a device, a medium, a battery management system and a charging pile. The method includes: acquiring a charging demand parameter set by a user; calculating, according to the charging demand parameter and acquired actual operation state information of a battery, a target charging scheme for charging the battery; transmitting, according to the target charging scheme, a first charging request to a charging device, so that the charging device charges the battery according to the first charging request. According to the charging method, the apparatus, the device, medium, the battery management system and the charging pile provided in the embodiments of the present application, personalized smart charging can be achieved for different users.

A device for controlling battery operation includes a battery cell, a thermal cutoff, and a battery management system. The thermal cutoff is coupled in series between the battery cell and a system load of the device. The thermal cutoff has at least three terminals. A first terminal of the thermal cutoff is electrically-coupled to the battery cell and a second terminal of the thermal cutoff is electrically-coupled to the system load. The thermal cutoff includes a permanent failure mechanism having an open state and closed state wherein the closed state allows electrical communication between the first terminal and the second terminal. The battery management system is electrically-coupled to a third terminal of the thermal cutoff. The permanent failure mechanism permanently switches to the open state in response to an electrical signal from the battery management system.

A battery charging apparatus includes a first converter having an input coupled to an input voltage bus and an output coupled to a first battery, and a second converter having an input coupled to the input voltage bus and an output coupled to the first battery and a second battery through a first bidirectional current blocking switch and a second bidirectional current blocking switch, respectively.

The power supply device is provided with: a battery pack that comprises a plurality of battery units each of which includes a battery, a first terminal and a second terminal; a capacitor connected in parallel with the battery pack; and a current adjusting circuit that includes a load and a switching device for controlling a current to the load and adjusts a current from the capacitor to the battery pack. When a battery that has reached an upper limit voltage is detected during charging the battery pack, between control for closing a first path that connects the first terminal to the positive side of the battery and control for opening a second path that connects the first terminal to the second terminal and negative side of the battery, the power supply device causes the current to flow to the load to adjust the current flowing to the battery pack.

An electric power supply system includes an alternating current electric power supply circuit that converts direct current electric power of a first direct current sweep unit including a battery string into alternating current electric power using a first inverter and outputs it, and an alternating current sweep unit that includes a U-phase battery string, a V-phase battery string, and a W-phase battery string that are Y-connected. Output densities of batteries of the battery string are higher than output densities of batteries of the alternating current sweep unit. Alternating current electric power is output from the alternating current sweep unit and the alternating current electric power supply circuit, and after a predetermined period elapses, the output of the alternating current electric power from the alternating current electric power supply circuit is stopped.