A temperature raising device includes an alternating current (AC) generation circuit including a first capacitor having a first end connected to a positive electrode side of a power storage having an inductance component, a second capacitor having a first end connected to a negative electrode side of the power storage, a parallel switch unit configured to connect the first capacitor and the second capacitor to the power storage in parallel, and a series switch unit configured to connect the first capacitor and the second capacitor to the power storage in series, and a controller configured to alternately switch the state between a first state in which the parallel switch unit is in a conductive state and the series switch unit is in a non-conductive state and a second state in which the parallel switch unit is in the non-conductive state and the series switch unit is in the conductive state.

Energy storage systems for charging an electronic device and methods of operating the same are disclosed. The energy storage system includes an AC bus, a DC bus, a plurality of batteries, a plurality of breakers, a plurality of inverters, and a controller operatively coupled with the batteries and the breakers. The method includes calculating, by the controller, an amount of power necessary to charge the electronic device; operating, by the controller, the breakers such that the batteries of a discharging station is configured to discharge through a charging station; and charging the electronic device using the batteries.

A method for powering an electric vehicle including an electrochemical battery and one or more supercapacitor batteries includes determining self-discharge rate data for the one or more supercapacitor batteries and, in response to the self-discharge rate data satisfying at least one threshold condition, notifying a user to charge the one or more supercapacitor batteries, otherwise performing operations including: measuring current within a first path connecting the electrochemical battery to the electric vehicle; storing data representing the measured current in a database; determining a current use pattern from stored current data in the database; and in response to the current use pattern satisfying a first switching condition, switching in the one or more supercapacitor batteries in place of the electrochemical battery.

A power control system according to one embodiment of the present disclosure includes: a first converter configured to convert a voltage of a high-voltage battery into a first voltage; a first battery; a first power distributor configured to distribute power of the first converter to the first battery and first voltage loads; a second converter configured to convert the voltage of the high-voltage battery into a second voltage; a second battery; a second power distributor configured to distribute power of the second converter to the second battery and second voltage loads; and a bidirectional converter connected between the first power distributor and the second power distributor. Here, each of the first power distributor and/or the second power distributor includes at least one switch and controls the at least one switch to be turned on or off in response to occurrence of a set failure state.

An apparatus includes a storage battery configured to be charged from an alternating current (AC) supply and an AC to direct current (DC) converter to convert the AC supply from AC to DC, such that DC power is output to the storage battery. The apparatus further includes a connector for connecting to a motive power battery. While the motive power battery is connected to the connector, the apparatus is configured to supply DC power to the motive power battery from at least one of the storage battery or the AC to DC converter to charge the motive power battery. While the motive power battery is not connected to the connector, the apparatus is configured to supply DC power to the storage battery to charge the storage battery.

Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.

A battery module includes battery stack including a plurality of stacked battery cells, a pair of end plates disposed at both end parts in a stacking direction of battery stack, bind bar in which the pair of end plates are coupled, and electronic circuit block mounted with voltage detection circuit that detects a voltage of battery cells. Electronic circuit block is disposed on an outer surface of both end plates disposed at both end parts of battery stack, and electronic circuit block is connected to battery cells via voltage detection line.

A power allocation method includes monitoring at least one first device that can be recharged by a vehicle, monitoring at least one second device that can be electrically powered by the vehicle, and adjusting a charging of the at least one first device based on an operation of the at least one second device.

A system, apparatus, and method may operatively couple machines, each powered, at least in part by an energy accumulator, together to charge one machine using power of another machine. On condition that a first remaining amount of power in a first machine is less a first total amount of power needed to complete a first task and charging of the first machine takes priority over completion of a second task to be completed by a second machine, the second machine can travel to the first machine and charge a first energy accumulator in the first machine.

This disclosure discloses a power supply apparatus, a power supply system, and a method. The apparatus includes: a power supply bus connected to an output end of a voltage conversion unit and a low-voltage battery through separate bidirectional isolation units. The bidirectional isolation units control connection and disconnection between the bus and the voltage conversion unit or the low-voltage battery. The bidirectional isolation unit includes two switches connected in series. The two switches connected in series each are connected in parallel to one diode, and the two diodes are disposed back to back. The power supply apparatus further includes another circuit, where the circuit is electrically connected to the bus, and is configured to supply power to a load. Solutions in embodiments are applied to new energy vehicles such as an electric vehicle and a hybrid electric vehicle, to improve functional safety performance of power supply of the vehicles.