A battery charging system of an electronic device includes: a battery having a first nominal voltage and including: battery cells each having a second nominal voltage that is less than the first nominal voltage; and electrical connectors that electrically connect ones of the battery cells to provide the battery with the first nominal voltage; a first charge port configured to electrically connect to a first type of connector; a charging module configured to: receive power via the first charge port; and when a voltage of the received power is less than the first nominal voltage at least one of: charge ones of the battery cells individually; and charge groups of two or more of the battery cells.

According to one aspect of the present disclosure, an energy storage system includes one or more power sources, one or more energy storage components, and one or more solid state circuit breakers disposed between the one or more power sources and the one or more energy storage components such that electrical power is exchanged between the one or more power sources to the one or more energy storage components through the one or more solid state circuit breakers. The energy storage system also includes a controller configured to operate the one or more solid state circuit breakers to control current exchanged with the one or more energy storage components and protect the one or more energy storage components from the one or more power sources during a fault condition.

A battery assembly and a control unit for aiming at outputting a target voltage during charging or discharging and a method, a battery assembly and a control unit for maintaining a target voltage of a battery assembly during charging or discharging are disclosed. The battery assembly (100) comprises a first battery module (110) configured to receive a first signal representing a first voltage to be output over the first battery module (110), wherein the first signal is configurable to represent a range of voltages capable of being output over the first battery module (110). Moreover, the battery assembly (100) comprises a plurality of second battery modules (160-180). Each second battery module (160, 170, 180) of the plurality of second battery modules (160-180) is configured to receive a respective second signal, representing a respective configuration, which indicates whether said each second battery module (160, 170, 180) is to be switched-on or bypassed.

A battery control unit includes a plurality of switching units, a first controller, and a plurality of bidirectional voltage converters including a ground terminal, a first, and a second input-output terminal. Each of a plurality of battery packs connected in parallel to each other includes a plurality of batteries connected in series with each other. The plurality of switching units are disposed corresponding to the plurality of batteries respectively, and are configured to switch between a connected state where a corresponding battery among the plurality of batteries is connected in series with non-corresponding battery among the plurality of batteries and a non-connected state where the corresponding battery is disconnected from series connection with the non-corresponding battery.

Systems and techniques that facilitate smartcell battery architectures and methodologies are provided. In various embodiments, a battery can comprise a positive terminal and a negative terminal. In various aspects, the battery can further comprise a set of smart battery cells that are serially coupled between the positive terminal and the negative terminal and that respectively comprise full-bridges. In various instances, the full-bridges can have charge states, discharge states, and/or by-pass states. When some of the set of smart battery cells have full-bridges in the charge state, and when others of the set of smart battery cells have full-bridges in the discharge state or by-pass state, the battery can be charged by a supplied voltage that is less than the sum of individual voltages of all of the set of smart battery cells.

A power supply system includes an alternating current sweep unit and a first power supply circuit, and each of a U-phase battery string, a V-phase battery string, a W-phase battery string, and a first battery string includes a plurality of battery circuit modules connected in series, and each of the battery circuit modules includes a battery, output terminals, a first switch, and a second switch.

A device for converting an input DC voltage into an output DC voltage having a predetermined value, includes a set of elementary components comprising: an input voltage source; two output nodes; and a plurality of energy-storing elements, each consisting of one battery or of a plurality of batteries connected in series or in parallel. The converting device further comprises a switching matrix, configured to connect the elementary components to one another in a periodic cycle composed of a plurality of phases so that, for each cycle: Each phase is associated with one different connection configuration chosen so that, in each energy-storing element, the amount of charge at the start of the cycle is equal to the amount of charge at the end of the cycle.

Disclosed herein is a switch assembly electrically couplable to a rechargeable power storage device (PSD). The switch assembly includes an electrical input A, an electrical output B, and first and second conduction paths there between, passing through, and circumventing, the PSD, respectively. A positive polarity of the PSD points from A to B. The switch assembly is switchable between: (i) a state, wherein current is capable of flowing from A to B simultaneously through the first and second conduction paths but is incapable of flowing from B to A the second conduction path, (ii) a state, wherein current is capable of flowing between A and B through the second conduction path but current flow through the first conduction path is blocked, and (iii) a state, wherein current is capable of flowing between A and B through the first conduction path but current flow through the second conduction path is blocked.

A secondary battery pack includes: a first battery; a second battery; a third battery including positive, negative and bipolar terminals; a first connector electrically connecting a negative terminal of the first battery and the positive terminal of the third battery; and a second connector electrically connecting a positive terminal of the second battery and the negative terminal of the third battery. The third battery includes bipolar electrodes individually located in the spaces between positive electrodes and negative electrodes neighboring each other, the bipolar electrodes having an intermediate electrode potential between the positive electrode and the negative electrode; an electrolyte; a positive-electrode connection member electrically connecting the positive terminal of the third battery and the positive electrodes; a negative-electrode connection member electrically connecting the negative terminal and the negative electrodes; and a bipolar-electrode connection member electrically connecting the bipolar terminal and the bipolar electrodes.

A battery control unit includes a plurality of switching units, a control unit, a charger configured to charge batteries, and a charging control unit. The plurality of switching units is respectively provided for a plurality of batteries connected in series, and are configured to switch between a connected state and a non-connected state. The connected state is a state that a corresponding battery is connected in series with other batteries and the non-connected state is a state that the corresponding battery is disconnected from a series connection with the other batteries. The control unit is configured to determine whether each voltage of the plurality of batteries reaches a charge end voltage during charging, and to control the switching unit corresponding to the battery which is determined to reach the charge end voltage to switch to the non-connected state.