Provided is a supercondenser which is an ultra-high capacity supercondenser for storing energy in the fields of commercial electricity and new and renewable energy, which is provided with a specific connector for connecting a plurality of unit condensers in series, parallel, or series-parallel and is thereby electrically stable, requires few members for connection, and has improved stability and durability. The supercondenser which includes a plurality of unit condensers, and a connector including a parallel connection means for connecting the unit condensers in parallel, and a serial connection means for connecting same in series.

A battery control apparatus is applied to a power supply system that includes a storage battery including a plurality of battery cells, an electrical apparatus connected to the storage battery, and a cell monitoring apparatus connected to each battery cell of the storage battery. In the battery control apparatus, a total cell voltage calculating unit calculates a sum of the voltages of battery cells detected by a cell monitoring apparatus as a total cell voltage. A voltage acquiring unit acquires a voltage of the cell monitoring apparatus side of a resistor that is provided on a conduction path. A consumed current calculating unit calculates a consumed current that is consumed by the cell monitoring apparatus based on the total cell voltage and the voltage acquired by the voltage acquiring unit. A residual capacity calculating unit calculates the residual capacity based on the charge-discharge current and the consumed current.

A separator and an electrochemical device including the same. The separator includes an adhesive layer including first adhesive resin particles having an average particle diameter corresponding to 0.8-3 times of an average particle diameter of the inorganic particles and second adhesive resin particles having an average particle diameter corresponding to 0.2-0.6 times of the average particle diameter of the inorganic particles, wherein the first adhesive resin particles are present in an amount of 30-90 wt % based on a total weight of the first adhesive resin particles and the second adhesive resin particles. The separator shows improved adhesion to an electrode and provides an electrochemical device with decreased increment in resistance after lamination with an electrode.

The present disclosure relates to a system with a household appliance, a charging station and a plurality of battery units. A control of the system is configured so that a battery unit connected to the charging station can be charged in dependence on a discharge of a battery unit which is connected to the household appliance for operating the household appliance to perform a use operation. The present disclosure further concerns a household appliance and a charging station. It is thereby made possible to perform particularly long use operations with only two battery units or at least a reduced number of battery units without an interruption for charging a battery, and at the same time to achieve the longest possible service life of the battery units.

An equalization circuit system having a system configuration simplified through reduction of the total number of switches is provided. An electricity storage cell voltage equalization circuit is operated with a square wave voltage generated at a switching node in an electricity storage module voltage equalization circuit as an input voltage, thereby achieving an electricity storage cell voltage equalization circuit without a switch. Typically, the electricity storage cell voltage equalization circuit may be a resonance voltage-doubling rectifier circuit, and the electricity storage module voltage equalization circuit may be a switched capacitor, a resonance voltage-doubling rectifier circuit, a buck-boost converter or the like.

A battery management system for use in charging a rechargeable battery is disclosed. The battery management system comprises a controller and a temperature sensor, wherein the temperature sensor is configured to provide a temperature signal based on a temperature of the rechargeable battery, and wherein the controller is configured to control a charging current for charging the rechargeable battery based on the temperature signal. In response to the temperature signal indicating that the temperature exceeds a first threshold temperature signal value the charging current is tapered down as a function of increasing temperature.

A charger includes a power output interface configured to output a charging signal; a signal interface configured to acquire charging information of a battery, the charging information including whether the battery is a smart battery or a non-smart battery; a balance charging interface configured to perform balance charging control over sets of battery cores of the battery; and a control circuit electrically connected to the power output interface, the signal interface, and the balance charging interface, the control circuit being configured to: in response to the battery being a smart battery, select the signal interface to perform charging control over the battery; and in response to the battery being a non-smart battery, select the balance charging interface to perform charging control over the battery.

A battery pack in accordance with an exemplary embodiment, which is booted when coupled to an external apparatus, includes: a connector which is a member configured to connect the external apparatus and the battery pack; and a booting circuit configured to start operation of the battery pack when the battery pack and the external apparatus are coupled. The connector includes: a (+) output terminal connected to a (+) output terminal of the battery pack; a coupling check terminal configured to check whether the external apparatus and the battery pack are coupled; a data transceiving terminal configured to tranceive data between the external apparatus and the battery pack; and a () output terminal connected to a () output terminal of the battery pack.

A method of controlling the charging of a battery includes determining plural pieces of state information of a battery unit based on a sensed physical quantity of the battery unit, calculating a weight of the battery unit based on the pieces of state information and a correspondence value of each of the plural pieces of state information, and defining, based on the weight, control information corresponding to an input physical quantity in a charging physical quantity of the battery unit, where the input physical quantity is input to a converter of the battery unit.

A method and system for generating inverted electrical signals includes a first string of batteries connected in series, each battery having a half-bridge circuit connected in parallel and each having upper switch and lower switches. A first H-bridge circuit is connected in parallel with the first string of batteries, and a triangle wave generator generates a plurality of triangle wave signals at a given amplitude and carrier frequency. The plurality of triangle wave signals have individual triangle wave signals phase-shifted from one another. A modulation wave generator generates a modulation signal at a modulation amplitude and at twice a fundamental frequency that is less than the carrier frequency. A controller compares an instantaneous magnitude of the individual triangle wave signals to an instantaneous magnitude of the modulation signal, and outputs commands to the upper switch of a respective half-bridge circuit based on the comparison.