Abstract: The electric power storage device of an electric power storage system includes plural electric power storage bodies and a switching relay. The switching relay is capable of being switched between a first state where the plural electric power storage bodies are connected in series, and a second state where the plural electric power storage bodies are connected in parallel. The switching relay allows each of the plural electric power storage bodies to be electrically disconnected from the rest of the electric power storage bodies. The control unit controls the switching relay into the all-off state where the plural electric power storage bodies are electrically disconnected from each other, when the main relay is in an opened state.

Abstract: Provided is a management device (BMS 40) for an assembled battery 30 which uses a positive electrode active material containing lithium iron phosphate and having an electrically conductive layer formed on a surface thereof, the BMS 40 being provided with: a current sensor 43 which measures a current flowing through the assembled battery 30; a voltage sensor 45 which measures a voltage of the assembled battery 30; and a management unit 42.

Abstract: Battery systems are provided according to various embodiments. A battery system includes: a first battery rack including a first battery module having a first battery, a first rack management unit which controls charging and discharging of the first battery module, and a first rack protection circuit which interrupts current of the first battery module under control of the first rack management unit; and a second battery rack including a second battery module having a second battery, a second rack management unit which controls charging and discharging of the second battery module, and a second rack protection circuit which interrupts current of the second battery module under control of the second rack management unit, wherein the first and second rack protection circuits are controlled in parallel by the first and second rack management units.

Abstract: Disclosed is a transmitter used for a wireless charging system. The transmitter includes a plurality of phase locked loops (PLLs) that outputs single-phase power signals, a plurality of antennas that transmits power signals transmitted from the plurality of PLLs to a receiver, and a controller that determines a specific frequency for the receiver based on a signal strength indication (RSSI) received from the receiver and allows output frequencies of the plurality of PLLs to be different from each other in a specific frequency band preset based on the specific frequency.

Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may have an array of coils that extend under a wireless charging surface. Control circuitry may supply alternating-current control signals to inverters. The inverters are coupled to resonant circuits. Each resonant circuit includes a capacitor coupled to a respective one of the coils. During operation, wireless power signals are transmitted from the coils to the wireless power receiving device through the charging surface. The capacitor associated with each resonant circuit may potentially be individually selected to enhanced uniformity of the wireless power transmitting device. The array of coils may have multiple layers and the capacitors in each layer may have different respective values.

Abstract: A wireless power adapter uses a passive conversion circuit to convert an incompatible transmitter-receiver pair into a compatible transmitter-receiver pair. The wireless power adapter transfers power between a main transmitter and main receiver that are incompatible with each other. In one aspect, the wireless power adapter includes an auxiliary receiver coil system, a auxiliary transmitter coil system and a passive conversion circuit. The auxiliary receiver coil system is compatible with the main transmitter and can efficiently receive wireless power transmitted by the main transmitter that is external to the adapter. The auxiliary transmitter coil system is compatible with the main receiver and can produce wireless power to be efficiently transmitted to the main receiver. The passive conversion circuit connects the incompatible main transmitter and main receiver by transferring power from the auxiliary receiver coil system to the auxiliary transmitter coil system.

Abstract: Rechargeable battery systems and rechargeable battery system operational methods are described. According to one aspect, a rechargeable battery system includes a plurality of rechargeable battery cells coupled between a plurality of terminals and charge shuttling circuitry configured to couple with and shuttle electrical energy between individual ones of the rechargeable battery cells, and wherein the charge shuttling circuitry is configured to receive the electrical energy from one of the rechargeable battery cells at a first voltage and to provide the electrical energy to another of the rechargeable battery cells at a second voltage greater than the first voltage.

Abstract: An intelligent battery charging system for improving battery safety, battery longevity, and battery charging efficiency. The intelligent battery charging system includes a memory that is arranged to store an intelligent battery controller system. The intelligent battery controller system is executable by a processor and is in communication with a device state sensor, a battery temperature sensor, one or more current sensors, and a battery charge level sensor. The intelligent battery controller system is configured to monitor, via the battery temperature sensor, a temperature of the battery for a mobile device and apply one or more of a plurality of remedial actions to lower the temperature of the battery when a battery temperature above a certain threshold is measured.

Abstract: An example embodiment includes a landing pad having a housing and a power terminal configured to draw electric power from a power source. The landing pad further includes an electrically conductive landing terminal dorsal to the housing and configured such that, during a landing state of an aerial vehicle, the landing terminal makes contact with a plurality of electric contacts disposed ventrally to a fuselage of the aerial vehicle. The landing terminal is configured to transfer electric power drawn by the power terminal to the aerial vehicle via the electric contacts during the landing state of the aerial vehicle.

Abstract: A battery for supplying current to a device includes one or more battery cores and a battery management system (BMS) electrically connected to the one or more battery cores. The BMS is configured to receive a controlling signal from a control unit of the device and control the one or more battery cores to supply current to the device based on the controlling signal.

Abstract: A charging method, a charging system and an electronic device are provided. The charging method includes the following steps: An inputting current limit is set. An inputting current of at least one charger is measured. A power source voltage of a power source is adjusted until a current difference between the inputting current and the inputting current limit is within a predetermined range.

Abstract: A wireless power transmitter that supplies power to a wireless power receiver. The wireless power transmitter includes a control unit, a resonator and an amplifier. The control unit generates an identification information of the wireless power transmitter. The resonator transmits power to the wireless power receiver. The amplifier drives the resonator and is controlled by the control unit such that the power transmitted by the resonator includes a first signal that carries the identification information of the wireless power transmitter. The wireless power transmitter further includes a wireless communication unit that sends a second signal having the identification information of the wireless power transmitter.

Abstract: A rechargeable battery jump starting device having detachable positive and negative cables. The rechargeable battery jump starting device, including a rechargeable battery connected to a positive cam-lock cable connecting device and a negative cam-lock cable connecting device. The rechargeable battery jump starting device can include a highly electrically conductive frame connecting the rechargeable battery to the cam-lock cable devices.

Abstract: The disclosure provides a wireless charging alignment method and system, the system comprising an electronic device and a wireless charging device, the electronic device having a display screen capable of displaying at least an marking symbol, the wireless charging device having a placement surface, the wireless charging device being disposed with at least a wireless charging module inside the placement surface, and the wireless charging device further comprising at least a corresponding symbol; the alignment method of the present invention is, in the process of placing the electronic device on the placement surface, to align the marking symbol to the corresponding symbol is aligned with the corresponding symbol, thereby quickly and accurately completing the alignment of the wireless charging, and a better subsequent charging performance can be performed.

Abstract: Disclosed is a battery pack, which includes a battery cell assembly having at least one battery cell; a pack casing having an input port and an output port provided at one side thereof so that a coolant flows in and out to cool the battery cell, the pack casing accommodating the battery cell assembly to fix and support the battery cell assembly; and a coolant supply and circulation unit connected to communicate with the input port and the output port to supply and circulate the coolant into the pack casing so that each battery cell is cooled in contact with the coolant.

Abstract: In at least one embodiment, an apparatus for monitoring a power feed from a plurality of batteries in a vehicle is provided. The apparatus includes a controller. The controller includes a first circuit portion and a microprocessor. The first circuit portion is configured to receive a first signal indicative of a first power feed for a first battery and a second signal indicative of a second power feed for a second battery. The first circuit portion is further configured to transmit an interrupt signal indicative of each of the first power feed and the second power feed being equal to or below a minimum voltage threshold. The microprocessor includes an interrupt input and is configured to enter into an emergency operation mode to store data corresponding to at least one vehicle operation for a predetermined amount of time in response to receiving the interrupt signal at the interrupt input.

Abstract: A system and method for charging an electric vehicle includes identifying vehicle information corresponding to the electric vehicle based on an electronic image of the electric vehicle, retrieving from an electronically stored database a location of a charging port on the electric vehicle based on the vehicle information, and robotically moving a charging connector according to the retrieved location to engage the charging port of the electric vehicle to charge a battery.

Abstract: Self-healing charging devices and techniques for identifying and/or troubleshooting causes of performance degradation in user devices are described. The self-healing charging devices described herein can leverage performance logs associated with user devices to identify problems on the user devices while the user devices are charging. Additionally or alternatively, the self-healing charging devices can leverage predictive models learned from a collection of data derived from a plurality of users associated with a network to identify usage and/or performance patterns for predicting issues that can arise based on usage patterns of the user of the user device. In some examples, the self-healing charging devices can be communicatively coupled to at least one network for offloading some of the processing.

Abstract: A power transmitter includes: a first resonator configured to wirelessly supply power to a power receiver and having an impedance that changes in response to a foreign material being proximate to the power transmitter; a second resonator having an impedance that changes in response to the foreign material being proximate to the power receiver; and controller configured to select either one of the first resonator and the second resonator in response to a wireless charging control, and to determine whether the foreign material is proximate to the power transmitter, based on a change in the impedance of the selected one of the first resonator and the second resonator.

Abstract: In electronic device (102) of the present disclosure, control circuit (153) selects one of first battery (201) and second battery (202) of extension device (103), and causes selected one to supply electric power to a load circuit. Control circuit (153) detects which state of switch (171) is in a first state or a second state. Control circuit (153) preferentially selects first battery (201) as a supply source of electric power to the load circuit as compared with second battery (202) when switch (171) is in the first state.