A battery unit for a favor inhaler includes a chargeable and dischargeable power supply, a connection part capable of electrically connecting to an external charger, and a controller configured to perform control regarding at least the power supply, wherein when an accumulated value of a connection time period to the charger exceeds a first predetermined time period, the controller determines that the power supply has been degraded.

A power storage system includes a power storage element; and a voltage detecting unit configured to detect an output voltage of the power storage element. The power storage element and the voltage detecting unit are formed by integrally forming structural materials of the power storage element and the voltage detecting unit on the same base material, without any point bonding portions formed by solder mounting.

A sensing circuit for battery cell voltage may include a first cell module including a plurality of battery cells; a first sensor sensing voltage of each battery cell of the first cell module; and a first isolation relay device including a plurality of relays, determining an electrical connection state between each battery cell of the first cell module and the first sensor by being connected thereto, and maintaining isolation between the first cell module and the first sensor.

One embodiment provides a method, including: measuring, using a controller circuit of an information handling device, resistance of a printed resistive element coated onto a portion of a battery; identifying, based on the measuring, an aspect associated with battery swelling; determining, using a processor, whether the aspect is greater than a predetermined threshold; and triggering, responsive to determining that the aspect is greater than the predetermined threshold, execution of a remedial action. Other aspects are described and claimed.

A battery module includes: a cell laminated body; a first and a second end plates which are provided at both end portions of the cell laminated body; and a sensor device which is mounted on a mounting surface and detects the voltage of each cell in the cell laminated body. The sensor device includes: a sensor device body; and a sensor fixing portion which is fixed to the first end plate by a fastening member. In the perpendicular direction, an end surface of the fastening member is located to be lower than or equal to an end surface of the sensor device body, the mounting surface of the cell laminated body is located to be lower than a bottom surface of the sensor fixing portion, and an end surface of the first end plate is located to be lower than the mounting surface of the cell laminated body.

A battery management apparatus is configured to diagnose a state of a battery cell based on a capacity-voltage differential profile. Specifically, the battery management apparatus diagnoses a state of the battery cell according to a change pattern of a peak associated with a positive electrode reaction area and a peak associated with an available lithium loss in the capacity-voltage differential profile. The state of the battery cell may be diagnosed in real time even while the battery cell is in operation. In addition, it is possible to independently diagnose whether the positive electrode reaction area of the battery cell is reduced and whether available lithium is lost.

One or more systems, devices, and/or system-implemented methods are provided that can facilitate provision of varying AC output voltage or DC output voltage, including selectively separately providing a positive voltage output, a negative voltage output and no voltage output. A device can comprise a battery cell, and a controller connected to the battery cell and that varies output from the battery cell, wherein the controller is configured to cause the battery cell to selectively separately provide negative output voltage, positive output voltage and no output voltage. A method can comprise varying output polarity from a multi-cell battery cluster and selectively providing one or both of alternating current (AC) voltage output or direct current (DC) voltage output from the multi-cell battery cluster due to the varying of the output polarity.

A measuring device is detachably connected between the vehicle traction voltage system and the high voltage appliance. The measuring device includes a first and second terminal configured to receive a first and second probe of a voltage measuring instrument, a first and second resistor arranged to connect each terminal, upon the measuring device being attached to the vehicle voltage traction system, to a first and second traction voltage conductor of the traction voltage system extending through the measuring device. The measuring device, upon the measuring device being attached to the vehicle voltage traction system, connects to a Hazardous Voltage Interlock Loop of the vehicle extending through the measuring device so that the HVIL is broken when the measuring device is detached from the traction voltage system, thereby inactivating the traction voltage system.

A battery monitoring module may be arranged in such a way as to receive a sensor signal from a light sensor configured to detect light within a battery module. The battery monitoring module may determine, using processing circuitry, a light characteristic within the battery module based on the sensor signal. The battery monitoring module may determine, using processing circuitry, a battery condition of the battery module based on the light characteristic.

According to an embodiment, a battery pack comprises a battery cell including a positive electrode and a negative electrode and configured to generate an electromotive force via the positive electrode and the negative electrode, a plurality of first sub paths configured to connect the positive electrode to a sensing circuit of an electronic device to which the battery pack is connected, a plurality of second sub paths configured to connect the negative electrode to the sensing circuit, a power line configured to connect the positive electrode and the negative electrode to at least one of a system of the electronic device or a charging circuit of the electronic device, a first switch configured to selectively connect at least one of the plurality of first sub paths, selected depending on a voltage applied to the positive electrode and the negative electrode, to the sensing circuit, and a second switch configured to selectively connect at least one of the plurality of second sub paths, selected depending on the voltage, to the sensing circuit.