In an embodiment a cell-monitoring connector includes a housing including a lock portion corresponding to a groove portion defined by lock recesses stacked and overlapped in the first direction, wherein the lock recesses are formed in at least one of upper portions or lower portions of terminals protruding in a second direction, the second direction intersecting the first direction toward the cell-monitoring connector from side portions of separators included in the plurality of unit cells and a connector position assurance (CPA) including a lower portion configured to be inserted into the lock portion of the housing in a third direction and to be locked in the groove portion and an upper portion extending from the lower portion in the third direction, the upper portion having a top surface having an area larger than an area of the lower portion in a direction intersecting the third direction.

Disclosed is a battery module capable of reducing manufacturing costs and improving manufacturing efficiency. The battery module includes a cell assembly having a plurality of secondary batteries; a battery management unit having a printed circuit board with a printed circuit, the printed circuit board having a connecting portion on inner and outer peripheries of which a connecting conductor is coated to be electrically connected to the printed circuit; and a bus bar plate having a plate shape, the bus bar plate having a connection portion configured to electrically connect the plurality of secondary batteries and a sensing portion with a strip form elongated from one side end of the connection portion, the sensing portion having a bent structure where a longitudinal end thereof is bent at least two times, at least a part of the bent structure being in elastic contact with an inside of the connecting portion.

An apparatus for detecting a defect of a battery pack may disconnect a battery cell at which a defect is detected inside a battery pack to remove a risk factor that may occur from the corresponding battery cell. Risk factors that may cause explosions can be eliminated by discharging the battery cell at which a defect is detected. In addition, the recurrence of the risk factor can be prevented in advance by disconnecting the battery cell at which the defect is detected from the battery pack.

A current sensor arrangement includes a first conductor configured to conduct a first portion of a primary current in a current flow direction; a second conductor configured to conduct a second portion of the primary current in the current flow direction; and a magnetic sensor. The first and second conductor are coupled in parallel. The first current produces a first magnetic field as it flows through the first conductor and the second current produces a second magnetic field as it flows through the second conductor. The first conductor and the second conductor are separated from each other in a first direction that is orthogonal to the current flow direction, thereby defining a gap. The magnetic sensor is arranged in the gap such that the first conductor is arranged over a first portion of the magnetic sensor and the second conductor is arranged under a second portion of the magnetic sensor.

The present application discloses a battery inspection device. The battery inspection device includes a power supply device, at least one charging port disposed on a surface of the power supply device, at least one display light bar disposed on the surface of the power supply device, and at least one first battery connection line, wherein the first battery connection line is electrically connected to the charging port.

The present application discloses a battery inspection device. The battery inspection device includes a power supply device, at least one charging port disposed on a surface of the power supply device, at least one display light bar disposed on the surface of the power supply device, and at least one first battery connection line, wherein the first battery connection line is electrically connected to the charging port.

A battery cell monitoring and conditioning circuit is disclosed to facilitate low cost manufacture of battery modules comprising a plurality of series connected cells. A battery management system utilizing a plurality of series connected cell monitoring and conditioning circuits is disclosed. Methods are provided for operating the disclosed circuits.

A battery cell monitoring and conditioning circuit is disclosed to facilitate low cost manufacture of battery modules comprising a plurality of series connected cells. A battery management system utilizing a plurality of series connected cell monitoring and conditioning circuits is disclosed. Methods are provided for operating the disclosed circuits.

A sensor system for a battery module, includes: a shunt resistor including: a first current clamp and a second current clamp, each of the first and second current clamps to be connected to a current path of the battery module; a first voltage clamp and a second voltage clamp; and a measurement resistance between the first voltage clamp and the second voltage clamp, and electrically connected to the first current clamp and the second current clamp; a first landing pad electrically connected to the first voltage clamp; a second landing pad electrically connected to the second voltage clamp; a first temperature sensor connected to the first landing pad; and a second temperature sensor connected to the second landing pad.

A battery management system includes a plurality of batteries each comprising a positive terminal and a negative terminal, wherein the positive or negative terminal of each of the plurality of batteries is coupled to the positive or negative terminal of another one of the plurality of batteries; a monitoring board connected to the positive terminal and the negative terminal of at least one of the plurality of batteries; and a controller connected to the monitoring board through the positive terminals and the negative terminals of the plurality of batteries, wherein the monitoring board is configured to monitor a status of the at least one battery and transmit one or more battery parameters of the at least one battery to the controller, and wherein the controller is configured to adjust performance of the plurality of batteries based on the one or more battery parameters.