Abstract: A battery fire-extinguishing apparatus for preventing heat from spreading to an entire battery pack when fire occurs in some battery module includes a plurality of fire-extinguishing fluid storages respectively located at a plurality of battery modules and configured to discharge fire-extinguishing fluid, a plurality of resistors respectively adjacent to the plurality of fire-extinguishing fluid storages, and a control circuit configured to monitor voltage across both ends of the plurality of resistors and to increase current flowing through each of the plurality of resistors when the voltage across both ends of the plurality of resistors is higher than a reference voltage.

Abstract: Disclosed is an overcurrent application prevention device including a current sensor for measuring a charging current applied from a charging unit to a battery, a bypass unit, a 3-terminal switch having a first end connected to charging unit and a second end that is switched to be connected to the battery or the bypass unit, a comparator for receiving the measured charging current and controlling the 3-terminal switch on the basis of a result of a comparison between the received charging current and a preset value.

Abstract: The present invention relates to a pouch-shaped battery cell including a flexible printed circuit board (FPCB) having a circuit layer disposed at one surface or each of opposite surfaces thereof, wherein a plating portion having plating formed thereon is added to the outermost surface of the part of the flexible printed circuit board that abuts a sealed portion at which a pouch-shaped battery case is sealed. It is possible to secure the strength of sealing of the flexible printed circuit board to the sealed portion of the pouch-shaped battery case as the result of formation of the plating portion.

Abstract: The present invention relates to a secondary battery. The secondary battery according to the present invention comprises an electrode assembly wherein electrodes and separators are alternatingly stacked, and a battery case in which the electrode assembly is accommodated, where the battery case comprises a first gas pocket on which a first collection space for collecting gases in the battery case is formed, and on which is provided a first exhaust port from which gases in the first collection space are exhausted, and a second gas pocket on which a second collection space for collecting gases exhausted from the first exhaust port is formed, and on which is provided a second exhaust port for outward exhaust of gas in the second collection space.

Abstract: Disclosed is an overcurrent application prevention device including a current sensor for measuring a charging current applied from a charging unit to a battery, a bypass unit, a 3-terminal switch having a first end connected to charging unit and a second end that is switched to be connected to the battery or the bypass unit, a comparator for receiving the measured charging current and controlling the 3-terminal switch on the basis of a result of a comparison between the received charging current and a preset value.

Abstract: Disclosed is a tuner input circuit. The tuner input circuit includes an integrated including a low noise amplifier and a band pass filter embedded in one chip.