Embodiments of this application provide a battery cell, which includes a housing and an electrode assembly. The electrode assembly is accommodated in the housing. A film structure is arranged at a position located on an inner wall of the housing and opposi...

A secondary battery including an electrode assembly, a case in which the electrode assembly is accommodated, a cap assembly covering an opening of the case, and a fire-extinguishing member accommodated inside the case, the fire-extinguishing member in cont...

A battery assembly configured to prevent battery cells from igniting. A plurality of battery cells including a cap plate having a vent. A pouch is over the vent, and including a fire extinguishing agent. The vent includes a breakable portion configured to ...