BATTERY PACK, BATTERY-MOUNTED DEVICE AND CONNECTION STRUCTURE FOR BATTERY PACK

摘要

Disclosed is a battery pack securing safety by preventing a battery contained in the battery pack from coming into a burning state even when the battery discharges a high-temperature gas in an abnormal state. Specifically disclosed is a battery pack having an exhaust duct (1C) for flowing a gas discharged from a battery, wherein the temperature of the gas is decreased in the exhaust duct (1C) and then the gas is discharged to the outside. The flow channel area of the exhaust duct (1C) is set at not less than 0.5 mm2 and not more than 15 mm2 per 1 Ah of the battery capacity. The exhaust duct (1C) is provided with a gas cooling portion (1L) and a spark trapping portion (1M). ® KIPO & WIPO 2009