POWER SOURCE DEVICE, ELECTRIC VEHICLE PROVIDED WITH SAME, AND ELECTRICITY STORAGE DEVICE

摘要

In a power supply device, the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, and the gas duct further comprises a joining aperture being connected airtight to the gas exhaust valve, and a duct exhaust portion being connected to the external gas exhaust duct, and the inner diameter d inside the gas duct is at least partially smaller than the outer diameter a of the gas exhaust valve between the joining aperture and the duct exhaust portion.

主权项

1. A power supply device comprising:
a battery cell comprising:
an outer can; anda gas exhaust valve opening a part of the outer can in response to becoming a high pressure in the inside of the outer can, a gas duct guiding the gas exhausted from the gas exhaust valve to an external gas exhaust duct, wherein the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, the gas duct further comprising:
a joining aperture being connected airtight to the gas exhaust valve; anda duct exhaust portion being connected to the external gas exhaust duct, wherein the inner diameter inside the gas duct is at least partially smaller than the outer diameter of the gas exhaust valve between the joining aperture and the duct exhaust portion.