Patent ID: 6248470
Filing Date: 2001-06-19
Classification: H01M,Y02E

Abstract:
A pressure sensitive circuit breaker comprising:a lid connected to a case of a battery in an airtight manner;a diaphragm portion being a part of said lid having a wall thickness smaller than most other portions of the lid, said diaphragm portion being displaced by an internal pressure of the battery;a cut-off member having an electric conduction passage and held indirectly by said lid, said cut-off member functioning to cut off said electric conduction passage by displacement of said diaphragm portion with an increase in internal pressure of the battery;an outer connection mechanism connected to one end of said electric conduction passage of said cut-off member; andan inner connection mechanism to connect an opposite end of the electric conduction passage of the cut-off member with a power generating element located in an interior of the battery.