Safety vent for a sealed prismatic electrical device

Details Safety vent for a sealed prismatic electrical device Safety vent for a sealed prismatic electrical device

H - Electricity

01

M

H01M 2/12 (2006.01)

Patent

CA 2165152

Safety vents comprising a weakening groove reliably rupture at lower internal pressures in sealed prismatic electrical devices when at least a portion of the groove is formed parallel to and adjacent to an edge of the container such that it traverses the perpendicular bisector of said edge. A 'U' shaped groove is particularly suitable for use in prismatic lithium ion batteries.

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