BATTERY CUT OUT WITH ACTIVE THERMOMECHANICAL ELEMENT

摘要

The device (1) has a star-shaped deformable material (2) that is deformed when temperature reaches a threshold value. A convex-shaped deformable membrane (3) is deformed under an effect of excess pressure. An electrically conductive connection part (4) is broken as a result of the deformation of the deformable membrane. The deformable material comprises two parallel rectangular portions (2a, 2b) that are connected with a middle rectangular portion (2c) of the material. The deformable material is a shape memory material with nickel-titanium alloy. An independent claim is also included for a secondary cell comprising an intermediate terminal that is connected to an electrode plate group.