NONAQUEOUS SOLVENT CELL

摘要

PURPOSE:To prevent explosion due to erroneous usage such as shortcircuit by forming the lead wire to be employed for connection between negative and positive poles with shape memory alloy. CONSTITUTION:Spiral electrode group 2 is contained in a can 1 through a caged separator 3 made of glass fiber unwoven cloth. A plastic sealing disc 9 is provided air-tightly at the upper face opening of can 1 and fixed with the positive pole terminal 11. The lower end of positive pole lead wire 15 made of Ni-Ti shape memory alloy is connected to the metal current collector of the positive pole strip 5 in the electrode group 2 while the upper end of the lead wire 15 is connected to the lead connecting chip 14 of positive pole terminal 11. Upon internal heating due to erroneous usage such as shortcircuit, the positive pole lead wire made of shape memory alloy will recover the original shape to interrupt connection with said chip 14 thus to open circuit.