ASSEMBLY FOR STORING ELECTRICAL ENERGY,COMPRISING A PRESSURE-INCREASING ACCELERATOR

摘要

The invention relates to an assembly for storing electrical energy (1), comprising: an envelope comprising a body (10) having at least one side wall (11) and at least one open end, and at least one cover (20) for closing the at least one open end of the body; at least one energy storage element (50) arranged inside the envelope; and an electrolyte solution also inside the envelope. The invention is characterised in that the storage assembly also comprises: a pressure-increasing accelerator (40) for generating an overpressure inside the assembly when the temperature inside the assembly is higher than a temperature threshold, especially at between 120° C. and 140° C.; and means (30) for the local fracturing of the envelope when the pressure inside the envelope is higher than a pressure threshold.

主权项

1. An electrical energy storage assembly comprising:
an envelope including:
a body having at least one side wall and at least one open end,at least one lid for closing said at least one open end of the body at least one energy storage element placed inside the envelope, an electrolyte solution also inside the envelope, and wherein the storage assembly further comprises: means for locally breaking the envelope when the pressure inside the envelope is greater than a pressure threshold, and an pressure-raising accelerator for generating overpressure inside the assembly when the temperature inside the assembly is greater than a temperature threshold, the pressure raising accelerator comprising at least one sealed housing, each housing containing at least one overpressure agent, said sealed housing(s) being configured for releasing the overpressure agent when the temperature inside the assembly is greater than the temperature threshold and at least one wall of said housing being designed in a material for which the melting temperature is substantially equal to the temperature threshold.