DEGASSING UNIT, SEPARATOR, HOUSING, IN PARTICULAR BATTERY HOUSING, AND METHOD FOR PRODUCING SEPARATOR

• Main Authors: TSCHECH THOMAS, ALEXANDER SPENNEMANN, KOSIECKI JOSEF, SCHLEIDEN THOMAS
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to a degassing unit (10) for a housing (20), in particular a housing of a battery, in particular a housing of a traction battery of a motor vehicle, having a base body (12) which can be connected in a fluid-tight manner to the edge of a housing opening (24) of the housing (20), and an outer side (18) and an inner side (17), and characterized by at least one gas channel opening (15) closed by a flat stretched membrane (30). The membrane (30) is characterized by at least one weakened region (46) in which the mechanical properties of the membrane (30) are weakened by a local treatment, in particular by local melting of the material using a laser, and/or by a mechanical treatment, in particular by means of scribing and/or embossing, and in which the mechanical properties of the membrane (30) are reduced in comparison to the untreated membrane (30). The rupture pressure of the diaphragm (30) with which the gas channel opening (15) is released is reduced at least in the weakened region (46). T