Degassing channel for battery cell, has valve main portion that is lifted from valve seat, when difference between pressure prevailing in degassing channel and in surroundings of degassing channel exceeds predetermined limit value

摘要

The degassing channel (3) has a non-return valve (9) which is arranged at an outlet opening (5). A valve main portion (10) is lifted from a valve seat, when the difference between the respective pressure prevailing in degassing channel and pressure prevailing in surroundings of degassing channel exceeds a predetermined limit value. The valve main portion is connected with a cover (6) of the accumulator module (1). The valve main portion is formed from elastomer, foam, plastic film, metal foil or metal composite film.