Battery Cell Venting Layout for Thermal Runaway Containment

The patent divides the battery cell wall into different functional zones: one wall (first wall) is equipped with both thermal management component and pressure relief mechanism, while another wall (second wall) is dedicated solely to thermal management. This segmentation allows the first wall to handle pressure relief emissions while the second wall provides uninterrupted thermal management, resolving the contradiction between temperature regulation effectiveness and thermal diffusion prevention.

The patent introduces a dedicated discharge pathway as an intermediary channel that directs emissions from the pressure relief mechanism away from the thermal management component. This intermediary pathway ensures that emissions are safely discharged to prevent explosion while preventing thermal diffusion to the thermal management component, thus resolving the contradiction between explosion safety and thermal diffusion prevention.

The patent segments the thermal management function across two different walls: the first wall has a smaller thermal management component area that coexists with the pressure relief mechanism, while the second wall has a larger thermal management component area without pressure relief mechanisms. This segmentation allows large-area thermal management on the second wall without emissions breakthrough risk, while the first wall handles pressure relief with minimal thermal management interference.