Battery Venting Channel Layout for Cooling Thermal Runaway Discharges

The patent introduces a first cavity as an intermediary chamber between the battery cell and the external environment. The discharges from the battery cell are redirected into this cavity first, where they can cool down before any potential external discharge. This intermediary space acts as a buffer zone that decouples the direct thermal pathway from the battery cell to the outside environment.

The patent adds a spatial dimension to the discharge pathway by creating a three-dimensional cavity structure. Instead of a direct linear path from the battery cell to the outside, the discharges are channeled into a volumetric space where they can dissipate heat through contact with the cavity walls and available volume, effectively using the third dimension for thermal management.

The patent segments the discharge pathway into distinct functional zones: the venting channel for initial discharge direction, the first cavity for thermal buffering and mixing, and the path to the first pressure relief component for controlled release. The blocking component further segments the cavity space to create extended flow paths, dividing the thermal management function into multiple spatial segments rather than a single direct path.

The blocking component is designed with curved or angled surfaces that guide the discharges along a meandering path through the cavity. Instead of a straight line, the discharges follow a curved trajectory that maximizes contact with the cavity walls and extends the cooling distance, utilizing geometric curvature to achieve thermal management goals.