Battery pack including hinged flap for release of vent gas

A battery assembly, comprising;

• a battery array including a plurality of battery cells;
• an enclosure assembly surrounding the battery array;
• and a frame within the enclosure assembly, wherein the frame includes a flap, wherein the flap includes a perimeter having a first portion along which a first gap is present between the flap and the frame throughout an entirety of a thickness of the frame, and a second portion configured as a hinge of the flap and along which a second gap is present only partially through the thickness, wherein the second gap is formed in a side of the frame facing the plurality of battery cells,
• wherein the flap is a first flap,
• wherein the first flap is arranged vertically above a first group of the plurality of battery cells,
• wherein the frame includes a second flap spaced-apart from the first flap,
• wherein the second flap is arranged vertically above a second group of the plurality of battery cells,
• wherein the battery assembly further comprises a thermal barrier and a particle barrier,
• wherein the thermal barrier is arranged between the first and second groups of the plurality of battery cells,
• wherein the particle barrier is between the plurality of battery cells and the frame, and
• wherein the thermal barrier extends from a base of the enclosure assembly to the particle barrier.

A battery assembly for an electrified vehicle, comprising:

• a battery array including a plurality of battery cells;
• an enclosure assembly surrounding the battery array;
• and
• a frame within the enclosure assembly, wherein the frame includes a flap, wherein the flap includes a perimeter having a first portion along which a first gap is present between the flap and the frame throughout an entirety of a thickness of the frame, and a second portion configured as a hinge of the flap and along which a second gap is present only partially through the thickness, wherein a height of the second gap is between 70-80 percent of the thickness, and wherein a surface of the frame vertically above the second gap is free of seams, cracks, or gaps.