| CPC H01M 50/242 (2021.01) [B60L 50/64 (2019.02); H01M 50/233 (2021.01); H01M 50/24 (2021.01); H01M 2220/20 (2013.01)] | 23 Claims |

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1. An apparatus, comprising:
a battery support structure to support a plurality of battery cells, wherein the battery support structure includes opposing longitudinal sides and opposing lateral sides;
a first extrusion positioned to extend along at least one of the opposing longitudinal and lateral sides, wherein the first extrusion comprises a closed section with a first plurality of hollow chambers;
wherein the first extrusion comprises at least first and second primary side rails extending along the opposing longitudinal sides of the battery support structure; and
a second extrusion connected to the first extrusion such that the first extrusion is located between the plurality of battery cells and the second extrusion, and wherein the second extrusion comprises a plurality of discrete energy absorption structures that are spaced apart from each other in a longitudinal direction to provide open areas along the first and second primary side rails.
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