Polymeric battery frames and battery packs incorporating the same

A battery section comprising:

• a first polymeric endplate;
• a second polymeric endplate substantially planar with the first polymeric endplate;
• a first polymeric planar partition attaching proximate a first end of the first polymeric endplate and a first end of the second polymeric endplate;
• a second polymeric planar partition attaching proximate a second end of the first polymeric endplate and a second end of the second polymeric endplate;
• one or more middle polymeric planar partitions attaching to the first polymeric endplate and the second polymeric endplate between the first polymeric planar partition and the second polymeric planar partition, wherein the first polymeric planar partition, the second polymeric planar partition, and the one or more middle polymeric planar partitions define a plurality of prismatic battery cavities;
• and
• a plurality of battery cell stacks comprising a plurality of battery cells, each stack occupying one of the prismatic battery cavities, wherein each of the battery cell stacks are disposed substantially planar with the first polymeric endplate and the second polymeric endplate;
• wherein the plurality of polymeric planar partitions each comprises a plurality of polymeric repeating spacers and each of the plurality of polymeric repeating spacers interlocks with two adjacent polymeric repeating spacers, or with an adjacent polymeric repeating spacer and the first polymeric endplate or the second polymeric endplate.