Patent ID: 9653763
Date: 2017-05-16
CPC Classifications: F28D,F28F,H01M,Y02E

Claim:
1. A battery pack assembly comprising: a plurality of rectangular battery cells, each having two opposed major surfaces and arranged in a stacked configuration; a heat exchanger assembly comprising a fluid transfer layer comprising an elastomeric material and having opposed major surfaces and at least one channel formed in at least one of said opposed major surfaces; a first external layer comprised of flexible graphite, having a thickness of 10 to 1500 microns, and having an interior facing major surface and an external facing major surface, said interior facing major surface secured to one of said fluid transfer layer major surfaces, wherein said at least one channel and said interior facing major surface are configured to form a passage for receiving a thermal transfer fluid between said at least one channel and said interior facing major surface; and wherein said heat exchanger is folded in a repeating serpentine shape forming a plurality of U-shaped portions and said plurality of rectangular battery cells are received in said plurality of U-shaped portions.