Patent 10587019 was granted and assigned to Neograf Solutions, Llc on March, 2020 by the United States Patent and Trademark Office.
A lithium ion battery pack includes a plurality of prismatic lithium polymer cells and one or more graphite heat spreaders. Each spreader has at least two major surfaces and is made of one of a sheet of a compressed mass of exfoliated graphite particles, a graphitized polyimide sheet, or combinations thereof.