Battery pack assembly having thermal transfer sheets and heat sink
First Claim
1. A battery pack thermal management assembly for drawing heat from a plurality of generally rectangular prismatic batteries having opposed major surfaces and arranged in a stacked configuration inside a housing, the battery pack thermal management assembly comprising;
- a plurality of thermal transfer sheets made from sheets of a compressed mass of exfoliated graphite particles, each said thermal transfer sheet being positioned to contact the major surface of at least one of the prismatic batteries;
a cover plate having a to face and a bottom face and including a plurality of apertures through which the plurality of thermal transfer sheets extend, said apertures including at least one curved sidewall, said thermal transfer sheets being bent over said curved sidewall; and
a heat sink positioned on top of said cover plate, at least a portion of each of said thermal transfer sheets being secured between said heat sink and said top face.
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Accused Products
Abstract
A battery pack thermal management assembly draws heat from prismatic batteries having opposed major surfaces and arranged in a stacked configuration inside a housing. The thermal management assembly includes a plurality of thermal transfer sheets made from sheets of a compressed mass of exfoliated graphite particles. Each thermal transfer sheet is positioned to contact the major surface of at least one of the prismatic batteries. A cover plate has a top face and a bottom face and includes a plurality of apertures through which the plurality of thermal transfer sheets extend. The apertures include at least one curved sidewall and the thermal transfer sheets are bent over the curved sidewall. At least a portion of each of the thermal transfer sheets is secured between a heat sink and the top face.
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Citations
19 Claims
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1. A battery pack thermal management assembly for drawing heat from a plurality of generally rectangular prismatic batteries having opposed major surfaces and arranged in a stacked configuration inside a housing, the battery pack thermal management assembly comprising;
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a plurality of thermal transfer sheets made from sheets of a compressed mass of exfoliated graphite particles, each said thermal transfer sheet being positioned to contact the major surface of at least one of the prismatic batteries; a cover plate having a to face and a bottom face and including a plurality of apertures through which the plurality of thermal transfer sheets extend, said apertures including at least one curved sidewall, said thermal transfer sheets being bent over said curved sidewall; and a heat sink positioned on top of said cover plate, at least a portion of each of said thermal transfer sheets being secured between said heat sink and said top face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification