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Battery systems, battery modules, and method for cooling a battery module

  • US 8,852,778 B2
  • Filed: 04/30/2009
  • Issued: 10/07/2014
  • Est. Priority Date: 04/30/2009
  • Status: Active Grant
First Claim
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1. A battery module, comprising:

  • a battery cell having a generally rectangular-shaped body portion, the generally rectangular-shaped body portion having a first flat side and a second flat side;

    a first graphite sheet having a first flat panel portion and a first extension portion, the first flat panel portion disposed on the first flat side of the battery cell that conducts heat energy from the battery cell into the first graphite sheet to cool the battery cell, the first extension portion extending from a first end of the first flat panel portion;

    a first cooling manifold thermally coupled to the first graphite sheet that conducts heat energy from the first graphite sheet into the first cooling manifold, the first cooling manifold having a groove extending therein configured to receive the first extension portion therein, the first flat panel portion of the first graphite sheet being disposed perpendicular to the first cooling manifold, the first flat side of the battery cell being disposed perpendicular to the first cooling manifold, the first cooling manifold further configured to receive a fluid that flows therethrough to conduct heat energy from the first cooling manifold into the fluid; and

    a second graphite sheet having a second flat panel portion and a second extension portion, the second flat panel portion disposed on the second flat side of the battery cell that conducts heat energy from the battery cell into the second graphite sheet to cool the battery cell, the second extension portion extending from a first end of the second flat panel portion; and

    a second cooling manifold thermally coupled to the second graphite sheet that conducts heat energy from the second graphite sheet into the second cooling manifold, the battery cell and the first and second graphite sheets being disposed between the first and second cooling manifolds, the second cooling manifold having a groove extending therein configured to receive the second extension portion therein, the second flat panel portion being disposed perpendicular to the second cooling manifold, the first flat side of the battery cell being disposed perpendicular to the second cooling manifold, the second cooling manifold further configured to receive the fluid that flows therethrough to conduct heat energy from the second cooling manifold into the fluid.

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