Heat dissipation for large battery packs
First Claim
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1. A battery pack, comprising:
- a plurality of similarly-shaped electrical cells aligned in a stack, each cell comprising;
a housing;
at least one electrode of a first type and at least one electrode of a second type contained within said housing; and
a first electrically and thermally conductive tab coupled to the at least one electrode of said first type and a second electrically and thermally conductive tab coupled to the at least one electrode of said second type, the first and second tabs extending through the housing; and
an electrically and heat conductive collector panel comprising;
a first surface electrically and thermally coupled to each of the first tabs; and
a second surface opposite the first surface; and
a thermal interface material that is electrically insulative and thermally conductive, the thermal interface material comprising;
a first thermal interface surface in thermal contact with the second surface of the collector panel; and
a second thermal interface surface opposite the first thermal interface surface; and
a temperature control panel in thermal contact with the second thermal interface surface.
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Abstract
One embodiment includes an electrical cell that includes a flat housing, at least one electrode and an electrically and heat conductive tab coupled to the electrode and extending through the housing for electrically and thermally coupling to a collector panel, the tab being capable of conducting both current and a substantial amount of heat out of the housing to a temperature control system. The cells may be stacked to form a battery having a temperature panel interfaced to the temperature control system by a thermal interface. The battery may propel an electrically-powered vehicle or the like.
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Citations
14 Claims
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1. A battery pack, comprising:
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a plurality of similarly-shaped electrical cells aligned in a stack, each cell comprising; a housing; at least one electrode of a first type and at least one electrode of a second type contained within said housing; and a first electrically and thermally conductive tab coupled to the at least one electrode of said first type and a second electrically and thermally conductive tab coupled to the at least one electrode of said second type, the first and second tabs extending through the housing; and an electrically and heat conductive collector panel comprising; a first surface electrically and thermally coupled to each of the first tabs; and a second surface opposite the first surface; and a thermal interface material that is electrically insulative and thermally conductive, the thermal interface material comprising; a first thermal interface surface in thermal contact with the second surface of the collector panel; and a second thermal interface surface opposite the first thermal interface surface; and a temperature control panel in thermal contact with the second thermal interface surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification