Temperature control apparatus and method for high energy electrochemical cells
First Claim
1. An electrochemical storage device, comprising:
- a plurality of electrochemical cells arranged in a spaced apart relationship, each of he electrochemical cells comprising opposing first and second planar surfaces and subject to volumetric changes during charge amd discharge cycling; and
a cooling bladder formed of a conformable thermally conducting material and having an inlet port and an outlet port, the cooling bladder conformable to maintain contact with at least the first planar surface or the second planar surface of each of the electrochemical cells during the volumetric changes, a heat transfer medium passing between the inlet and outlet port to control au operating temperature of the electrochemical cells.
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Abstract
An apparatus and method provides cooling for electrochemical cells of an energy storage device. A number of electrochemical cells are arranged in a spaced apart relationship, each having opposing first and second planar surfaces and being subject to volumetric changes during charge and discharge cycling. A cooling bladder provides temperature control for the energy storage device. The cooling bladder is formed of a conformable thermally conducting material and includes inlet and outlet ports. The cooling bladder conforms to maintain contact with at least the first planar surface or the second planar surface of each cell during volumetric changes of the cells. A heat transfer medium passes between the inlet and outlet ports of the cooling bladder to control an operating temperature of the cells. The cooling bladder can be pressurized to maintain the cells of the energy storage device in a state of compression during charge and discharge cycling.
199 Citations
66 Claims
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1. An electrochemical storage device, comprising:
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a plurality of electrochemical cells arranged in a spaced apart relationship, each of he electrochemical cells comprising opposing first and second planar surfaces and subject to volumetric changes during charge amd discharge cycling; and
a cooling bladder formed of a conformable thermally conducting material and having an inlet port and an outlet port, the cooling bladder conformable to maintain contact with at least the first planar surface or the second planar surface of each of the electrochemical cells during the volumetric changes, a heat transfer medium passing between the inlet and outlet port to control au operating temperature of the electrochemical cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An electrochemical storage device, comprising:
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a plurality of electrochemiical cells arranged in a spaced apart relationship, the electrochemical cells comprising opposing first and second planr surfaces, the electrochemical cells subject to volumetric changes during charge and discharge cycling; and
a cooling bladder formed of a conformable thermally conductive material, the cooling bladder conformable to contact at least the repective first planar surface or second planar surface of each of the electrochemical cells, a heat transfer medium passing within the cooling bladder to control an operating temperature of the electrochemical cells, the cooling bladder pressurized to maintain the electrochemical cells in a state of compression during charge and discharge cycling. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A method of providing cooling within an electrochemical storage davice, comprising:
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providing a plurality of electrocemical cells arranged in a spaced apart relationship, each of the electrochemical cells comprising opposing first and second planar surface and subject to volumetric changes during charge and discharge cycling;
providing a conformable, the conductive cooling bladder such that the cooling bladder maintains contact with at least the first planar suface or the second planar surface of each of the electrochemical cells during the volumetric changes; and
passing heat transfer medium through the cooling bladder to control an operating temperature of the electochemical cells. - View Dependent Claims (53, 54, 55, 56, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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57. The method of claim 57, wherein supporting the cooling bladder further comprises using a porous filler material within the cooling bladder to support the cooling bladder at the cooling bladder bend locations.
Specification