Method and apparatus for amplitude limiting battery temperature spikes
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Abstract
A method and apparatus for containing heat generated by a battery to reduce the amplitude of a temperature excursion to enhance safety in temperature critical applications, such as in implantable medical devices. The apparatus employs a heat absorber (38) closely thermally coupled to the battery (30). The heat absorber includes heat-absorbing material preferably exhibiting an endothermic phase change at a temperature below that produced by the battery.
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Citations
60 Claims
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1-49. -49. (canceled)
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50. A device, comprising:
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a battery capable of producing a temperature greater than a temperature T1, the battery having a case that defines an interior of the case, the case having a lateral wall that connects a top of the case to a bottom of the case, a top of the lateral wall contacting the top of the case and a bottom of the lateral wall contacting the bottom of the case; and a heat absorbing material exhibiting a phase change at the temperature T1, the heat absorbing material contacting the lateral wall of the battery without contacting both the top of the lateral wall and the bottom of the lateral wall. - View Dependent Claims (51, 52, 53, 54, 55, 56, 58, 59, 60)
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Specification