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Thermal battery

  • US 6,475,662 B1
  • Filed: 06/05/2000
  • Issued: 11/05/2002
  • Est. Priority Date: 06/05/2000
  • Status: Expired due to Term
First Claim
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1. A thermal battery comprising:

  • at least one cell including a cathode, a node, and heat activatible electrolyte;

    a first pyrotechnic heat source;

    a second independently activatible pyrotechnic heat source; and

    a control device which monitors thermal battery storage temperature and activates said first pyrotechnic heat source when said storage temperature is within a first range, and activates both said first and second pyrotechnic heat sources when said storage temperature is within a second range.

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