Method and apparatus for electronically evaluating the internal temperature of an electrochemical cell or battery

  • US 6,294,897 B1
  • Filed: 10/18/2000
  • Issued: 09/25/2001
  • Est. Priority Date: 09/01/1999
  • Status: Expired due to Fees
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First Claim
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1. Apparatus for determining the internal temperature of an electrochemical cell or battery comprising:

  • electrical excitation circuitry adapted to apply multiple frequency electrical excitation to said cell or battery;

    electrical response sensing circuitry configured to sense an electrical response of said cell or battery to said multiple frequency electrical excitation; and

    computation circuitry responsive to said multiple frequency electrical excitation and to said electrical response and adapted to evaluate said internal temperature from computations performed in accordance with said multiple frequency electrical excitation and said electrical response.

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