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Electrochemical heat source

  • US 5,538,020 A
  • Filed: 06/22/1994
  • Issued: 07/23/1996
  • Est. Priority Date: 06/28/1991
  • Status: Expired due to Term
First Claim
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1. A method of making a controlled-rate electrochemical heat source comprising the steps of:

  • a) providing particles comprising an anode material and a cathode material combined in a form useful as an electrochemical heat source;

    b) contacting said particles with an aqueous electrolyte solution and allowing the particles to electrochemically react to utilize a limited portion of the anode material;

    c) stopping the electrochemical reaction in a partially completed state; and

    d) utilizing the partially reacted particles to make the controlled-rate electrochemical heat source.

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