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Fabrication of porous electrodes by fusion of silver particles

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  • Publication Date:
    June 11, 2024
  • معلومة اضافية
    • Patent Number:
      12009,501
    • Appl. No:
      18/328020
    • Application Filed:
      June 02, 2023
    • نبذة مختصرة :
      A method of making an electrode by providing a mixture of first particles of silver or silver oxide and second particles of an inorganic porogen, molding the mixture, cohering the mixture to form a green body, demolding the green body, heating the green body to form a monolith, to convert any silver oxide to silver, and to fuse the first particles together, and submerging the monolith in a liquid that removes the second particles.
    • Inventors:
      The Government of the United States of America, as represented by the Secretary of the Navy (Arlington, VA, US)
    • Assignees:
      The Government of the United States of America, as represented by the Secretary of the Navy (Arlington, VA, US)
    • Claim:
      1. A method comprising: providing a mixture comprising: first particles comprising silver or silver oxide; second particles comprising an inorganic porogen; and aqueous potassium hydroxide; molding the mixture; cohering the mixture to form a green body; demolding the green body; heating the green body to form a monolith, to convert any silver oxide to silver, and to fuse the first particles together; and submerging the monolith in a liquid that removes the second particles.
    • Claim:
      2. The method of claim 1 , wherein the first particles comprise metallic silver.
    • Claim:
      3. The method of claim 1 , wherein the first particles comprise Ag 2 O.
    • Claim:
      4. The method of claim 1 , wherein the first particles comprise AgO.
    • Claim:
      5. The method of claim 1 , wherein the monolith is heated at least 300° C.
    • Claim:
      6. The method of claim 1 , wherein the monolith is heated at least 700° C.
    • Claim:
      7. The method of claim 1 , wherein the second particles comprise sodium chloride.
    • Claim:
      8. The method of claim 7 , wherein the liquid is water.
    • Claim:
      9. The method of claim 1 , wherein molding and cohering the mixture includes incorporating a current collector into the green body.
    • Claim:
      10. The method of claim 1 , wherein the weight ratio of first particles to second particles is from 1:4 to 4:1.
    • Patent References Cited:
      3972729 August 1976 Mosetti
      20140186663 July 2014 Hiroki
    • Other References:
      CN86102501A and translation (Year: 2023). cited by examiner
    • Primary Examiner:
      Ohara, Brian R
    • Attorney, Agent or Firm:
      US Naval Research Laboratory
      Grunkemeyer, Joseph T.
    • الرقم المعرف:
      edspgr.12009501