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Energy storage system using rare earth and hydroxyl co-doped ceramic in humid-environment

  • US 10,325,724 B2
  • Filed: 03/29/2017
  • Issued: 06/18/2019
  • Est. Priority Date: 03/29/2017
  • Status: Active Grant
First Claim
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1. An energy storage system, comprising:

  • a hermetically-sealed casing having a volume defined within the casing wherein a relative humidity in said volume is a range of 30-90%; and

    at least one energy storage capacitor disposed in said volume, each said energy storage capacitor having a solid dielectric sandwiched between two electrodes, wherein said solid dielectric is a lanthanum-doped barium titanate-based ceramic material, wherein a dopant of said lanthanum-doped barium titanate-based ceramic material is selected from the group consisting of lanthanum hydroxide and lanthanum oxide, and wherein said lanthanum-doped barium titanate-based ceramic material includes an alkali hydroxide co-dopant selected from the group consisting of potassium hydroxide, sodium hydroxide, rubidium hydroxide, and lithium hydroxide.

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