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POSITIVE ELECTRODE MATERIAL AND SECONDARY BATTERY USING THE SAME

  • US 20200136152A1
  • Filed: 09/25/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/25/2018
  • Status: Active Grant
First Claim
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1. A positive electrode material comprising:

  • a positive electrode active material; and

    a dielectric material disposed on a surface of the positive electrode active material and having a perovskite crystal structure,wherein, in an X-ray diffraction pattern which is obtained by X-ray diffraction measurement using a CuKα

    ray and in which a vertical axis indicates a diffraction intensity, a horizontal axis indicates a diffraction angle 2θ

    , and a unit is rad, a highest intensity peak which is a peak derived from the dielectric material and has a highest intensity is in a range satisfying 2θ

    =31°

    to 32°

    , and a half width x of the highest intensity peak satisfies the following expression;

    0.22≤

    x≤

    0.33.

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