{
  "patent_number": "US 11942620",
  "country": "US",
  "title": "How to Build Solid-State Batteries with Tiny Holes for Better Electrolyte",
  "original_title": "Solid state battery with uniformly distributed electrolyte, and methods of fabrication relating thereto",
  "summary": "This patent describes a method for manufacturing solid-state batteries by punching small holes through battery electrodes and then filling these holes with a liquid that hardens into a solid electrolyte, aiming for more efficient power delivery.",
  "what_it_does": "The patent outlines a method for creating a solid-state electrochemical cell with a uniformly distributed solid-state electrolyte. First, solid-state electrodes are prepared, consisting of a 'solid-state electroactive material layer' next to a 'current collector' (Claim 1). Next, a 'plurality of apertures' (many small holes) are punched continuously through both the electroactive material layer and the current collector (Claim 1). These electrodes are then soaked in a 'solid-state electrolyte precursor solution,' a liquid that fills all the punched holes and any other tiny gaps or pores within the electrodes (Claim 1). Finally, the electrodes are heated, causing the liquid precursor solution to solidify and form the 'distributed solid-state electrolyte' throughout the battery structure (Claim 1). For example, this process could be used to ensure the solid electrolyte in an electric vehicle battery is evenly spread, improving its ability to store and release energy.",
  "what_it_does_not_cover": [
    "Does not cover solid-state battery manufacturing methods that do not involve punching apertures through the electrodes.",
    "Does not cover batteries where the electrolyte is formed without first impregnating the electrodes with a liquid precursor solution.",
    "Does not cover liquid electrolyte batteries, as it specifically focuses on solid-state electrolytes.",
    "Does not cover methods where apertures are created but do not extend continuously through both the electroactive material layer and the current collector.",
    "Does not cover solid-state batteries where the electrolyte is applied as a pre-formed solid layer without subsequent impregnation and solidification.",
    "Does not cover heating temperatures outside the range of about 50° C. to about 300° C. for solidifying the precursor solution."
  ],
  "filed": "2021-12-06",
  "granted": "2024-03-26",
  "expires": "2041-12-06",
  "status": "active",
  "holder": "GM Global Technology Operations",
  "holder_url": "https://patentbrief.org/company/gm-global-technology-operations",
  "inventors": [
    {
      "name": "Haijing Liu",
      "url": "https://patentbrief.org/inventor/haijing-liu"
    },
    {
      "name": "Yong Lu",
      "url": "https://patentbrief.org/inventor/yong-lu"
    },
    {
      "name": "Zhe Li",
      "url": "https://patentbrief.org/inventor/zhe-li"
    },
    {
      "name": "Meiyuan Wu",
      "url": "https://patentbrief.org/inventor/meiyuan-wu"
    },
    {
      "name": "Xiaochao Que",
      "url": "https://patentbrief.org/inventor/xiaochao-que"
    }
  ],
  "times_cited": 2,
  "tags": [
    "automotive",
    "energy",
    "materials",
    "consumer_electronics"
  ],
  "abstract": "The present disclosure relates to a solid-state electrochemical cell having a uniformly distributed solid-state electrolyte and methods of fabrication relating thereto. The method may include forming a plurality of apertures within the one or more solid-state electrodes; impregnating the one or more solid-state electrodes with a solid-state electrolyte precursor solution so as to fill the plurality of apertures and any other void or pores within the one or more electrodes with the solid-state electrolyte precursor solution; and heating the one or more electrodes so as to solidify the solid-state electrolyte precursor solution and to form the distributed solid-state electrolyte.",
  "url": "https://patentbrief.org/patent/us/11942620/solid-state-battery-with-uniformly-distributed-electrolyte-and-methods-of-fabric",
  "markdown_url": "https://patentbrief.org/patent/us/11942620/solid-state-battery-with-uniformly-distributed-electrolyte-and-methods-of-fabric/md",
  "google_patents_url": "https://patents.google.com/patent/US11942620",
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}