{
  "patent_number": "US 11145922",
  "country": "US",
  "title": "Boosting Solid-State Batteries with a Capacitor Interlayer",
  "original_title": "Solid-state battery having a capacitor-assisted interlayer",
  "summary": "This patent describes a solid-state battery design that includes a special capacitor-like layer between the main battery parts to improve performance and stability.",
  "what_it_does": "The patent details a solid-state battery cell (Claim 1) that includes an anode, a cathode, and a solid-state electrolyte layer between them. The key feature is a \"capacitor assisted interlayer\" (Claim 1) placed between either the anode and the solid-state electrolyte (Claim 2) or the cathode and the solid-state electrolyte (Claim 3), or both (Claim 4). This interlayer is designed to be in \"intimate contact\" with both surfaces (Claim 2). It is made from specific materials like polymer-based compounds (e.g., polyethylene oxide with LiTFSI), inorganic compounds (e.g., Li2S-P2S5-P2O5), or hybrid materials (Claim 6, 7), and crucially, it contains a capacitor anode or cathode active material (Claim 5, 12). For example, a rechargeable lithium-ion battery could have this interlayer between its anode and the solid-state electrolyte, where the interlayer itself contains activated carbon as a capacitor anode active material (Claim 11, 12).",
  "what_it_does_not_cover": [
    "Does not cover solid-state batteries that do not include a capacitor-assisted interlayer between an electrode and the solid-state electrolyte layer (Claim 1).",
    "Does not cover interlayers that are purely separators and do not contain a capacitor anode or cathode active material (Claim 9, 6, 7).",
    "Does not cover a capacitor-assisted interlayer that is not in intimate contact with both the electrode and the solid-state electrolyte layer (Claim 2, 3, 4).",
    "Does not cover batteries that rely solely on liquid electrolytes without the specified solid-state components and interlayer (Claim 10 implies a hybrid, but the core is solid-state).",
    "Does not cover capacitor-assisted interlayers that do not include at least one of the specified polymer-based, inorganic, or polymer-inorganic hybrid materials (Claim 6, 7)."
  ],
  "filed": "2019-11-14",
  "granted": "2021-10-12",
  "expires": "2039-11-14",
  "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": "Qili Su",
      "url": "https://patentbrief.org/inventor/qili-su"
    },
    {
      "name": "Xiaochao Que",
      "url": "https://patentbrief.org/inventor/xiaochao-que"
    }
  ],
  "times_cited": 14,
  "tags": [
    "automotive",
    "consumer_electronics",
    "energy",
    "materials",
    "semiconductors"
  ],
  "abstract": "A solid-state battery cell having a capacitor interlayer is disclosed. The solid-state battery includes an anode, a cathode spaced from the anode, a solid-state electrolyte layer disposed between the anode and the cathode, and a capacitor assisted interlayer sandwiched between at least one of (i) the anode and solid-state electrolyte layer, and (ii) the cathode and the solid-state electrolyte layer. The capacitor assisted interlayer comprise at least one of a polymer-based material, an inorganic material, and a polymer-inorganic hybrid material; and a capacitor anode active material or a capacitor cathode active material. The polymer-based material includes at least one of a poly(ethylene glycol) methylether acrylate with Al 2 O 3 and LiTFSI, a polyethylene oxide (PEO) with LiTFSI, and a poly(vinylidene fluoride) copolymer with hexafluoropropylene (PVDF-HFP)-based gel electrolyte. The inorganic material includes a 70% Li 2 S-29% P 2 S 5 -1% P 2 O 5 . The polymer-inorganic hybrid material includes a mixture of PEO, LiTFSI, and 75% Li 2 S-24% P 2 S 5 -1% P 2 O 5 (LPOS).",
  "url": "https://patentbrief.org/patent/us/11145922/solid-state-battery-having-a-capacitor-assisted-interlayer",
  "markdown_url": "https://patentbrief.org/patent/us/11145922/solid-state-battery-having-a-capacitor-assisted-interlayer/md",
  "google_patents_url": "https://patents.google.com/patent/US11145922",
  "relatedPatents": []
}