Solid-state battery having a capacitor-assisted interlayer
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 cathod…
Original patent title: “Solid-state battery having a capacitor-assisted interlayer”
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 cathod…. Granted to GM Global Technology Operations in 2021 with 23 claims and 14 forward citations, and it is expected to expire in 2039.
Coverage
What does this patent actually cover?
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).
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Patent Abstract
Patent 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).
Patent timeline
Application submitted to the patent office
Application published, typically 18 months after filing
Patent officially issued
Patent enters public domain
PatentBrief Score
Impact Score
Moderate
Citation count
23/40
Moderately cited
Claim breadth
15/20
Broad claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →
Recency
20/20
Granted within 5 years
Assignee scale
0/20
Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
Heuristic Value Estimate
What this patent might be worth
$87K – $280K
Midpoint $175K · 13.3 yr remaining · industry ×1.4
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
Claim text not yet imported for this patent
The original legal language
Original claims
23 claims as filed with the patent office.
Concepts involved
Citations
Patent lineage
Cite this patent
Liu, H., Lu, Y., Li, Z., Su, Q., & Que, X. (2021). Solid-state battery having a capacitor-assisted interlayer (U.S. Patent No. 11,145,922). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/11145922/solid-state-battery-having-a-capacitor-assisted-interlayer
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Who owns patent US 11145922?
GM Global Technology Operations owns this patent, granted in 2021.
When does this patent expire?
This patent is expected to expire on November 14, 2039, when the invention enters the public domain.
What is patent US 11145922 cited by?
This patent has been cited by 14 later patents that build on its ideas.
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