| abstract |
A solid state battery cell with 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 auxiliary interlayer sandwiched between at least one of (i) the anode and the solid-state electrolyte layer and (ii) the cathode and the solid-state electrolyte layer. The capacitor auxiliary interlayer includes 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 comprises Al 2 O 3 And at least one of poly (ethylene glycol) methyl ether acrylate with LiTFSI, polyethylene oxide (PEO) with LiTFSI, and poly (vinylidene fluoride) copolymer with hexafluoropropylene (PVDF-HFP) -based gel electrolyte. The inorganic material comprises 70% Li 2 S‑29％P 2 S 5 ‑1％P 2 O 5 . The polymer-inorganic hybrid material comprises PEO, LiTFSI and 75% Li 2 S‑24％P 2 S 5 ‑1％P 2 O 5 (LPOS). |