Composite solid electrolyte and all-solid-state battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoki OSADA
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Abstract
A composite solid electrolyte configured to strike a balance between ion conductivity and peel strength when it is formed into a layer by pressure forming, and an all-solid-state battery comprising the composite solid electrolyte. The all-solid-state battery comprises a composite solid electrolyte containing first sulfide-based solid electrolyte particles and second sulfide-based solid electrolyte particles having a smaller Young's modulus than the first sulfide-based solid electrolyte particles; wherein an average particle diameter of the first sulfide-based solid electrolyte particles is smaller than the second sulfide-based solid electrolyte particles.
Claims8
An all-solid-state battery comprising a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer,
- wherein the all-solid-state battery comprises a composite solid electrolyte containing first sulfide-based solid electrolyte particles and second sulfide-based solid electrolyte particles having a smaller Young's modulus than the first sulfide-based solid electrolyte particles;
- wherein an average particle diameter of the first sulfide-based solid electrolyte particles is smaller than the second sulfide-based solid electrolyte particles;
- and
- wherein the composite solid electrolyte is contained in at least one layer selected from the group consisting of the cathode layer, the anode layer and the solid electrolyte layer.
A composite solid electrolyte for all-solid-state batteries each comprising a cathode comprising a cathode layer, an anode comprising an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer,
- wherein the composite solid electrolyte comprises first sulfide-based solid electrolyte particles and second sulfide-based solid electrolyte particles having a smaller Young's modulus than the first sulfide-based solid electrolyte particles, and
- wherein an average particle diameter of the first sulfide-based solid electrolyte particles is smaller than the second sulfide-based solid electrolyte particles.
Dependencies are inferred from the claim text.