Solid-state positive electrode, method of manufacture thereof, and battery including the electrode
AssigneesSamsung Electronics Co., Ltd., The Regents of the University of California
InventorsQingsong Tu, Tan Shi, Gerbrand Ceder, Lincoln Miara
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Abstract
A positive electrode for a solid-state lithium battery, the positive electrode including: a positive active material; and a first solid electrolyte, wherein a ratio λ of an average particle diameter of the positive active material to an average particle diameter of the first solid electrolyte is 3≤λ≤40, wherein the positive active material has an average particle diameter of 1 μm to 30 μm, and wherein the first solid electrolyte has an average particle diameter of 0.1 μm to 4 μm.
Claims9
A positive electrode for a solid-state lithium battery, the positive electrode comprising:
- a positive active material comprising a lithium transition metal oxide comprising nickel, cobalt, and manganese;
- and
- a first solid electrolyte comprising a sulfide solid electrolyte, wherein a ratio λ of an average particle diameter of the positive active material to an average particle diameter of the first solid electrolyte is
- 5.5≤λ≤40,
- wherein the positive active material has an average particle diameter of 1 μm to 30 μm,
- wherein the first solid electrolyte has an average particle diameter of 0.1 μm to 4 μm, and
- wherein a content of the positive active material is 60 weight percent to 90 weight percent, based on a total weight of the positive electrode.
A solid-state lithium battery comprising:
- a positive electrode comprising a positive active material comprising a lithium transition metal oxide comprising nickel, cobalt, and manganese, and a first solid electrolyte comprising a sulfide solid electrolyte;
- a negative electrode;
- and
- a second solid electrolyte between the positive electrode and the negative electrode,
- wherein the first solid electrolyte and the second solid electrolyte are the same or different,
- wherein a ratio λ of an average particle diameter of the positive active material to an average particle diameter of the first solid electrolyte is
- 5.5≤λ≤40,
- wherein the positive active material has an average particle diameter of 1 μm to 30 μm,
- wherein the first solid electrolyte has an average particle diameter of 0.1 μm to 4 μm, and
- wherein a content of the positive active material is 60 weight percent to 90 weight percent, based on a total weight of the positive electrode.
Dependencies are inferred from the claim text.