Patent ID: 11962002
Assignee: QUANTUMSCAPE BATTERY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. A composition comprising:
a cathode active material; and
at least one oxide bonded to the cathode active material;
wherein the at least one oxide bonded to the cathode active material comprises lithium (Li), oxygen (O), and at least one of zirconium (Zr) and phosphorus (P);
wherein the molar ratios of Li, Zr, P, and O, are represented by the formula LixZryPaOd, wherein 0.05≤x≤25.0, 0≤y≤5.0, 0≤a≤16.0; and 2.0≤d≤55.0; and
wherein subscripts x, y, a, and d, are selected so the at least one oxide is charge neutral and y and a are not both zero;
wherein the composition has a ratio of Zr:Ni, as measured by x-ray photoelectron spectroscopy (XPS) of 0.3 to 3.2; and
wherein the cathode active material is LiNixMnyCozO2, x+y+z=1, 0≤x≤1, 0≤y≤1, and 0≤z≤1; and
wherein the composition comprises between about 5 weight % and 10 weight % of lithium as measured by inductively coupled plasma (ICP) analysis, less than about 1 weight % of zirconium as measured by inductively coupled plasma (ICP) analysis, less than about 0.5 weight % of phosphorus as measured by inductively coupled plasma (ICP) analysis, less than about 65 weight % of manganese, cobalt, and nickel as measured by inductively coupled plasma (ICP) analysis, or a combination thereof.