Patent ID: 11901506
Assignee: QUANTUMSCAPE BATTERY, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. A bilayer comprising:
a metal foil or metal powder bonded to one side of a sintered lithium-stuffed garnet thin film;
wherein the sintered lithium-stuffed garnet thin film thickness is less than 50 μm and greater than 10 nm;
wherein the sintered lithium-stuffed garnet thin film includes:
a primary cubic phase lithium-stuffed garnet characterized by the chemical formula LiALaBAlCM″DZrEOF, wherein 5<A<8; 1.5<B<4; 0.1<C<2; 0<D<2; 1<E<3; 1O<F<13; and M″ is selected from the group consisting of Mo, W, Nb, Y, Ta, Ga, Sb, Ca, Ba, Sr, Ce, Hf, and Rb; and
a secondary phase inclusion;
wherein:
the primary cubic phase lithium-stuffed garnet is present in the sintered lithium-stuffed garnet thin film at about 70-99.9 vol % with respect to the volume of the sintered lithium-stuffed garnet thin film; and
the secondary phase inclusion is present in the sintered lithium-stuffed garnet thin film at about 0.1-30 vol % with respect to the volume of the sintered lithium-stuffed garnet thin film,
wherein the secondary phase inclusion comprises LiAlO2 present in the bilayer at about 0.1-25 vol %.