Garnet-type ion-conducting oxide and method for producing oxide electrolyte sintered body
US11264640B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2018 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2300/0077
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A garnet-type ion-conducting oxide configured to inhibit lithium carbonate formation on the surface of crystal particles thereof, and a method for producing an oxide electrolyte sintered body using the garnet-type ion-conducting oxide. The garnet-type ion-conducting oxide represented by a general formula (Lix-3y-z, Ey, Hz)LαMβOγ (where E is at least one kind of element selected from the group consisting of Al, Ga, Fe and Si; L is at least one kind of element selected from an alkaline-earth metal and a lanthanoid element: M is at least one kind of element selected from a transition element which be six-coordinated with oxygen and typical elements in groups 12 to 15 of the periodic table; 3≤x−3y−z≤; 0≤y≤0.22; C≤z≤2.8; 2.5≤α≤3.5; 1.5≤≈≤2.5; and 11≤γ≤13), wherein a half-width of a diffraction peak which has a highest intensity and which is observed at a diffraction angle (2θ) in a range of from 29° to 32° as a result of X-ray diffraction measurement using CuKα radiation, is 0.164° or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.