Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same
US6030909A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Oct 24, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C4/18
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are provided glass-ceramics having a high lithium ion conductivity which include in mol %: ______________________________________ P.sub.2 O.sub.5 35-40% SiO.sub.2 0-15% GeO.sub.2 + TiO.sub.2 25-50% in which GeO.sub.2 0 <-50% and TiO.sub.2 0-<50% ZrO.sub.2 0-10% M.sub.2 O.sub.3 (where M is one or 0.5-15% two selected from the group consisting of Al and Ga) Li.sub.2 O 10-25% ______________________________________ and containing Li.sub.1+X M.sub.X (Ge.sub.1-Y Ti.sub.Y).sub.2-X (PO.sub.4).sub.3 (where 0<X<0.8 and 0<Y<1.0) as a main crystal phase. There are also provided glass-ceramics having a high lithium ion conductivity which include in mol % ______________________________________ P.sub.2 O.sub.5 32-40% SiO.sub.2 7-14% TiO.sub.2 38-45% Li.sub.2 O 10-18% ______________________________________ and containing Li.sub.1+X Ti.sub.2 Si.sub.X P.sub.3-X O .sub.12 (where X>0) as a main crystal phase. There are also provided solid electrolyte for an electric cell and a gas sensor using the lithium ion conductive glass-ceramics, and a solid electric cell and a gas sensor using the glass-ceramics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.