Lithium potassium tantalate compounds as Li super-ionic conductor, solid electrolyte and coating layer for lithium metal battery and lithium-ion battery
US11145896B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 13, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Solid-state lithium ion electrolytes of lithium potassium tantalate based compounds are provided which contain an anionic framework capable of conducting lithium ions. An activation energy of the lithium metal silicate composites is from 0.12 to 0.45 eV and conductivities are from 10−3 to 40 mS/cm at 300K. Compounds of specific formulae are provided and methods to alter the materials with inclusion of aliovalent ions shown. Lithium batteries containing the composite lithium ion electrolytes are also provided. Electrodes containing the lithium potassium tantalate based materials and batteries with such electrodes are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.