Method of forming solid state electrolyte having high lithium ion conduction and battery incorporating same
US8349498B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for making ion conducting films includes the use of primary inorganic chemicals, which are preferably water soluble; formulating the solution with appropriate solvent, preferably deionized water; and spray depositing the solid electrolyte matrix on a heated substrate, preferably at 100 to 400° C. using a spray deposition system. In the case of lithium, the deposition step is then followed by lithiation or addition of lithium, then thermal processing, at temperatures preferably ranging between 100 and 500° C., to obtain a high lithium ion conducting inorganic solid state electrolyte. The method may be used for other ionic conductors to make electrolytes for various applications. The electrolyte may be incorporated into a lithium ion battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.