Methods to stabilize lithium titanate oxide (LTO) by surface coating
US11264606B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods of pretreating an electroactive material comprising lithium titanate oxide (LTO) include contacting a surface of the electroactive material with a pretreatment composition. In one variation, the pretreatment composition includes a salt of lithium fluoride salt selected from the group consisting of: lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), and combinations thereof, and a solvent. In another variation, the pretreatment composition includes an organophosphorus compound. In this manner, a protective surface coating forms on the surface of the electroactive material. The protective surface coating comprises fluorine, oxygen, phosphorus or boron, as well as optional elements such as carbon, hydrogen, and listed metals, and combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.