Lithium titanate and lithium cells and batteries including the same
US7820327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Oct 15, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An active material suitable for use in lithium cells comprises lithium titanate having a surface and a material disposed on the surface is provided. The material is non-reactive with an electrolyte within a range of potential vs. lithium of from 0 V to 4 V. A variety of lithium cells including lithium titanate are also provided. The lithium titanate is typically of the general formula: Li4Ti5O12-x, wherein x is greater than 0. Further, a cell module is provided. The cell module comprises a plurality of lithium cells each having a soft outer packaging and assembled in an environment where water content in the environment is controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.