Process for producing lithium titanate and lithium ion battery and negative electrode therein
US6475673B1 · kind B1 · utility
49Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for producing lithium titanate, a mixture of titanium dioxide and at least one lithium compound selected from the group consisting of lithium carbonate, lithium hydroxide, lithium nitrate, and lithium oxide is presintered at a temperature of 670° C. or more and less than 800° C. to yield a composition consisting of TiO2 and Li2TiO3 or a composition consisting of TiO2, Li2TiO3 and Li4Ti5O12. The composition is then sintered at a temperature in the range of 800 to 950° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.