Process for producing lithium titanate and lithium ion battery and negative electrode therein
US6645673B2 · kind B2 · utility
20Cited by
3References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Jul 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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 between 670° C. or more and less than 800° C. to prepare a compound consisting of TiO2 and Li2TiO3 or a compound consisting of TiO2, Li2TiO3 and Li4Ti5O12. The compound 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.