Process for preparing layered rock-salt type lithium manganese oxide by mixed alkaline hydrothermal method
US6193947A · kind A · utility
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4Claims
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Key dates
| Filing date | Jun 29, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jun 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Hydrothermal treatment of at least one manganese source material, for example, an oxide of manganese, such as Mn.sub.2 O.sub.3, MnO, or MnO.sub.2, in an aqueous solution containing at least one water-soluble lithium salt, such as lithium hydroxide, lithium chloride, lithium nitrate, lithium fluoride, or lithium bromide, and an alkaline metal hydroxide, such as potassium hydroxide, at 130 to 300.degree. C. can realize the preparation of a lithium manganese oxide (LiMnO.sub.2) having a layered rock-salt structure in a single stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.