Lithium titanate
| Names | |
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| Other names
Lithium metatitanate
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| Identifiers | |
| ECHA InfoCard | 100.031.586 |
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PubChem CID
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| Properties | |
| Li2TiO3 | |
| Molar mass | 109.76 |
| Appearance | Off-white powder |
| Density | 3.43 g/cm3 |
| Melting point | 1,533 °C (2,791 °F; 1,806 K) |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Lithium titanate (full name lithium metatitanate) is a compound containing lithium and titanium. It is an off-white powder at room temperature and has the chemical formula Li2TiO3.
It is the anode component of the fast recharging lithium-titanate battery. It is also used as an additive in porcelain enamels and ceramic insulating bodies based on titanates. It is frequently utilized as a flux due to its good stability. In recent years, along with other Lithium ceramics, metatitanate pebbles have been the subject of research efforts towards tritium breeding materials in nuclear fusion applications .
The most common crystallization of Li2TiO3 is a monoclinic system. A monoclinic system of crystallization is defined as three unequal axes with one oblique intersection.
The stable monoclinic polymorph is also known as β-Li2TiO3. Additionally a high temperature cubic phase exhibiting solid-solution type behavior is referred to as γ-Li2TiO3 and is known to form reversibly above temperatures in the range 1150°-1250 °C. A metastable cubic phase, isostructural with γ-Li2TiO3 is referred to as α-Li2TiO3 and is known to form from low temperature synthesis procedures and transforms to the stable β phase at temperatures around 400 °C.
The sintering process is taking a powder, putting it into a mold and heating it to below its melting point. Sintering is based on atomic diffusion, the atoms in the powder particle diffuse into surrounding particles eventually forming a solid or porous material.
It has been discovered that Li2TiO3 powders have a high purity and good sintering ability.
Lithium titanate is used as a cathode in layer one of a double layer cathode for molten carbonate fuel cells. These fuel cells have two material layers, layer 1 and layer 2, which allow for the production of high power molten carbonate fuel cells that work more efficiently.
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