Polymorphs of Li3PO4 and Li2MSiO4 (M=Mn, Co)
| Autor: | Emilio Morán, Robert Dominko, Helmut Ehrenberg, Ulises Amador, Loic Dupont, M. E. Arroyo y de Dompablo, J.M. Gallardo-Amores |
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| Rok vydání: | 2009 |
| Předmět: |
Electrode material
Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Manganese Lithium battery LITHIUM PHOSPHATE Crystallography Temperature treatment High pressure Electrical and Electronic Engineering Physical and Theoretical Chemistry Cobalt |
| Zdroj: | Journal of Power Sources. 189:638-642 |
| ISSN: | 0378-7753 |
| DOI: | 10.1016/j.jpowsour.2008.09.066 |
| Popis: | The behavior of Li 3 PO 4 and Li 2 MSiO 4 ( M = Mn, Co) compounds under high pressure/high temperature is investigated. Pmn2 1 -Li 3 PO 4 remains stable up to the higher experimental limit of 80 kbar (900 °C). A sample of Li 2 MnSiO 4 consisting of a mixture of Pn2 1 and Pmnb polymorphs converts upon high pressure/high temperature treatment into the Pmn2 1 polymorph; the latter being stable at 80 kbar and 900 °C. A sample of Li 2 CoSiO 4 - P2 1 /n transforms to the denser Pmn2 1 polymorph at 40 kbar/900 °C, but decomposes at higher pressure (60 kbar/900 °C). No evidence on any novel Li 2 MSiO 4 polymorph is detected in any of the high-pressure products. |
| Databáze: | OpenAIRE |
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