Optimization of Carbon Coatings on LiFePO4
| Autor: | Robert Kostecki, Marca M. Doeff, James D. Wilcox, Grace Y. Lau |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Graphene Lithium iron phosphate Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element Lithium battery Catalysis law.invention Environmental Energy Technologies chemistry.chemical_compound Ferrocene chemistry law Lithium Calcination Electrical and Electronic Engineering Physical and Theoretical Chemistry Carbon |
| Zdroj: | Doeff, Marca M.; Wilcox, James D.; Kostecki, Robert; & Lau, Grace. (2005). Optimization of Carbon Coatings on LiFePO4. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/6wq2655w |
| Popis: | The electrochemical performance of LiFePO{sub 4} in lithium cells is strongly dependent on the structure (disordered/graphene or D/G ratio) of the in situ carbon produced during synthesis from carbon-containing precursors. Addition of pyromellitic acid (PA) prior to final calcination results in lower D/G ratios, yielding a higher-rate material. Further, improvements in electrochemical performance are realized when graphitization catalysts such as ferrocene are also added during LiFePO{sub 4} preparation, although overall carbon content is still less than 2 wt.%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|