Artículo
Insights into the Impact of Activators on the ‘Catalytic’ Graphitization to Design Anode Materials for Lithium Ion Batteries
Autor/es | Hanhart, V.
Frankenstein, L. Ramírez Rico, Joaquín Siozios, V. Winter, M. Gómez Martín, A. Placke, T. |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2022 |
Fecha de depósito | 2024-07-01 |
Publicado en |
|
Resumen | In this work, we systematically investigate the ‘catalytic’ graphitization of a biomass precursor (coffee ground) using 10–60 wt. % of the activator iron (III) chloride hexahydrate in a temperature range of 1000 °C – 2400 ... In this work, we systematically investigate the ‘catalytic’ graphitization of a biomass precursor (coffee ground) using 10–60 wt. % of the activator iron (III) chloride hexahydrate in a temperature range of 1000 °C – 2400 °C. Special focus is put on the correlation of synthesis conditions, e. g., heat treatment temperature and mass fraction of iron chloride, with the electrochemical performance in carbon||Li metal cells. The structural investigations of the materials reveal a positive impact of an increasing heat treatment temperature and/or mass fraction of inserted activator on the degree of graphitization and the delithiation capacity. However, a saturation point regarding the maximum degree of graphitization at 2000 °C and reversible capacity by the ‘catalytic’ graphitization approach using iron (III) chloride has been found. A maximum degree of graphitization of ≈69 % could be reached by applying 2000 °C and 40 wt. % FeCl3 ⋅ 6H2O, resulting in a reversible capacity of 235 mAh g−1. |
Agencias financiadoras | Ministry of Economic Affairs, Innovation, Digital- ization and Energy of the State of North Rhine-Westphalia (MWIDE Junta de Andalucía Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | 313-W044A
P20-01186 US-1380856 PID2019-107019RB-I00 |
Cita | Hanhart, V., Frankenstein, L., Ramírez Rico, J., Siozios, V., Winter, M., Gómez Martín, A. y Placke, T. (2022). Insights into the Impact of Activators on the ‘Catalytic’ Graphitization to Design Anode Materials for Lithium Ion Batteries. ChemElectroChem, 9 (21), e202200819. https://doi.org/10.1002/celc.202200819. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Insights into the Impact of ... | 1.787Mb | [PDF] | Ver/ | |