| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Fischer, Anna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Mesoporous N‐doped carbon nanospheres as anode material for sodium ion batteries with high rate capability and superior power densitiescitations
- 2024Investigation of polyacrylonitrile‐derived multiple carbon shell composites for silicon‐based anodes in lithium‐ion batteriescitations
- 2021The role of synthesis conditions for structural defects and lattice strain in beta-TaON and their effect on photo- and photoelectrocatalysis
- 2021Hydrophobic AlOx surfaces by adsorption of a SAM on large areas for application in solar cell metallization patterningcitations
- 2021Electrochemical stability of platinum nanoparticles supported on N‐doped hydrothermal carbon aerogels as electrocatalysts for the oxygen reduction reactioncitations
- 2021Fluorination of Ni‐Rich lithium‐ion battery cathode materials by fluorine gas: chemistry, characterization, and electrochemical performance in full‐cellscitations
- 2020Investigating the Effect of Microstructure and Surface Functionalization of Mesoporous N-Doped Carbons on V$^{4+}$/V$^{5+}$ Kineticscitations
- 2020Investigating the Effect of Microstructure and Surface Functionalization of Mesoporous N-Doped Carbons on V4+/V5+ Kineticscitations
- 2019Synthesis of Pt@TiO2 nanocomposite electrocatalysts for enhanced methanol oxidation by hydrophobic nanoreactor templatingcitations
- 2019The role of synthesis conditions for structural defects and lattice strain in β-TaON and their effect on photo- and photoelectrocatalysiscitations
- 2019Electrochemical stability of silica-templated polyaniline-derived mesoporous N-doped carbons for the design of Pt-based oxygen reduction reaction catalystscitations
- 2018Polyformamidine-Derived Non-Noble Metal Electrocatalysts for Efficient Oxygen Reduction Reactioncitations
- 2017High surface hierarchical carbon nanowalls synthesized by plasma deposition using an aromatic precursorcitations
- 2016Two-step synthesis of Fe2O3 and Co3O4 nanoparticles: towards a general method for synthesizing nanocrystalline metal oxides with high surface area and thermal stability
- 2015Hydrophobic Nanoreactor Soft-Templating: A Supramolecular Approach to Yolk@Shell Materialscitations
Places of action
| Organizations | Location | People |
|---|
article
Fluorination of Ni‐Rich lithium‐ion battery cathode materials by fluorine gas: chemistry, characterization, and electrochemical performance in full‐cells
Abstract
The mild fluorination of Ni‐rich NCM CAMs (NCM=nickel‐cobalt‐manganese oxide; CAM=cathode active material) with a few hundred mbar of elementary fluorine gas (F2) at room temperature was systematically studied. The resulting fluorinated CAMs were fully analyzed and compared to the pristine ones. Fluorination at room temperature converts part of the soluble basic species on the CAM‐surface into a protecting thin and amorphous LiF film. No formation of a metal fluoride other than LiF was detected. SEM images revealed a smoothened CAM surface upon fluorination, possibly due to the LiF film formation. Apparently due to this protecting, but insulating LiF‐film, the fluorinated material has a reduced electrical conductivity in comparison to the pristine material. Yet, all fluorinated Ni‐rich NCM CAMs showed a considerably higher press density than the pristine material, which in addition increased with higher fluoride concentrations. In addition, fluorination of the Ni‐rich CAMs led to the chemically induced formation of small amounts of water, which according to TGA‐MS‐measurements can be removed by heating the material to 450 °C for a few hours. Overall, the tested fluorinated NCM 811 samples showed improved electrochemical performance over the pristine samples in full‐cells with graphite anodes at 30 °C and 45 °C after 500 cycles. Moreover, the fluorination apparently reduces Mn and Co cross talk from the CAM to the anode active material (AAM) through the electrolyte during charge/discharge.