A High-Surface-Area Carbon-Coated 3D Nickel Nanomesh for Li-O-2 Batteries
| Autor: | Fanny Bardé, Philippe M. Vereecken, Yongho Kee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Battery (electricity)
MECHANISM GRAPHENE Materials science General Chemical Engineering Chemistry Multidisciplinary chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences chemistry.chemical_compound Coating Environmental Chemistry General Materials Science Composite material Green & Sustainable Science & Technology Power density air cathode current collector Science & Technology Current collector 021001 nanoscience & nanotechnology 0104 chemical sciences Nickel Chemistry General Energy Nanomesh chemistry Amorphous carbon Electrode Physical Sciences engineering electrodeposition Li-O-2 batteries Science & Technology - Other Topics 3D nanomaterial 0210 nano-technology |
| Popis: | Nanostructured electrodes show great promises for application in batteries and could improve their energy and power density. Herein, a carbon-coated 3D Ni nanomesh was used as an air cathode for non-aqueous Li-air (O2 ) battery applications. A 3 μm thick 3D Ni nanomesh was fabricated, showing an excellent surface area/footprint area ratio (90 cm2 :1 cm2 ) and uniformly distributed pores, on which a conformal amorphous carbon coating was applied for the first time. This carbon-coated 3D Ni nanomesh showed an approximately 100 times larger charge-footprint capacity than that of the glassy carbon electrode. Owing to its tunable properties, a capacity higher than 6 mAh cm-2 could be achieved for a carbon-coated 3D Ni nanomesh with a thickness of 100 μm, whereas the practical capacities of current air electrodes are in the range of 2 mAh cm-2 . ispartof: CHEMSUSCHEM vol:12 issue:17 pages:3967-3970 ispartof: location:Germany status: published |
| Databáze: | OpenAIRE |
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