Sustainable polysaccharide-derived mesoporous carbons (Starbon®) as additives in lithium-ion batteries negative electrodes

For the first time, polysaccharide-derived mesoporous carbonaceous materials (Starbon®) are used as carbon additives in Li-ion battery negative electrodes. A set of samples with pore volumes ranging from 0 to 0.91 cm 3 g −1 was prepared to evidence the role of porosity in such sustainable carbon add...

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Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2017, Vol.5 (46), p.2438-24387
Main Authors: Kim, Sanghoon, Escamilla-Pérez, Angel Manuel, De bruyn, Mario, Alauzun, Johan G, Louvain, Nicolas, Brun, Nicolas, Macquarrie, Duncan, Stievano, Lorenzo, Boury, Bruno, Monconduit, Laure, Mutin, P. Hubert
Format: Article
Language:English
Subjects:
Additives
Batteries
Carbon
Carbonaceous materials
Chemical Sciences
Electrochemistry
Electrodes
Lithium
Lithium-ion batteries
Material chemistry
Performance enhancement
Porosity
Rechargeable batteries
Sustainability
Titanium dioxide
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Summary:For the first time, polysaccharide-derived mesoporous carbonaceous materials (Starbon®) are used as carbon additives in Li-ion battery negative electrodes. A set of samples with pore volumes ranging from 0 to 0.91 cm 3 g −1 was prepared to evidence the role of porosity in such sustainable carbon additives. Both pore volume and pore diameter have been found crucial parameters for improving the electrodes performance e.g. reversible capacity. Mesoporous carbons with large pore volumes and pore diameters provide efficient pathways for both lithium ions and electrons as proven by the improved electrochemical performances of Li 4 Ti 5 O 12 (LTO) and TiO 2 based electrodes compared to conventional carbon additives. The mesopores provide easy access for the electrolyte to the active material surface, and the fibrous morphology favors the connection of active materials particles. These results suggest that polysaccharide-derived mesoporous carbonaceous materials are promising, sustainable carbon additives for Li-ion batteries. Mesoporous Starbon® was shown to surpass conventional carbon additives in Li-ion batteries negative electrodes.
ISSN:2050-7488
2050-7496
DOI:10.1039/c7ta08165k