Study on Different Water-Based Binders for Li 4 Ti 5 O 12 Electrodes

In this study, Li Ti O (LTO) electrodes with different types of water-soluble binders are successfully coated upon aluminum foil. Electrodes containing solely sodium alginate (SA) as a binder or a mixed PVDF/carboxymethyl cellulose (CMC) binder show the most stable performance in 1 M LiPF in EC/DMC...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2020-05, Vol.25 (10)
Main Authors: Toigo, Christina, Arbizzani, Catia, Pettinger, Karl-Heinz, Biso, Maurizio
Format: Article
Language:English
Subjects:
Electric Power Supplies
Electrochemistry
Electrodes
Ions - chemistry
Lithium - chemistry
Solvents - chemistry
Titanium - chemistry
Water - chemistry
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Summary:In this study, Li Ti O (LTO) electrodes with different types of water-soluble binders are successfully coated upon aluminum foil. Electrodes containing solely sodium alginate (SA) as a binder or a mixed PVDF/carboxymethyl cellulose (CMC) binder show the most stable performance in 1 M LiPF in EC/DMC 1:1 in half cell vs. Li, with respect to cycle stability over 100 cycles at 1 C. The electrodes processed with a mixture of PVDF/SA show considerable fading and slightly worse values for rate capability. Each one of the different binders used is eco-friendly, and the whole processing can be performed without the use of organic solvents. Further advantages covering the whole production and recycling process, as well as safety issues during operation, encourage deeper research in this area.
ISSN:1420-3049