1. Study on Different Water-Based Binders for Li4Ti5O12 Electrodes
- Author
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Catia Arbizzani, Karl-Heinz Pettinger, Maurizio Biso, Christina Toigo, Toigo C., Arbizzani C., Pettinger K.-H., and Biso M.
- Subjects
lithium titanium oxide ,Aluminum foil ,anode ,Materials science ,Pharmaceutical Science ,Lithium ,Article ,Lithium-ion battery ,Half-cell ,sodium alginate ,Analytical Chemistry ,lcsh:QD241-441 ,Electric Power Supplies ,lcsh:Organic chemistry ,Drug Discovery ,Electrochemistry ,medicine ,water-based PVDF binder ,Physical and Theoretical Chemistry ,Electrodes ,Sodium alginate ,Ions ,Titanium ,environmentally friendly coating ,Organic Chemistry ,Water ,Water based ,Carboxymethyl cellulose ,Anode ,Chemical engineering ,Chemistry (miscellaneous) ,Electrode ,Solvents ,Molecular Medicine ,C-rate capability ,LTO ,stability test ,lithium ion battery ,medicine.drug - Abstract
In this study, Li4Ti5O12 (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 LiPF6 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.
- Published
- 2020
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