Study on different water-based binders for Li4Ti5O12 electrodes

Christina Toigo, Karl Heinz Pettinger, Maurizio Biso, Catia Arbizzani

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

In this study, Li 4Ti 5O 12 (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 6 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.

Original languageEnglish
Article number2443
JournalMolecules
Volume25
Issue number10
DOIs
Publication statusPublished - 24 May 2020
Externally publishedYes

Keywords

  • Anode
  • C-rate capability
  • Environmentally friendly coating
  • LTO
  • Lithium ion battery
  • Lithium titanium oxide
  • Sodium alginate
  • Stability test
  • Water-based PVDF binder
  • Electric Power Supplies
  • Solvents/chemistry
  • Titanium/chemistry
  • Water/chemistry
  • Electrodes
  • Lithium/chemistry
  • Electrochemistry
  • Ions/chemistry

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