J. Mater. Sci. Technol. ›› 2016, Vol. 32 ›› Issue (6): 566-572.DOI: 10.1016/j.jmst.2016.02.010

• Orginal Article • Previous Articles     Next Articles

Microfibrillated Cellulose Based Ink for Eco-Sustainable Screen Printed Flexible Electrodes in Lithium Ion Batteries

Oussama El Baradai1, 2, *, Davide Beneventi1, 2, Fannie Alloin3, 4, Roberta Bongiovanni5, Nadege Bruas-Reverdy1, 2, Yann Bultel3, 4, Didier Chaussy1, 2   

  1. 1 Univ. Grenoble Alpes, LGP2, F-38000 Grenoble, France; 2 CNRS, LGP2, F-38000 Grenoble, France; 3 Univ. Grenoble Alpes, LEPMI, F-38000 Grenoble, France; 4 CNRS, LEPMI, F-38000 Grenoble, France; 5 Department of Applied Science and Technology DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
  • Received:2015-09-30 Online:2016-06-10
  • Contact: Corresponding author. Ph.D.; Tel.: +33 4 76826954; Fax: +33 4 76826933. (O. El Baradai). E-mail address: Oussama.El-Baradai@lgp2.grenoble-inp.fr (O. El Baradai).
  • Supported by:
    This work was partially supported by the Énergies du Futur Carnot Institute (Investissements d'Avenir—grant agreement No. ANR-11-CARN-030-01). The authors acknowledge the facilities of the TekLiCell platform funded by the Région Rhône-Alpes (ERDF: European Regional Development Fund).

Abstract: Free organic solvent ink containing graphite, carboxymethyl cellulose and microfibrillated cellulose as active material, dispersing and binder, respectively, has been formulated to produce flexible and eco-sustainable electrodes for lithium ion batteries. Content ratio of components and dispersion protocol were tailored in order to have rheological properties suitable for a large and cheap manufacturing process as well as screen printing. The bio-sourced printed electrodes exhibit a high porosity value of 70% that limits the electrochemical performances. However, the calendering process enhances electrode performances by increasing the reversible capacity from 85 until 315?mAh/g and reducing porosity to an optimal value of 34%. Moreover the introduction of 2% w/w of monofluoro-ethylene carbonate in the electrolyte reduced their reversible capacity loss of 11% in the printed electrode.

Key words: Lithium ion batteries, Flexible electrode, Graphite, Screen printing, Cellulose, Organic free solvent