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Open AccessArticle

Use of Cellulose Nanofibers as an Electrode Binder for Lithium Ion Battery Screen Printing on a Paper Separator

1
Univ. Grenoble Alpes, CNRS, Grenoble INP, LGP2, 38000 Grenoble, France
2
Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
*
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(12), 982; https://doi.org/10.3390/nano8120982
Received: 29 October 2018 / Revised: 20 November 2018 / Accepted: 22 November 2018 / Published: 27 November 2018
(This article belongs to the Special Issue Cellulose Nanomaterials)
Water-based inks were formulated using cellulose nanofibers as a binder in order to directly front/reverse print lithium ion cells on a paper separator. Moreover, the high cohesion of electrodes as provided by cellulose nanofibers allowed for the embedding metallic current collectors in the electrodes during the printing stage, in order to develop a one-step printing and assembling process. Positive and negative inks based on LiFePO4, or graphite, respectively, and cellulose nanofibers, displayed rheological properties complying with a variety of printing processes, as well as with screen printing. Printed cells exhibited high electrical conductivity and adhesion between current collectors and inks, i.e., up to 64 ± 1 J/m2. Electrochemical cycling tests at C/10 showed a reversible capacity during the first cycle of about 80 mAh/g, which slightly decayed upon cycling. Preliminary results and assembling strategies can be considered as promising, and they represent a quick solution for the manufacturing of lithium ion batteries. Work is in progress to improve these processing issues and the cycling performances of Li-ion cells. View Full-Text
Keywords: cellulose nanofibers; Li-ion battery; printing electrode cellulose nanofibers; Li-ion battery; printing electrode
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MDPI and ACS Style

El Baradai, O.; Beneventi, D.; Alloin, F.; Bultel, Y.; Chaussy, D. Use of Cellulose Nanofibers as an Electrode Binder for Lithium Ion Battery Screen Printing on a Paper Separator. Nanomaterials 2018, 8, 982.

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