期刊
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
卷 32, 期 6, 页码 566-572出版社
JOURNAL MATER SCI TECHNOL
DOI: 10.1016/j.jmst.2016.02.010
关键词
Lithium ion batteries; Flexible electrode; Graphite; Screen printing; Cellulose; Organic free solvent
资金
- Energies du Futur Carnot Institute [ANR-11-CARN-030-01]
- Region Rhone-Alpes (ERDF: European Regional Development Fund)
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. Copyright (C) 2016, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited.
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