5. Electrode Preparation Exploiting Filtration

In order to reduce the costs as well as increase the production throughput of cellulose-bonded electrodes, the use of cellulose fibers (FB) as binder for both anode and cathode was investigated. Electrodes were prepared by means of a water-based filtration process as in common papermaking methods. Prior to electrode preparation, cellulose fibers were mechanically treated (beaten), following the procedure detailed in Sect. 4.​3, in order to produce external fiber fibrillation and the typical enhancement of fibers bonding characteristics [1]. The proposed production process is eco-friendly, low cost and easily up-scalable, capitalizing the well-established papermaking techniques and the obtained paper-electrodes are flexible and self-standing.