Energy storage device assembly method
In this study, LbL self-assembly was used to assemble complete 3D supercapacitors and hybrid batteries onto anionically charged (2.3 mmol g−1 carboxyl groups) cross-linked cellulose nanofibril (CNF.
Figure 2a shows cyclic voltammograms (CVs) of the interdigitated 3D device in aqueous 1 M Na2SO4 pH 7 electrolyte at different scan rates and reveals the typical square-shaped v.
One of the advantages of the sponge-like architecture of the CNF aerogel is its inherent flexibility in compression and bending. This flexibility may prove to be important to acco.
To extend this concept towards a full electrochemical cell based on redox reactions, an ion-insertion electrode was assembled. Copper hexacyanoferrate (CuII−N≡C−FeIII/.
A 3D hybrid battery was LbL assembled following the methodology described in Fig. 1, combining the CuII−N≡C−FeIII/II cathode with (PEI/PAA)30 as the separator and with (PEI/CNT)5,10 a.
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