Recycling supercapacitors based on shredding and mild thermal treatment

Recycling Graphene from Supercapacitor Electrodes as Reinforcing Filler for Epoxy Resins

“…The binder is polyvinylidene difluoride, which has a decomposition temperature of around 470 -500 o C [14]. Hence, the peak at 475 o C is attributed to the decomposition of the binder in the electrode.…”

“…Hence, the peak at 475 o C is attributed to the decomposition of the binder in the electrode. The electrolyte is tetraethyl ammonium tetrafluoroborate (TEABF4), which is reported to decompose at around 560 o C [14,16].…”

“…According to the decomposition kinetics of acetonitrile in nitrogen, acetonitrile is stable at a temperature up to 300 o C [14,17]. Hence, acetonitrile can be recycled at a temperature up to 300 o C. Since 300 o C is the decomposition temperature of acetonitrile, and all the acetonitrile, both adsorbed on the surface and adsorbed into the pores of graphene, The effect of heat treatment at different temperatures on the morphology of the electrode is shown in Figure 4.…”

“…However, as a laminated structure, delamination is the main limitation factor since CFRP laminates are susceptible to crack initiation and propagation along the laminar interfaces, causing severe reduction in inplane strength and stiffness and even catastrophic failure [13]. We previously used wet shredding technology to recycle activated carbon in a activated carbon based electrode, where water is used as the shredding medium [14].…”

Characterization of CNT-MnO2 nanocomposite by electrophoretic deposition as potential electrode for supercapacitor

“…Various energy storage devices offered are a battery and a capacitor [2]. The battery has the disadvantage of having a long lifetime, but has a low power density, meaning that the battery lasts longer but can only contain low power [3].…”