The present paper describes the fabrication and electrical characterization of printed capacitors using polyvinylphenol
(PVP) as dielectric. The recently developed drop-on-demand inkjet printing technology was used to fabricate the
components. The printing ink SunTronic EMD 5603 with silver nanoparticles was used to deposit the capacitors’ plates.
Two different types of structures have been produced. One structure has a single layer of PVP dielectric material, while
the second capacitor has two layers of insulating material. The aim of the work was to determine the influence of the
dielectric thickness on the overall capacity of the device. The structures were submitted to thermal curing treatment prior to measurements. The measured capacity of the devices ranges from 40pF to 400pF depending on the thickness of the dielectric layer.
Nowadays the battery of choice for an electric vehicle (EV) is the Li-Ion. To match the range of an internal combustion
powered vehicle, the EV needs a battery capable of delivering 30–50kWh (commonly the standard capacity is 15 to 20
kWh). The present paper represents a study on a proposed hybrid supercapacitor-battery electric system to control a
reversible electric motor used in demanding application or in automotive applications. When an AC electric motor is
used the deceleration energy (power generation control) is recovered and stored in a battery of supercapacitors. The
designed method uses an electronic control module that has minimal electromagnetic interference due to switching of the power semiconductor device as it passes through zero voltage and filtering of conducted emissions. The supercapacitor battery allows rapid storage and release of energy of 300 - 400A if needed without using the energy stored in the battery system increasing its life cycle.
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