Cyclic Voltammetry Analysis Of Carbon-Based Electrochemical Capacitor In 1M H2 SO4

Muhamad Arif, Azizan (2013) Cyclic Voltammetry Analysis Of Carbon-Based Electrochemical Capacitor In 1M H2 SO4. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

With the development of components to miniature sizes, the technology of the energy storage devices become crucial. It is known by fact that batteries cannot be used in high power application due to low power density. The life cycle of the batteries is also short. On the contrary, the electrochemical capacitors (ECs) hold the characteristic of higher power density and longer life cycle compared to batteries. A problem exists when the energy density is low. To solve this problem, researches have been done throughout the years. In this project, the EC is fabricated by using different ratio of carbon weight (activated carbon + graphene) as the electrode material. The electrolyte that functions as the ion carriers are presented by using H2SO4. In addition, the polyvinylidene fluoride (PVDF) is used as a binder while polypropylene (PP) as a separator. Before the EC are characterized, the EC components are assembled in the jig or coin cell according to the arrangements that has been set. Basic DC Voltammetry System is used to conduct the CV analysis. Results discussed in this report include the fabrication of the EC; whereby the parameters that are taken into consideration are the composition of the materials involved in the coating process. CV method is used to analyze the fabricated EC obtained. Parameters including the capacitance value, charge/discharge characteristic and life cycle are included in this report. Scanning Electron Microscope (SEM) is used to analyze the average pore sizes of the carbon materials.

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