International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
Development and Characterization of Super capacitor Using Graphene for Small Capacity Energy Storage Applications Sourabh Sidramappa Metre1, Dr. Mahesh M. Wagh2 1 M. Tech., Student, Department of Technology, Shivaji University, Kolhapur, Maharashtra, India 2Professor, Department of Technology, Shivaji University, Kolhapur, Maharashtra, India
---------------------------------------------------------------------***--------------------------------------------------------------------1.1 Supercapacitor Energy Storage Method: Abstract - Super capacitors have attracted a lot of attention due to their efficient energy storage. Compared to batteries, super capacitors have higher capacitance, energy, and power densities per unit mass than conventional capacitors. Carbon-based materials are most promising in super capacitor applications due to their outstanding physical and electrochemical behaviour. This work demonstrated a facile method to synthesize a Nano composite electrode consisting of graphene from rGO and carbon black as active material. It was found that the Nano composite electrode with 80 % graphene, 10 % carbon black and 10% PVDF as binder studied with NMP as solvent and PVP/LiClO4 as a gel-type electrolyte which acts as separator also due to which weight and size reduced compared to aqueous electrolyte super capacitor. It is expected that the current density will be higher than pure graphene-based super capacitors since the carbon black is added, which increases the conductivity of the electrode and also the thermal stability of the super capacitor device. A pouch cell super capacitor was fabricated using above mentioned materials with their proportions on the flexible steel current collector, and performance parameters will be evaluated.
Supercapacitors, often referred to as ultracapacitors or electric double-layer capacitors, are energy storage technologies exhibiting extremely high capacitance and low internal resistance. The separation of charges at the electrode/electrolyte contact serves as the energy storage mechanism in this instance. In contrast to batteries, this device, in particular, has comparatively high energy storage and delivery capacity. A supercapacitor model consists of a separator, two electrodes, and an electrolyte, although the device's performance largely depends on the electrode material. Supercapacitors have flexible packaging, high power, extended life cycle, wide operating ranges (-400C to 77 0C), are lightweight, and require little maintenance
1.2 Applications of a supercapacitor: Modern electrical and electronic equipment has very strict safety requirements for high current, energy, and power requirements. One way to satisfy these excessive demands for high power density is to use capacitors, which emit a lot of energy quickly. Additionally, under ideal circumstances, capacitors can replace batteries in electric vehicle systems by fusing their high power density with the high energy density of batteries. The amount of energy stored as ions between the electrolyte and the electrode is the basis of the supercapacitor's working theory. As renewable energy sources represent a crucial component of such systems, distributed power generating networks and autonomous renewable energy systems are gaining appeal.
Key Words: Super capacitor, grapheme, Energy Storage, ultra capacitors, Charge Discharge
1. INTRODUCTION Due to their adequate energy storage, Supercapacitors have received a lot of interest supercapacitors offer higher capacitance, energy, and power densities per unit mass than traditional capacitors. The most promising materials for supercapacitor applications are Carbon-based materials since they have exceptional physical and electrochemical behaviour. Supercapacitors are used for applications where the requirement of power density is high for a short duration of time, i.e. The areas where there is a need to absorb or bear the high impulse of voltage like a hybrid transportation system, to store the energy generated during regenerative braking system, grid stabilization and nowadays in the critical domains like space and military.
By integrating energy storage devices, such systems' dependability and efficiency can be considerably improved. The usage of supercapacitor-based energy storage systems, which can deliver critical energy bursts for a brief duration, helps to reduce power quality issues. Systems for converting wind energy or P.V. energy storage are necessary to control fluctuations. To handle these variations and keep the output voltage constant, supercapacitors can be utilised as energy storage devices.
However, nano-based materials showed high performance concerning charging ability, capacity, and cyclability. It has the ability to provide more power density and can charge and discharge in a fraction of a second.
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