Abstract
This research presents the performance analysis of Nickel Metal Hydride (NiMH) rechargeable battery using MATLAB/Simulink. Nickel Metal hydride (NiMH) batteries are used as hydrogen storage material with high hydrogen volumetric capacity and reversible hydrogen absorption/desorption reactions. The study helps contribute to the lingering research gap regarding the NiMH battery. Recent research works conducted on NiMH battery cover areas such as the battery capacity and its memory effect. This research work addresses the charge/discharge characteristics and the battery voltage. The methodology employs the use of a generic battery model which is modeled using the Simulink library materials. Simulation using nickel hydrogen battery model thus makes it possible to analyze the characteristics of chargeability and discharge ability. The result showed that the battery has a nominal voltage of 200 volt. The machine runs at 120 rad/s and the charge and discharge characteristics showed that the battery is least affected by its memory.
Highlights
Rechargeable battery or accumulator is kind of electric battery that can be charged and discharged through a load
The several types of electrode materials and electrolytes are combined in different ways to form different types of rechargeable batteries such Lead–Acid (Pb-Ac), Nickel–Cadmium (Ni-Cd), Nickel–Metal Hydride (Ni-MH), Lithium-Ion (Li-Ion) etc [1]
It is important to estimate State of Charge (SOC) of the batteryaccurately in battery management systems to use the battery efficiently [2].Applications of rechargeable Nickel metal hydride (Ni-MH) battery began with hydrogen storage alloy as negative electrode
Summary
Rechargeable battery or accumulator is kind of electric battery that can be charged and discharged through a load. It is recharged many times as unlike disposable battery and discarded after use. It is an electrochemical cell and termed as accumulator as it accumulates and stores energy through a redox reaction. Ni-MH batteries have received much attention because of their higher energy density, superior charge-discharge characteristics, comparatively less memory effect and reduced polluting nature. Ni-MH batteries have higher gravimetric and volumetric energy densities as compared to Nickel Cadmium (Ni-Cd) batteries of the same size by approximately 30–40% Li-ion batteries are quite expensive as compared to other rechargeable batteries
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