Valve Regulated Lead Acid (VRLA) Batteries | Advantages

What are Valve Regulated Lead Acid (VRLA) Batteries? These batteries are popularly termed as maintenance free lead-acid batteries. Each cell in VRLA battery will have a value (automating operating) to allow the gas to escape if developed by the overcharging the cells and to hinder the entrance of oxygen from the air into the cell. […]

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Advantages & Limitations of Different Energy Storage Systems

In this article, we will compare different energy storage system in terms of their advantages & limitations. The comparison is given in the table. S.No. Energy Storage System Advantages Limitations 1 Li-ion battery 1. It has a high specific energy 2. Light Weight 3. High Cycle life 1. Costly 2. Need Battery Management System 3. […]

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Types of Rechargeable Batteries

Rechargeable batteries are those batteries that can be recharged again after discharge. You can find these batteries in your cordless tools, laptops, computers, cordless phones, and smartphones, etc. Rechargeable Batteries are also called as Secondary batteries. Rechargeable batteries are of four basic types: Nickel-cadmium (Ni-Cd), Nickel metal hydride (Ni-MH) Lithium-ion (Li-Ion) Lithium polymer (Li-Po) These batteries […]

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State of Charge (SOC) & State of Health (SOH)

The State of charge (SOC) has an important role in determining the remaining capacity of the battery pack. Accurate estimation of the SOC is very complex and is difficult to implement, because of limited battery model. Battery State of Health (SOH) is an important indicator of battery’s life. SOH reflects the ability of a battery to deliver […]

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Battery Management System | Ragone Plot

Battery monitoring is vital for most electric vehicles because the safety, operation and even the life of the passengers depend on the battery system. The major function of the battery management system (BMS) is to check and control the status of the battery within their specified safe operating conditions. One of the important parameters that […]

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Nickel Metal Hydride Battery | Working & Advantages

Nickel Metal Hydride (NiMH) Battery The principles in which NiMH cells operate are based on their ability to absorb, release, and transport (move) hydrogen between the electrodes within the cell. Negative Electrode: Metal Hydride such as AB2 (A=titanium and/or Vanadium, B= Zirconium or Nickel, modified with chromium, Cobalt, iron and/or manganese) or AB5 (A = rare […]

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Super Capacitor or Ultra Capacitor

Capacitors use static electricity rather than chemical reactions to store energy. A Capacitor consists of two conducting metal plates with an insulating material called a dielectric in between them. Basically, positive and negative charges build up on the plates and the dielectric (separates two plates) prevents them coming into contact, is what stores the energy. […]

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Lithium-ion Battery | Working & Advantages

Lithium battery offer greatly increased energy density in comparison with other rechargeable batteries such as lead acid batteries, Ni-MH batteries, etc. The lithium batteries are of following types: Lithium polymer batteries Lithium-ion batteries 1. Lithium polymer battery Negative electrode = lithium metal Positive electrode = transition metal intercalation oxide During Discharging In the resulting chemical reaction, […]

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Lead Acid Battery | Working & Advantages

Lead Acid Battery A lead acid battery is an electrochemical device that produces voltage and delivers electrical current. Negative Plate → Spongy lead (active material) Positive Plate → Lead dioxide (active material) Electrolyte → Dilute Sulphuric Acid During Discharging The sulphuric acid (H2SO4) combines with the lead and the lead dioxide to produce lead sulphate (PbSO4) and water, […]

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