A lead-acid cell is made of three basic components: the electrodes (anode + cathode) and electrolyte. The anode is the negative
terminal and the cathode is the positive terminal. Connecting these is the electrolyte which drives the electrochemical reaction
that provides electricity. In a deep-cycle lead-acid cell, the negative plate is made of solid lead, and the positive plate is
made of lead dioxide. Between them is an insulator/separator that prevents them from touching and short circuiting. The
electrolyte in a lead-acid battery is water and sulphuric acid. Three reactions take place when discharging, causing the
composition of these components to change; in turn reducing the available capacity
What is Lead Acid Battery? Introduction: • A battery is a storage device which stores power. • As shown in the figure-1, it contains six cells with each having 2V value. • Materials used are led peroxide (PbO2), sponge led (Pb) and dilute sulfuric acid (H2SO4) • Positive plate of lead acid battery is made of PbO2 which is dark brown hard and brittle substance. • Negative plate of lead acid battery is made of pure led in soft sponge condition (Pb). • Here H2SO4 uses water to acid ratio of 3:1
Benefits or advantages of Lead Acid Battery Following are the benefits or advantages of Lead Acid Battery: ➨It is available in all shapes and sizes. ➨It does not require any maintenance. ➨It is best in terms of reliability and working capabilities. ➨It withstands slow, fast and overcharging. ➨It is capable to withstand long term inactivity with or without solvent. ➨It offers best value for power and energy per KWH. ➨It offers longest life cycle. ➨About 97% of lead can be recycled and reused in new batteries. ➨It is inexpensive and simple to manufacture; low cost per watt-hour ➨It offers low self discharge, which is lowest among rechargeable batteries. ➨It offers good performance at low and high temperature.
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