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Types Of Batteries And Electrochemical Processes

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Power Distribution& Utilization
Assignment#03
Batteries & Electrochemical Processes
Batteries:
A battery is defined as the combination of one or more electrochemical cells and used to convert the stored chemical energy in to electrical energy.
In 1800, a scientist Volta first invented the battery which is known as voltaic pile. The construction of voltaic pile is the pairs of copper and zinc plates placed on top of each other and separated by a layer of cloth or cardboard dipped in brine known as electrolyte.

Electrochemical Processes:
Electrochemical process is the chemical reaction happen due to movement of electrical current. The process is type of redox reaction in which a loss or gain electron happen between two substances. Many electrochemical
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This type of charger used in nickel cadmium and nickel hydride cells.
Taper Current:
This type charging done from unregulated constant voltage. This type charging is not controlled and the current vanishes the cell voltage. Due to this there would be a cause of cell damaging due to overcharging. To avoid this the rate of charging and duration should be limited.
Pulsed charge:
The pulsed charger provide the current to battery in pulses. The rate of charging is controlled by the width of pulses about one second. During the process of charging milli second’s periods allow the chemical reaction to stabilize and due to this no gas is produced and safe charging is happen.
Electro plating
The Electroplating is the process of a metal coating to a metallic surface by an electrochemical process. The object to be plated is made cathode (negative electrode) of an electrolysis cell through which a direct electric current is passed. The object is dipped in an aqueous solution. The output metal in an oxidized form, either as a cation or a complex ion. The Anode is usually a piece of metal being
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The chemical change is that in which the material loses or gains electron (oxidation or reduction). The process is proceed in an electrolytic cell, an apparatus consisting of positive and negative electrodes placed apart and placed in a solution contains positive and negatively charged ions. The material to be transformed can be form the electrode, may constitute the solution, or may be dissolved in the solution. Electric current enters through the negatively charged electrode (cathode) positively charged components of the solution travel to this electrode, combine with the electrons, and are transformed to neutral elements or molecules. The negatively charged components of the solution travel to the other electrode (anode), release their electrons, and transformed into neutral elements. If the substance which is to be transformed is the electrode, the reaction is generally one in which the electrode dissolves by giving up
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