Lithium Ion Battery Lab Report

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Should Lithium-ion battery be used widely as rechargeable battery in torchlights compared to disposable alkaline battery?

Battery is a device containing one or more electrochemical cells that convert stored chemical energy into electrical energy. Every battery has a cathode, or positive plate, and an anode, or negative plate. These electrodes are separated and are usually immersed in electrolyte that allows the movement of ions as the electron flows between the positive and negative terminals. The very basic operating principle of a battery is shown on the diagram below.

The diagram of a simple cell.

The anode and cathode of the battery is made up of two different types of metals. The metal with higher electronegativity becomes the cathode whereas the metal with lower electronegativity becomes the anode and are immersed in electrolyte. This provides potential difference
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Lithium-ion batteries has been developing and improvised continuously after being introduced commercially in 1991. At present, lithium-ion batteries uses lithium vanadium phosphate as the energy efficiency is much more improved in the forward and reverse reaction compared to other lithium compounds that has been used before.

The working principle of a rechargeable Lithium ion does not differ much from an alkaline battery. However, the process of converting chemical energy to electrical energy during discharging of a rechargeable battery produces product that can later be used for the reversed reaction which is the process of converting electrical energy to chemical energy. In simpler manner, the reaction in a rechargeable battery is reversible.

The diagram shows the working principle of charging and discharging of a Lithium ion

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