Inside Of A Battery
Life has become impossible without the use of batteries. They are in all major electric appliances and products that we have today. A battery works on the mechanism of electrochemical changes. This involves change of chemical energy into electrical energy. |
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To understand what goes on inside of a battery, imagine it as a small power plant that is being used to generate energy. It’s a pack that contains the composites that go into the making of a battery; a container, a cathode, an anode, separators, electrodes, an electrolyte and a collector. A container is what contains the ingredients of the cell; a cathode is an electrode that is reduction by electrochemical reaction; an anode is an electrode oxidized by the same reaction; the electrodes that are the seat of chemical reactions taking place inside the cell; the electrodes are separated by a fibrous fabric called the separator; electrolyte is the solution that allows the spurge of ions in the cell and transfers the ionic current to the inside of the battery; a collector is a brass pin that is placed in the middle of the cell and carries electricity to the outside circuit.
On the outside of the battery are visible two ends marked +ve and –ve. When a wire is connected between the two terminals, electrons flow from one end to the other. The flow is from the negative to the positive terminal. This is a very fast surge and involves the danger of the battery running out soon. To control it, a device like light bulb or a small motor should be connected with the wire. For the chemical reaction to take place inside the battery, the electrons should travel from the negative to the positive end. More and more electrons are produced as a result of the chemical reaction.
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Batteries might have been used in the olden times but the recorded proof of invention of the first battery is mainly attributed to Count Alessandro Volta. He was an Italian physicist who in 1800 built the first voltaic pile. He conducted this experiment to generate electricity. 
