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Batteries and Their Importance- We use batteries everyday we use them to start our cars and to listen to our Walkmans I have a few questions How do batteries work What are the different kinds of batteries Why do they die Why do they lose energy when they are not used for a long time Well I tried my best to find the best answers for these questions and a little more Battery also called an electric cell is a device that converts chemical energy into electricity All batteries contain an electrolyte a positive electrode and a negative electrode There are two general types of batteries Batteries in which chemicals cannot be reconstituted into their original form once their energy have been converted these are called primary cells Batteries in which the chemicals can be reconstituted by passing an electric current through them in the opposite direction are known as secondary cells are rechargeable cells The primary battery is the most common type of battery used today invented by the French chemist Geoges Leclanche in the late 1860s At the time this invention was very important and helped the start of the industrial revolution It allowed people with portable electricity This popular invention was called the dry cell or flashlight battery The Lechlanche cell is very similar to the dry cell we use today The positive pole is a rode of carbon embedded in a black manganese dioxide MnO2 and Carbon particles and the negative electrode is made of zinc The electrolyte consists of a mixture of ammonium chloride and zinc chloride made into a paste This sits in between the negative and positive electrodes which acts as an ionic conductor When the cell is in use
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