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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

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Introduction

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.

Middle

This cell gives about 1.3 volts of electricity, and is used in hearing aids and watches because the battery can be flattened. Primary cells maintain a positive charge on the positive terminal and a negative charge on the negative terminal, month after month. These charges attract another and sometimes manage to get to each other through the battery it self. When this happens the battery loses some energy. This is why batteries lose energy if not used. It is possible to slow this process down by refrigerating batteries. Dry Cell Battery The storage, or secondary cell, which can be recharged by reversing the chemical reaction, was invented in 1859 by the French physicist Gaston Plante. This invention was very crucial because it would revolutionize cars. Instead of crank starts the lead-acid battery was used. The lead-acid, which Plante invented is still the same basic design today. The battery consists of six cells connected in a series, and is used in automobiles.

Conclusion

A disadvantage is that the battery loses a little bit of capacity each time it is charged. In recent years a number of new types of batteries have been designed for use in electric vehicles and other applications. In improving various conventional storage batteries, they have been able to make electric cars and longer lasting batteries. Still there exits some draw backs to these batteries, either short range, high expense, bulkiness, or environmental problems. The U.S Advanced Battery Consortion (USADC) was set up in 1991 to speed up development of new storage batteries. Batteries are being developed that cause no environmental hazards and occupy little space. All this advancement in batteries is wonderful, but we need to see the importance batteries play in the world today. The world is dependent on the battery, from the use in cars to calculators. The battery is one of the few sources of energy that is universal, a Japanese calculator can still work with batteries found in the U.S no electric conversion is needed. This is reason why the battery is so needed and important to the world.

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