Battery Failure Electro Chemistry Essay Research Paper — страница 3

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no longer has a significant impact on its temperature, and therefore must either rely on its own heat or direct sunlight. Space is a great example of this problem and, objects traveling nearer to the sun, or in the suns rays receive high amounts of heat, while objects that are not in the suns rays are extremely cold. The National Aeronautics & Space Administration or NASA was one of the first to tackle this problem. FACTORS THAT CAUSE THE PROBLEM There is but one factor that causes the problem stated. That factor is temperature, and it can be regulated only in the lab, and not anywhere outside of it. The final problem that needs to be solved is not how do we regulate the temperature, but how do we prevent the temperature from affecting the chemicals inside the battery, more

specifically the electrolyte. FACTORS THAT RELATE TO THE PROBLEM The factors that relate to the problems include; the battery s composition and starting voltage, type of battery, length of exposure time to high/low temperature, and drain place upon the battery. First off battery composition varies between types of batteries, for example depending on the electrodes that a battery has, a certain electrolyte is chosen to be put in the battery, thus different chemical reactions take place and also the reaction that the electrolyte has with temperature may vary. Starting voltage may play a role in how long it takes for the battery to become affected by the temperature. The length of the exposure time may also play a role in the battery s operation, if the exposure time is not long

enough there may be not reaction on the battery. Finally, if the battery has a high/low drain place upon itself it may cause the results to be skewed. SOLUTIONS/POSSIBLE EXPIRIMENTS Although there is no remedy for batteries, which have already been made, it is possible to make batteries that can withstand extreme temperatures. Possible experiment to see which battery performs the best/worst under extreme conditions could be: 1. Measure at different temperature the voltage output of a battery. 2. Use batteries in different temperatures outside. Of course when looking at the two experiments the second is more likely to be that of a younger child, but essentially that is what we want to do: test the battery as if it were in those everyday conditions. A more scientific approach is to

have a controlled experiment in which, we control our variable(s). HYPOTHESIS From research that I have been conducting I have pieced together this hypothesis: Once the battery s temperature rises the EMF will increase, the when temperature continues to rise the EMF will fall, when the temperature decreases the battery s EMF will decrease rapidly.