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Batteries

             What's a battery? You can think of a battery as a small power plant that converts a chemical reaction into electrical energy. Dry cell batteries are used most often in household and high-tech devices. Various dry cell batteries can differ in several ways, but they all have the same basic components.
             1. Container-a steel can housing the cell's ingredients to form the cathode collector, a part of the electrochemical reaction.
             2. Negative Current Collector-a brass pin in the middle of the cell that conducts electricity to the outside circuit.
             3. Electrodes-where the electrochemical reaction takes place.
             4. Cathode is manganese dioxide mixture and carbon. Cathodes are the electrodes reduced by the electrochemical reaction.
             5. Anode-powdered zinc metal. Anodes are the electrodes that are oxidized.
             6. Electrolytes are a potassium hydroxide solution in water. Electrolytes are the medium for the movement of ions within the cell and actually carry the ionic current inside the battery.
             7. Separator is a non-woven, fibrous fabric that separates the electrodes and holds the electrolyte between electrodes.
             How is a battery built? It all starts with an empty steel can-the battery container. A cathode mix-finely ground powders of manganese dioxide and conductors carrying a naturally occurring positive chemical charge-is molded to the inside wall of the empty container. A separator paper is inserted to keep the cathode from touching the anode. The anode, which carries a negative chemical charge and potassium hydroxide electrolyte, is then pumped into each container. The collector, which acts as the negative (anode) current collector, is inserted into the battery, which is then capped and sealed.
             So, how does it produce electricity? The chemical reaction starts when you insert a battery into a device and complete the circuit. A battery produces power through a chemical reaction. Most chemical reactions produce energy in the form of heat, but by confining chemicals inside the container and controlling the resulting reaction with a separator, batteries produce electrical energy.


Essays Related to Batteries

1. all about batteries

... about dry cells, wet cells, safety, and basic facts. I will get into further detail in these topics also. Here are the basic facts of batteries. Batteries were said to be used by the "partisans" (a tribe in Iran). Alessandro Volta made the discovery of it in the 18th century. When he discovered ... Sodium cell, Mercury-Cadmium cell, Indium cell, bismuth cell, seawater cell, Magnesium cell, Percolate cell, alkaline, mercury cell, Silver-Cadmium cell Aluminum-air cell. Batteries range in sizes from some used in a watch as small as a fingernail, or some 4 used in submarines witch weight thou...

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2. WHICH BATTERY IN RIGHT FOR YOU

... to the positive terminal of the battery then the electrons will travel from the negative side to the positive. (This is very dangerous if done on large batteries). This will make the battery run out of power very fast. You usually plug a battery in to a load. A load is a radio or ... the hydrogen ions in the acid get used up and the battery begins to die. Hypothesis: I predict, if I test all four different brands of batteries, then the Duracell Coppertop will last the longest and be the best for your money. The Duracell Coppertop will dominate the contest by far, because of ... by many...

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3. The Advantages of Electric Automobiles

... vehicles are considered to be "97% cleaner than gasoline powered cars."(SDGE) This even takes into account the emissions from the power plants that generate the electricity to recharge EV batteries. It is much more efficient to control air pollution from a single power plant rather than from many individual automobiles. Electric vehicles with cleaner air as a byproduct, will improve ... drivetrain that exhibits many common amenities, good vehicle performance, style, and low emissions. The lightweight shell of the vehicle is powered by a diesel/electric powerplant, coupled with lead-acid ...

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4. The Electric Vehicle

... to plug the battery into a 110v. ac power source and let it charge for eight to ten hours, the current time it takes to fully charge the present batteries. Fast charging is still in the developmental stage and will work somewhat like a gas station where one pulls in and in t! en minutes the EV will be ... Today the EV mainly uses the lead-acid battery that is used in the gas powered cars for starting. The only difference between the two types of batteries is that the EV battery is designed to be discharged at a very low voltage and then charged up again, while the gas car battery is desi...

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5. Cars

... . In the late 1980's, one of the most e technologically advanced electric cars was the Sunraycer, developed by General Motors Corporation. This experimental car used solar energy to recharge its batteries. More recently, in 1996, General Motors Corporation announced the first modern, mass-produced car designed specifically as an electric car. Also in 1996, the Honda Motor Company introduced another ... electric car, the first with nickel-metal hydride batteries, for sale in the United States. Italian automaker, Fiat, announced it will begin making vehicles with a new, standard-sized batt...

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6. Today's Hybrid Technology

... trying to improve the hybrid's technology. Since most hybrids run on electricity or electricity and little fuel they have to have to have longer lasting batteries. All hybrids run on special batteries that keep them charged and running for hours. The batteries are supposed to be long lasting to stop the problem of having to constantly stop to charge at a power station. Before ... to store renewable energy. This kind of unique source of power for hybrid for lasting batteries keep grasping the attention of researchers, but the point of this is to find long lasting batteries for longer dis...

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7. The way it is done

... saturated with salt water. In spite of the advancements in technology the battery is as primitive as it was when it was first created more that two hundred years ago. Batteries as we all know encompass a lot of room for radical enhancement. Scientists of the Department of Energy's Idaho National Engineering and Environmental laboratory (INEEL) has overcome a colossal barrier to ... battery from running down while it sits on the shelf, consequently overcoming an additional huge obstruction in battery life. MEEP in addition has another attribute that is unique to lithium batteries, the b...

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8. A Future of Technological Discoveries

... development of Graphene is one large advancement that could revolutionize human energy consumption for the future. Major corporation, Tesla Motors, has been rumored to be one company developing new Graphene batteries. The new design will substantially increase the range of Tesla's electric vehicles. Simultaneously, the new car could potentially draw people away from gasoline-powered vehicles, improving CO2 emissions. ... safe, the Graphene battery suitably replaces the inferior, modern lithium-ion battery that's used today. Nanyang professor Rachid Yazami, who co-invented the lithium-grap...

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9. The Battery

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