For my science report--- what do batteries run on?
457881
i think its acid..........The kind of batteries you have in your toys and CD player are wrapped in nickel-plated steel. This steel case has a thin plastic coating on the outside. Inside are the three main parts of a battery: the anode, the cathode, and electrolyte. The anode is made of zinc metal, and electricity travels from the anode through a circuit back to the cathode. The cathode is made of manganese dioxide and graphite. The electricity then passes back to the anode through the electrolyte, which is a salt and water solution. Batteries may have other parts inside made of plastic, brass, and other materials. For a look inside a battery, check out this Duracell page. For more information about the shocking world of electricity, explore the Yahooligans! Electricity category.
249044
"Their intention is to try to make them last longer prior to use. I think everybody has had the experience of putting a bunch of batteries in a flashlight and then putting it in the trunk of their car, and they go back when they need the flashlight and it doesn’t work. Because just on standing, batteries actually deplete themselves. So the idea is that there’s a certain amount of chemical inside—it’s a chemical reaction that’s taking place in the battery—and the chemicals basically get used up. They basically just run out of active material.\n\nMost chemical reactions are affected by temperature, and the lower the temperature the slower the chemical reaction. So what people are trying to do is slow down the self-depletion mechanisms of the batteries by keeping them cold.\n\nIn general, it does extend the battery’s life. Whether there’s a significant difference that would be measurable to the consumer between room temperature and a refrigerator.... To be honest, I don’t know. But in general it does work—that if batteries are kept cooler while they’re not in use it will extend their shelf life.\n\nSo then what about the freezer? Is it even better?\n\nI think one would have to be careful about that. Because it’s the freezer, and the freezer is quite cold. Depending upon the type of batteries, you can actually freeze some of the internal components, and that would not be good. So probably the refrigerator is a safe bet and it will improve things a little bit.\n\nWhat if there are batteries that you’ve been using but will not use again for a while. Would placing them in the fridge in the meantime help at all?\n\nYeah, if you plan on storing them for a long time, it probably would. I think typically people put them in the refrigerator before use. Certainly people should not try to use the battery or activate the battery while it’s cold. It may not work very well. But if they let it warm up before they use it, it should help. \n\nWhat about batteries that are starting to run low?\n\n\nNo, that won’t help. When they start to run low they’re basically used up."
992966
Hardware, it's happening now. The people who invent a new way to store data, better batteries and can combine devices into a single unit. \n\nThe first person to triple the best batteries we have now and make it twice as small will be the next billionaire. Investing in hardware companies is the brightest solution.
595876
Among various thin-film technologies, Lithium and Li-ion batteries are set to become the next-generation batteries. These solid state batteries can be deposited on any substrate from polymers to ceramics to silicon upto about ~5um in thickness. They hold promise as embedded power sources enabling new technologies, applications and markets especially for self-powered microsystems.
196083
You should remove the batteries because even if they are not used, the chemicals in the battery can eat through the housing and damage the device.\n\nAlso, the chemicals in the batteries have a "shelf-life" where they will react slowly even if there is no electrical discharge.
1150929
Take a look at your electric bill.  It will tell you what your average daily electrical consumption is.  You will need some form of electrical production that meets that amount every day.\n\nMost home battery systems use 12 volt batteries connected in series to obtain a high voltage.  Then the batteries are connected to an inverter to produce 120 volts AC.  You can buy inverters that are rated for about 5 kW.  If you have a pair of those, one on each leg of your electrical connection (L1 & L2) it is good for 10 kW of power which should be enough for a most homes.  The reason for being able to handle high power is that sometimes the refrigerator, A/C, stove and TV may be on at the same time and draw a lot of power even if it is for a short time.\n\nThe size of your battery bank will depend on your generating system.  If you can generate continuously, the battery capacity can be reasonably small.  If you are relying on solar and wind energy and have to account for a few days of overcast skies and no wind, the batteries have to be quite large.  Sizing the batteries takes a bit of research.
257927
Photons from the light of the sun strike atoms in a solar cell and cause electrons to move.  This electricity coming out of the cell (assuming a completed circuit) goes to a storage battery and/or an inverter which converts the DC (what batteries and solar cells generate) to AC (which household appliances use).
1146414
http://science.howstuffworks.com/electricity.htm
1042182
A normal chemical battery or pencil cell converts the chemical energy stored in it to electrical energy.The reactions between zinc and copper sulphate produces the reqiured energy.\nAbout stryroform...well frankly speaking I dont have the slightest idea...but u can try \nwww.answers.com\nmaybe it will help u
709887
The battery voltage is mainly a function of the metals used for anode and cathode. The lemon merely provides the electrolyte through which the metals can exchange ions. The copper-zinc combination typically used for lemon batteries generates a bit less than a volt.
133057
"A better battery? A better mousetrap." \n\n"Every laptop and cell phone owner I know wants more battery time.  If it works as advertised, we'll soon see laptops with 10 hour batteries."\n\n"Saphion technology is superior because Saphion technology possesses safety and excellent cost/performance characteristics that cathode materials currently used in Lithium-ion batteries do not."
520542
yes they will hold a charge longer.  batteries natually burn off a small amount of energy due to an imperfect storage method.  putting them in a colder environment slows down the chemical reaction responsible for this.
3097
Most computers have a small battery. In many cases, the battery is soldered directly onto the motherboard, but the battery is usually in some sort of holder so it is easy to replace. Computers are not the only things that have a small battery like this -- camcorders and digital cameras often have them, too. Just about any gadget that keeps track of the time will have a battery.\n\nIn your computer (as well as other gadgets), the battery powers a chip called the Real Time Clock (RTC) chip. The RTC is essentially a quartz watch that runs all the time, whether or not the computer has power. The battery powers this clock. When the computer boots up, part of the process is to query the RTC to get the correct time and date. A little quartz clock like this might run for five to seven years off of a small battery. Then it is time to replace the battery.
232279
There are lots of battery technonlogies. The common battery is made of carbon and zinc with an electrolyte that is primarily manganese. But other batteries use nickle/cadmium, nickle/metal hydride, mercury, lead/acid, and lithium compounds. So depends on what battery you are talking about.
207368
there is a software called "accumulator training utility". this utility calibrate the "smart chipset" of a notebook battery.\nit does not work for defective batteries, for older and apple notebooks.\n\nhave a look for this utility on ebay in the category notebook batteries.\n\nin my humble opinion this utility is crap, but could work for batteries that have been always decharged only to 50% before recharging again.
457188
There are Lead Acid type, sealed batteries, Nicad batteries etc, describing all here is difclt, try web sites like wikepedia etc
809942
Here is an idea.\nCompare power supplies by weight, volume and power density using various batteries.\n\nThere are many batteries on the market now, so it might be very educational for you and anyone looking at your project.\n\nConsider using the following batteries:\nLead acid battery\nLithium-ion battery\nLithium ion polymer battery\nNickel-cadmium battery\nNickel metal hydride battery\nMolten salt battery\nSilver-oxide battery\nWater-activated batteries used in radiosondes\n\nYou could compare different AA batteries of different types and costs.\n\nA good starting point for references on batteries is on Wikipedia:\nhttp://en.wikipedia.org/wiki/Batteries\n\nYou might even be able to get a small prototype fuel cell if you ask to work with a battery manufacturer, a research company, or someone like NASA.\n\nYou should start thinking of what kind of a hypothesis you could write to kick of the experiment.  Hint: Don't worry if your experiment fails and you fail to prove your hypothesis. Sometimes the best experiments are failures!\n\nHope this helps!