Ion Battery

How much energy can be obtained from a lithium ion battery in a short period of time?

is dangerous to run a set of 20 minutes instead of hours and drain the battery very quickly. Also, how much energy is available to do this? I saw that you can get 150 watts hours per kilogram for lithium-ion batteries, but if I had, for example, 2 kg of the battery, you can run something for half an hour to drain the entire battery or near it, so I really get 600 watts during those 30 minutes?

It depends on the battery chemistry and the real model of the battery. Typical battery laptop can only be good for a rate of C 2 or 3. The C-rate is a ratio of the amount of current being drawn compared to the capacity of the battery. If you have a 2.3 hours typical cell lithium-amp, which means you can only get safely from 4.6 to 6.9 amps of it before having security problems, overheating and damage to the battery. The latest chemical and construction of the A123 batteries, lithium iron nanophosphate exercises used in 36 volt DeWalt cordless is very promising. Its spec sheet states that security can provide a steady 70 amps, and a short burst of up to 120 amps. The circuit Battery Management prevents you from using the full potential of these packs cordless drill, but if you can get your hands on the cells and create a package, can get very close to what you're asking. One of these cells can put out about 4.6 amps for half an hour to 3.3 volts, and weighs 70 grams. That is an energy 15.2 watt-hours, and you would need 40 such cells in a package to provide 600 watts of half an hour. That package would weigh 2.8 kg before any container or wiring. Looking back on the spelling of all this, unless you need the package to double or triple their time in power, portable regular cells secure that would discharge rate. I tend to work more with electric vehicles, and charges for those who tend to be much higher during peak the hills and acceleration of nominal. Lithium polymer could give a little more energy per unit weight.

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