Today, almost any electric appliance, starting from an uncomplicated children's toy and ending with medical equipment, has the ability to work autonomously with the help of batteries. There are different kinds of chemical sources of current, but the most modern and perfect are lithium batteries, in particular, the size of AAA.
How are they arranged?
They are arranged in the same way as saline and alkaline, the difference is only in the type of electrolyte: the metal body is equipped with two electrodes made of different materials, which, when dissolving, release some potential going to the terminals. The labeling of such batteries necessarily contains the letters "Li", and the size of lithium batteries can be any. In particular, the size of AAA in the people dubbed mizinchikovym.
Advantages of lithium-based batteries:
- A wide range of operating temperatures.
- The usual capacity of lithium batteries is 3200 mAh, but sometimes more.
- Little weight.
- Small self-loading.
- Voltage during operation practically does not fall.
The difference between these indicators depends on what material is used for the cathode. So, it can be lithium-fluorocarbon, lithium-iodine, lithium-copper oxide, etc. Such batteries are used for computer and medical equipment, measuring instruments, cameras, etc.
Can I charge lithium batteries?
Normal batteries are not subject to charge. At best, they will publish a lightweight zilch, and at worst an explosion is possible with all the ensuing consequences. You can charge only rechargeable batteries, which can be easily distinguished from ordinary batteries: the energy intensity on them will be denoted in milliamperes per hour. In addition, they are much more expensive than simple analogues. In addition, you should pay attention to the inscriptions:
- Reshargeable, which means "rechargeable". That is, it is a mini-battery.
- Do not resharge, which means "not rechargeable". That is, it is an ordinary battery.
Like conventional lithium batteries , batteries also have high performance, but due to the fact that they do not have a liquid electrolyte, they are environmentally safe and can have any shape. Due to the high sensitivity to recharging and over-discharge, the charging device must have a charge and discharge limiter. Lithium-ion batteries were replaced by lithium-polymer batteries, in which a gel electrolyte is used. However, while their operation is associated with some difficulties, because for charging you need a special device.