Sunday , August 1 2021

Learn about electricity – why should the batteries be fully charged and not drained? / Article / LSM.LV



The world is working to improve the battery's ability to store energy. Kristaps Vitols, a researcher in Latvia, is also interested in this. In the LTV publication, the Cognitive Impulse says that the battery life should not be fully charged and should not be fully discharged.

What was the victory of civilization for electricity?

  • Ancient Greece in BC. The yoke discovered static electricity by rubbing against a piece of wool amber.
  • In 1771, the Italian physician Luigi Galvani observed that when he pressed the bar, he was trapped inside the leg.
  • In 1800, the Italian physicist Alesandro Volta created the first electric battery.
  • In 1820, André Marie Amper realized how the current magnetic field was affected.
  • In 1831 Michael Faraday discovered the electromagnetic induction and laid the foundations for the creation of an electric motor.
  • In 1879, the American inventor Thomas Edison patented the first incandescent bulb.

Faraday is said to have asked the politician if he has any use at a time when he is showing a breakthrough to his country's prime minister. Faradey was then determined – I don't know, but I believe it would be possible to collect taxes.

Meanwhile, in another science, Nicholas Tesla's legendary personality went in a different way – he had the idea of ​​generating electricity for everyone. The basic idea of ​​the Tesla reel is that an object in the city center produces electricity, but bulbs or any non-radio electrical equipment takes the necessary energy. The problem was that the number of users was too small. So, Tesla's real idea seems to be an expensive and ineffective way to provide electricity to consumers at least now. Who knows, maybe the wireless internet is not the right time to the current electricity idea.

It's much better when James M. Maxwell put his ideas into work. The idea of ​​how a moving magnet produces electricity made a major leap in the development of civilization. The magnet moves electrons like water. By the way, exactly the same electricity is used for such a comparison, and where there is water, there is also a current or current and all related measurement units.

Basic principles of electrical physics

Then what is the flow of electricity? These are electrons – small particles in small atoms. To understand why electrons are generated like electricity, some basic physics principles should be considered.

Physicists, electrons, as in any case, very negligible but still have the power of attraction, but unlike the others with a very obvious rejection power shows as balls. Protons interact with each other, since no electrons have other particles. Generally, there are no protons in the atom, no electrons, and we do not feel special electrical discharges. For example, by rubbing one surface to the other, it takes electrons from one surface to another, and as the number of particles changes, they begin to pick up particles of other objects. And all this can be measured as electricity.

Electricity charges can be transferred from one surface to another. For example, this is always the case when the hair is spread, synthetic clothing, pulling the feet on the ground and touching metal objects.

On the other hand, the electromagnetic field determines whether the electrons will act as a bridge that acts as a bridge and produces direct current or that they will fly 50 times per second to produce alternating current.

Exploring the energy storage area

With the exception of solar energy, any current power generation produces alternating current. However, only the direct current can accumulate. Direct current is the form in which energy is stored in batteries, and the battery types vary according to their task: to operate the devices, to accumulate the generated energy.

How much and how much energy the batteries can store depends directly on the chemical elements within them. On the other hand, the battery charger affects the behavior of these elements. Iye When we accumulate energy, some of the ions pass from one side to the other and the electricity does not flow. When charging the battery, the ions align and wait on the other side. We connect the external load and the current starts to flow in the opposite direction and the ions move backwards. That's why they're at the second equilibrium point. "Says. Kristaps Vitols is a researcher at the Institute of Industrial Electronics and Electrical Engineering at the Technical University of Riga (RTU).

When the batteries are discharged or do not perform their tasks, they do not perform the required reactions again, so the particles do not stand in the correct places. "It is not right to throw the battery to the end, because the ions have moved to the other side, they are in place, and they want to stay there for how long they are. The batteries then begin to decrease.

This means that the battery should not be fully charged and should not be fully discharged. "In one case, the ions are on one side and the other on the other.

Both endpoints disrupt the battery, "explains the researcher.

A long time ago, it was believed that the batteries should not be partially charged, because they then metaphorically remembered their conditions and did not fill up at all. This is emerging – neither myth nor reality, because everything lies in the place where the batteries are made. "The devices built into devices such as lithium-ion batteries do not have the memory effect. Vitol, in the past, had recalled nickel-cadmium batteries – if they were semi-charged, only half worked.

To further increase the ability of batteries to store energy, the world does not create millions in this sector. In Latvia, Kristaps Vitols is one of those scientists who care for the best battery solutions, just like a living organism. "No electronics, just chemistry and materials science, have been put together to make the batteries last longer, better, and cheaper. If transplanted, cells must be combined with schemes that ensure the well-being of every cell," the researcher explains.

The richness of the battery depends on the temperature, but they must be able to move in order to have the electrons they accumulate.


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