Wednesday , October 20 2021

Learn about electricity – why should batteries not be recharged and emptied completely? / Article / LSM.LV


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

How was the victory of culture in exchange for electricity?

  • 6th century BC in ancient Greece. The yoke discovered static electricity by rubbing a piece of amber into a wool.
  • In 1771, Italian physician Luigi Galvani noticed that the rod came to his foot when he was walking on it.
  • In 1800, the Italian physicist, Alesandro Volta, created the first electric battery.
  • In 1820, André Marie Amper understood how the current magnetic field is affected.
  • In 1831, Michael Faraday discovered electromagnetic induction and laid the foundations for an electric motor.
  • In 1879, the American inventor, Thomas Edison, patented the first incandescent bulb.

It is said that at a time when Faraday had made significant progress in his country's prime minister, the politician asked if he had any use. Faradey then determines – I do not know, but I am convinced that it will be possible to collect taxes.

Meanwhile, in another science, the legendary personality of Nikola Tesla went different – he had the idea of ​​making electricity free for everyone. The basic idea of ​​a Tesla cylinder is that an object in the city center produces electricity, but bulbs or any other non-electrical equipment do not receive the energy required by it. The problem was that the number of users was very small. So the idea of ​​the Tesla wheel at least now seems like an expensive and inefficient way to provide electricity to consumers. Who knows, perhaps the idea of ​​available electricity as wireless Internet is not the right time.

Much better with James M. Maxwell making his ideas go to work. His idea of ​​how a powered magnet generates electricity has made significant progress in the development of culture. The magnet moves electrons like water. Incidentally, the same electricity itself is often used for such a comparison, and where there is water, there is also a current or current and all relevant units of measurement.

Basic principles of electrical physics

What then is the flow of electricity? These are electrons – small particles in small atoms. Some basic principles of physics have to be taken into account to understand why electrons form electricity.

Physicists depict electrons such as balls, which, even though they are, have, although they are very negligible but still attract forces, but unlike others, they have a very strong force of rejection. Since atoms without electrons also have other particles – protons, they interact with each other. Usually, how much does the person have no proton, so much of an electron, and we do not feel any special electrical discharges. Over time, for example, when we rub a surface on the other, we take the electrons from one surface to the other, then the number of particles changes, they begin to attract particles of other objects. And all of this can be measured as electricity.

The electrical charges can be transferred from one surface to the other. For example, this happens every time the hair is emitted, the synthetic clothes, even if they pull the feet to the ground and touch metal objects.

The electromagnetic field, on the other hand, determines whether the electrons will move as a bridging river and form a continuous current or will fly here 50 times per second, generating alternating current.

Exploring energy storage

All types of electricity currently available, apart from solar power, generate alternating current. However, only direct current can accumulate. DC is the form in which energy is stored on batteries and battery types are as diverse as their functions: device operation, the accumulation of energy produced.

The way in which and how the batteries are able to store energy directly depends on the chemical elements in them. The battery charger, on the other hand, affects the behavior of these components. "When we accumulate energy, some of the ions move from one side to the other and the electricity does not flow in. When charging the battery, the ions are aligned on the other side and they wait." We connect the external load and the current starts to flow "said Kristaps Vitols, a researcher at Riga's Institute of Industrial Electronics and Electrical Engineering (RTU), who said it would be the second point of equilibrium in the opposite direction.

When the batteries are empty or do not work, they do not perform the required reactions again so that the particles do not stand in the right places. "It is not okay to throw the battery all the way, because the ions have gone to the other side, they are installed in their place and the more they are there, the more they like to stay there. power can not accumulate so much and can not function so much, "says Vitol.

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

Both of these extreme points degrade the battery, "the investigator explains.

Not long ago, they believed that batteries should not be recharged in part, because then we remember their condition and did not at all try to be complete. It turns out – this is neither the myth nor the truth, because everything is in it from which the batteries are made. "In the past, there were nickel-cadmium batteries, which they remember – if they were half-paid, then only half worked," says Vitol.

In order to further improve the ability of batteries to store energy, the world does not make millions in this industry. In Latvia, Kristaps Vitols is one of those scientists who, looking for the best solutions for batteries, look after them just like a living organism. "There is no electronics, just the chemistry and science of materials that have been created to make batteries last longer, better and cheaper. When they are to be transplanted, cells have to be combined with systems that care for each cell's wellbeing, the investigator explains.

Battery wealth depends on temperature, but in order for electrons to accumulate, they must be able to move.

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