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New battery charging technology in 20 seconds

Recently I came across a rather interesting article that tells that soon we will be able to charge our batteries and batteries in 20 seconds , under the cut a rather open review of the article, I think the article will also be interesting to users.

Batteries, despite the development of the entire hi-tech industry, continue to remain at the level of the 90s. They didn’t see a special breakthrough to the masses, but the role of these devices is growing and it already seems that the release of new products is slowed down a bit. But the news of science is still in the price, like the one about the creation of batteries, which need only 20 seconds to recharge.

First of all, of course, scientists want to eliminate problems with the reliability and durability of batteries. But the charging speed is very important. A group of scientists has created a new method, it is also applicable to lithium and nickel batteries.
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Many previous projects sought only to improve lithium power sources. Various methods were used for at least some acceleration of the movement of lithium ions in the depths of the rechargeable battery. But the creators of the new technique offered less limited access to the electrodes, which would more optimally reduce the battery charging time. Moreover, scientists have replaced the lithium transport. Now the main material is the chemical compound LiFePO4.

The principles of an improved method from the University of Illinois suggest that it is absolutely unimportant how fast charged ions rush around in a battery. Engineers have deployed the approach, reducing the distance between the ions and the electrode for instantaneous charge transfer. To reduce the same distance, which has thus decreased, the researchers added “highly structured cathodes”.

If you look inside the battery, there will be miniature polystyrene granules. They also carry out "compression" of ions and actually aim them at a smaller distance. The ions, therefore, are located very close to the cathode, which means that the battery will need only a few minutes to recharge. Visually, the circuit resembles a microgrid, where the spaces between cells are covered with electrolyte.

As a result of development, it turns out a nickel-metal hydride battery with the ability to charge by 75% in just 2.7 seconds, 90% of the volume is reached in 20 seconds . Charging speed, according to the assurances of the developers, is not lost even after 100 charging cycles.

Unfortunately, there is no photo of experienced or any other technology samples :(

A source

Source: https://habr.com/ru/post/116532/


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