Scientific breakthrough could enable electric cars to travel 1,000 km on a single charge

Scientists used an inexpensive material to improve battery performance.

One of the challenges in the transition from gasoline cars to electric vehicles is range. After all, electric cars can now only travel a few hundred kilometers on a single charge. The authors of the study published in the journal Advanced Science say they have a formula that will significantly increase the range. Scientists claim they could increase the average range of electric vehicles to 1,000 km per charge or even more. IFLScience writes that the secret of the formula lies in such an element as silicon.

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Silicon is considered a good element for making batteries due to its wide availability. However, the expansion feature of silicone during charging is not very good. Silicon cells can expand up to three times their size during charging and then shrink back down. That’s why engineers don’t really like highly expanded battery cells, no matter how good they are.

For this reason, using silicon in batteries as nanoparticles provides them with many advantages while also reducing their disadvantages. However, the production of these nanoparticles is a very complex and costly process.

The authors of the new study decided to work with silicon particles, which are about 1,000 times larger than nanoparticles. They are easier to produce and have higher energy density. But the main problem remained – expansion of silicon during battery charging. But scientists have found a way out.

The researchers used a gel polymer electrolyte that can deform during charging due to changes in the size of the silicon. But simply inserting silicone particles into the gel will not work; They must bond at a chemical level. Therefore, the gel and microparticle mixture was irradiated with an electron beam. This allowed covalent bonds to form between them; this provided better stability while also softening the effects of expansion.

As a result, scientists produced more stable batteries with similar properties to traditional lithium-ion batteries, but with a 40% increase in energy density. Scientists say new research brings them closer to creating a stable lithium-ion battery with high energy density. The authors of the study believe that the manufacturing process of such a battery is so simple that the method is ready for use. Now we will see how this method will actually work on a full-size battery.

As I already wrote FocusA new discovery by physicists challenges quantum theory. Scientists have discovered a discrepancy between observations and predictions about the behavior of subatomic particles that could lead to a change in the understanding of the quantum world.

Moreover Focus He wrote that scientists managed to obtain isotopes of rare earth elements previously unknown to science. According to scientists, this discovery will help understand the creation processes of heavy chemical elements in the Universe.

Source: Focus


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