Samsung labs prototype large solid-state battery

Progress does not stand still, and scientific teams from Samsung Advanced Institute of Technology (SAIT) as well as scientific Samsung Research Institute (SRJ) has developed a high-performance, durable yet all-solid battery.

The new development is smaller than a standard lithium-ion battery. At the same time, the laboratory sample showed that it is quite capable of withstanding up to 1000 discharge-charge cycles and at the same time not losing the original capacity.

Also, tests have shown excellent safety performance.

Why is this technology needed?

In fact, developing solid-state batteries is a very important job. After all, the introduction of such batteries is the next step in the development of modern electronics.

After all, if you remove the liquid electrolyte from modern lithium-ion batteries and replace it with a solid-state one, then it will turn out to create much denser and more compact products that also do an excellent job with heating.

After all, the compact layout and the use of solid materials allows you to use less material for heat dissipation during heating.

Why modern lithium-ion batteries are bad

As you know, the main problem of all modern lithium-ion batteries is the formation of so-called dendrites.

So, during active operation, lithium passes into the metal phase and sooner or later it breaks through the separator and shortens the battery, which leads to a sharp decrease in capacity. And in some cases, even a battery fire.

Scientists from scientific laboratories said they managed to solve this problem.

What was suggested by scientific groups

So it was decided to replace the lithium metal anode with a layer of silver-carbon composite. Moreover, its thickness was only some 5 micrometers.

In this case, a solid sulfide electrolyte and a cathode made of oxides with an increased nickel content were used.

Laboratory samples have been tested at a density of 900 W * h, which is at least twice the energy density of a liquid electrolyte.

At the same time, the prototype created in the laboratory has successfully withstood more than 1000 discharge-charge cycles.

And as calculations have shown, accumulator batteries for electric vehicles assembled on such a basis are capable of powering a car for 800 km.

Development prospects

Certainly Samsung is a world leader in the manufacture of batteries, and their specialists are also the first in this field.

Of course, the development of specialists is still very far from commercial implementation. But the company has serious plans.

The key point will be the final price of the new solid state batteries. If the price is competing with classic lithium-ion batteries, then there is a high probability of their active implementation around the world.

By the way, you can get acquainted with the work done in the magazine Nature energy.

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