Found a way to increase the efficiency of lithium-ion batteries by 10 times

Representatives of the French company Nawa technologies announced that they have started production electrodes of a new design, which can significantly increase the power of existing battery batteries.

In addition, the new electrodes provide an almost 3-fold increase in density, a 10-fold increase in power, fast charging and a five-fold increased service life.

How did you manage to achieve such indicators

In fact, all ingenious turned out to be a fairly simple solution. And the company said that the electrodes, which it actively uses in the design of the new generation of ultracapacitors, can be easily adapted for use in existing lithium-ion batteries. And what is the essence of the new cathodes, I will now briefly explain.

A few words about new electrodes

If we take an ordinary battery, then an ordinary electrode will be made in it from a special mixture of powders, additives and binders. In those electrodes where carbon nanotubes are used, their chaotic arrangement somewhat complicates and significantly increases the path of ions to the current collector under load.

The company's engineers went the following way: they arranged carbon nanotubes in a strict order and received an orderly design, vaguely reminiscent of a comb with a huge number of straight, highly conductive nanotubes. Then such ordered blocks are covered with an active material (lithium ions, etc.) and you're done.

As a result of this modification of the cathodes, it was possible to significantly reduce the path of lithium ions through the battery. (the distance was reduced from micrometers to nanometers), and this fact became fundamental in such radical changes.

According to the company's engineers, this has significantly increased the specific power of the batteries and now they will be able to deliver up to 10 times more energy. And the charging time is reduced immediately by an order of magnitude.

It turns out that just a five-minute charge of such a battery can provide up to 80% of the battery charge (only with the correct charging infrastructure).

And since the new cathode has a strictly ordered structure, less material is required for its implementation and it turns out that a battery with a given amount of active substance and a new cathode will be much lighter and more compact. And the energy density (in terms of volume and weight) can increase up to three times.

The revision really looks promising and does not seem so costly in comparison with other work in this direction. We still just have to wait for new lithium-ion batteries to appear on the shelves of our stores.

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