Created a new lithium-sulfur battery, which is five times more effective than lithium-ion

 Different scientific groups around the world are tirelessly looking for options for increasingly powerful and safer batteries. Lithium-sulfur batteries were considered promising, but they had a significant drawback, which, according to representatives of MONASH University, they managed to eliminate.

What was the problem with lithium sulfur batteries?

If we compare lithium-sulfur batteries, then their main advantage is a significant large capacity, when compared with similar in size to the most common lithium-ion batteries.

And new sulfur-based batteries allowed smartphones to work for up to 5 days without recharging with heavy use. But here was the main snag.

The whole point was that the sulfur cathode had a significant capacity. Because of this, there were problems with the control of the resulting voltage.

So the increased voltage destroyed the carbon matrix, which is responsible for transporting electrons to insulating sulfur and a polymer binder (which held the two materials together).

And as a result of all this, the battery came into complete disrepair in a very short period of time.
A research team from Monash University has developed the following technology:

The basis was a traditional binding agent, which is responsible for the formation of super strong bonds between the sulfur and the matrix and added special cavities to the design, which began to fill up when the battery was charging and as a result expanded.

So, with the introduction of these voids, laboratory samples of lithium-sulfur batteries showed excellent results. After 200 cycles of full discharge-charge, their efficiency decreased by only 1%.

All necessary patents have already been filed for this technology.

Of course, you can say that we are informed almost once a week about the next breakthrough in the field of energy storage and storage, but it is quite possible that sooner or later the quantity will turn into quality and we will finally see a really effective analogue of an undivided ruling lithium batteries.

Post a Comment