Carlos Gonzalez

03/01/2024

The Swiss company  nanoFLOWCELL is behind the development of  flow batteries . A technology based on two liquid electrolytes of metallic salts that, through a  redox reaction , generate the electrical energy necessary for the electric motor of a vehicle to operate. The company’s data points to an  energy density 20 times higher  – gravimetric energy density – so that they have already been able to reach  2,000 km of maximum autonomy  and with other very promising results.

  La industria del coche eléctrico está trabajando a marchas forzadas por traer las  solid-state batteries as soon as possible , because they promise a  much higher autonomy  than the current lithium batteries based on liquid electrolytes can offer. But this technology also promises  less degradation  resulting from the formation of dendrites, a lower risk of fire and also a  faster charging capacity . However, batteries with solid electrolyte are not the only ones in development and, in fact, this  flow battery  is capable of  exceeding its expected potential  . We are talking about up to  2,000 km of autonomy  and, along the way, solving many other problems of current batteries.

In reality,  there is no significant news  in the development of this  flow battery , which we have been aware of for  about ten years , beyond the fact that the company continues to make  relatively important technical  improvements  and, above all, stability and durability  tests. The latest  news they have reported is the presence of the  QUANTiNO twentyfive,  its prototype of an electric car with  a flow battery , at the Top Marques in Monaco. There, interested parties have been able to see what this unique electric car is like, whose greatest attraction is  this innovative battery  that promises to reach  up to 2,000 km of autonomy.

As I was saying, this  unique battery  is based on two  liquid electrolytes made of metal salts , one positive and one negative, which produces a  redox reaction  in the exchange and as a result the  electrical energy  that powers the electric drivetrain of the QUANTiNO twentyfive is generated. It is a  non-flammable , harmless system that also offers  20 times more gravimetric energy density  than current lithium-ion batteries with liquid electrolytes. And this, obviously, is what explains why  such a high autonomy can be achieved in a relatively small car  and, in addition, with a  contained weight .

Not only does it solve the limitations of autonomy, but it also  charges as quickly as a gasoline or diesel , because only the positive and negative liquid electrolyte tanks have to be filled. Unlike what happens with fuel cell vehicles, powered by hydrogen, it does not require  high pressure  either when refueling, or when storing or transporting the liquid. By the way, the company explains that it is not toxic either.

In recent times they have been working on demonstrating the  high reliability  of this system. And according to the data they have provided so far, it has been proven that it can  work for more than 10,000 hours  without significant wear on the pumps or membranes. This, in easier to understand figures, translates into  more than 350,000 kilometers  on the odometer without significant losses. In fact, the system does not seem to suffer from a  progressive loss of autonomy , as has been proven to occur in electric cars. However, it does not seem that there is excessive interest on the part of the major brands.

11/30/2024