L’atelier 4.20 by Arkema – Innovation supporting the automotive industry

L’atelier 4.20 by Arkema – Innovation supporting the automotive industry


Hello, welcome to Arkema
for a new episode of L’atelier 4.20. Nowadays, to reduce
its impact on the environment, the automotive industry must use increasingly
technical and innovative materials. And this is where we step in! Bodywork, optics,
interiors, engine block… Our products are everywhere and this interactive application
will help us locate them. Let’s start with the rear lights. They are made of Altuglas®,
a very transparent, lightweight and resistant
acrylic glass. It lets 92% of light rays
pass through it, therefore more than glass. On top of that,
it is 100% recyclable. What else? Well, now you ask, our
famous Encor® resin. This is an aqueous emulsion
—so water-based— that gives the paint the qualities
of a solvent-based paint: it is cold, heat and
rain resistant, but it is solvent-free. It’s better for your health
and the environment. Should we have a look
under the hood now? Yes of course, just long enough
to remove the bodywork and access the engine block. Here, we can see Rilsan® HT. This is a polyamide
of bio-based origin designed by Arkema
to replace metal in applications subjected
to high temperatures, like engine pipes,
for example. Just as resistant, Rilsan® is much lighter
than steel or aluminum. Therefore, lighter means
less energy consumption, so less pollution. Speaking of consumption, now imagine this car is
either electric or hybrid. It would then use
a lithium-ion battery and to optimize the operation
of this battery, we have another
Arkema product, Kynar® PVDF:
a high-performance polymer. This is what a lithium-ion battery
in a cellphone looks like; in a car,
it works the same way. To truly understand what’s coming up,
here’s a quick reminder: a battery is a mini factory
where chemical reactions produce electricity. Two electrodes—a cathode and an anode—
are immersed in a conductive liquid, the electrolyte. In the middle, the separator
prevents them from touching. When you connect
a battery to a device, the ions—represented here
by these little beads— flow from one electrode to the other,
thus producing electricity. After a while,
the battery runs out; to recharge it,
the process is reversed and then, the ions migrate
from the cathode to the anode. Two things should be mentioned here: – Ions flow
and distribute themselves chaotically – Moreover, they pass through the stressed
separator, which is eventually worn out. The wear of this chaotic flow
has two consequences for the batteries: they lose power
and discharge quickly. So, all this
is a bit complex, but the bottom line
is that thanks to the Kynar® applied to the electrodes
and the separator, a chaotic pattern turns into
an orderly pattern. Therefore, the battery has
more power, runs down slower, and has a longer lifespan. Today, about a third of
lithium-ion batteries in the world contain our Kynar®. Getting back to cars, we are very far from having
explored all our applications. If you are interested
in hearing more, go to L’atelier 4.20, where you can
check them out. Ah! Hello? Yeah. Ok, I’ll write that down… Hello?! Hello? There you go! Someone else who doesn’t
have Kynar® in their battery.

2 thoughts on “L’atelier 4.20 by Arkema – Innovation supporting the automotive industry

  1. Quand on gagne 100 kg sur le poids d'une voiture, on économise jusqu'à 0,4 litres aux 100 km, mais surtout, on pollue 10g de CO2 en moins par km !!!
    Nos chercheurs travaillent sans relâche pour permettre d'alléger les transports …
    « Light is right »

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