Electric car without recharge

To make it clearer, the greater the capacity of a battery created, the longer the charging time would be. It would then be possible to Create batteries so energetically densely Speaking so that electric cars run tirelessly and without necessary recharge.

Electric car: 1.000 km of autonomy, recharging in two minutes … The innovations that arrive

In “Estelle Midi” this Monday on RMC and RMC Story, Anthony Morel presents the next innovations in the electric car sector, which will make life easier for motorists who make this choice.

Cross France by electric car, in one go, without recharge, it will soon be possible. Autonomy is the big weak point of the electric. But rupture innovations could change everything, with cars that will exceed 1.000 km. It’s a bit of a grail, where in any case a single symbolic that would tip a lot from the world on the electric side, a Paris-Marseille in one load. Several manufacturers are getting there, such as Mercedes and his EQX Vision which has already made 1.200 km in a single load in real conditions, not in the laboratory or on the circuit. Another prototype for the moment but extremely interesting. On the side of standard cars, a Chinese manufacturer boasts of having succeeded, with the Zeekr001, a SUV which uses a new generation of batteries. It should be noted that test standards are not the same as with us (often a little more generous). What is certain is that we are really not far away.

Manufacturers play on several tables. On batteries of course, ultra dense, 30% lighter and 50% less bulky … lithium batteries could be replaced by sodium batteries, a much less rare element (we find them in salt) and less polluting. To reach this threshold of 1.000 km, the manufacturers also rely on aerodynamics, with a drop in water to ensure good air penetration. They add solar panels on the roofs, which give a small bonus of autonomy, but also quite unexpected innovations inside the car. For example, a heating seat belt, which diffuses heat on the entire torso, which avoids using heating in the passenger compartment. By heating key elements such as steering wheel or floor mats rather than the whole car, we have a gain in autonomy of 15 to 20% in winter.

A change of battery in five minutes

Autonomy is one thing, but there is also time spent loading the car. And again, provided you find a terminal. But we are about to cross another symbolic threshold: the 100.000 recharging points in France, 66% more than a year ago. Above all, we see more and more rapid charging stations appear, which make it possible to recharge 80% of the batteries of a small city car in less than half an hour. So from this point of view, things are progressing, even if they are obviously not perfect ..

With also promising innovations. For example, an electric battery that would recover 160 km in two minutes of load. It is an Israeli startup, Storedot, who works on the subject. It could be launched in 2024. Concretely, we would not have to stop more time than in a service station before leaving, which would be revolutionary. Another option: the “battery swap”, which consists in exchanging an empty battery for a full battery. It’s the Chinese company Nio that offers it. It takes the form of porticos found at the roadside. You park, the system will automatically remove your battery and replace it with another, and you can leave. It takes 5 minutes flat.

Last lock, the cost. Even more with the explosion of electricity prices … And there, we cannot do much. But a great thing is developing, what is called bidirectional load systems. In other words, a wall terminal to recharge your car at home, but which works in both directions: you recharge the car, but the car can also power the house or resell part of the electricity to the network. The idea is to recharge the car at night, during off -peak hours. And if you have the battery in the evening during full hours, when there are consumption peaks, to use the electricity of the car to save money, or even to resell it. Clever! This technology called V2G (vehicle to grid, “from the vehicle to the network”), allows both to save money and to ensure stability of the electrical network, to compensate for the intermittent nature of renewable energies ..

Electric car: the battery that no longer needs to be recharged will soon be a reality

Several large teams of international researchers work on a revolutionary battery for electric cars. This could issue more than a million kilometers of autonomy and mark the end of the charging system that we currently know. Of course, all of this remains for the moment theory. But researchers announced that they have made significant progress on the subject.

The main drawback of electric cars rest nowadays The battery charging system, which can be restrictive in some cases. France, for example, has only 16% of European recharge stations. And it can quickly be complicated to find a charging station when you travel by electric car throughout France.

Fortunately, all of this is only temporary. And Recharge stations are growing more and more in the world. Like Tesla, which has just extended its supercharger network everywhere in Europe. However, maybe that in a few years These charging stations for electric cars will be completely obsolete.

Several major international researchers are working in fact at the moment on A revolutionary and futuristic battery, which could reach a million kilometers of autonomy. All this remains of course pure theory, but researchers could well develop this technology in a few years.

The electric cars of the future may no longer need recharging

THE Quantum batteries could indeed change the situation with regard to the future of our electric cars. This is precisely the brand new concept of “super-absorption” that could deliver this crazy autonomy to the future batteries of our electric vehicles. Researchers from the University of Adelaide and several other teams of international researchers have demonstrated This brand new principle of energy storage.

They even went so far as to explain this concept in the scientific journal Science Advances. Researchers have engraved Microcavities on a silicon wafer of several sizes, which contains a different number of organic molecules. Then they loaded these cavities with a laser. And the result is rather surprising.

“The active layer of microcavity contains organic semiconductor materials that store energy. The idea of ​​super-absorption of quantum batteries is that molecules act collectively through a property known as Quantum superposition. As the size of the microcavities and the number of molecules increase, the charging time decreases ”have thus summed up the researchers.

To make it clearer, the greater the capacity of a battery created, the longer the charging time would be. It would then be possible to Create batteries so energetically densely Speaking so that electric cars run tirelessly and without necessary recharge.

For the time being, this principle remains nevertheless to the theory. But researchers continue to work on the subject. And maybe in a few years it will be possible to roll with your electric car, without necessarily going through the recharge box during his life. A real revolution.

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With its Qashqai e-Power, Nissan offers an electric car. which must be reflected

Nissan will launch an unprecedented engine in Europe: a 100% electric car but whose very small battery is recharged directly by a heat engine. No charging port but just a conventional fuel hatch, with the promise of reduced consumption.

Nissan will start in electrification thoroughly. In total, the Japanese brand Allied by Renault plans to release 15 new models in Europe by 2030, all with a hybrid or electric version.

100% electric, hybrid.

The offensive must start this year, in France in particular, with the launch of the Crossover Ariya. A highly anticipated model, at launch upset by Covid’s pandemic, which is based on the same platform as the megane e-tech, but with an external look and an atmosphere inside very different.

On the juke, whose second generation was launched at the end of 2019, it is a new engine that will be proposed, of the non-reloadable hybrid. A well-known technology in France since it is the “e-tech” versions found on the Renault Clio, Captur and soon the Austral, a new SUV which will succeed the Kadjar.

. and a new solution: electric without recharging

But Nissan also arrives with an unprecedented engine in Europe: 100% electric (only the electric motor causes the wheels) but with a heat engine that plays the role of generator. A technology called E-Power, which had been offered for the first time in 2017 on the Nissan Note, only in Japan.

We were able to test this new version of the Qashqai which will be marketed from this summer, to be reported in our program En route for tomorrow number 36, broadcast on April 2.

Like a 100% electric car, the vehicle can start and circulate at low speed, only in “zero emission” mode. But if we accelerate hard, or that electricity is simply missing, a heat engine starts: a 3 cylinder 1.5 -liter fuel block with variable compression turbo. Connected to a generator, it is he who produces the electricity necessary for electrical traction. A fairly different operation of hybrid models, where the heat engine can also ensure traction, in addition or alternative to the electric part.

This original engine recalls the operation of the BMW i3. A 100% electric model, with a port to recharge it, but marketed for a time in a version equipped with an autonomy extension (or “Rex” to “range extender”), a small twin -cylinder engine that can recharge the battery. The 9 -liter tank thus adds about 150 km of autonomy.

Except that on the Nissan E-Power, there is only one fuel hatch, point of recharge. It is only the heat engine that can recharge the battery. The latter proves to be a very limited capacity (2.1 kWh), in order to buffer to store the electricity produced possibly in excess electric motor needs. The heat engine connected to a generator can indeed “supply” the electric motor directly, which can add the energy stored in the battery, on a punctual acceleration need for example.

Electric on a generator, an intelligent solution?

The interest of this technology is precisely in this small battery, which should limit the cost of this engine compared to rechargeable or 100% electric hybrid systems. Nissan has not yet revealed the pricing of his qashqai e-Power but it should not be too far from the Mild-Hybrid petrol version, currently available in two powers of 140 and 158 horsepower, with a starting price at 30.190 euros.

For its part, the E-Power version offers a power of 140 kW (190 horsepower), with the characteristics of an electric pipe, such as a 330 Nm torque available from the start. In addition, overweight is also limited with around 200 kg compared to the Mild-Hybrid version.

Result: a promise of reduced consumption of 20%, or 5.3 liters per 100, against 6.3, just like CO2 emissions, which go from 142 to 119 g/km. The autonomy estimated by Nissan can reach 900 km, much higher than electric models.

The launch of this motorization falls in a certain way at the wrong time for Nissan while the prices of fuels remain at very high levels since the beginning of the year.

But it could however attract certain motorists, with this promise of reduced consumption and the ease of “recharging”, since it is enough to fill up with.