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“Load 400 kilometers in five minutes.”
That was the phrase that starred in the media. Justly. In fact, in Xataka We also cover the news of the last great novelty of Byd, a recharge for electric cars capable of filling the batteries at the same rate as a hose full of gasoline the deposit of a combustion car.
The announcement arrived last March as another sample of to what extent The Chinese electric car is one step ahead. Especially as far as recharge costs and proposals are concerned. Little more than a month later, we have already seen two other proposals that point in the same direction.
China ahead in electric cars recharge
When Byd presented his ultra -grape loaders, we did not imagine that a war on the technology of the recharge of electric cars in such a short time would be opened. As if they already had their prepared proposal and Byd’s announcement had accelerated the plans for their announcement, Catl and Huawei have had to show their cards.
On April 21, the Chinese company Catl He presented his latest innovations in his Tech Day. There they highlighted that they already had a sodium battery (One of the great promises to reduce the electric car) that they hope to produce this year, although in the month of December. They assure that it is an energy accumulator especially resistant to cold, Another problem of this type of technology.
And although they put the focus on their batteries for plug -in hybrids with autonomies of 1,500 kilometers adding what was contributed by the battery and the combustion engine, the most interesting thing was the presentation of a battery that can assume the 520 kilometers recharge in five minutes.
After the presentation of Byd, From catl They rose the commitment to an energy accumulator capable of supporting 1.3 MWh loads. That is, an amount slightly higher than that presented by Byd, leaving the figure in 2.5 kilometers loaded per second.
In addition, Catl not only boasted of a Recharge extremely fastit also made it clear that they were able to sustain this power at a temperature of 10 degrees below zero, from 5% to 80% of the total capacity in just 15 minutes. And they stressed that it is capable of delivering 830 kW of power (more than 1,000 hp) even when electricity is very close to completely running out.
Keep in mind that the speed shown in the homologations of an electric car can differ slightly depending on the load with which the battery has. If the battery is low of loading, it usually delivers less power, the recovery or accelerations from slower standing are.
These batteries, just like those of Byd, have the problem that to load that power they need a charger that can deliver that stream of energy. To do this, in ByD they say they will deploy their own network of loaders, with 4,000 recharge points capable of delivering up to 1,360 kW of power. To do this, loaders use a liquid cooling system and, to get an idea, they are figures higher than those announced so far to load electric trucks.
However, these figures are lower than shown by Huawei during the presentation of its new loaders for electric cars. The Chinese company presented its new plugs, capable of delivering 1.5 MW or 20 kWh of energy at minute. That is, with the right conditions and battery, a car could load 500 kilometers of autonomy in five minutes.
Huawei states that he is able to sustain this power for 15 minutes with his new loaders, which makes them especially interesting for electric trucks. In addition, they say they can operate this power between -30ºC and 60ºC and have a dynamic management of the load delivered so as not to saturate the network and balance the power delivered to the maximum possible without knocking down the electrical installation.
The biggest problem of this type of loaders is that they need a huge space for installation but, saved this obstacle, except for exceptions such as byd there are no cars capable of supporting this power. Right now, the fastest recharging vehicles do between 250 and 300 kW so there are no cars that benefit from them.
And, despite everything, with that power a car with a battery of 100 kWh (of the largest in the market), would be passed from 10 to 80% of the autonomy available in about 14 minutes. With that 70% of recharged autonomy in less than a quarter of an hour, a car of that size would be recovering about 350 real kilometers if it meets a realistic consumption of 20 kWh/100 km.
Interesting? There are doubts that such a high load power is interesting from a purely practical point of view. This same idea is what they hold from Mercedeswho ensure that current standards are more than enough but make it clear that they are aware of the importance of offering this warranty To customers.
It is not so much a substantial improvement of what is already had as a positive reinforcement to the client. Entering the fight for offering the most advanced loaders in the market is a brand image, demonstrating that you are at the forefront and give the customer a more purchase incentive although, finally, never use it or do it very promptly.
Photo | Catl and Byd
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