Porsche is confident that it will be able to produce electric cars in the medium term Range of over 1,300km per charge, Although the German manufacturer is working on its own solid electrolyte batteries, which are considered the Holy Grail of the industry due to their high energy density, this technology will not be needed to achieve this range.
Porsche’s plans come to fruition Customize your battery’s anode, swapping out graphite for silicon, which provides 10 times more storage capacity. Furthermore, cells equipped with this type of electrode should be able to charge in less than 15 minutes (5–80%), a truly competitive figure.
The main problem with this option is that the silicon particles expand by up to 300% when they absorb lithium, which negatively affects battery life. because of this reason, Porsche is developing a hybrid anode with 80% silicon, In parallel, the nickel percentage of the cathode is also increasing.
“In the medium term, we can expect that the combination of the new anode chemistry with the denser packing of the cells will allow a range of 1,300 km”claims that maximilian fichtnerDirector of the Helmholtz-Institut Ulm and Head of the Energy Storage Systems Research Unit at the Karlsruhe Institute of Technology.
“On the current Taycan, charging from 5 to 80% can achieve a charge time of 22.5 minutes”tell for your part marcus grafDirector of Operations at Salesforce Group, whose majority shareholder is precisely Porsche. “With silicon as the anode material, values ​​of less than 15 min can be achieved in the medium term and significantly lower in the long term.”
falco scaptureThe commercial and technical director of the MEET (Münster Electrochemical Energy Technology) Battery Research Center at the University of Münster believes that “We will see growth in the 30-50% range for premium vehicles in future. Much more important than increasing the range is the ability to charge faster.”
As we indicated at the beginning of the article, Porsche is also devoting resources to solid electrolyte batteries, which could offer 50% higher energy density And even less charging time. Due to the high power that will be required (more than 500 kW) as these solutions are deployed, it will be necessary to install stations with active cooling systems.
