the swedes of Volvo they have a very clear conception of what the future is for their brand and how they intend to consolidate themselves in the market — hybridization is the means, but 100% electric mobility is the purpose — having already made its position quite clear towards the commitment to becoming the first brand “zero carbon“, say, carbon neutral in production and other stages of the production process or the value chain.
The battery of first generation Volvo uses double layers of standardized modules. The nickel content of the cathode (the positive nickel-based electrode) increased and dependence on cobalt was reduced; and work is underway to improve the anode (the graphite-based negative electrode) by adding silicon to improve energy density. Volvo hopes these improvements will give its battery second generation, scheduled for 2024, an energy density significantly above 700 Wh per liter.
Volvo’s belief and effort in proving that the batteries in lithium ions there is still a lot to be developed before moving to a more expensive technology — the batteries in solid state — especially after discovering problems (in technology research) behind the development of these new sets of lithic ions that used pure lithium anodes, with the creation of malformations that caused electrocution of the cell.
According to the brand, regardless of the problems, lithium metal anodes would represent an advance in battery design, as well as in energy density that would pass to 1000 Wh per liter, where Volvo says it would come close to current solid-state batteries — a bold statement that Swedish engineers did not want to miss.
Part of the solution to these problems may lie in a new strategic partner of the Swedish construction company, the «Northvolt», which acquired the startup «Cuberg» whose technology behind the new electrolyte that avoids situations like the ones described above and allows to maximize the battery capacity by up to 70% compared to conventional lithium ion sets.
These must be replaced by the third generation that does not require support, becoming a structural part of the vehicle’s chassis, included in aluminum and sealed for the model’s life cycle. In order to guarantee an improvement in thermal management, they have an 800V architecture that guarantees a charging from 10 to 80% in about 15 minutes. This is because the Volvo believes the battery quality is already so high that the exchange already almost a rare occurrence — probably in brand vehicles — and that this allows an increase in autonomy to something between 870 and 950 km.