For years, experts have argued that the EV battery market needs a true breakthrough — most new car models offer similar range to existing ones, and cell efficiency still drops significantly after a few years of use.
Sakuu Corporation may have found the solution. The company reports that its dry electrode manufacturing technology completely eliminates the need for toxic solvents, simplifying production and reducing environmental impact.
According to internal testing, Sakuu’s batteries reached 4,000 full charge-discharge cycles while maintaining about 83% of initial capacity — effectively doubling the lifespan compared to conventional lithium-ion batteries.
But what exactly makes the dry process so promising? Primarily its environmental and economic benefits. Eliminating solvents cuts chemical emissions and improves recyclability. Moreover, longer-lasting batteries could significantly lower the total cost of ownership (TCO) for EVs, making them more competitive with internal combustion cars over time — currently one of the main barriers to mass adoption.
However, the technology still faces major hurdles. The key question is whether the lab results can be replicated in mass production. Dry-electrode manufacturing demands specialized materials and carefully scaled production lines. Many companies experimenting with similar methods note that the main challenge lies not in performance, but in cost efficiency and manufacturing adaptation.
As Karl Littau, Chief Technology Officer at Sakuu, explains, “Dry electrode processing scalability and compatibility with high-performance EV battery chemistries remain critical points.”
If Sakuu’s technology proves scalable, it could provide a major boost to the EV industry — offering automakers longer-lasting, cheaper batteries that improve the economics of electric vehicles and drive greater adoption among consumers and fleet operators alike.