What's Happening?
Donut Lab, a Finnish startup, has released the first independent test results of its solid-state battery, showcasing its rapid charging capabilities. Conducted by the VTT Technical Research Centre of Finland, the tests revealed that the battery could
charge from 0 to 80% in approximately 9.5 minutes, maintaining 100% capacity. In another test, the battery achieved the same charge in about 4.5 minutes with 99% capacity retention. Solid-state batteries, known for their potential to revolutionize energy storage, have been challenging to develop at scale. Donut Lab's battery uses a dry conductive material, avoiding the thermal issues associated with traditional lithium-ion batteries.
Why It's Important?
The successful test of Donut Lab's solid-state battery represents a potential breakthrough in electric vehicle technology, promising significantly reduced charging times compared to current lithium-ion batteries. This advancement could transform the EV charging experience, making it comparable to refueling a gasoline vehicle. The battery's ability to maintain capacity under rapid charging conditions could lead to longer-lasting and more efficient EVs, potentially accelerating the adoption of electric vehicles and impacting the automotive industry's future.
What's Next?
Donut Lab plans to continue testing and refining its solid-state battery technology. The company aims to address remaining challenges, such as the dendrite issue, which can cause electrical shorts in solid-state batteries. Further independent tests are expected as part of Donut Lab's 'I Donut Believe' series, which will provide more insights into the battery's performance and reliability. The successful commercialization of this technology could lead to partnerships with major automotive manufacturers and influence the future design of electric vehicles.









