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Finnish Startup Claims Solid-State Battery Breakthrough
11 Apr
Summary
- Donut Lab announced a solid-state battery with fast charging.
- Experts are skeptical due to the startup's lack of prior presence.
- The company aims for production later this year.
A Finnish startup, Donut Lab, has claimed a significant breakthrough in solid-state battery technology, a development long sought after for its potential to revolutionize energy storage. Despite the company's relatively unknown status and lack of prior research publications, they assert their battery offers superior energy density and rapid charging capabilities.
Battery experts remain cautious, pointing to the startup's sudden emergence and the industry's history of elusive solid-state battery advancements. Donut Lab has published third-party test results from VTT Technical Research Centre of Finland to validate their claims, stating the battery is not a disguised supercapacitor.
However, critical data regarding chemistry, density, and cycle life remain unsubstantiated. Donut Lab stated its battery has an energy density of 400Wh per kilogram, can charge in five minutes, and boasts a lifespan of 100,000 cycles, though the cycle count is a design target, not a verified result.
Globally, companies like CATL in China are also advancing solid-state battery technology, with plans for small-scale production by 2027. Other automakers, including Toyota and Honda, are pursuing different solid-state approaches, aiming for practical use in electric vehicles within the next decade.
