"VTT's test does show ultra-fast charging capability. It does not, however, address many of the critical details that battery experts consider essential for validating solid-state battery technology, particularly regarding cycle life and performance at the pack level."
"Anyone who does not reveal the chemistry cannot be the real deal. The lack of disclosed chemistry raises fundamental questions about whether Donut Lab's cells are truly solid-state, according to battery experts at leading research institutions."
"Donut Lab's solid-state battery, which will be installed in Verge Motorcycles' EVs in the first quarter of this year, can apparently charge in five minutes, last 100,000 cycles and deliver 400 watt-hours per kilogram of energy density, all while remaining immune from thermal runaway."
Donut Lab, a Finnish startup, commissioned independent testing by VTT Technical Research Centre to validate its solid-state battery claims following skepticism from its CES announcement. The tests demonstrate impressive ultra-fast charging performance, supporting one of the company's key claims. However, battery experts identify significant gaps in the testing data, particularly regarding cycle life and pack-level performance. A critical concern is that Donut Lab has not disclosed its battery chemistry, which experts consider essential for verifying whether the cells are genuinely solid-state. The startup claims its battery can charge in five minutes, sustain 100,000 cycles, and deliver 400 watt-hours per kilogram while preventing thermal runaway.
#solid-state-batteries #electric-vehicle-technology #battery-testing-and-validation #fast-charging #battery-chemistry
Read at insideevs.com
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