Finnish Battery Gets Hotter, Stronger, Makes Lithium Look Like Sweaty Toddler
KEY POINTS
- •Finnish startup Donut Lab has developed a solid-state battery tested by VTT Technical Research Centre of Finland.
- •Last week’s tests examined fast charging, while this week focused on performance under extreme heat up to 100 degrees Celsius.
- •The solid-state battery not only resisted damage but actually increased its capacity, outshining traditional lithium-ion batteries.
The Finnish startup Donut Lab has apparently cracked the secret to eternal battery youth by crafting a solid-state battery that doesn’t just survive a sauna-level 100°C (that’s 212°F for you Celsius-averse folks), it actually gets more powerful, as proven by the ever-patient state-owned VTT Technical Research Centre of Finland. After a prior test showing uber-fast charging, this week’s heat torture renewed hope for toastier batteries. It’s like their battery does CrossFit in a hot tub while traditional lithium-ion battery cells, poor infants, wilt miserably under milder conditions, begging for a nice cool breeze. Good thing Finland’s got enough who's-had-sauna records to validate this fiery endeavor!
Share the Story
Congrats Donut Lab, your battery survives heat better than my last date’s personality—100°C and still powering up, meanwhile lithium just melts under pressure.
Solid-state battery flexes on lithium-ion by glowing hot and gaining power. What’s next, a charger in a volcano?
Forget Starbucks—this Finnish battery gets stronger the hotter it gets. Someone send it a sauna membership card.
Source: Theverge | Published: 3/2/2026 | Author: Andrew J. Hawkins
More Articles in Technology
Israel Plans To Outlast Hezbollah; Bahrain’s Missile Intercept MVP Leaves One Casualty
6G Promises Flying Cars, Still Can’t Even Give Us Stable Wi-Fi
Barcelona Start-Up Raises Millions To Teach Gamers How To Betray Friends Better
Motorola's Razr Fold Costs More Than Your Rent, Comes With Fancy Pen
Amazon Web Services Fire Caused by Mysterious ‘Objects,’ Still No UFOs Confirmed
Lenovo Unveils Robot Desk Buddy That Judges Your Work Ethic Silently
