Tuesday, April 28, 2026
Business - LEVEL1

Donut Lab’s Solid-State Battery Achieves Promising First Test Results

By aimee yang

Finnish company Donut Lab has announced a new battery in Finland. This battery is called a solid-state battery. It can charge much faster than regular batteries.

The VTT Technical Research Centre tested the battery. They found it could charge from 0% to 80% in about 9.5 minutes. In another test, it charged to 80% in about 4.5 minutes. This is much quicker than most lithium-ion batteries.

Solid-state batteries do not use liquid to move energy. This makes them safer and able to hold more energy. This could change how long it takes to charge electric vehicles (EVs).

The VTT team used different methods to keep the battery cool during charging. In one test, the battery got too hot and had to be stopped. The team fixed this by making sure the battery was in better contact with the cooling plate.

Donut Lab’s battery can last 100,000 charging cycles. Most lithium-ion batteries last 1,500 to 3,000 cycles. But the test did not answer all questions. The chemistry of the battery is still uncertain.

Test Your Understanding

Start Quiz

Vocabulary List:
6 words · tap to reveal
ON

Accent

Solid-state/ˈsɒlɪd-steɪt/adjective
Referring to a type of battery that uses solid electrodes and a solid electrolyte.

Charge/tʃɑːrdʒ/verb
To supply energy to a device.

Cycles/ˈsaɪkəlz/noun
A series of events that are repeated regularly in this context referring to the number of charge and discharge processes a battery can undergo.

Chemistry/ˈkɛmɪstri/noun
The branch of science that studies the composition structure properties and change of matter.

Energy/ˈɛnərdʒi/noun
The capacity to do work or produce change; in this context energy refers to the power stored in batteries.

Cooling/ˈkuːlɪŋ/noun
The process of reducing temperature especially to maintain optimal functioning in a device.
Vocabulary Learning

How much do you know?

What type of battery has Donut Lab announced?
Lithium-ion battery
Solid-state battery
Nickel-cadmium battery
Lead-acid battery
How long did it take for the battery to charge from 0% to 80% in one of the tests?
4.5 minutes
9.5 minutes
15 minutes
10 minutes
What is one advantage of solid-state batteries?
They are much heavier
They use liquid to move energy
They can hold more energy
They are less safe
What method did the VTT team use during testing?
Heating the battery
Keeping the battery cool
Using more liquid
Removing the cooling plate
How many charging cycles can Donut Lab's battery last?
1,500
3,000
100,000
10,000
What is the main drawback mentioned in the testing?
The battery is too light
The chemistry of the battery is uncertain
The battery charges too slowly
The battery is too expensive
Donut Lab's solid-state battery can charge faster than regular batteries.
Solid-state batteries use liquid to transfer energy.
The VTT Technical Research Centre is based in Sweden.
Most lithium-ion batteries last significantly fewer cycles than Donut Lab's battery.
The VTT team faced no problems while testing the battery.
The battery can charge to 80% in about 4.5 minutes.
The battery from Donut Lab is called a solid-state .
It took about minutes to charge from 0% to 80%.
Solid-state batteries do not use to move energy.
Donut Lab's battery can last charging cycles.
The VTT team adjusted the battery to improve contact with the plate.
The chemistry of the battery is still .
This question is required
aimee yang
aimee yanghttps://esl-news.com

Test Your Understanding

Start Quiz
Vocabulary List:
6 words · tap to reveal
ON
Accent
Solid-state/ˈsɒlɪd-steɪt/adjective
Referring to a type of battery that uses solid electrodes and a solid electrolyte.
Charge/tʃɑːrdʒ/verb
To supply energy to a device.
Cycles/ˈsaɪkəlz/noun
A series of events that are repeated regularly in this context referring to the number of charge and discharge processes a battery can undergo.
Chemistry/ˈkɛmɪstri/noun
The branch of science that studies the composition structure properties and change of matter.
Energy/ˈɛnərdʒi/noun
The capacity to do work or produce change; in this context energy refers to the power stored in batteries.
Cooling/ˈkuːlɪŋ/noun
The process of reducing temperature especially to maintain optimal functioning in a device.
Vocabulary Learning

How much do you know?

What type of battery has Donut Lab announced?
Lithium-ion battery
Solid-state battery
Nickel-cadmium battery
Lead-acid battery
How long did it take for the battery to charge from 0% to 80% in one of the tests?
4.5 minutes
9.5 minutes
15 minutes
10 minutes
What is one advantage of solid-state batteries?
They are much heavier
They use liquid to move energy
They can hold more energy
They are less safe
What method did the VTT team use during testing?
Heating the battery
Keeping the battery cool
Using more liquid
Removing the cooling plate
How many charging cycles can Donut Lab's battery last?
1,500
3,000
100,000
10,000
What is the main drawback mentioned in the testing?
The battery is too light
The chemistry of the battery is uncertain
The battery charges too slowly
The battery is too expensive
Donut Lab's solid-state battery can charge faster than regular batteries.
Solid-state batteries use liquid to transfer energy.
The VTT Technical Research Centre is based in Sweden.
Most lithium-ion batteries last significantly fewer cycles than Donut Lab's battery.
The VTT team faced no problems while testing the battery.
The battery can charge to 80% in about 4.5 minutes.
The battery from Donut Lab is called a solid-state .
It took about minutes to charge from 0% to 80%.
Solid-state batteries do not use to move energy.
Donut Lab's battery can last charging cycles.
The VTT team adjusted the battery to improve contact with the plate.
The chemistry of the battery is still .
This question is required

Read More

ESL-NEWS: Enhance your English through tailored news, perfect for improving reading and listening skills. Dive into stories that match your level, making learning engaging and connected to the real world.

About

Trending

Categories