The Next Web writes that the team at LionVolt produces lithium-ion cells that don't contain the liquid lithium that is usually found in modern-day batteries. The company's cells are made with a thin film that contains billions of solid pillars, thus creating a patented 3D architecture.

The solid material allows for the battery to charge at faster speeds, while safety is improved as well, since not having a liquid means that fires or explosions are very unlikely.

According to LionVolt's CEO and co-founder Karl McGoldrick, the energy-density of those cells is also record-breaking, at 450 Wh/kg, compared to 244-296 Wh/kg that Tesla's 4680 lithium-ion cells have.

Furthermore, company engineers claim that the benefits of their solid-state cells don't end here, as they are 50% lighter and 200% better performing than the most advanced lithium-ion cells available on the market today.

LionVolt's batteries can currently be used in wearable devices, but the company plans to develop EV-grade batteries at its upcoming factory in Eindhoven. With the recent 15 million euros investment, LionVolt's total raised funding goes to 30 million euros.

The Dutch startup recently acquired bankrupt AMTE Power, which has a production and research facility in Thurso, Scotland. The site will be modernized to support the manufacturing of the new solid-state batteries.

Sandeep Unnikrishnan, CTO of LionVolt, said that this "helps us mature our innovative 3D battery technology quicker by leveraging the manufacturing expertise from the team in Scotland, thereby reducing time-to-market."