Exclusive: Holyvolt raises at €182m valuation for batteries that can be printed on almost anything
5 Feb 2026
12:48
Secretive Swedish startup Holyvolt, which Impact Loop first uncovered in late-2024, has raised more funding at a substantial valuation.
A recent patent filing we've examined also publicly reveals the company's technology in detail for the first time.
Yet, much of the mystery around Holyvolt prevails. Rumours are circling that the company has links to Donut Labs, the much-hyped Finnish startup that claims to have invented the world's first production-ready solid state battery.
A recent patent filing we've examined also publicly reveals the company's technology in detail for the first time.
Yet, much of the mystery around Holyvolt prevails. Rumours are circling that the company has links to Donut Labs, the much-hyped Finnish startup that claims to have invented the world's first production-ready solid state battery.