The company is one of the most ambitious startups in the field of energy storage solutions in Europe.

Sodium-ion technology is ideal for all energy storage applications.  © Salt stream

Following its successful market entry with innovative energy storage solutions based on sodium-ion technology, Salzstrom is now entering the next phase: Research and development activities are being strategically consolidated in a new company (FlexCo) to further advance technological development. This groundbreaking technology represents a safe and sustainable alternative to conventional lithium-ion batteries – it also boasts a particularly long service life and high temperature resistance.

The cleantech startup Salzstrom raised a seven-figure pre-seed financing round, making it one of the largest of its kind in an early-stage investment. The company is one of the most ambitious startups in the energy storage solutions sector in Europe.

"We are convinced that the time is ripe for a safe, environmentally friendly, and fair alternative to lithium-ion batteries," says Stefan Nolte, CFO and co-founder of Salzstrom. "This financing is a very strong signal and a significant milestone on our journey. We thank all financing partners involved – especially Erste Bank – for their professional and dedicated support during this crucial phase of the company's development."

Salzstrom is led by an interdisciplinary founding team with decades of experience:

  • Peter Arnold, serial founder and visionary with 15+ years of experience in research and agile development in the field of batteries and energy management
  • Stefan Nolte , entrepreneur and executive with 15+ years of experience in company development, strategy and M&A
  • Jürgen Ellensohn, entrepreneur and C-level executive with 15+ years of experience in brand building and growth strategies with a strong international corporate background

The aim of SALZSTROM is to establish the storage technology of the future based on sodium (salt) in Europe – and thus to reduce dependence on critical raw materials (especially lithium, cobalt and nickel).

About Salzstrom

Salzstrom is a Vienna-based cleantech startup that develops and markets innovative energy storage solutions based on sodium-ion technology. They were the first company to launch a CE-certified battery module on the European market and are already successfully distributing salt batteries. The company pursues the vision of an energy future that is safe, sustainable, and fair for all. Salzstrom is managed by a multidisciplinary team with extensive expertise in technology, finance, marketing, and sales.