Directory/alteva
alteva
Cologne, North Rhine-Westphalia, Germany

About

Alteva Technologies develops ultralight lithium-sulfur batteries with lithium-metal anodes for drones, aviation, robotics, satellites and other uses where weight matters.

Its cathode uses an engineered Carbon Cage carbon host to limit sulfur-related degradation, and it develops separators and electrolytes in-house and with partners. Its first-generation battery is available for testing. Alteva Technologies GmbH is based in Cologne, Germany, and draws on years of research supported by the German Aerospace Center, DLR. It sources materials only from friendly countries and plans a fully European supply chain.

From the Battery Report

Battery Report 2025 coverBattery Report 2025 · chapterCell Design and Materials: Lithium SulfurVolta Foundation's annual report on this part of the battery industry.

Battery Chemistries

Lithium Sulfur✓

Location Info

HQ
Cologne, North Rhine-Westphalia, Germany

Europe (1)

Office
Paris, France

Sources

  • Chemistry: Lithium Sulfur

    • Technology | Alteva · Company site · checked Oct 2026“Our lithium-sulfur batteries enable extreme energy density, long-lasting cycle life”

Quick Facts

Founded
2023
Team Size
1-10
Funding
Private
Last Updated
Oct 14, 2026