Doyam

Braunschweig, Lower Saxony, Germany

About

Doyam provides hardware and software for battery diagnostics and monitoring, built around online electrochemical impedance spectroscopy (EIS).

Its platform monitors battery health in real time to improve state-of-charge accuracy, manage depth of discharge to slow degradation, and support predictive maintenance with machine learning models. It targets battery energy storage systems, electric vehicles and second-life batteries. Doyam is based at the Institute of Electrical Machines, Traction and Drives of TU Braunschweig.

The 2025 Battery Report lists Doyam under battery intelligence and field analytics.