SigmaSense has announced the release of its onboard Electrochemical Impedance Spectroscopy (EIS) semiconductor and software solution, designed to transform battery system management for AI data centres and utility-scale energy storage.
The new onboard EIS system and SigmaEIS Development Kit provide real-time insights into battery performance that were once restricted to bulky, costly laboratory equipment.
“SigmaSense is bringing lab-grade battery intelligence into the real world,” said CEO Peter Vancorenland. “Batteries produce enormous amounts of information that can dramatically improve their performance, safety and longevity. But you can’t act on data you don’t capture in the field. Our onboard EIS system gives engineers real-time access to the complex data that historically required a lab.”
Electrochemical Impedance Spectroscopy works by sending small AC signals into a cell and measuring its multi-frequency response. This reveals internal resistance, charge-transfer behaviour, diffusion processes, and early signs of degradation. Such data enables predictive maintenance, improved state-of-health estimates, and safer operation, while helping prevent failures such as thermal runaway.
Unlike traditional onboard systems that monitor only voltage, charge and temperature, SigmaSense’s platform measures the full impedance signature, including frequency response, current, diagnostics and safety metrics. Its ‘direct-to-digital’ sensing architecture places high-resolution EIS directly onto a semiconductor chip, and is said to deliver miniaturised, field-ready monitoring with lower power use, faster throughput, and superior noise rejection.
The SigmaEIS Development Kit combines a custom semiconductor with configurable software, supporting multiple battery formats and chemistries.
“Our development kit is giving teams lab-quality data in less than 30 minutes,” added SVP Kevin Reinis.
Beta users are already reporting reliable results across diverse applications.
