New Semiconductor and Software Solution Extends Battery Life, Improves Safety and Performance, and Reduces Lifecycle Costs
AUSTIN, Texas — December 16, 2025 — SigmaSense, a pioneer of breakthrough sensing semiconductors, today announced the general availability of its Electrochemical Impedance Spectroscopy (EIS) semiconductor and software solution for battery system management. SigmaSense’s new onboard EIS system and EIS Development Kit enable large battery system users, such as AI data centers and utility-scale energy storage companies, to access real-time insights from deployed battery systems that were previously only possible with bulky, expensive laboratory equipment.
“SigmaSense is bringing lab-grade battery intelligence into the real world,” said SigmaSense 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.”
As utilities and power-intensive industries like data centers install more high-capacity battery storage, onboard, real-time battery system management will be a key driver of cost, performance, safety, and system longevity.
EIS characterizes the internal dynamics of battery chemistries by sending small AC signals into a cell and measuring its multi-frequency response. These measurements reveal internal resistance, charge-transfer behavior, diffusion processes, and early signs of degradation that can produce better state-of-health estimates, predictive maintenance, and safer, more efficient operation. EIS can also help predict and prevent significant performance and safety failures, such as thermal runaway, before they occur.
Traditional onboard management systems can monitor limited variables, such as voltage, state of charge and temperature. SigmaSense’s onboard EIS system measures the full complex impedance signature of a battery, including impedance, frequency response, voltage, current, temperature, state of charge, and derived health, safety and diagnostics metrics.
SigmaSense’s Onboard EIS System
SigmaSense has pioneered a “direct-to-digital” complex-impedance sensing architecture that places high-resolution EIS measurements directly onto a semiconductor chip. Unlike traditional potentiostats, which are bulky, costly, and confined to controlled lab environments, SigmaSense’s semiconductor and software platform delivers:
- Miniaturized, field-ready EIS for real-time, onboard monitoring
- Faster measurements optimized for continuous, high-throughput data collection
- Lower power consumption, enabling operation even inside battery-powered systems
- Higher sensitivity and signal-to-noise ratio, allowing EIS at lower excitation currents
- Superior noise rejection for harsh industrial and electrical environments
- Scalable, affordable silicon, enabling deployment across entire systems
SigmaEIS Development Kit
The SigmaEIS development kit includes a custom semiconductor unit paired with fully configurable, upgradeable software. The kit allows engineers and scientists to rapidly evaluate the company’s sensing capabilities across a wide range of formats, from cylindrical cells to prismatic and bar batteries. The system is chemistry-agnostic and can analyze virtually any battery type.
“Our development kit is giving teams lab-quality data in less than 30 minutes,” said SigmaSense SVP Global Sales and Business Development Kevin Reinis. “It’s smaller, more affordable, easier to scale, and far more practical than traditional EIS setups. It really is like having a lab inside every battery system.”
Beta users are currently testing the system in diverse battery systems across a range of applications and producing highly reliable measurements.
Visit our EIS blog for more technical details, or contact Kevin Reinis.
About SigmaSense (www.sigmasense.com)
SigmaSense’s breakthrough semiconductor and software solutions capture high-resolution, high-accuracy data and adapt to real-time information to improve AI decision-making, achieving new benchmarks in speed, accuracy, efficiency, and noise immunity. Backed by more than 400 patents, SigmaSense technology is used across batteries, power systems, automotive, and advanced industrial applications. Key partners and investors include NXP, Foxconn, LG-MRI, E Ink, Corning, and GIS. SigmaSense is headquartered in Austin, Texas, with additional offices in Boise, Idaho, and Taipei, Taiwan.
