Dukosi has announced the availability of a new evaluation kit (EVK) designed to help battery developers integrate high-accuracy, cell-level DC Internal Resistance (DCIR) and Electrochemical Impedance Spectroscopy (EIS) measurements into lithium-ion battery packs.
The DCIR and EIS EVK uses Dukosi’s chip-on-cell Smart Cell technology to provide measurements with lab-grade accuracy without requiring additional software or calibration. The company says its DCIR testing is considerably faster than competing systems, giving battery management systems (BMS) near-real-time insight into individual cell conditions.
“Our smart cell monitoring solutions and proprietary C-SynQ communication protocol have gained significant market adoption. We’re building on that foundation with industry-leading, cell-level DCIR and EIS measurements that bring insights previously available only from high-end lab equipment directly into production-spec batteries,” said Joseph Notaro, president at Dukosi.
Combined with per-cell voltage and surface temperature readings from the Cell Monitor’s integrated temperature sensor, this data can improve State of Available Power estimates, thermal modelling and battery safety.
EIS measurements provide further insight into electrochemical changes within individual cells, supporting more accurate State of Health (SoH) estimation. Developers can conduct frequency sweeps from 0.1Hz to 3.5kHz or select specific frequencies to reduce test times. Dukosi reports that customer benchmarking against competing solutions has demonstrated measurement speeds 15 to 20 times faster, alongside higher accuracy.
Cell-level SoH information can support predictive maintenance, outlier detection and supply-chain tracking, while helping assess residual cell value for second-life applications.
“More accurate, consistent, and detailed cell data helps developers design safer, more reliable systems with longer operating lives,” Notaro added. “Our DCIR and EIS Evaluation Kit gives customers a proven platform for technology evaluation and proof-of-concept development, backed by comprehensive support to help bring next-generation battery solutions to market.”
The EVK comprises a Cell Monitor board for each cell, a System Hub supporting up to 216 boards, and a graphical user interface (GUI) with digital-twin visualisation. Developers can switch between DCIR and EIS testing without changing the physical configuration.
Dukosi will demonstrate the kit at electronica 2026, Hall B4, Booth B4.421, from 10 to 13 November.
Dukosi recently announced the availability of DK-NFLNK, its new contactless communication solution for the development of safer, more reliable battery systems based on traditional multi-channel analogue front end (AFE) designs.
