The solution allows for direct current internal resistance (DCIR) measurements and electrochemical impedance spectroscopy (EIS) directly in each cell, with accuracy comparable to that of laboratory equipment and without the need for calibrations or additional software to perform the measurements.
The kit is aimed at manufacturers and developers of batteries for electric vehicles, industrial and marine systems, robotics, infrastructure, large-scale energy storage, and artificial intelligence data centers.
DCIR measurements to improve power management
Dukosi's technology enables DCIR internal resistance testing to be completed in significantly less time than other systems, providing the battery management system (BMS) with near real-time information on the internal conditions of each cell. This data is complemented by individual surface voltage and temperature measurements taken using the sensor integrated into the Dukosi Cell Monitor chip.
The combination of parameters facilitates a more accurate estimate of the State of Available Power and contributes to improved safety through more detailed thermal models.
The kit incorporates electrochemical impedance spectroscopy (EIS) capabilities to analyze the electrochemical changes that occur in the cells during operation and aging. This information allows for improved individual estimation of the State of Health (SoH) of the batteries.
Developers can perform a full frequency sweep between 0.1 Hz and 3.5 kHz or select specific frequencies to obtain certain parameters and reduce testing times.
Individual cell monitoring facilitates applications such as predictive maintenance, detection of cells exhibiting anomalous behavior, and traceability throughout the supply chain. It can also help assess the residual value of cells for second-life applications and promote their reuse within circular economy models.
Components of the Dukosi DCIR and EIS assessment kit
The kit includes the necessary components for evaluating the technology and developing proof-of-concept tests:
Dukosi Cell Monitor (DK_DCIR_EIS_CM): individual monitoring board, one unit per cell.
Dukosi System Hub (DK_DCIR_EIS_SH): hub capable of connecting up to 216 Cell Monitor boards.
Cables and accessories: for conducting tests using a power supply or with actual cells.
Graphical user interface (GUI): incorporates a digital twin visualization of the battery configuration and allows switching between DCIR and EIS tests without modifying the physical connections.
Documentation and technical support: resources for evaluating and optimizing designs.
By connecting multiple Cell Monitor boards, developers can create multi-cell networks that replicate the configuration of a complete battery pack.
