#Japan #Kyoto #battery management #Nuvoton #KA85010UA

Nuvoton Technology Corporation Japan Introduces the KA85010UA

On September 29, 2026, Nuvoton Technology Corporation Japan (NTCJ) revealed plans to launch the KA85010UA, an advanced battery management integrated circuit (IC) designed to handle up to 26 cells, integrating electrochemical impedance spectroscopy (EIS) capabilities. Samples of this innovative product will be available starting January 2027.

The KA85010UA employs a unique inductor-based method that significantly reduces the temperature rise on printed circuit boards (PCBs) during EIS measurements. NTCJ claims that this approach minimizes temperature elevation by approximately 93% compared to traditional resistance methods. This technological advancement allows for effective battery degradation diagnostics, lifespan predictions, and early anomaly detection in cells.

Enhanced Battery Monitoring Capabilities

This IC provides comprehensive battery monitoring functions while simplifying EIS measurement by consolidating it into a single chip. EIS is essential for assessing battery health, estimating internal temperatures, and detecting potential issues early. It operates by superimposing alternating current on a battery and measuring the impedance based on the generated voltage and current responses, which enables ongoing internal state analysis without the need for specialized measurement equipment previously deemed necessary.

By quantitatively evaluating the internal state of a battery—a challenging task with standard voltage, current, and temperature measurements—EIS can enhance battery safety in electric vehicles and energy storage systems. This advanced technique not only improves monitoring efficiency but also streamlines data acquisition during operation, charging, and resting phases.

Unique Advantages

Utilizing NTCJ's proprietary inductor-based approach instead of conventional resistance techniques results in remarkable energy loss reduction. The company’s evaluations have validated that power loss and temperature increase can drop by around 93% in comparison to traditional methods, which is a significant leap forward for battery technology.

The low-power consumption and reduced heat emission characteristics of the KA85010UA make it especially suitable for automotive batteries and energy storage systems, enhancing performance stability and data acquisition accuracy under various operational conditions.

Comprehensive Support and Integration

NTCJ offers extensive support for the integration of EIS capabilities into client applications. This includes assistance in setting up the measuring environment and the implementation of estimation and anomaly detection functions. The collaboration with automotive manufacturers and research institutions has strengthened NTCJ's capabilities in data analysis, allowing for smoother development cycles for clients new to EIS functionalities.

With this dedicated support system, even clients venturing into EIS can develop battery diagnostic systems more efficiently, thus accelerating their development cycles and improving product timelines.

Conclusion

The introduction of the KA85010UA represents a significant advancement in battery management technology, promising enhanced reliability and performance. For more information, please visit Nuvoton's official site.

For detailed product specifications and to learn about how the KA85010UA can benefit your applications, check out this link.