NXP Semiconductors N.V. has launched the industry’s first wireless Battery Management System (BMS) solution with the industry’s broadest Ultra-Wideband (UWB) capabilities, helping to streamline electric vehicle assembly, increase battery energy density, and accelerate time to market.

NXP announced on the 14th that it has launched a UWB wireless BMS solution.

The new solution overcomes development challenges such as costly and complex manufacturing processes, accelerating the adoption of electric vehicles.

Wireless communication within the battery pack allows for robust and reliable transmission of battery cell information (voltage, temperature measurements, etc.) from a single module to the battery management unit without the need for wiring. This ensures optimal performance and prevents premature failures or safety hazards.

NXP’s UWB wireless BMS technology separates mechanical and electrical development, providing EV manufacturers with increased flexibility, faster time to market, and lower development costs, all while maintaining full system scalability across multiple platforms.

Utilizing a wireless solution minimizes the use of complex wiring harnesses for battery packs and reduces the need for error-prone manual work during production. This will increase the efficiency of electric vehicle assembly and reduce overall life cycle costs. Eliminating connectors and wiring between battery cells will increase energy density, a key parameter in electric vehicle design and performance for longer driving ranges.

“NXP’s wireless BMS solution is the first to introduce UWB technology, providing electric vehicle manufacturers with cutting-edge technology to enable the electric vehicle of the future,” said Naomi Smit, vice president and general manager of Battery Management Systems at NXP. “Trimention UWB provides simple, secure and robust wireless communication within the BMS, outperforming existing narrowband-based solutions, and we are proud to work with our customers to make their wireless vision a reality.”

Implementing wireless technology within a battery pack reflective enclosure is difficult. UWB uses high-bandwidth pulses instead of modulated carrier frequencies (sine-wave signals) used in the 2.4 GHz narrowband, such as Bluetooth® Low Energy (BLE)-based technologies. This allows for more robust and reliable data transmission by increasing resistance to reflections and frequency-selective fading.

NXP’s UWB wireless BMS solution is expected to be available for OEM evaluation and development in Q2 2025.

The solution is part of NXP’s FlexCom chipset that supports wired and wireless technologies. It provides OEMs and Tier 1 suppliers with flexibility in vehicle architecture and technology choice. A common software architecture and safety libraries for both BMS configurations allow software reuse across multiple platforms, reducing development efforts.

The NXP Flexcom BMS chipset also includes NXP’s recently announced MC33777 Battery Junction Box IC. This supports high-voltage systems with accurate voltage, chassis isolation, and current measurement. The battery junction box is part of NXP’s comprehensive turnkey battery management system offering. It enables manufacturers to use wired and wireless battery management solutions with NXP’s software and applications without the need for additional partners.

NXP's electrification solutions manage energy flows across the electrification ecosystem, including electric vehicles, homes and buildings, and smart grids. In electric vehicles, they help extend driving range and keep vehicles on the road longer with flexibility and precision. NXP's comprehensive system solutions for electric vehicles include battery cell controllers, battery junction boxes, communication gateways, and microcontrollers. They provide OEMs with the optimized performance and integrated safety they need.