Advancing battery management systems and second-life battery integration

The BIG LEAP project just started its 42-month journey. This project aims to achieve the next generation of Battery Management Systems (BMS) to improve the interoperability between battery chemistries and architectures and enhances the operation reliability of second life batteries, thus extending adaptability and empowering battery value chains.

Batteries are identified as a key technology in guiding the clean-energy transition, especially in automotive and energy storage. The BIG LEAP project addresses challenges such as the lack of interoperability or the non-standardized processes, by developing solutions for Second-Life Battery Energy Storage Systems. The technological breakthroughs planned for the Battery Management Systems include a three-layer architecture to ensure interoperability, safety, and reliability.

This will be complemented by an adaptable Energy Storage System design, facilitating BMS integration and expanding SLB’s potential applications. Moreover, the project aims to optimize the battery refurbishment process by making it cost-effective, faster and standardised.

The development methodology involves collecting data from Electric Vehicles (EV), maritime E-Vessels and Energy Storage System batteries. The testing will take place at three demonstration locations. The aim is to validate the effectiveness and compatibility of the innovative BMS and ESS, facilitating their upscale in the market. This solution is expected to have a positive impact on the European economy throughout the battery value chain, emphasising sustainable benefits.

Under the leadership of Brussels Research and Innovation Centre for Green Technologies (BRING), BIG LEAP brings together a consortium of 16 partners from 10 EU Member States (Belgium, Czech Republic, Finland, France, Germany, Italy, Lithuania, Spain, Portugal, and Norway) with 2 third countries associated with Horizon Europe (Turkey and Switzerland) and two international partners (India and Morocco).

The BIG LEAP project aims to boost EU technological competitiveness by enhancing Battery Management System (BMS) interoperability and improving the reliability of Second-Life Battery Energy Storage Systems (SL-BESS).

The project involves upgrading BMS architecture with three layers —Hardware, Low-Level Software, and cloud-based Software. Innovative strategies, such as Probabilistic Data Association methodology, cloud-based battery models, and advanced Machine/Deep Learning algorithms, will be implemented for optimal SL-BESS operation and safety.

The BMS and SL-BESS will exhibit adaptability, updatability, and interoperability within an open-source framework, accompanied by enhanced cloud-based systems for remote maintenance, big data archives, and IoT cybersecurity. The project also addresses in-site diagnosis, module-level dismantling, and flexible-to-reintegration ESS manufacture.