Big Leap

Big Leap is set to introduce advanced Battery Management Systems that improve compatibility, connect 1st Life Batteries with 2nd Life Battery Energy Storage Systems, and make batteries more adaptable, strengthening their value chains.


  • Lead school School of Engineering and Computer Science
  • Institute Institute for Energy and Mobility Research IEM
  • Research unit IEM / Batteries and storage systems
  • Funding organisation Europäische Union
  • Duration (planned) 01.01.2024 - 01.07.2027
  • Project management Prof. Dr. Priscilla Caliandro
  • Head of project Prof. Dr. Priscilla Caliandro
  • Partner Brussels Research and Innovation Center for Green Technologies (Leading House)
    Fraunhofer-Gesellschaft zur Förderu
    Teknologian tutkimuskeskus VTT Oy
    Ikerlan S. Coop
    Electricité de France
    Eaton Elektrotechnika SRO
    Corvus Norway AS
    INEGI - Instituto de Ciencia e Inovacao em Engenharia Mecanica Engenharia Industrial
    Asociacion Espanola de la Innovacion en el Marketing y la Inversion Sostenible
    Renewable Energy Solutions for Africa and Mediterranean
    UAB Soli Tek R&D
    Moroccan Agency for Sustainable Energy SA
    Tata Power Company Limited


Batteries are identified as a key technology in guiding the clean-energy transition, especially in automotive and energy storage. This project aims to achieve the next generation of Battery Management Systems (BMS) to improve the interoperability between battery chemistries and architectures and enhance the operation reliability of second life batteries, thus extending adaptability and empowering battery value chains.

Course of action

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 standardized. 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, emphasizing sustainable benefits.

This project contributes to the following SDGs

  • 7: Affordable and clean energy
  • 9: Industry, innovation and infrastructure
  • 13: Climate action