To limit the rise in temperature, the automobile industry must reduce its greenhouse gas emissions. How can this be done? By encouraging the switch to electric vehicles while optimising and extending the life of batteries. With MOBILIZE, the objective is to create sustainable ecosystems that combine electric mobility, intelligent recharging and the reuse of batteries to store renewable energy. To achieve this, MOBILIZE is combining its expertise with that of other players such as the start-up Green-Vision, based in Etampes, near Paris, which specialises in the integration of second-life batteries into other vehicles. Yann Lelong, its founder, explains how this partnership works and what it brings to life with the ex-batteries of Renault vehicles.