Renault Group shares EV battery fire prevention system

Renault Group is giving all car makers permission to use its Fireman Access system, which helps prevent electric vehicle (EV) battery fires.

The innovation allows the emergency services to rapidly flood a damaged EV battery with water, preventing the risk of thermal runaway.

From a technical standpoint, an adhesive disc is placed over an opening in the casing of the vehicle's traction battery, effectively sealing it for normal use. If the vehicle catches fire and the flames spread to the battery, the powerful jet from the fire hose dislodges the disc and drenches the cells in water.

Luca de Meo, CEO Renault Group, said: “Innovating to improve road safety is part of who we are at Renault. We're particularly proud of the partnership developed with the fire services in recent years.

"Fireman Access is a practical demonstration of what can be achieved by combining our expertise as a manufacturer with the skills of the men and women who keep us safe every day.

"Today, I'm delighted to be making this innovation freely available, because when it comes to a subject like safety, we need to break down all the barriers. This move is also in keeping with the commitment made alongside the United Nations, to make mobility safer, all over the world."

Renault Group has made the Fireman Access patents freely available to the entire automotive industry. Car manufacturers and parts suppliers can obtain a licence under the agreement that any upgrades will be made available to other members of the community.