JOHNSTON (RI) — Lithium-ion batteries, so useful in smartphones, electric cars and energy storage systems, can catch fire and explode. The risk is magnified in warehouse settings where hundreds of thousands of batteries could be stored.
That’s why FM Global, one of the world’s largest commercial property insurers, has conducted new research to refine fire protection guidance for lithium-ion batteries stored in warehouses. The research included large-scale fire tests at the FM Global Research Campus in West Glocester, R.I., USA, home of the largest fire technology lab in the world (108,000 square feet [10,000 square meters], six stories high).
“When new property hazards emerge, businesses turn to us for answers,” said Louis A. Gritzo, Ph.D., vice president, manager of research at FM Global. “Executives, risk managers, fire protection organizations, municipalities and insurers all need definitive, empirically conclusive information on how to cost-effectively manage this increasingly prevalent storage risk. Now we have it.”
Among the key findings:
- Corrugated board cartons and plastic dividers tend to catch fire before significant involvement of the cartoned batteries.
- Large-format lithium-ion batteries, such as those used in electric cars, generally present a higher hazard than small-format batteries used in smartphones and laptops. Large-format batteries tend to ignite more quickly in a warehouse fire.
- Properly configured ceiling sprinklers can suppress the fire, whether ignited by an exploding battery or an external source.
The tests build on FM Global research reported in May 2013 which, like this latest phase, was conducted in partnership with the nonprofit Property Insurance Research Group (PIRG) and in collaboration with the National Fire Protection Association’s Fire Protection Research Foundation (FPRF).
A detailed report of the testing, data and fire protection recommendations is available for free online at www.fmglobal.com/researchreports, and a summary is available at www.nfpa.org/lithiumbatteryhazards. The findings will inform FM Global Property Loss Prevention Data Sheets, which provide engineering guidelines that risk managers, property owners and code authorities can use to protect their facilities. Videos of the lithium-ion battery testing are available on YouTube.
About FM Global
Established nearly 200 years ago, FM Global is a mutual insurance company whose capital, scientific research capability and engineering expertise are solely dedicated to property risk management and the resilience of its client-owners. These owners, who share the belief that the majority of property loss is preventable, represent many of the world’s largest organizations, including one of every three Fortune 1000 companies. They work with FM Global to better understand the hazards that can impact their business continuity in order to make cost-effective risk management decisions, combining property loss prevention with insurance protection.