A November 2017 fire at Belgium’s first grid-connected lithium ion battery energy storage park raises important questions about the safety and costs of Li-Ion systems for high voltage grid ancillary systems.
Stability and thermal runaway remain a concern for Li-Ion batteries, currently in mass production for many applications ranging from energy storage, to mobility and consumer electronics.
Li-Ion batteries require complex thermal management and safety systems. In Brazil, this is even a greater concern as most of the potential energy storage system (ESS) sites are remote and subject to high ambient temperatures.
Besides the well-documented examples of fires caused by poorly managed Li-Ion batteries in consumer electronics, chemical fires like the one in Belgium have shown that Li-Ion batteries used in high voltage grid ancillary systems can be dangerous and costly.