No, not ion. Lithium *metal* batteries can catch fire when submerged in water. Lithium ion batteries have very little lithium and lots of water is usually the b

No, not ion. Lithium *metal* batteries can catch fire when submerged in water. Lithium ion batteries have very little lithium and lots of water is usually the best method to extinguish larger fires. More on safety including information on aircraft fire suppression systems on the more common lithium ion cells: https://batteryuniversity.com/article/bu-304a-safety-concerns-with-li-ion https://batteryuniversity.com/article/bu-304a-safety-concern...