Jay
Need to dive more!
source and more detail: Safety Concerns with Li-ion Batteries – Battery University
which also says " Water-based products are most readily available and are appropriate since Li-ion contains very little lithium metal that reacts with water."
and slightly contradicts (re lithium quantity):
and ... "Despite their name, lithium-ion batteries used in consumer products do not contain any actual lithium metal." source: How Do You Put Out a Lithium-Ion Battery Fire?