With the increasing role of lithium-ion batteries, this presentation will discuss the uses of lithium batteries including battery energy storage, micromobility, and datacenters. We will then discuss the fire protection challenges presented by this battery technology, fire protection strategies and associated codes available that are trying to address these lithium battery fire protection challenges. We will look at case studies and examples of successful and failed protection strategies. This presentation also does a deep dive into the chemistry of lithium-ion batteries.