Higher energy and higher use lead to higher risk. While research continues to boost the energy storage capability of lithium-ion batteries (LIBs) and leads to expanding applications and consumer use, the task of implementing effective safety strategies falls on regulatory authorities, cell manufacturers, R&D engineers and forensic scientists. Accurate tests and models are critical for predicting and controlling the complex electrochemical, thermal and mechanical behavior of LIBs while forensic investigations and regulations are required for safe transport. The Battery Safety 2017 conference continues this vital dialogue to integrate and implement LIB safety to meet ever-increasing energy demands.