Discussion to kick off phase 2 work on defining uniform methods for assessing the risk of thermal propagation across the REESS.

The purpose of this document is to facilitate arrival at a common understanding among EVS informal group contracting parties on thermal runaway propagation risk assessment. Several contracting parties are embarking on a thermal runaway propagation experimental research campaigns for Phase 2 and a common understanding is important to help focus research efforts especially considering the complexity of cost-intensive thermal propagation tests. This approach is expected to further facilitate coordination of contracting parties’ research and to pave a path for effective round-robin testing. For this purpose, this document contains a non-exhaustive list of questions for discussion and agreement among experts.

Japan responses to the EVS informal group request for input concerning thermal propagation testing across electric vehicle battery cells. (EVS informal group action item 9 from the 14th session)

Summary table current research projects in Japan regarding electric vehicle REESS thermal propagation testing. (EVS informal group session 14 action item 11)

China responses to the EVS informal group request for input concerning thermal propagation testing across electric vehicle battery cells. (EVS informal group action item 9 from the 14th session)

Summary table current research projects in China regarding electric vehicle REESS thermal propagation testing. (EVS informal group session 14 action item 11)

Presentation of Japan research into thermal propagation. (Action item 1 from the 14th EVS informal group session)

Korea responses to the EVS informal group request for input concerning thermal propagation testing across electric vehicle battery cells. (EVS informal group action item 9 from the 14th session)

OICA comments and proposed changes to the “Single Cell Thermal Runaway Propagation” white paper intended to define a consensus on the testing for such risks.