Presentation on Japanese research into thermal propagation and fire risks of vehicle battery systems.

Excerpt from the DRAFT Test Procedures developed by NHTSA and provided as a contribution to the work on electric vehicle safety GTR provisions.

Joint proposal supported by Canada, the EU, OICA, and the USA.

Revised version of document EVS-13-07-501.

Draft text pursuant to discussions of EVS-13-16-502. This text remains be cleaned up.

OICA comments on the status of the discussions and proposed test procedure as of 13 June 2016.

OICA presentation on the proposed thermal propagation initiation methods (nail, heat, and overcharge) and concerns over the objectivity of the testing in terms of producing quantitative, comparable outcomes. OICA argues that the three proposed initiation methods are not equivalent and that overcharge should be removed. In addition, OICA could like to see a thermal runaway definition applicable to cathode or anode configurations and proposes changing the definition (detection criteria) of thermal runaway to temperature-increase rates of greater than 1.25°C/sec (75°C/min) or lower.

Presentation of research on various REESS configurations and proposal for test and performance criteria. Korea proposes configurations for the heat, penetration (nail), and overcharge initiation methods. In addition, Korea proposes a thermal runaway definition as the condition where the cell temperature rise rate ≥ 20°C/min and would limit the maximum cell temperature to ≥ 200°C Initiation method.

Marked up version of document EVSTF-08-40 showing JRC comments and questions on the draft text.