Failure Consequence Analysis of E-Vehicle Batteries

The process of developing more effective, safer and environmentally friendly E-Vehicles, as well as well functioning systems for battery reuse and recycling, demands for comprehensive understanding of potential consequences of a critical battery failure. Although being very rare, a critical battery failure occurring in an E-Vehicle using Li-ion technology, can result in a rapid temperature increase inside the battery. As a consequence, it will ventilate its interior gases, and at worst, fire and/or explosion may occur. This project will investigate the relationship between the pre-failure conditions of a commercial vehicle battery, and the post-failure consequences of such an event. A test matrix of batteries with different SOC will be exposed to a range of temperature increase rates as well as inert and air containing atmosphere. After such abuse tests, a post mortem study will be conducted on a selection of cells. The results will contribute to a safer post crash and failure handling.

Participants

Patrik Johansson (contact)

Professor vid Chalmers, Physics, Condensed Matter Physics

Collaborations

Autoliv Development

Vårgårda, Sweden

Uppsala University

Uppsala, Sweden

Volvo Car Corporation

Gothenburg, Sweden

Funding

Swedish Energy Agency

Funding Chalmers participation during 2013–2014

More information

Created

2015-02-27