EU Science Hub

Workshop: Safer Li-Ion Batteries by Preventing Thermal Propagation?

Mar 08 2018
Mar 09 2018

This 2 day workshop discusses the current state-of-the-art of thermal propagation testing.

Leading experts will also brain-storm on the potential impact of preventing thermal propagation on the safety testing landscape.

Workshop topics

  • Thermal runaway: mechanisms and influencing factors
  • Thermal propagation
  • Thermal runaway initiation methods, fit-for-purpose testing related to external and internal abuse triggers
  • Safety strategies; methods for detecting, mitigating and preventing thermal propagation; anti-cascading strategies
  • Cost and performance penalty of mitigating thermal propagation
  • Impact of avoiding thermal runaway propagation on the current safety testing landscape

At the end of the workshop rapporteurs present a summary of each session. Key messages and conclusions will be collected and published in a final report.


The European Comission communication "Accelerating Clean Energy Innovation" identified safer and higher-performing batteries as crucial to ensure electro-mobility and reliable energy supply.

Lithium-ion technology can be a solutions for electric transportation and smart grids as well as portable devices.

But the use of lithium-ion batteries can also be dangerous if they are operated outside their contort zone.Exceeding a certain onset temperature, an rapid increase in temperature is called a 'thermal runaway'.

Thermal runaway leads to pressure increase, gas and particulate emission, fire or even explosion. Thermal propagation is a cascade of thermal runaway through an entire battery pack. It can have severe consequences.

The  case of a spontaneous single cell otherwise normal operating conditions  can be more hazardous as it might happen without warning, without an  obvious cause and after a considerable service time (i.e. field  failures).

/jrc/en/file/document/174483Stage setting, scope of the workshop, references

This exploratory research workshop is organised within the Joint Research Centre Exploratory Research Activities.