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.


/jrc/en/file/document/175030Initializing of thermal runaway for lithium-ion cells focusing on the effect of internal short circuit

/jrc/en/file/document/175029Factors influencing the thermal stability of li-ion batteries – from active materials to state-of-charge and degradation

/jrc/en/file/document/175028Design concepts and materials for thermal propagation prevention

/jrc/en/file/document/175027Introduction to battery thermal runaway testing methods, from single cells to packs

/jrc/en/file/document/175038Thermal propagation in lithium-ion batteries

/jrc/en/file/document/175037Thermal modelling of thermal runaway propagation in lithium-ion battery systems

/jrc/en/file/document/175036Quantitative safety characterization of li-ion cells

/jrc/en/file/document/175035Preventing thermal propagation – approaches & effort to implement them in a battery system

/jrc/en/file/document/175034Lessons learned for achieving passive thermal runaway (tr) propagation resistant (ppr) designs for spacecraft batteries

/jrc/en/file/document/175033The landscape of thermal runaway propagation testing

/jrc/en/file/document/175032Kit li-ion battery research – thermal propagation

/jrc/en/file/document/175031Initiation of thermal runaway with different heating devices


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.