The frontiers of science are being pushed to its limits to develop new and better batteries that can last longer, operate better and endure harsher environmental conditions. In order to achieve this, new chemicals and formulations need to be developed and studied.
Lithium-based batteries are one of the most popular types of rechargeable batteries for portable electronics, electric vehicles, military, and aerospace applications. Some of the new compositions developed, in combination with metals like Lithium (highly reactive and flammable) in batteries, may accelerate the likelihood of undergoing a hazardous thermal runaway reaction during usage. If the thermal runaway is accompanied by gas generation, it can result in over-pressurization/explosion of the batteries and/or the device housing the batteries.
To address the hazards associated with thermal runaways, it is very important to understand the thermal behavior of new chemical formulations in the research and development phase. Small scale calorimetry testing techniques can be used to study the thermal behavior.
Chilworth possess a wide variety of calorimetry techniques to study the thermal behavior of your new chemical formulations, including Differential Scanning Calorimetry (DSC), Carries Tube (CT) and Accelerating Rate Calorimetry (ARC). The calorimetry technique can be used to address the thermal hazard evaluation of new chemical formulations to include:
|Onset decomposition temperature of product||Adiabatic temperature rise|
|Heat and pressure generation rates||Time to maximum rate, temperature and pressure|
|Decomposition energy||Maximum reaction temperature and pressure developed|