First and second degassing of automotive Lithium-Ion batteries at overtemperature experiments

In normal usage operation, lithium-ion batteries (LIB) do not exchange hazardous gases with the environment. But, if there is a defect within the cell, leakage of the LIB with vaporizing electrolyte and serious potential risks1,2,3 are possible. During internal or external battery failures, the pressure inside the battery cell increases due to gas generation until […]

Fast-charging in practice – a way to get it done!

The ability to fast-charge Lithium-Ion batteries is a key requirement for the success of electric vehicles. One main problem when fast-charging Lithium-Ion batteries is Lithium-plating. There, the Lithium-Ions are not intercalated into the anode but are deposited on its surface. This leads not only to safety issues, but also reduces the capacity of the battery […]

Novel barriers for preventing thermal propagation – From research to market

The overall increasing application of lithium-ion batteries, driven by the field of electric vehicles and stationary storage systems forcing a permanently increase of energy and power density. Hence, new cell chemistries with thermally sensitive materials are developed by battery industry to meet the customers’ requirements in driving range. Therefore, thermal safety aspects on lithium-ion batteries […]