Destructive Testing of Lithium Ion Cells

摘要

Gas temperatures can reach almost 1000°C Cells casings don't always fail at vent Failure can propagate to another cell at least 32 mm away in somewhat open environment More gas is released for NCR18650B than cells tested in published literature Ejecta from cell can include not just ash, but large pieces of metal electrodes PTC fuses may fail as cell temperature is increased.