Thermography evaluation device for electrochemical cell array of rechargeable battery in thermography system, has control unit controlling load unit, and cell array evaluated based on load sequence and change of temperature distribution

摘要

The device (10) has a measurement data interface (12) for receiving measurement data (20). A control unit (14) controls a load unit (16) such that a current flow (17) via an electrochemical cell array (11) is performed according to a sudden load sequence (22) to cause a change in temperature in the electrochemical cell array and change of surface temperature distribution. The electrochemical cell array is evaluated based on the load sequence and a resulting change of the surface temperature distribution over time duration. Independent claims are also included for the following: (1) a thermography system (2) a method for checking an electrochemical cell array by thermography (3) a computer program comprising a program code with instructions to execute a method for checking an electrochemical cell array.