Method and system for predicting behavior of secondary battery on basis of parameter measurement

A secondary battery behavior simulation system comprising:

• a jig comprising a heating/cooling unit controlled by a control device according to a temperature setup, and a temperature measuring unit configured to transmit a measurement signal regarding a temperature of a secondary battery cell to the control device for temperature monitoring, wherein the secondary battery cell is disposed between the heating/cooling unit and the temperature measuring unit;
• a parameter tester connected to the secondary battery cell and configured to obtain parameter information of the secondary battery cell based on data measured while controlling operations of the secondary battery cell, wherein when the temperature of the secondary battery cell reaches a setup temperature, the parameter tester controls the operations of the secondary battery cell using a unit for electrochemical characteristic evaluation;
• a basic parameter database configured to store basic parameter information including structural and material properties of the secondary battery cell which is derived from a geometric structure and constituent materials of the secondary battery cell;
• and
• a data processing device configured to:
• receive the parameter information and the basic parameter information,
• simulate electrochemical and thermal behavior of the secondary battery cell by applying the parameter information and the basic parameter information to a semi-empirical electrochemical-thermal model, and
• generate behavior information of the secondary battery cell, the behavior information comprising:
• at least one of an open circuit voltage (OCV)-capacity curve according to environment temperature, a closed circuit voltage (CCV)-capacity curve, a remaining useful life (RUL), and a two-dimensional or three-dimensional temperature distribution of the secondary battery cell.