公开(公告)号：WO2016071801A1

公开(公告)日：2016-05-12

申请号：PCT/IB2015/058258

申请日：2015-10-27

申请人： UNIVERSITA' DEGLI STUDI DI SALERNO

发明人： PETRONE, Raffaele ,  POLVERINO, Pierpaolo ,  PIANESE, Cesare ,  SORRENTINO, Marco

IPC分类号： G01N27/02 ,  G01R31/36 ,  H01M8/04

CPC分类号： G01N27/026 ,  G01R31/3651 ,  G01R31/3662 ,  H01M8/04313 ,  H01M8/04664 ,  H01M10/42 ,  H01M2010/4271

摘要： Method for determining the state of an electrochemical device by means of electrochemical impedance spectroscopy (EIS) and equivalent circuit model (ECM) comprising the steps of measuring the system impedance by any EIS device, modelling the measured impedance by an ECM, identifying the ECM parameters through an automatic minimization algorithm, and processing the ECM parameters values to simulate the electrochemical impedance of the device. In particular, the identifications of the number of parameters (i.e. the ECM model components) and of suitable starting values of these parameters are automatically detected through a geometrical pre-analysis of the shape of the measured impedance spectrum Z', which geometrical pre-analysis will be also called in the following as Geometrical First Guess (GFG) algorithm.

摘要翻译： 用于通过电化学阻抗谱（EIS）和等效电路模型（ECM）确定电化学装置的状态的方法，包括以下步骤：通过任何EIS装置测量系统阻抗，通过ECM建模所测量的阻抗，识别ECM参数 通过自动最小化算法，并处理ECM参数值以模拟器件的电化学阻抗。 特别地，通过对测量的阻抗谱Z'的形状的几何预分析，自动检测参数数量（即ECM模型分量）以及这些参数的合适起始值的识别，该几何预分析 也将以下称为几何第一猜测（GFG）算法。