NETL Electrical Conductivity Relaxation(ECR) Analysis Tool

This application was developed within the solid oxide fuel cell (SOFC) work plan. It calculates the oxygen surface exchange coefficient (k) and oxygen diffusion coefficient (D) for an oxide sample using electrical conductivity relaxation (ECR) data. The tool also produces a heat map showing the associated uncertainty in fitting the ECR data for given pairs of k and D values, so the user can determine the most likely range of k and D values for the tested values. Multiple datasets for the same material can be plotted to decrease uncertainty. The tool can also simulate ECR curves for inputted k and D values and overlay the simulated curves with experimental data for comparison.

本应用程序基于固体氧化物燃料电池（SOFC）工作规划开发而成。它可利用电导率弛豫（ECR）实验数据，计算氧化物样品的氧表面交换系数（k）与氧扩散系数（D）。该工具还可生成热图，展示给定k与D值组合下ECR数据拟合过程的相关不确定性，帮助用户确定待测样品k与D值的最可能取值区间。针对同一材料的多组数据集可进行联合绘图，以降低不确定性。此外，该工具支持基于输入的k与D值模拟ECR曲线，并可将模拟曲线与实验数据叠加以开展对比分析。