cell model

Why Electrode Microstructure Architecture Determines Cell Performance

AION Engineering INC In lithium-ion batteries, electrode performance is governed not only by material chemistry but by the three-dimensional microstructure formed by particles, pores, binder, and conductive additives. Before production begins, this microstructure already defines how ions and electrons will move through the electrode. Once manufacturing starts, many of these structural characteristics can no longer … Read more

Particle Swarm Optimization Based Battery Parameter Identification

Flow chart and ECM model

Parameter identification of a battery Equivalent Circuit Model (ECM) using Particle Swarm Optimization (PSO). The ECM includes a series resistance R0​, an RC branch with R1 and C1, and a polynomial OCV-SOC relationship. The equations that describe the Equivalent Circuit Model (ECM) are given: The flow diagram takes you through the parameter optimization process. The … Read more

Extending the Doyle-Fuller-Newman model for Phase-Separating Materials

IonWorks

Authors: Ionworks For several decades, the Doyle-Fuller-Newman model has been the cornerstone of computational battery modeling, design, and optimization. Since the model was developed based on an assumption of Fickian diffusion in the solid active material particles, the equilibrium state in a DFN model is an electrode of compositionally homogeneous particles. While this is appropriate … Read more

Case-studies on Cell Design and Construction using the CAMS model

The Faraday Institution

This post is a compilation of three separate case-studies covering battery cell design and construction. The data and analysis for these case-studies was carried out using the Faraday Institutions CAMS model. CAMS was designed to rapidly assess the potential energy density of different cell chemistries and cell formats. The model can also be used as … Read more