Study of the Effect of Electrode Microstructures on Battery Performance

Abstract

Battery performance reflects the transport and kinetics of related species within the microstructures of battery's electrode. However, the current homogenized battery models lack detailed morphology of the internal structures of electrodes. In this work, a multiscale battery simulation tool is developed. This model is capable of capturing the impact of microstructures of electrodes on battery performance, by adapting the variational multiscale principle. The developed model is verified through the direct numerical solutions, and compared with the conventional pseudo-2D (P2D) model method. The model has revealed more dynamic battery behaviors related to the variation of the microstructure, such as particle shape, tortuosity, and material composition, while the corresponding result from P2D shows a monotonous change within different structures.

Meeting Name

ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 (2015: Nov. 13-19, Houston, TX)

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Battery management systems; Electrodes; Microstructure; Numerical methods, Battery performance; Different structure; Dynamic battery; Electrode microstructures; Internal structure; Material compositions; Numerical solution; Variational multiscale, Electric batteries

International Standard Book Number (ISBN)

978-079185743-4

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 American Society of Mechanical Engineers (ASME), All rights reserved.

Publication Date

01 Nov 2015

Link to Full Text

Share

 
COinS