Accession Number:

ADA426354

Title:

Thermal and Electrochemical Models for Batteries During High Rates of Discharge

Descriptive Note:

Final rept. 1 May 1998-31 Dec 2001

Corporate Author:

SOUTH CAROLINA UNIV COLUMBIA OFFICE OFSPONSORED PROGRAMS

Personal Author(s):

Report Date:

2004-08-15

Pagination or Media Count:

232.0

Abstract:

The first of the three pans of this work documents the effort toward the original objective of the grant understanding how commercial software could be modified to understand the three dimensional thermal and electrochemical gradients in a silverzinc battery during high rates of discharge. This objective had broad applications for accelerated design of new batteries if we could use the mathematical solvers in commercial software packages because these software packages have automatic grid generation procedures. Unfortunately the state of the an of those software packages in 2000 required extensive custom modification and we concluded that the complex models of battery required too much computation time to be useful for transient behavior of the AgZn system. The second pan documents where an understanding of the 3-D transient behavior can be obtained with commercial software modified to account for the electrochemistry. The third pan of this report documents the experimental work on transient behavior of fuel cells. In this third pan, we were able to demonstrate how complete 3-D models may lead to improved design and operation.

Subject Categories:

  • Electrochemical Energy Storage
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE