A Review of Cell Equalization Methods for Lithium Ion and Lithium Polymer Battery Systems

2001-01-0959

03/05/2001

Event
SAE 2001 World Congress
Authors Abstract
Content
Lithium-based battery technology offers performance advantages over traditional battery technologies at the cost of increased monitoring and controls overhead. Multiple-cell Lead-Acid battery packs can be equalized by a controlled overcharge, eliminating the need to periodically adjust individual cells to match the rest of the pack. Lithium-based based batteries cannot be equalized by an overcharge, so alternative methods are required. This paper discusses several cell-balancing methodologies. Active cell balancing methods remove charge from one or more high cells and deliver the charge to one or more low cells. Dissipative techniques find the high cells in the pack, and remove excess energy through a resistive element until their charges match the low cells. This paper presents the theory of charge balancing techniques and the advantages and disadvantages of the presented methods.
Meta TagsDetails
DOI
https://doi.org/10.4271/2001-01-0959
Pages
7
Citation
Moore, S., and Schneider, P., "A Review of Cell Equalization Methods for Lithium Ion and Lithium Polymer Battery Systems," SAE Technical Paper 2001-01-0959, 2001, https://doi.org/10.4271/2001-01-0959.
Additional Details
Publisher
Published
Mar 5, 2001
Product Code
2001-01-0959
Content Type
Technical Paper
Language
English