Study on impedance model of Li-ion battery

Author

Luo, Weilin ; Lv, Chao ; Wang, Lixin ; Liu, Chao

Author_Institution

Sch. of Electr. Eng. & Autom., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

21-23 June 2011

Firstpage

1943

Lastpage

1947

Abstract

Impedance model contains a lot of information that can indicate performance of battery. Therefore, establishment of accurate impedance model is very important. In this paper, impedance model of Li-ion battery is examined by electrochemical mechanisms analysis and experimental measurement. The basis for the form of the model has been linked to internal processes of the battery and validated using experimental data. The impedance behavior during individual discharge cycles as well as over its cycle life is obtained. The proposed model will greatly help research on circuit simulation, multi-cell battery analysis, battery test and monitoring, prognostics and battery health management.

Keywords

lithium; secondary cells; Li; Li-ion battery; battery health management; battery test; circuit simulation; discharge cycles; electrochemical mechanisms analysis; impedance model; multi-cell battery analysis; Aging; Batteries; Discharges; Electrodes; Impedance; Integrated circuit modeling; Resistance; Li-ion battery; experimental measurement; impedance model; theoretical analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on

Conference_Location

Beijing

ISSN

pending

Print_ISBN

978-1-4244-8754-7

Electronic_ISBN

pending

Type

conf

DOI

10.1109/ICIEA.2011.5975910

Filename

5975910