A1 Journal article (refereed), original research

Thermal parameters determination of battery cells by local heat flux measurements

Publication Details
Authors: Murashko Kiril A., Mityakov Andrey V., Pyrhönen Juha, Mityakov V.Y., Sapozhnikov S.S.
Publication year: 2014
Language: English
Related Journal or Series Information: Journal of Power Sources
Volume number: 271
Start page: 48
End page: 54
JUFO-Level of this publication: 2
Open Access: Not an Open Access publication

A new approach to define of the thermal parameters, such as heat capacity and through-plane thermal conductivity, of pouch-type cells is introduced. Application of local heat flux measurement with a gradient heat flux sensor (GHFS) allows determination of the cell thermal parameters in different surface points of the cell. The suggested method is not cell destructive as it does not require deep discharge of the cell or application of any charge/discharge cycles during the measurements of the thermal parameters of the cell. The complete procedure is demonstrated on a high-power lithium-ion (Li-ion) pouch cell, and it is verified on a sample with well-known thermal parameters. A comparison of the experimental results with conventional thermal characterization methods shows an acceptably low error. The dependence of the cell thermal parameters on the state of charge (SoC) and measurement points on the surface was studied by the proposed measurement approach.

Research Areas

Last updated on 2017-22-03 at 16:17