4.6 Article

Dimensional Changes in Automotive Pouch Li-Ion Cells: A Combined Thermo-Mechanical/Electrochemical Study

Journal

JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 163, Issue 10, Pages A2304-A2311

Publisher

ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0831610jes

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In this work it is proposed an integrated measurement system able to measure simultaneously mechanical properties, dimensional variations and Young modulus, of a pouch lithium-ion battery under operative conditions. At the same time, the designed integrated system allows also the measurement of both electrochemical main quantities (current and potentials) and temperature distribution. The complex testing capabilities system was implemented in an owner-lab-made apparatus. Experimental data collected both under normal operational conditions, as well as on abused batteries, allow to establish safer operational limits and to determine proper operation conditions to prevent the battery malfunctioning. (C) 2016 The Electrochemical Society. All rights reserved.

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