Electrochemical Calorimetry of Lithium Secondary Batteries Using Conduction Calorimeter

Abstract

Lithium secondary batteries were already used in mobile electric devices and are expected to be one of main storage devices in electric vehicles. Calorimetric approach to lithium secondary batteries during charge and discharge operation, in other words, Electrochemical Calorimetry, is one of the powerful analytical tools to understand electrochemical reaction inside the battery. For example, the configuration information of lithium-ion in the electrode structure could be detected from the electrochemical calorimetry. In addition, we could understand the quantitative degradation mechanism of the electrodes inside battery without disassembling by this approach. In this paper, we focused on our calorimetric approach to lithium secondary batteries.