I am performing battery thermal analysis using DSC. I have tested there samples for 3 heating rates, 10, 15 and 20 deg Celsius per minute.
Dear Ayushi Mehrotra,
there is the file in the attachment (see Fig.5). Hope, it will help you.
Regards,
I can't give any mechanistic explanations, since the object is unknown. But as you did experiments at various heating rates, i can comment the quality of these data as a raw data for thermokinetic modeling. For now it is low. Main peaks have very high magnitude, and to resolve these peaks you have to decrease the sample mass and/or heating rates. By heat effect this object can be compared with energetic material, and there we often go down to 0.15 K/min by HR, and to 0.1 mg at high heating rates you use here. You may use the recommendation from old ASTM E698 to keep the amplitude of DSC below 8 mW, as a initial guidance. As for the first (flat) peak, it may be an artifact, but if you want to analyze it, there the increased sample masses should be taken, and the maximal T limited not to reach the main exothermic process
Best,
NM
Hi Ayushi,
I would like to answer your queries. Could you please provide the details of materials that you used to perform DSC measurement?
Md Amir Sohel the materials used are battery electrodes. NCA as cathode material and graphite as the anode material
Ayushi Mehrotra There are three different signals. Please specify the material of individual DSC signals.
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