You can measure the heat generation reaction during the discharge process of lithium-ion batteries!
Lithium-ion batteries charge and discharge. It is also well-known that they generate heat, which can lead to thermal runaway accidents due to this heat generation. The positive and negative electrodes during charging and discharging are thought to undergo endothermic reactions that are mutually opposing, stemming from the reversible intercalation reactions. This technical document introduces the detection of the endothermic and exothermic reactions of the positive and negative electrodes in the charging and discharging process of lithium-ion batteries, which exhibit characteristics of charging and heat generation. [Contents (excerpt)] - Detection of the endothermic and exothermic reactions of the positive and negative electrodes during the charging and discharging process. - Endothermic and exothermic curves of the microbattery's charging and discharging process (0.125mA CCCV mode). - Endothermic reaction of the positive electrode. - Endothermic reaction of the negative electrode. - Endothermic heat curves of the positive and negative electrodes during a 0.05C equivalent 0.125mA charge-discharge cycle, etc. *For more details, please refer to the PDF document or feel free to contact us.
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Our company works in the field of thermal safety evaluation to prevent thermal runaway accidents involving chemical substances. To achieve this, we analyze reaction kinetics parameters from thermal measurement data of a few milligrams of chemical substances and provide a measurement and analysis system that enables thermal safety evaluation when the chemical substances are scaled up to kg to 1000 kg. Additionally, we offer an evaluation system that combines isothermal microcalorimeters (IMC) for lithium-ion batteries and DSC with AKTS analysis software, allowing for comprehensive measurement of the entire battery.
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