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Electrochemical-thermodynamics of lithium batteries

Thursday (27.09.2018)
16:00 - 16:15 S1/01 - A01
Part of:

The thermodynamics of lithium batteries and their constructing materials determine electrochemical performances (energy density, capacity, open circuit voltage) as well as battery thermal and safety behavior. In this work, the thermodynamics of both spinel-type (lithium manganese oxide-based) and layered oxide-type (Ni-Mn-Co-oxide-based) cathode materials will be discussed. The related multi-component phase diagrams indicate the battery relevant heterogeneous reactions. Various types of calorimetry were used to measure heat capacities, enthalpies of formation and enthalpy increments, respectively. The experimental data were then used for CALPHAD-type modeling of the Li-Mn-O system in “sintered state” and “battery state”, respectively, and prediction of battery behavior in operation.

Prof. Dr. Hans Jürgen Seifert
Karlsruhe Institute of Technology (KIT)
Additional Authors:
  • Prof. Dr. Yong Du
    Central South University (CSU)
  • Dr. Weibin Zhang
    Karlsruhe Institute of Technology (KIT)
  • Dr. Dajian Li
    Karlsruhe Institute of Technology (KIT)
  • Dr. Damian Cupid
    Karlsruhe Institute of Technology (KIT)
  • Dr. Petronela Gotcu
    Karlsruhe Institute of Technology (KIT)
  • Prof. Dr. Keke Chang
    Chinese Academy of Sciences