TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Kupper, Christian
A1  - Spitznagel, Svenja
A1  - Döring, Harry
A1  - Danzer, Michael A.
A1  - Gutierrez, César
A1  - Kvasha, Andriy
A1  - Bessler, Wolfgang G.
T1  - Combined modeling and experimental study of the high-temperature behavior of a lithium-ion cell: Differential scanning calorimetry, accelerating rate calorimetry and external short circuit
JF  - Electrochimica Acta
N2  - In this article the high-temperature behavior of a cylindrical lithium iron phosphate/graphite lithium-ion cell is investigated numerically and experimentally by means of differential scanning calorimetry (DSC), accelerating rate calorimetry (ARC), and external short circuit test (ESC). For the simulations a multi-physics multi-scale (1D+1D+1D) model is used. Assuming a two-step electro-/thermochemical SEI formation mechanism, the model is able to qualitatively reproduce experimental data at temperatures up to approx. 200 °C. Model assumptions and parameters could be evaluated via comparison to experimental results, where the three types of experiments (DSC, ARC, ESC) show complementary sensitivities towards model parameters. The results underline that elevated-temperature experiments can be used to identify parameters of the multi-physics model, which then can be used to understand and interpret high-temperature behavior. The resulting model is able to describe nominal charge/discharge operation behavior, long-term calendaric aging behavior, and short-term high-temperature behavior during extreme events, demonstrating the descriptive and predictive capabilities of physicochemical models.
Y1  - 2019
SN  - 0013-4686
SS  - 0013-4686
U6  - https://doi.org/10.1016/j.electacta.2019.03.079
DO  - https://doi.org/10.1016/j.electacta.2019.03.079
VL  - 306
IS  - 306
SP  - 209
EP  - 219
PB  - Elsevier Limited
ER  -