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| Home > Publications database > Thermal analysis of LiNi0.4Co0.2Mn0.4O2/mesocarbon microbeads cells and electrodes: State-of-charge and state-of-health influences on reaction kinetics > print |
| Home > Publications database > Thermal analysis of LiNi0.4Co0.2Mn0.4O2/mesocarbon microbeads cells and electrodes: State-of-charge and state-of-health influences on reaction kinetics > print |
| 001 | 851171 | ||
| 005 | 20240712113112.0 | ||
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| 037 | _ | _ | |a FZJ-2018-04871 |
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| 100 | 1 | _ | |a Hildebrand, S |0 P:(DE-HGF)0 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Thermal analysis of LiNi0.4Co0.2Mn0.4O2/mesocarbon microbeads cells and electrodes: State-of-charge and state-of-health influences on reaction kinetics |
| 260 | _ | _ | |a Pennington, NJ |c 2018 |b Electrochemical Soc. |
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| 520 | _ | _ | |a The thermal stability of lithium ion batteries was studied by means of Accelerating Rate Calorimetry in Heat-Wait-Search operation on both electrode and cell level. Fresh and aged samples were investigated depending on the state-of-charge (SoC) of a 5 Ah pouch cell comprising mesocarbon microbeads and LiNi0.4Co0.2Mn0.4O2 as the anode and cathode materials. 1 M LiPF6 in EC:DEC 3:7 (by weight) containing 2 wt% VC and 0.5 wt% LiBOB was chosen as the electrolyte. Measurements on the electrode level revealed a higher self-heating rate (SHR) of the cathode compared to the anode for all SoC and state-of-health (SoH) combinations in the temperature range where a self-sustaining decomposition reaction could be detected. A lower SoC showed a lower SHR of the electrode/electrolyte mixture with no reaction detected on the anode side ≤ 50% cell SoC. Cyclic aging led to a decrease in thermal stability of the cathode at lower SoC values with no significant influence on the anode implying a larger safety threat on the cell level. Avrami-Erofeev and autocatalytic reaction models were used to quantify the influences of SoC and SoH on reaction kinetics. Full cell measurements confirmed the observations at a higher SHR. |
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| 700 | 1 | _ | |a Rheinfeld, A. |0 P:(DE-HGF)0 |b 1 |e Corresponding author |
| 700 | 1 | _ | |a Friesen, A |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Haetge, J |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Schappacher, F. M |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Jossen, A |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 6 |e Corresponding author |u fzj |
| 773 | _ | _ | |a 10.1149/2.0361802jes |0 PERI:(DE-600)2002179-3 |p A104-A117 |t Journal of the Electrochemical Society |v 165 |y 2018 |x 0013-4651 |
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