Nonlinear parameter estimation for capacity fade in Lithium-ion cells based on a reduced-order electrochemical model

2012 ◽  
Author(s):  
J. Marcicki ◽  
F. Todeschini ◽  
S. Onori ◽  
M. Canova
Keyword(s):  
Parameter Estimation ◽  
Lithium Ion ◽  
Nonlinear Parameter ◽  
Capacity Fade ◽  
Reduced Order ◽  
Nonlinear Parameter Estimation ◽  
Lithium Ion Cells ◽  
Electrochemical Model

A Closed Form Reduced Order Electrochemical Model for Lithium-Ion Cells

2019 ◽  
Vol 166 (6) ◽  
pp. A1197-A1210 ◽  
Author(s):  
Ashwini Kumar Sharma ◽  
Suman Basu ◽  
Krishnan S. Hariharan ◽  
Shashishekhara P Adiga ◽  
Subramanya Mayya Kolake ◽  
...  
Keyword(s):  
Closed Form ◽  
Lithium Ion ◽  
Reduced Order ◽  
Lithium Ion Cells ◽  
Electrochemical Model

scholarly journals The operation and capacity fade modelling of the lithium-ion cell for electric vehicles

2019 ◽  
Vol 108 ◽  
pp. 01017
Author(s):  
Damian Burzyński ◽  
Leszek Kasprzyk
Keyword(s):  
Electric Vehicles ◽  
Lithium Ion ◽  
Model Parameters ◽  
Average Charge ◽  
Variable Load ◽  
Capacity Fade ◽  
Lithium Ion Cells ◽  
Lithium Ion Cell ◽  
Electrochemical Model ◽  
Nickel Manganese

The paper deals with the issues related to the operation and capacity fade modelling of lithium-ion cells. It includes the presentation of the electrochemical model of the cell in which the phenomenon of diffusion and transfer of charge on electrodes and in electrolyte was discussed. The circuit model of the cell designed for analysis of its behaviour in the conditions of the dynamically variable load was presented. The key aging processes which occur during the operation of the cells were characterised, and their impact on the wear of the cell was discussed. The model of the capacity fade of the lithium-nickel-manganese-cobalt cell was developed. The model parameters depends on the ambient temperature, the value of load current and the value of the average charge current. The results of the model were verified with the laboratory measurement.

Experimental Evaluation of the Effect of Cycle Profile on the Durability of Commercial Lithium Ion Power Cells

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
K. N. Radhakrishnan ◽  
T. Coupar ◽  
D. J. Nelson ◽  
M. W. Ellis
Keyword(s):  
Lithium Ion ◽  
Critical Factor ◽  
Internal Resistance ◽  
Wave Profile ◽  
Total Charge ◽  
Capacity Fade ◽  
Square Wave ◽  
Lithium Ion Cells ◽  
Discharge Profile ◽  
Testing Protocols

The effect of the charge/discharge profile on battery durability is a critical factor for the application of batteries and for the design of appropriate battery testing protocols. In this work, commercial high-power prismatic lithium ion cells for hybrid electric vehicles (HEVs) were cycled using a pulse-heavy profile and a simple square-wave profile to investigate the effect of cycle profile on battery durability. The pulse-heavy profile was designed to simulate on-road conditions for a typical HEV, while the simplified square-wave profile was designed to have the same total charge throughput, but with lower peak currents. The 5 Ah batteries were cycled for 100 kAh with periodic performance tests to monitor the state of the batteries. Results indicate that, for the batteries tested, the capacity fade for the two profiles was very similar and was 11±0.5% compared to beginning of life (BOL). The change in internal resistance of the batteries during testing was also monitored and found to increase 21% and 12% compared to BOL for the pulse-heavy and square-wave profiles, respectively. The results suggest that simplified testing protocols using square-wave cycling may provide adequate insight into capacity fade behavior for more complex hybrid vehicle drive cycles.

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