The effect of electrode design parameters on battery performance and optimization of electrode thickness based on the electrochemical–thermal coupling model

2019 ◽  
Vol 3 (1) ◽  
pp. 148-165 ◽  
Author(s):  
Wenxin Mei ◽  
Haodong Chen ◽  
Jinhua Sun ◽  
Qingsong Wang
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Coupling Model ◽  
Design Parameters ◽  
Electrode Design ◽  
Thermal Coupling ◽  
Electrode Thickness ◽  
Electrochemical Model

Schematic of the lithium-ion battery and description of the P2D electrochemical model.

scholarly journals Mechanism of influence of separator microstructure on performance of lithium-ion battery based on electrochemical-thermal coupling model

2019 ◽  
Vol 68 (1) ◽  
pp. 018201
Author(s):  
Zeng Jian-Bang ◽  
Guo Xue-Ying ◽  
Liu Li-Chao ◽  
Shen Zu-Ying ◽  
Shan Feng-Wu ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Coupling Model ◽  
Thermal Coupling

Simulation and parameter identification based on electrochemical- thermal coupling model of power lithium ion-battery

2020 ◽  
Vol 844 ◽  
pp. 156003 ◽  
Author(s):  
Yu Liu ◽  
Shui Tang ◽  
Lixiang Li ◽  
Fangyang Liu ◽  
Liangxing Jiang ◽  
...  
Keyword(s):  
Parameter Identification ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Coupling Model ◽  
Thermal Coupling

A Nonlinear Observer SOC Estimation Method Based on Electrochemical Model for Lithium-Ion Battery

2021 ◽  
Vol 57 (1) ◽  
pp. 1094-1104
Author(s):  
Yuntian Liu ◽  
Rui Ma ◽  
Shengzhao Pang ◽  
Liangcai Xu ◽  
Dongdong Zhao ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Estimation Method ◽  
Lithium Ion ◽  
Nonlinear Observer ◽  
Soc Estimation ◽  
Electrochemical Model

scholarly journals Electrochemical Model-Based Investigation of Thick LiFePO4 Electrode Design Parameters

Modelling ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 259-287
Author(s):  
Robert Franke-Lang ◽  
Julia Kowal
Keyword(s):  
Lithium Ion Batteries ◽  
Porous Electrode ◽  
Lithium Ion ◽  
Size Composition ◽  
Design Parameters ◽  
Model Parameters ◽  
Electrode Structure ◽  
Transport Channel ◽  
Scale Particle ◽  
Electrochemical Model

The electrification of the powertrain requires enhanced performance of lithium-ion batteries, mainly in terms of energy and power density. They can be improved by optimising the positive electrode, i.e., by changing their size, composition or morphology. Thick electrodes increase the gravimetric energy density but generally have an inefficient performance. This work presents a 2D modelling approach for better understanding the design parameters of a thick LiFePO4 electrode based on the P2D model and discusses it with common literature values. With a superior macrostructure providing a vertical transport channel for lithium ions, a simple approach could be developed to find the best electrode structure in terms of macro- and microstructure for currents up to 4C. The thicker the electrode, the more important are the direct and valid transport paths within the entire porous electrode structure. On a smaller scale, particle size, binder content, porosity and tortuosity were identified as very impactful parameters, and they can all be attributed to the microstructure. Both in modelling and electrode optimisation of lithium-ion batteries, knowledge of the real microstructure is essential as the cross-validation of a cellular and lamellar freeze-casted electrode has shown. A procedure was presented that uses the parametric study when few model parameters are known.

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