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The State of Charge of Electrodes and its effects on Lithium-Iron-Phosphate Battery Simulation

机译：电极的充电状态及其对锂铁磷酸盐电池模拟的影响

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Accuracy of simulated LFP battery characteristics, including the cell voltage, lithium concentration distribution, and cell capacity, are highly related to the solid-phase initial concentrations of each individual electrode. To determine the initial concentrations of individual electrodes of the LFP battery, equilibrium potentials are experimentally measured by low-rate discharge while the characteristic points are calculated by identifying critical points of the discharge curves. The LFP battery model with such formally determined concentrations is validated by comparing the simulated discharge curves with experimental measurements under various loading demands. Further understanding of the effects of lithium loss during activation process with experiments and model simulation can assist the LFP battery design and optimize fabrication.

机译：模拟的LFP电池特性（包括电池电压，锂浓度分布和电池容量）的准确性与每个电极的固相初始浓度高度相关。为了确定LFP电池各个电极的初始浓度，通过低倍率放电实验测量了平衡电势，同时通过确定放电曲线的临界点来计算特征点。通过将模拟放电曲线与各种负载需求下的实验测量值进行比较，可以验证具有这种形式确定浓度的LFP电池模型。通过实验和模型仿真进一步了解活化过程中锂损失的影响，可以帮助LFP电池设计和优化制造。

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来源
《Battery modeling and computation》|2016年|1-10|共10页
会议地点 San Diego(US)
作者
H. H. Huang; W. L. Chung; K. C. Liao; C. F. Lee; J. Y. Tien; H. T. Young; H. Y. Chen;
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作者单位

Department of Bio-Industrial Mechatronics Engineering, National Taiwan University;

Department of Mechanical Engineering, National Taiwan University;

Department of Bio-Industrial Mechatronics Engineering, National Taiwan University;

Phoenix Silicon International Corporation;

Phoenix Silicon International Corporation;

Department of Mechanical Engineering, National Taiwan University;

Department of Bio-Industrial Mechatronics Engineering, National Taiwan University;

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原文格式 PDF
正文语种 eng
中图分类
关键词
lithium-iron-phosphate battery; electrochemical model; COMSOL;

机译：磷酸铁锂电池；电化学模型COMSOL;

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1. Thermal-electrochemical coupled simulations for cell-to-cell imbalances in lithium-iron-phosphate based battery packs [J] . Huang Hsuan-Han, Chen Hsun-Yi, Liao Kuo-Chi, Applied thermal engineering: Design, processes, equipment, economics . 2017,第期

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2. Sedimentation of lithium-iron-phosphate and carbon black particles in opaque suspensions used for lithium-ion-battery electrodes [J] . Balbierer R., Gordon R., Schuhmann S., Journal of Materials Science . 2019,第7期

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3. Experimental and simulation study on thermal characteristics of 18,650 lithium-iron-phosphate battery with and without spot-welding tabs [J] . Applied thermal engineering: Design, processes, equipment, economics . 2020,第期

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4. The State of Charge of Electrodes and its effects on Lithium-Iron-Phosphate Battery Simulation [C] . H. H. Huang, W. L. Chung, K. C. Liao, Symposium on battery modeling and computation . 2016

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5. Numerical and Experimental Study of Lithium Ion Battery Electrode Thickness and Charging Strategies [D] . Xu, Meng . 2019

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6. Distinct charge dynamics in battery electrodes revealed by in situ and operando soft X-ray spectroscopy [O] . Xiaosong Liu, Dongdong Wang, Gao Liu, -1

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7. Lithium-Ion Batteries: Multiscale Morphological and Electrical Characterization of Charge Transport Limitations to the Power Performance of Positive Electrode Blends for Lithium-Ion Batteries (Adv. Energy Mater. 8/2017) [O] . Besnard, Nicolas, Etiemble, Aurélien, Douillard, Thierry, 2017

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8. Solid Electrolyte/Electrode Interfaces: Atomistic Behavior Analyzed via UHV-AFM, Surface Spectroscopies and Computer Simulations. Computational and Experimental Studies of the Cathode/Electrolyte Interface in Oxide Thin Film Batteries; and Atomistic-Level [R] . 2007

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The State of Charge of Electrodes and its effects on Lithium-Iron-Phosphate Battery Simulation

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