built a half cell model with reconstructed realistic LiCoO 2 cathode electrode. The results showed that polarization voltage was negatively related with charging performance and positively related with heat generation. The electrochemical reactions and heat transfer had been added to the model. presented a Li-ion battery model coupled electrochemical-thermal. The analysis had revealed that the capacity fade was predominantly caused by loss of ions and active materials. A degradation model for Li-ion batteries was developed considering side reactions. Some researchers pay attention to increasing the battery performance and decreasing the polarization voltage by changing methods and battery components. The polarization characteristics were investigated qualitatively with the methods mentioned above. The same relation exists between the diffusion polarization and the thickness of the electrodes. The result showed that there should be a positive correlation between the diffusion polarization and the active material size at a certain range. estimated a numerical method to describe the influence factors on the diffusion polarization by numerical simulation. The individual cell in the pack develop uniform SEI resistance indicating that the pack is stable without significant split current variation. Ashwin proposed a Pseudo-Two-Dimensional porous electrode model to predict the battery pack’s overall behavior. Normally, electrochemical models are based on chemical/electrochemical kinetics and tansport equations to simulate the Li-ion batteries’ reaction. The results showed that charging time could be affected by adjusting the thickness of the cathode. The battery parameters such as the thickness of separator, the thickness of electrode and the electrolyte concentration were changed to study their influence on charging procedure. presented an equivalent circuit models to represent the electrochemical properties to predict the discharging procedure. The modified hybrid pulse power characterization test was taken for identifying the polarization resistance. for studying the polarization effect on cell voltage. An equivalent circuit model was established by Nyman et al. Numerical simulation based on mathematical models is an effective method to study the relationship between the corresponding parameters and battery performance.
So it is necessary to build a mathematical model to understand the polarization phenomenon in details. The relationship between the influencing factors and the polarization are very complex. The impact for each process to the polarization is dependent on the dynamic and kinetic material properties, the battery design and the charging-discharging mechanism. But a higher performance will result in serious polarization which is caused by mass transport limitations within the electrolyte and electrodes for the same type of battery. However, their applications are limited by the performance limitations. The Lithium-ion battery has become one of the most widely used energy storage devices because of its high energy and power densities. PXM2017_014224_000005.Ĭompeting interests: The authors have declared that no competing interests exist. KF16032 and is sponsored by funds for Cultivating Service Ability to Scientific Innovation of Beijing Municipal Commission of Education under Project No.
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All relevant data are within the paper and its Supporting Information files.įunding: This work is sponsored by the State Key Laboratory of Automotive Safety and Energy under Project No. Received: JAccepted: DecemPublished: January 2, 2018Ĭopyright: © 2018 Chen et al. PLoS ONE 13(1):Įditor: Xiaosong Hu, Chongqing University, CHINA
Citation: Chen Y, Huo W, Lin M, Zhao L (2018) Simulation of electrochemical behavior in Lithium ion battery during discharge process.