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Lattice Boltzmann modeling of transport phenomena in fuel cells and flow batteries

Acta Mechanica Sinica 2017年第3期33卷 555-574页

作者： Ao Xu Wei Shyy Tianshou Zhao HKUST Energy Institute Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and Technology

Fuel cells and flow batteries are promising technologies to address climate change and air pollution problems. An understanding of the complex multiscale and multiphysics transport phenomena occurring in these electrochemical systems requires powerful numerical tools. Over the past decades, the lattice Boltzmann (LB) method has attracted broad interest in the computational fluid dynamics and the numerical heat transfer communities, primarily due to its kinetic nature making it appropriate for modeling complex multiphase transport phenomena. More importantly, the LB method fits well with parallel computing due to its locality feature, which is required for large-scale engineering applications. In this article, we review the LB method for gas-liquid two-phase flows, coupled fluid flow and mass transport in porous media, and particulate flows. Examples of applications are provided in fuel cells and flow batteries. Further developments of the LB method are also outlined.

关键词： Lattice Boltzmann method Transport phenomena Multiphase flow Fuel cells flow batteries

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Investigation on the performance evaluation method of flow batteries

Investigation on the performance evaluation method of flow b...

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第一届全国储能科学与技术大会

作者： ZHENG Qiong XING Feng LI Xianfeng LIU Tao LAI Qinzhi NING Guiling ZHANG Huamin Division of Energy Storage Dalian Institute of Chemical PhysicsChinese Academy of Sciences

Performance evaluation method is very important for the research on flow ***-discharging test is the most typical evaluation method for flow ***,the polarization curves,together with the associated power density curves,which are commonly employed in fuel cells,have come into use for flow batteries’ performance *** on the investigation of performance evaluation method,it is confirmed that the charging-discharging test is optimal for flow batteries’ performance evaluation.A comparison of voltage losses(voltage efficiency,VE) can be clearly delivered from the polarization curves,which are quite practical for fuel cells’ performance *** for flow batteries,apart from VE,coulombic efficiency(CE),energy efficiency(EE),utilization of electrolyte(UE) and capacity stability should be seriously considered during charging-discharging ***,CE and UE are inaccessible;accordingly EE and capacity stability can’t be detected from polarization ***,the polarization curve is improper to serve as a performance evaluation method for flow *** the premise of a proper CE,a rough performance evaluation for flow batteries can be achieved via the polarization *** peak power density is of limited significance in practical use due to the extremely low EE and low energy storage capacity obtained at that point.

关键词： performance evaluation method flow batteries charging-discharging performance test polarization curve

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A Long Cycle Life Self-Healing Zinc-Iodine flow Battery with High Power Density

A Long Cycle Life Self-Healing Zinc-Iodine Flow Battery with...

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中国化学会第三届中国能源材料化学研讨会

作者： Congxin Xie Xianfeng Li Division of Energy Storage Dalian Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

＜正＞flow batteries are one of the most promising technology to realize the large-scale utilization of renewable energy due to the perfect combination of high safety,efficiency and long cycle life *** as the cost and energy density,zinc iodine flow battery（ZIFB） achieved great attention owning to the high solubility and excellent electrochemical property.

关键词： flow batteries zinc-iodine power density self-healing cycle life

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