液流电池的流动因素研究综述

A Review of Research on Flow Influencing Factors in Redox Flow Batteries

液流电池是一种安全性高、循环寿命长的电化学储能技术,可以作为解决可再生能源的不连续、不稳定问题的有效技术。液流电池内部的流动过程十分复杂,在多种因素下共同影响着液流电池性能。基于小面积液流电池和工程化的大规模液流电池储能系统,介绍了小面积的液流电池中双极板刻蚀流场结构、分配通道布置、优化流道尺寸、流速等;而在大规模液流电池储能系统中着重研究泵功损失、管道尺寸设计及排布方式等对影响流动的关键因素。此外,还介绍了液流电池的关键材料性质如电极压缩比、电解液粘度也对电池内部的流动产生不可忽视的影响。为以后研究流动因素对于液流电池性能的影响提供一定的参考。

Redox flow battery is an electrochemical energy storage technology with high safety and long cycle life,which can be used as an effective technology to solve the discontinuity and instability problems of renewable energy.The flow process inside the all-vanadium redox flow battery is very complicated.Under a variety of flow factors,the performance of redox flow battery is jointly affected.Based on the small-scale redox flow battery and engineering large-scale redox flow battery energy storage system,this article introduces the structure of bipolar plate etching flow fields in the redox flow battery,distribution channel layout,optimizing the size of the flow fields,rate of flow,Waiting;and in the large-scale redox flow battery energy storage system,pumping power loss and the arrangement of the pipeline system are focused on the key factors that affect flow.In addition,the nature of the key material of the redox flow battery,such as electrode compression ratio,and electrolyte viscosity,also have the impact on the flow inside the battery.Provide a certain reference for the impact of redox factors on redox battery performance in the future.