液流电池旁路电流的研究概况

Research progress of the shunt current in redox flow battery

大规模储能液流电池体系是由多个电池模块串并联构成,其中每个模块又由固定个数的串联单电池组成,其电解液通过输液总管统一供应,这种电解液供应方式会在电堆中引起旁路电流,削弱电池的性能。介绍了旁路电流产生的原因及其对液流电池系统的危害,并综述了旁路电流模型及预测旁路电流大小的数值计算方法,以及消除旁路电流可以采用的措施。

The performance of large scale redox flow battery comprised with series cell models which are made up of parallel or series single cells was reduced by the shunt current, and the reason for the shunt current was the electrolyte common to all series cells. The reason for the shunt current and the harm of the shunt current to the redox flow battery system was introduced in detail. The electrical analog module of the shunt current and the method to predict the shunt currents were reviewed, and, also discussed the solutions to suppress the shunt current.