锂离子液流电池电极悬浮液研究进展

摘要

The research progress in electrode suspensions of lithium-ion flow battery (LFB) was reviewed. LFB combines the working principles of lithium-ion battery and the structure characteristics of redox flow battery, with the independent power output and storage capacity, large energy density and comparatively low cost. LFB is suitable for the application in the future grid energy storage systems. For the LFB, the electrode suspension is one of the most important functional materials, because its conductive and rheological properties determine the energy density and rate performance of the battery. The technical bottlenecks and the research focuses were analyzed on the basis of the experimental data. The conductive mechanism, the specific capacity and the rheological properties are the important research contents of the electrode suspension for the establishment of a unified evaluation system.%锂离子液流电池将锂离子电池的工作原理与传统液流电池的结构特点相结合，是一种正处于基础技术开发阶段的新型电化学储能电池技术，具有输出功率和储能容量彼此独立、成本较低等特点，适用于未来电网储能领域。电极悬浮液作为实现锂离子液流电池充放电功能的主体材料，其导电性能和流动性能是影响锂离子液流电池倍率特性和能量密度的重要因素。论文结合实验数据对该方向面临的主要技术问题及研究重点进行了分析，认为电极悬浮液的研究需要从导电机理、质量比容量、流变性能等方面进一步深入研究，并建立标准评价体系。