氧化还原液流电池（Redox flow batteries，RFBs）广泛应用于大规模储能领域。但因RFBs存在导电性差、稳定性弱等问题而使其应用受到了限制。设计并制备了基于石墨的负极浆料用于氧化还原液流电池，对石墨浆料的制备方法进行了筛选，并考察了导电剂科琴黑（KB）在浆料中的质量分数对浆料性能的影响；对优化条件下制备的浆料的电化学性能进行了研究。结果表明，使用球磨法，添加KB的质量分数为1.4%~1.6%时制备的石墨浆料具有较好的性能，在电流密度为74.4 mA/g时，石墨的充电比容量可达294 mA·h/g。

Redox flow batteries (RFBs) have received extensive attention due to their promising potential in large-scale energy storage applications.However,RFBs still suffer limits in applications due to their weak stability,low conductivity and some other problems.Therefore,graphite-based anode slurry is designed and prepared for lithium-ion redox flow batteries.Preparation method for graphite slurry is screened out and the influences of KB content in the slurry are investigated.Electrochemical performances of slurries prepared under optimized conditions are studied.The results demonstrate that ball milling method is a better method and the most suitable content of KB in graphite-based slurry is in the range of 1.4%-1.6%.By using the slurry prepared under the optimal conditions,the specific capacity of graphite can reach 294 mA·h·g^-1 at a current density of 37.2 mA·g^-1.

陈申(1994-),男,硕士研究生,主要从事液流电池方面的研究,243279259@qq.com