Wang Yiyu, Niu Zhihui, Zheng Qi, Zhang Changkun, Ye Jing, Dai Gaole, Zhao Yu, Zhang Xiaohong
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China.
Testing & Analysis Centre, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China.
Sci Rep. 2018 Apr 10;8(1):5740. doi: 10.1038/s41598-018-24059-x.
Developing greener batteries with new chemistries is a formidable challenge, and a major focus for years to come. Redox flow batteries are receiving increasing research interest for grid-scale electrochemical energy storage owing to their unique architecture. However, challenges still remain by their low energy density as well as corrosive and/or toxic electrolytes. An anolyte based on aprotic Zn deep-eutectic-solvent, which uses low cost, abundant and environmentally benign materials, exhibits a utilizable concentration of Zn ca. 1.7 M, resulting in a reversible volumetric capacity of ca. 90 A h·L. Combined with high efficiencies and relatively low redox potential of -1.12 V vs. Ag/AgCl, such an anolyte provides an alternative way to explore a family of anolytes using new chemistries for rechargeable Zn batteries that meet the criteria for grid-scale electrical energy storage.
开发具有新型化学组成的更环保电池是一项艰巨的挑战，也是未来数年的主要研究重点。氧化还原液流电池因其独特的结构而在电网规模的电化学储能领域受到越来越多的研究关注。然而，由于其能量密度低以及电解质具有腐蚀性和/或毒性，挑战依然存在。一种基于非质子型锌深共熔溶剂的阳极电解液，使用低成本、储量丰富且环境友好的材料，展现出约1.7 M的可利用锌浓度，产生约90 A·h·L的可逆体积容量。结合高效率以及相对于Ag/AgCl为-1.12 V的相对较低氧化还原电位，这种阳极电解液为探索一系列使用新型化学组成的阳极电解液提供了一条替代途径，用于满足电网规模电能存储标准的可充电锌电池。
