cetylene. It has been revealed that the fundamental electrochemical properties are affected mostly by the water-solubility and chemical stability of the particular redox forms. Based on the systematically evolved azinium structure and gathered electrochemical data, structure–property relationships were thoroughly elucidated. Further investigation on flow battery cells identified that the known 4,4′-bipyridinium
MATERIALS FOR USE IN AN AQUEOUS ORGANIC REDOX FLOW BATTERY
申请人:Liu Tianbiao
公开号:US20180072669A1
公开(公告)日:2018-03-15
Described herein are aqueous organic redox flow batteries that include a first redox active material that can include a metallocene or a salt thereof, and a second redox active material that can include a viologen or a salt thereof. The aqueous organic redox flow batteries may further include a first aqueous electrolyte, a second aqueous electrolyte, and a separator between the first and second aqueous electrolytes. In addition, disclosed herein are methods of making the metallocene and viologen compounds.
作者:Camden DeBruler、Bo Hu、Jared Moss、Xuan Liu、Jian Luo、Yujie Sun、T. Leo Liu
DOI:10.1016/j.chempr.2017.11.001
日期:2017.12
electrode. The neutralaqueousflowbatteries with two two-electron storage viologen molecules delivered a cell voltage of up to 1.38 V and outstanding battery performance, including a power density of up to 130 mW/cm2, capacity retention of up to 99.99% per cycle, and energy efficiency of up to 65% at 60 mA/cm2. Density functional theory calculations revealed that the 1e− and 2e− reduced redox states of
水性有机氧化还原液流电池(AORFB)在大规模储能方面具有很高的吸引力,因为氧化还原活性有机分子具有合成可调性,可持续性和潜在的低成本优势。在这里,我们表明合理的分子工程产生了一系列的两个电子存储紫精分子作为AORFBs的阳极电解液材料。在中性NaCl溶液中,这些紫精阳极电解液在H 2 O中的理论容量高达96.5 Ah / L,与常规氢电极相比,还原电位低至-0.78V。具有两个双电子储存紫精分子的中性水性液流电池可提供高达1.38 V的电池电压和出色的电池性能,包括高达130 mW / cm 2的功率密度,每个周期的容量保持率高达99.99%,在60 mA / cm 2时的能量效率高达65%。密度泛函理论计算表明,1E -和2e -这些分子的还原的氧化还原状态被其前沿SOMO或HOMO的高电荷离域稳定。
On the Tunability of Toxicity for Viologen‐Derivatives as Anolyte for Neutral Aqueous Organic Redox Flow Batteries
作者:Sandra de la Parra、Juan Antonio Tamayo‐Ramos、Rubén Rubio‐Presa、Daniel Perez‐Antolin、Virginia Ruiz、Roberto Sanz、Carlos Rumbo、Edgar Ventosa
DOI:10.1002/cssc.202300626
日期:2023.12.19
Viologen toxicity: The long-established toxicity of the herbicide methyl-viologen raises concern for deployment of viologen-derivatives as anolyte for neutral aqueousorganicredoxflowbatteries (AORFB) at large scale. Here we show that non-toxic viologen derivatives can be molecularly engineered, holding great promise as safe anolytes for AORFB.