scholarly journals High energy density electrolytes for H2/Br2 redox flow batteries, their polybromide composition and influence on battery cycling limits

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 5218-5229
Author(s):  
Michael Küttinger ◽  
Jakub K. Wlodarczyk ◽  
Daniela Daubner ◽  
Peter Fischer ◽  
Jens Tübke
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
First Time

Polybromides formation in aqueous bromine electrolytes and influence on H2/Br2 redox flow battery performance is investigated the first time.

An Energy Dense, Robust, Powerful Bipolar Zinc-Ferrocene Redox Flow Battery

2020 ◽  
Author(s):  
Jian Luo ◽  
Bo Hu ◽  
Wenda Wu ◽  
Maowei Hu ◽  
Leo Liu
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Low Cost ◽  
High Energy ◽  
High Energy Density ◽  
Redox Flow Battery ◽  
Power Performance ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Flow Batteries

Redox flow batteries (RFBs) have been recognized as a promising option for scalable and dispatchable renewable energy storage (e.g. solar and wind energy). Zinc metal represents a low cost, high capacity anode material to develop high energy density aqueous redox flow batteries. However, the energy storage applications of traditional inorganic Zn halide flow batteries are primarily plagued by the material challenges of traditional halide cathode electrolytes (e.g. bromine) including corrosion, toxicity, and severe crossover. As reported here, we have developed a bipolar Zinc-ferrocene salt compound, Zinc 1,1’-bis(3-sulfonatopropyl)ferrocene, Zn[Fc(SPr)2] (1.80 M solubility or 48.2 Ah/L charge storage capacity) – a robust, energy-dense, bipolar redox-active electrolyte material for high performance Zn organic RFBs. Using a low-cost porous Daramic membrane, the Zn[Fc(SPr)2] aqueous organic redox flow battery (AORFB) has worked in dual-flow and single-flow modes. It has manifested outstanding current, energy, and power performance, specifically, operating at high current densities of up to 200 mA/cm2 and delivering an energy efficiency of up to 81.5% and a power density of up to 270.5 mW/cm2. A Zn[Fc(SPr)2] AORFB demonstrated an energy density of 20.2 Wh/L and displayed 100% capacity retention for 2000 cycles (1284 hr or 53.5 days). The Zn[Fc(SPr)2] ionic bipolar electrolyte not only offers record-setting, highly-stable, energy-dense, and the most powerful Zn-organic AORFBs to date, but it also provides a new paradigm to develop even more advanced redox materials for scalable energy storage.

A self-healing Li-S redox flow battery with alternative reaction pathways

2021 ◽  
Author(s):  
Qiliang Chen ◽  
Wei Guo ◽  
Donghai Wang ◽  
Yongzhu Fu
Keyword(s):  
Energy Density ◽  
High Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Reaction Pathways ◽  
Self Healing ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Redox Flow Batteries ◽  
Lithium Sulfur

Lithium-sulfur (Li-S) redox flow batteries (RFBs) have high energy density because of the high capacity of sulfur. To fully utilize its capacity, one key issue has to be overcome, i.e.,...

scholarly journals Designing for conjugate addition: an amine functionalised quinone anolyte for redox flow batteries

2021 ◽  
Author(s):  
Rajesh Bharat Jethwa ◽  
Evan Wenbo Zhao ◽  
Rachel N. Kerber ◽  
Erlendur Jónsson ◽  
Dominic S Wright ◽  
...  
Keyword(s):  
Energy Density ◽  
Storage Systems ◽  
Conjugate Addition ◽  
High Energy ◽  
Emerging Technology ◽  
High Energy Density ◽  
Organic Electrolytes ◽  
Redox Flow Batteries ◽  
Flow Batteries ◽  
Grid Level

Redox flow batteries (RFBs) are promising grid-level electrical storage systems. The key to this emerging technology is the development of cheap, highly soluble, and high energy-density inorganic and organic electrolytes....

Eutectic Electrolytes for High-Energy-Density Redox Flow Batteries

2018 ◽  
Vol 3 (12) ◽  
pp. 2875-2883 ◽  
Author(s):  
Changkun Zhang ◽  
Leyuan Zhang ◽  
Yu Ding ◽  
Xuelin Guo ◽  
Guihua Yu
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Redox Flow Batteries ◽  
Flow Batteries
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