Dead-zone-compensated design as general method of flow field optimization for redox flow batteries

Pan，Lyuming1,2; Sun，Jing3; Qi，Honghao1,2; Han，Meisheng1,2; Dai，Qiuxia2,4; Xu，Junhui2,4; Yao，Shengxin2,4; Li，Quanlong5; Wei，Lei1,2; Zhao，Tianshou1,2

2023-09-12

10.1073/pnas.2305572120

Proceedings of the National Academy of Sciences of the United States of America   Impact Factor & Quartile

1091-6490

One essential element of redox flow batteries (RFBs) is the flow field. Certain dead zones that cause local overpotentials and side effects are present in all conventional designs. To lessen the detrimental effects, a dead-zone-compensated design of flow field optimization is proposed. The proposed architecture allows for the detection of dead zones and their compensation on existing flow fields. Higher reactant concentrations and uniformity factors can be revealed in the 3D multiphysical simulation. The experiments also demonstrate that at an energy efficiency (EE) of 80%, the maximum current density of the novel flow field is 205 mA cm-2, which is much higher than the values for the previous ones (165 mA cm-2) and typical serpentine flow field (153 mA cm-2). Extensions of the design have successfully increased system EE (2.7 to 4.3%) for a variety of flow patterns. As a result, the proposed design is demonstrated to be a general method to support the functionality and application of RFBs.

dead-zone-compensated design electrolyte utilization energy efficiency energy storage redox flow battery

English

NI Journal Papers

First

BIOLOGY & BIOCHEMISTRY;CLINICAL MEDICINE;MULTIDISCIPLINARY;PLANT & ANIMAL SCIENCE;ENVIRONMENT/ECOLOGY;SOCIAL SCIENCES, GENERAL;MICROBIOLOGY;ECONOMICS BUSINESS;IMMUNOLOGY;MATERIALS SCIENCE;MATHEMATICS;SPACE SCIENCE;MOLECULAR BIOLOGY & GENETICS;PHARMACOLOGY & TOXICOLOGY;CHEMISTRY;PSYCHIATRY/PSYCHOLOGY;NEUROSCIENCE & BEHAVIOR;PHYSICS;GEOSCIENCES;AGRICULTURAL SCIENCES;ENGINEERING

2-s2.0-85169760114

Scopus

1.Department of Mechanical and Energy Engineering,Shenzhen Key Laboratory of Advanced Energy Storage,Southern University of Science and Technology,Shenzhen,518055,China
2.Joint Research Center on Energy Storage Technology in Salt Caverns,Shenzhen,518055,China
3.Department of Mechanical and Aerospace Engineering,Hong Kong University of Science and Technology,Hong Kong,999077,China
4.Jiangsu Engineering Research Center for Comprehensive Utilization of Well and Rocks Salt,Chinasalt Jintan Co.,Ltd.,Changzhou,213200,China
5.Dalian Rongke Power Co.,Ltd.,Dalian,116025,China

Pan，Lyuming,Sun，Jing,Qi，Honghao,et al. Dead-zone-compensated design as general method of flow field optimization for redox flow batteries[J]. Proceedings of the National Academy of Sciences of the United States of America,2023,120(37).

Pan，Lyuming.,Sun，Jing.,Qi，Honghao.,Han，Meisheng.,Dai，Qiuxia.,...&Zhao，Tianshou.(2023).Dead-zone-compensated design as general method of flow field optimization for redox flow batteries.Proceedings of the National Academy of Sciences of the United States of America,120(37).

Pan，Lyuming,et al."Dead-zone-compensated design as general method of flow field optimization for redox flow batteries".Proceedings of the National Academy of Sciences of the United States of America 120.37(2023).