Article
Engineering, Chemical
Liming Ding, Yahui Wang, Lihua Wang, Xutong Han
Summary: This study investigates different porous OPBI membranes prepared by different methods to achieve a high PS proton conductive membrane. The OPBI-MSA-VIPS membrane has significantly higher PS compared to other membranes and demonstrates stable cycling performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Physical
Yuyue Chen, Ping Xiong, Sisi Xiao, Yangzhi Zhu, Sangshan Peng, Gaohong He
Summary: This review summarizes the recent progress on PBI-based membranes for redox flow batteries (RFBs). It presents the proposed ion conductive mechanisms in acid- and alkali-doped PBI membranes from the perspective of intermolecular interactions, highlights recent efforts in improving PBI-based membranes for RFBs, and elaborates on the challenges and future perspectives in this research field.
ENERGY STORAGE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Lei Liu, Ziyang Guo, Jie Yang, Shuyan Wang, Zhenfeng He, Chao Wang
Summary: Polymer based on norbornene synthesized through ring-opening metathesis polymerization showed outstanding performance in preparing Aquivion-based hybrid membranes, with Aquivion/PAN-10% having the lowest resistance and excellent VO2+ permeability in this study.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Chemistry, Physical
Liming Ding, Lihua Wang
Summary: A new structure polybenzimidazole (TM-OPBI) with thiophene ring as side chain is synthesized to achieve high proton conductivity membranes. The introduction of thiophene ring accelerates proton transport and repels vanadium ions permeation, resulting in enhanced proton conductivity and vanadium resistance. The TM-OPBI-12 membrane, with 12% thiophene monomer content, exhibits comparable area resistance and better vanadium resistance than the Nafion 115 membrane, and the cell assembled with TM-OPBI-12 membrane shows higher coulombic efficiencies, larger discharge capacity, and longer self-discharge time than the cell with Nafion 115 membrane.
JOURNAL OF POWER SOURCES
(2023)
Article
Electrochemistry
Weiqin Tang, Yunfei Yang, Xinli Liu, Jianhao Dong, Huanhuan Li, Jingshuai Yang
Summary: The newly synthesized PBI-BPTMA membrane shows excellent performance in ion exchange capacity, hydrophilicity, and conductivity, especially demonstrating superior performance and stability in vanadium redox flow batteries.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Y. Lei, B. W. Zhang, B. F. Bai, X. Chen, T. S. Zhao
Summary: The study introduces a transient model of VRFB with a bipolar membrane, which improves the Poisson equation to describe the Donnan effect between the two layers for a full description of charge and ion transport. Numerical results demonstrate that bipolar membranes with thin anion exchange layers exhibit higher energy efficiency at large current densities.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Environmental
Jianfeng Xu, Shu Dong, Pan Li, Wenhao Li, Feng Tian, Junran Wang, Qingqing Cheng, Zhouying Yue, Hui Yang
Summary: The development of a novel ether-free amphoteric ionic exchange membrane with long alkyl chains and zwitterionic groups shows high stability, low swelling ratio, and excellent proton conductivity. Compared to Nafion212 membrane, the optimized TA15-SPBP membrane exhibits higher ion selectivity and better electrical efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Alexandros Pasadakis-Kavounis, Funda Arslan, Mads Radmer Almind, David Aili, Johan Hjelm
Summary: In this study, a series of polybenzimidazole-polyvinylchloride polymer blends decorated with different quaternary ammonium groups were investigated. The blend with 90% polybenzimidazole content and decorated with DABCO showed superior performance, including low polarization resistance, low swelling, and high stability in acidic media. This suggests that quaternary ammonium functionalized polybenzimidazole-polyvinylchloride systems are excellent candidates for modification or fabrication of thinner membranes to reduce membrane resistance without compromising vanadium blocking properties.
BATTERIES & SUPERCAPS
(2023)
Article
Electrochemistry
Dan Liang, Shuang Wang, Wenjia Ma, Di Wang, Geng Liu, Fengxiang Liu, Yinghe Cui, Xiaodong Wang, Zhipeng Yong, Zhe Wang
Summary: In this study, a proton selective membrane based on a metal-organic framework (MOF) and polybenzimidazole (PBI) was designed for vanadium redox flow battery (VRFB) applications. The membrane exhibited a high vanadium resistance rate and low vanadium transmittance, resulting in improved voltage efficiency and energy efficiency for VRFB.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Environmental
Muhammad Mara Ikhsan, Saleem Abbas, Xuan Huy Do, Seung-Young Choi, Kobra Azizi, Hans Aage Hjuler, Jong Hyun Jang, Heung Yong Ha, Dirk Henkensmeier
Summary: Research shows that pre-treatment with sulfuric acid can significantly improve the proton conductivity of PBI membranes, leading to excellent battery performance in all-vanadium redox flow batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Chien-Hong Lin, Ming-Yen Chien, Yi-Cih Chuang, Chao-Chi Lai, Yi-Ming Sun, Ting-Yu Liu
Summary: The addition of graphene oxide nanosheets significantly improves the mechanical properties of the PSF membrane, enhances the coulombic efficiency of the VRFB, and demonstrates long-term chemical stability.
Article
Electrochemistry
Yingying Zhao, Denghua Zhang, Lina Zhao, Shaoliang Wang, Jianguo Liu, Chuanwei Yan
Summary: By introducing PBI functional groups to reinforce Nafion membrane, Nafion/PBI membrane is prepared to improve ion selectivity and optimize battery performance.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Zhang Bengui, Zhirong Yang, Minghui Zhao, Qian Liu, Xueting Zhang, Yanshi Fu, Enlei Zhang, Kangjun Wang, Guosheng Wang, Zhigang Zhang, Shouhai Zhang
Summary: The development of high-power-density Vanadium flow batteries (VFBs) faces the challenge of lacking high-performance membranes. In this study, a novel PyPEF membrane was introduced for VFBs, which exhibited low swelling, high selectivity, high conductivity, and robust mechanical strength. The VFB with PyPEF-90 membrane delivered excellent battery performance and maintained stable performance even under high current density.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Chemical
Mengting Di, Yanxue Xiu, Ziwei Dong, Lei Hu, Li Gao, Yan Dai, Xiaoming Yan, Ning Zhang, Yu Pan, Xiaobin Jiang, Gaohong He
Summary: A novel double-layer composite membrane composed of MoS2-rich and polymer-rich layers is prepared for vanadium redox flow batteries, providing both protection and high proton conductivity through slow solvent evaporation. The membrane shows improved performance, with reduced area resistance and enhanced coulombic efficiencies and energy efficiencies, making it promising for VRBs.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Analytical
Fan Yang, Yu Dai, Yu Zhang, Wei Wei, Shicheng Xu, Ronghuan He
Summary: A novel blended polymer membrane is prepared for vanadium redox flow batteries (VRFBs) as the diaphragm, which possesses superior affinity to sulfuric acid due to acid-base interactions. The membrane exhibits high oxidation stability and low vanadium permeability. The VRFB assembled with this membrane shows energy efficiency above 82% at a current density range of 20 to 120 mA cm-2 and stable performance after 50 charge-discharge cycles.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Lin Qiao, Huamin Zhang, Mingrun Li, Zhizhang Yuan, Yuyue Zhao, Xianfeng Li
JOURNAL OF MATERIALS CHEMISTRY A
(2017)
Article
Chemistry, Physical
Lin Qiao, Huamin Zhang, Wenjing Lu, Chuanhai Xiao, Qiang Fu, Xianfeng Li, Ivo F. J. Vankelecom
Article
Chemistry, Multidisciplinary
Lin Qiao, Qing Dai, Huamin Zhang, Xianfeng Li
Summary: This study proposes a simple method to fabricate membrane materials with macro-scale Turing patterns by using macromolecules as reactants to generate chemical Turing patterns, making it easier to freeze and construct Turing-shaped materials. The formation mechanism and influence factors of Turing patterns are discussed in detail through experimental investigation and numerical simulation. Turing-shaped membranes are successfully applied to electrochemical energy storage and exhibit good performance due to the rich surface area.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Physical
Lin Qiao, Congxin Xie, Mingjun Nan, Huamin Zhang, Xiangkun Ma, Xianfeng Li
Summary: The titanium-manganese single flow battery (TMSFB) is designed and fabricated for the first time, demonstrating high stability in preventing pipeline blockage from MnO2 particles. With a decreasing disproportionation reaction rate, nearly two electron capacity utilization is achieved from MnO2, resulting in over 99.0% coulombic efficiency (CE) and stable operation over 1000 cycles without capacity decay. TMSFBs show remarkable potential for large scale energy storage with their low cost, high efficiency, and long cycle life.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)