Hydrogen-bond-rich composite membrane with improved conductivity and selectivity for flow battery

Fang, Maolin; Qiao, Lin; Wu, Min; Ye, Yujiao; Yang, Mingjun; Liu, Shumin; Zhang, Huamin; Ma, Xiangkun

doi:10.1016/j.jpowsour.2023.232815

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…Fang et al [59] synthesized a new hydrogen bond-rich membrane (SP-TiON) suitable for iron-chromium redox flow batteries by adding titanium oxynitride (TiON) to a sulfonated poly(ether ether ketone) (SPEEK) matrix. The TiON generated -OH and -NH2 functional groups.…”

Section: Latest Ion Exchange Membrane Research Progressmentioning

confidence: 99%

Redox flow battery technology development from the perspective of patent applications: A review

Wang,

Mu,

Yang

et al. 2023

CEST

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With the continuous increase in global energy consumption, the development and utilization of renewable energy become imperative. However, the intermittency and fluctuation of wind and solar power generation prevent direct grid integration, resulting in energy waste. As a large-scale electrochemical energy storage technology, redox flow batteries (RFBs) can effectively store renewable energy and smooth the power output. This paper summarizes the development history of RFBs technology in China by analyzing relevant patent application data, elaborates on the working principles, advantages and disadvantages of various RFBs, and their latest research progress. It analyzes the technical challenges in current RFBs research and presents the application prospects of RFBs commercialization. The results show that although RFBs technology has made significant progress in China, it still faces issues like high battery cost and limited cycle life. To realize the efficient utilization of renewable energy and green low-carbon development, RFBs technology needs continuous optimization and upgrade. This paper can provide references for the development of RFBs technology.

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Section: Latest Ion Exchange Membrane Research Progressmentioning

confidence: 99%

Redox flow battery technology development from the perspective of patent applications: A review

Wang,

Mu,

Yang

et al. 2023

CEST

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“…[9][10][11] The proton conductivity of the SPEEK tends to be positively correlated with its degree of sulfonation. However, higher sulfonation is often accompanied by lower dimensional stability, [12][13][14] so researchers have proposed compounding SPEEK with other materials.…”

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confidence: 99%

Enhanced proton conductivity of SPEEK membranes by constructing hydrogen bond network through doping ionic liquid and graphene oxide

Lv,

Qu,

Sun

et al. 2023

Polymer Composites

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So as to improve proton conductivity at medium temperatures while reducing the loss of ionic liquids (ILs), this article fabricated a series of hybrid membranes with sulfonated poly (ether ether ketone) (SPEEK) as their base material, 1‐allyl‐3‐methylimidazolium chloride ([AMIM][Cl]) as their primary proton conductor, and graphene oxide (GO) as their filler. The characterization results showed that the –SO3H groups of SPEEK formed acid–base pairs with the imidazole ring of [AMIM][Cl] at the interface where electrostatic attraction inhibited the main‐chain migration of the SPEEK. At the same time, the large hydrogen bond network formed between [AMIM][Cl], GO and SPEEK provided more jump sites for proton transfer. Proton conduction of the prepared membranes was enhanced by way of low potential energy barriers. At 120°C, SPEEK/IL/GO‐2% exhibited a proton conductivity of 21.35 mS/cm, and the IL loss rate was 20.17%. The characterization results demonstrated that the prepared SPEEK/IL/GO composite membranes had excellent physicochemical properties, dimensional stability, high proton conductivity, and low IL loss, which were expected to be used in practical conditions at medium temperature.Highlights Large hydrogen bonding network provides additional proton hopping sites. Physical cross‐linking limits the leaching of ionic liquid. SPEEK/IL/GO‐2% membrane achieves a conductivity of 21.35 mS/cm at 120°C.

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Selective mass transport mediated by two-dimensional confined water: A comprehensive review

Jin,

Chen,

Liu

et al. 2024

FlatChem

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Hydrogen-bond-rich composite membrane with improved conductivity and selectivity for flow battery

Cited by 6 publications

References 31 publications

Redox flow battery technology development from the perspective of patent applications: A review

Redox flow battery technology development from the perspective of patent applications: A review

Enhanced proton conductivity of SPEEK membranes by constructing hydrogen bond network through doping ionic liquid and graphene oxide

Selective mass transport mediated by two-dimensional confined water: A comprehensive review

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