Nano-Sponge in Concomitant Swelling Membrane for Redox Flow Batteries with High Operational Stability

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成果类型：

期刊论文

作者：

Xu, Jian;He, Murong;Jin, Hongrun;Xie, Xiaoyin;Ye, Chen;...

通讯作者：

Ding, M;Cheng, YH;Chao, DL

作者机构：

[He, Murong; Xu, Jian; Jia, Chuankun; Lou, Xuechun; Ding, Mei; Lu, Bo] Changsha Univ Sci & Technol, Inst Energy Storage Technol, Coll Energy & Power Engn, Changsha 410114, Peoples R China.

[Cheng, Yuanhang] Nanjing Univ Sci & Technol, Sch New Energy, Jiangyin 214400, Peoples R China.

[Chao, Dongliang; Jin, Hongrun; Zhang, Junwei] Fudan Univ, Coll Smart Mat & Future Energy, Aqueous Battery Ctr, Lab Adv Mat, Shanghai 200433, Peoples R China.

[Xie, Xiaoyin] Hubei Polytech Univ, Sch Chem & Chem Engn, Huangshi 435003, Peoples R China.

[Ye, Chen] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China.

通讯机构：

[Chao, DL ] F

[Ding, M ] C

[Cheng, YH ] N

Changsha Univ Sci & Technol, Inst Energy Storage Technol, Coll Energy & Power Engn, Changsha 410114, Peoples R China.

Nanjing Univ Sci & Technol, Sch New Energy, Jiangyin 214400, Peoples R China.

语种：

英文

关键词：

ion-exchange membrane;membrane swelling management;ion sieving;operational stability;redox flow battery

期刊：

Advanced Energy Materials

ISSN：

1614-6832

年：

2025

页码：

e02374

DOI：

10.1002/aenm.202502374

基金类别：

National Key Research and Development Program of China [2022YFB2405100, 2024YFE0101100]; National Natural Science Foundation of China [22209015, U24A2060, 22279023]; Key Research and Development Program of Hunan Province [2023SK2053]; The 100 Talented Team of Hunan Province Xiang [91]

机构署名：

本校为第一且通讯机构

院系归属：

能源与动力工程学院

摘要：

Swelling-induced imbalance between ion transport and sieving severely limits the long-term stability of ion-exchange membranes (IEMs) in redox flow batteries (RFBs). Effectively managing membrane swelling during RFB operation remains a significant challenge. Here, a concomitant swelling membrane (CSM) is introduced that fundamentally redefines swelling management by incorporating a 2D nano-sponge as a co-expanding medium. Through synergistic expansion with bentonite, the sulfonated poly(ether ether ketone) (SPEEK) matrix achieves dynamic swelling control, enabling enhanced ion sieving without ...

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Nano-Sponge in Concomitant Swelling Membrane for Redox Flow Batteries with High Operational Stability

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