首页|Highly stable side-chain-type cardo poly(aryl ether ketone)s membranes for vanadium flow battery

Highly stable side-chain-type cardo poly(aryl ether ketone)s membranes for vanadium flow battery

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Vanadium flow batteries(VFBs)have drawn considerable attention as an emerging technology for large-scale energy storage systems(ESSs).One of the pivotal challenges is the availability of eligible ion ex-change membranes(ICMs)that provide high ion selectivity,proton conductivity,and stability under rigorous condition.Herein,a'side-chain-type'strategy has been employed to fabricate highly stable phenolphthalein-based cardo poly(arylene ether ketone)s(PAEKs)membrane with low area resistance(0.058 Ω cm2),in which flexible alkyl spacers effectively alleviated inductive withdrawing effect from terminal ion exchange groups thus enabling a stable backbone.The assembled VFBs based on PAEKs bear-ing pendent alkyl chain terminated with quaternary ammonium(Q-PPhEK)demonstrated an energy effi-ciency above 80％over 700 cycles at 160mA/cm2.Such a remarkable results revealed that the side-chain-type strategy contributed to enhancing the ICMs stability in strong oxidizing environment,meanwhile,more interesting backbones would be woken with this design engaging in stable ICMs for VFBs.

Vanadium flow batteryEnergy storage technologyIon exchange membraneIon transport mechanismPoly(arylene ether ketone)s(PAEKs)

Ziming Zhao、Qing Dai、Sihan Huang、Wenjing Lu、Yaohan Chen、Jifu Zheng、Suobo Zhang、Shenghai Li、Xianfeng Li

展开 >

Key Laboratory of Polymer Ecomaterials,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China

School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,China

Division of Energy Storage,Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China

国家自然科学基金国家自然科学基金国家自然科学基金CAS Strategic Leading Science and Technology Program(A)Dalian High Level Talent Innovation Support ProgramDevelopment of Scientic and Technological Project of the Jilin ProvinceInternational Partnership Program of Chinese Academy of Sciences

22075276U19A2016U22B6012XDA210700002020RD0520210101126JC121421KYSB20210028

2024

10.1016/j.cclet.2023.109231

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
  • 46