A Choline-Based Antifreezing Complexing Agent with Selective Compatibility for Zn-Br2 Flow Batteries

被引:20
作者
Zhao, Ming [1 ,2 ]
Cheng, Tao [1 ,2 ]
Li, Tianyu [1 ]
Bi, Ran [3 ]
Yin, Yanbin [1 ]
Li, Xianfeng [1 ]
机构
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian Natl Lab Clean Energy, Zhongshan Rd 457, Dalian 116023, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] China Three Gorges Corp, Sci & Technol Res Inst, Comprehens Energy Res Ctr, Beijing 100038, Peoples R China
关键词
antifreezing; choline; complexing agent; zinc-bromine flow battery; 2-DIMENSIONAL NMR; ZINC; ELECTROLYTE; CAPACITY; LECITHIN; PHASE;
D O I
10.1002/smll.202307627
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The high freezing point of polybromides, charging products, is a significant obstacle to the rapid development of zinc-bromine flow batteries (Zn-Br-2 FBs). Here, a choline-based complexing agent (CCA) is constructed to liquefy the polybromides at low temperatures. Depending on quaternary ammonium group, choline can effectively complex with polybromide anions and form dense oil-phase that has excellent antifreezing property. Benefiting from indispensable strong ion-ion interaction, the highly selectively compatible CCA, consisting of choline and N-methyl-N-ethyl-morpholinium salts (CCA-M), can be achieved to further enhance bromine fixing ability. Interestingly, the formed polybromides with CCA-M are able to keep liquid even at -40 degrees C. The CCA-M endows Zn-Br-2 FBs at 40 mA cm(-2) with unprecedented long cycle life (over 150 cycles) and high Coulombic efficiency (CE, average approximate to 98.8%) at -20 degrees C, but also at room temperature (over 1200 cycles, average CE: approximate to 94.7%). The CCA shows a promising prospect of application and should be extended to other antifreezing bromine-based energy storage systems.
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页数:10
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共 55 条
[2]   Raman spectroscopic study of the bromine storing complex phase in a zinc-flow battery [J].
Bauer, G ;
Drobits, J ;
Fabjan, C ;
Mikosch, H ;
Schuster, P .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1997, 427 (1-2) :123-128
[3]   All -climate aqueous supercapacitor enabled by a deep eutectic solvent electrolyte based on salt hydrate [J].
Bu, Xudong ;
Zhang, Yurong ;
Sun, Yinglun ;
Su, Lijun ;
Meng, Jianing ;
Lu, Xionggang ;
Yan, Xingbin .
JOURNAL OF ENERGY CHEMISTRY, 2020, 49 :198-204
[4]   SELECTION OF QUATERNARY AMMONIUM BROMIDES FOR USE IN ZINC BROMINE CELLS [J].
CATHRO, KJ ;
CEDZYNSKA, K ;
CONSTABLE, DC ;
HOOBIN, PM .
JOURNAL OF POWER SOURCES, 1986, 18 (04) :349-370
[5]   PROPERTIES OF MODIFIED ELECTROLYTE FOR ZINC-BROMINE CELLS [J].
CEDZYNSKA, K .
ELECTROCHIMICA ACTA, 1995, 40 (08) :971-976
[6]   An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices [J].
Chang, Nana ;
Li, Tianyu ;
Li, Rui ;
Wang, Shengnan ;
Yin, Yanbin ;
Zhang, Huamin ;
Li, Xianfeng .
ENERGY & ENVIRONMENTAL SCIENCE, 2020, 13 (10) :3527-3535
[7]   Evidences for Inclusion and Encapsulation of an Ionic liquid with β-CD and 18-C-6 in Aqueous Environments by Physicochemical Investigation [J].
Das, Koyeli ;
Datta, Biswajit ;
Rajbanshi, Biplab ;
Roy, Mahendra Nath .
JOURNAL OF PHYSICAL CHEMISTRY B, 2018, 122 (05) :1679-1694
[8]   Carbon Nanotubes for Photoconversion and Electrical Energy Storage [J].
Dillon, A. C. .
CHEMICAL REVIEWS, 2010, 110 (11) :6856-6872
[9]   BROMINE COMPLEXATION IN ZINC-BROMINE CIRCULATING BATTERIES [J].
EUSTACE, DJ .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (03) :528-532
[10]   Electronic Structure Regulation of Layered Vanadium Oxide via Interlayer Doping Strategy toward Superior High-Rate and Low-Temperature Zinc-Ion Batteries [J].
Geng, Hongbo ;
Cheng, Min ;
Wang, Bo ;
Yang, Yang ;
Zhang, Yufei ;
Li, Cheng Chao .
ADVANCED FUNCTIONAL MATERIALS, 2020, 30 (06)