The lightest organic radical cation for charge storage in redox flow batteries

被引：68

作者：

Huang, Jinhua ^{[1
,2
]}

Pan, Baofei ^{[1
,2
]}

Duan, Wentao ^{[1
,3
]}

Wei, Xiaoliang ^{[1
,3
]}

Assary, Rajeev S. ^{[1
,4
]}

Su, Liang ^{[1
,5
]}

Brushett, Fikile R. ^{[1
,5
]}

Cheng, Lei ^{[1
,4
]}

Liao, Chen ^{[1
,2
]}

Ferrandon, Magali S. ^{[1
,2
]}

Wang, Wei ^{[1
,3
]}

Zhang, Zhengcheng ^{[1
,2
]}

Burrell, Anthony K. ^{[1
,2
]}

Curtiss, Larry A. ^{[1
,4
]}

Shkrob, Ilya A. ^{[1
,2
]}

Moore, Jeffrey S. ^{[1
,6
,7
]}

Zhang, Lu ^{[1
,2
]}

机构：

[1] Argonne Natl Lab, Joint Ctr Energy Storage Res, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA

[3] Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA

[4] Argonne Natl Lab, Mat Sci Div, Argonne, IL 60439 USA

[5] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[6] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[7] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

关键词：

METHOXYLATED BENZENES; OVERCHARGE PROTECTION; ENERGY-STORAGE; ELECTROLYTES; PROGRESS; SHUTTLE; DESIGN; OH;

D O I：

10.1038/srep32102

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In advanced electrical grids of the future, electrochemically rechargeable fluids of high energy density will capture the power generated from intermittent sources like solar and wind. To meet this outstanding technological demand there is a need to understand the fundamental limits and interplay of electrochemical potential, stability, and solubility in low-weight redox-active molecules. By generating a combinatorial set of 1,4-dimethoxybenzene derivatives with different arrangements of substituents, we discovered a minimalistic structure that combines exceptional long-term stability in its oxidized form and a record-breaking intrinsic capacity of 161 mAh/g. The nonaqueous redox flow battery has been demonstrated that uses this molecule as a catholyte material and operated stably for 100 charge/discharge cycles. The observed stability trends are rationalized by mechanistic considerations of the reaction pathways.

引用

页数：9

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