Remarkable improvement of cyclic stability in Li-O_2 batteries using ruthenocene as a redox mediator

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成果类型：

期刊论文

作者：

Zhu, Cuicui;Wang, Yiping;Shuai, Ling;Tang, Yizhao;Qiu, Ming*;...

通讯作者：

He, Qinggang;Qiu, Ming

作者机构：

[Tang, Yizhao; Dou, Mei; Chen, Hengquan; He, Qinggang; Nan, Suifei; Zhu, Cuicui] Zhejiang Univ, Coll Chem & Biol Engn, Hangzhou 310027, Peoples R China.

[Tang, Yizhao; Dou, Mei; Chen, Hengquan; He, Qinggang; Nan, Suifei; Zhu, Cuicui] Inst Zhejiang Univ Quzhou, Quzhou 324000, Peoples R China.

[Wang, Yiping; Shuai, Ling; Qiu, Ming] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.

[Xie, Jian] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China.

[Liu, Jia] Northeast Normal Univ, Fac Chem, Nat & Local United Engn Lab Power Batteries, Changchun 130024, Peoples R China.

通讯机构：

[He, Qinggang] Z

[Qiu, Ming] C

Zhejiang Univ, Coll Chem & Biol Engn, Hangzhou 310027, Peoples R China.

Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.

语种：

英文

关键词：

Cycling life;Li2O2;Li–O2 battery;Redox mediator;Ruthenocene

期刊：

中国化学快报：英文版

ISSN：

1001-8417

年：

2020

卷：

期：

页码：

1997-2002

DOI：

10.1016/j.cclet.2019.11.046

基金类别：

(Nos.U1732111 and 21676241):Q.He acknowledges the financial support from the National Natural Science Foundation of China (No.2018CFB531):"The Recruitment Program of Global Youth Experts" from the Chinese government,and the "Hundred Talents Program" of Zhejiang University.Hubei Natural Science Foundation of China (No.CCNU18TS045):Self-determined Research Funds of CCNU from Colleges' Basic Research and Operation of MOE :are gratefully acknowledged

机构署名：

本校为通讯机构

院系归属：

物理科学与技术学院

摘要：

Nonaqueous Li-O-2 batteries attract attention for their theoretical specific energy density. However, due to the difficulty of decomposition of Li2O2, Li-O-2 batteries have high charge overpotential and poor cycling life. So all kinds of catalysts have been studied on the cathode. Compared to heterogeneous solid catalysts, soluble catalysts achieve faster and more effective transport of electrons by reversible redox pairs. Here, we first report ruthenocene (Ruc) as a mobile redox mediator in a Li-O-2 battery. 0.01 mol/L Ruc in the electrolyte effectively reduces the charging voltage by 610 mV....

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Remarkable improvement of cyclic stability in Li-O_2 batteries using ruthenocene as a redox mediator

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