A Universal Organic Cathode for Ultrafast Lithium and Multivalent Metal Batteries

被引：209

作者：

Fan, Xiulin ^{[1
]}

Wang, Fei ^{[2
]}

Ji, Xiao ^{[1
]}

Wang, Ruixing ^{[3
]}

Gao, Tao ^{[1
]}

Hou, Singyuk ^{[1
]}

Chen, Ji ^{[1
]}

Deng, Tao ^{[1
]}

Li, Xiaogang ^{[1
]}

Chen, Long ^{[1
]}

Luo, Chao ^{[1
]}

Wang, Luning ^{[3
]}

Wang, Chunsheng ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA

[2] US Army Res Lab, Power & Energy Div, Sensor & Electron Devices Directorate, Electrochem Branch, Adelphi, MD 20783 USA

[3] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 24期

基金：

美国国家科学基金会;

关键词：

aluminum; lithium ion batteries; magnesium; multivalent batteries; organic cathodes; ENERGY-STORAGE; ION; ALUMINUM; MAGNESIUM; CHEMISTRY; LIQUID;

D O I：

10.1002/anie.201803703

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Low-cost multivalent battery chemistries (Mg2+, Al3+) have been extensively investigated for large-scale energy storage applications. However, their commercialization is plagued by the poor power density and cycle life of cathodes. A universal polyimides@CNT (PI@CNT) cathode is now presented that can reversibly store various cations with different valences (Li+, Mg2+, Al3+) at an extremely fast rate. The ion-coordination charge storage mechanism of PI@CNT is systemically investigated. Full cells using PI@CNT cathodes and corresponding metal anodes exhibit long cycle life (>10000 cycles), fast kinetics (>20C), and wide operating temperature range (-40 to 50 degrees C), making the low-cost industrial polyimides universal cathodes for different multivalent metal batteries. The stable ion-coordinated mechanism opens a new foundation for the development of high-energy and high-power multivalent batteries.

引用

页码：7146 / 7150

页数：5

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