Elastic and Wearable Wire-Shaped Lithium-Ion Battery with High Electrochemical Performance

被引：331

作者：

Ren, Jing ^{[1
,2
]}

Zhang, Ye ^{[1
,2
]}

Bai, Wenyu ^{[1
,2
]}

Chen, Xuli ^{[1
,2
]}

Zhang, Zhitao ^{[1
,2
]}

Fang, Xin ^{[1
,2
]}

Weng, Wei ^{[1
,2
]}

Wang, Yonggang ^{[3
,4
]}

Peng, Huisheng ^{[1
,2
]}

机构：

[1] Fudan Univ, State Key Lab Mol Engn Polymers, Dept Macromol Sci, Shanghai 200438, Peoples R China

[2] Fudan Univ, Adv Mat Lab, Shanghai 200438, Peoples R China

[3] Fudan Univ, Inst New Energy, Dept Chem, Shanghai 200438, Peoples R China

[4] Fudan Univ, Inst New Energy, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200438, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 30期

关键词：

carbon-based materials; electrochemistry; lithium-ion batteries; nanotubes; CATHODE MATERIAL; ENERGY-STORAGE; ANODE MATERIAL; CARBON; SUPERCAPACITORS; FIBER; SAFE; ELECTRODES; NANOWIRES; CAPACITOR;

D O I：

10.1002/anie.201402388

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A stretchable wire-shaped lithium-ion battery is produced from two aligned multi-walled carbon nanotube/lithium oxide composite yarns as the anode and cathode without extra current collectors and binders. The two composite yarns can be well paired to obtain a safe battery with superior electrochemical properties, such as energy densities of 27 Whkg(-1) or 17.7 mWhcm(-3) and power densities of 880 Wkg(-1) or 0.56 Wcm(-3), which are an order of magnitude higher than the densities reported for lithium thin-film batteries. These wire-shaped batteries are flexible and light, and 97% of their capacity was maintained after 1000 bending cycles. They are also very elastic as they are based on a modified spring structure, and 84% of the capacity was maintained after stretching for 200 cycles at a strain of 100%. Furthermore, these novel wire-shaped batteries have been woven into lightweight, flexible, and stretchable battery textiles, which reveals possible large-scale applications.

引用

页码：7864 / 7869

页数：6

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