Harvesting electrical energy from carbon nanotube yarn twist

被引：369

作者：

Kim, Shi Hyeong ^{[1
]}

Haines, Carter S. ^{[2
]}

Li, Na ^{[2
]}

Kim, Keon Jung ^{[1
]}

Mun, Tae Jin ^{[1
]}

Choi, Changsoon ^{[1
]}

Di, Jiangtao ^{[2
]}

Oh, Young Jun ^{[3
]}

Oviedo, Juan Pablo ^{[3
]}

Bykova, Julia ^{[4
]}

Fang, Shaoli ^{[2
]}

Jiang, Nan ^{[5
]}

Liu, Zunfeng ^{[5
,6
]}

Wang, Run ^{[5
,6
]}

Kumar, Prashant ^{[7
]}

Qiao, Rui ^{[7
]}

Priya, Shashank ^{[7
]}

Cho, Kyeongjae ^{[3
]}

Kim, Moon ^{[3
]}

Lucas, Matthew Steven ^{[8
]}

Drummy, Lawrence F. ^{[8
]}

Maruyama, Benji ^{[8
]}

Lee, Dong Youn ^{[1
]}

Lepro, Xavier ^{[2
]}

Gao, Enlai ^{[2
]}

Albarq, Dawood ^{[2
]}

Ovalle-Robles, Raquel ^{[4
]}

Kim, Seon Jeong ^{[1
]}

Baughman, Ray H. ^{[2
]}

机构：

[1] Hanyang Univ, Dept Biomed Engn, Ctr Self Powered Actuat, Seoul 04763, South Korea

[2] Univ Texas Dallas, Alan G MacDiarmid NanoTech Inst, Richardson, TX 75080 USA

[3] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA

[4] Lintec Amer, Nanosci & Technol Ctr, Richardson, TX 75081 USA

[5] Jiangnan Graphene Res Inst, Changzhou 213149, Peoples R China

[6] Nankai Univ, Coll Pharm, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China

[7] Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA

[8] Air Force Res Lab, Mat & Mfg Directorate, Dayton, OH 45433 USA

来源：

SCIENCE | 2017年 / 357卷 / 6353期

基金：

新加坡国家研究基金会;

关键词：

DIFFERENTIAL CAPACITANCE; MECHANICAL ENERGY; SYSTEM; DRIVEN;

D O I：

10.1126/science.aam8771

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：

Mechanical energy harvesters are needed for diverse applications, including self-powered wireless sensors, structural and human health monitoring systems, and the extraction of energy from ocean waves. We report carbon nanotube yarn harvesters that electrochemically convert tensile or torsional mechanical energy into electrical energy without requiring an external bias voltage. Stretching coiled yarns generated 250 watts per kilogram of peak electrical power when cycled up to 30 hertz, as well as up to 41.2 joules per kilogram of electrical energy per mechanical cycle, when normalized to harvester yarn weight. These energy harvesters were used in the ocean to harvest wave energy, combined with thermally driven artificial muscles to convert temperature fluctuations to electrical energy, sewn into textiles for use as self-powered respiration sensors, and used to power a light-emitting diode and to charge a storage capacitor.

引用

页码：773 / 778

页数：6

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