Radial-arrayed rotary electrification for high performance triboelectric generator

被引：750

作者：

Zhu, Guang ^{[1
,2
]}

Chen, Jun ^{[2
]}

Zhang, Tiejun ^{[2
]}

Jing, Qingshen ^{[2
]}

Wang, Zhong Lin ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

NATURE COMMUNICATIONS | 2014年 / 5卷

关键词：

BIOMECHANICAL ENERGY; POWER-GENERATION; NANOGENERATOR; ELECTRICITY; ADHESION; WALKING; DRIVEN;

D O I：

10.1038/ncomms4426

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：

Harvesting mechanical energy is an important route in obtaining cost-effective, clean and sustainable electric energy. Here we report a two-dimensional planar-structured triboelectric generator on the basis of contact electrification. The radial arrays of micro-sized sectors on the contact surfaces enable a high output power of 1.5W (area power density of 19mWcm(-2)) at an efficiency of 24%. The triboelectric generator can effectively harness various ambient motions, including light wind, tap water flow and normal body movement. Through a power management circuit, a triboelectric-generator-based power-supplying system can provide a constant direct-current source for sustainably driving and charging commercial electronics, immediately demonstrating the feasibility of the triboelectric generator as a practical power source. Given exceptional power density, extremely low cost and unique applicability resulting from distinctive mechanism and structure, the triboelectric generator can be applied not only to self-powered electronics but also possibly to power generation at a large scale.

引用

页数：9

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