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A Battery‐Like Self‐Charge Universal Module for Motional Energy Harvest
Author(s) -
Tan Puchuan,
Zheng Qiang,
Zou Yang,
Shi Bojing,
Jiang Dongjie,
Qu Xuecheng,
Ouyang Han,
Zhao Chaochao,
Cao Yu,
Fan Yubo,
Wang Zhong Lin,
Li Zhou
Publication year - 2019
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201901875
Subject(s) - battery (electricity) , energy harvesting , electronics , wearable technology , electrical engineering , wearable computer , power (physics) , energy (signal processing) , power electronics , computer science , power management , voltage , embedded system , engineering , physics , quantum mechanics
Wearable and portable electronics have brought great convenience. These battery‐powered commercial devices have a limited lifetime and require recharging, which makes more extensive applications challenging. Here, a battery‐like self‐charge universal module (SUM) is developed, which is able to efficiently convert mechanical energy into electrical energy and store it in one device. An integrated SUM consists of a power management unit and an energy harvesting unit. Compared to other mechanical energy harvesting devices, SUM is more ingenious, efficient and can be universally used as a battery. Under low frequency (5 Hz), a SUM can deliver an excellent normalized output power of 2 mW g −1 . After carrying several SUMs and jogging for 10 min, a commercial global positioning system module is powered and works continuously for 0.5 h. SUMs can be easily assembled into different packages for powering various commercial electronics, demonstrating the great application prospects of SUM as a sustainable battery‐like device for wearable and portable electronics.