Flexible perovskite solar cell-driven photo-rechargeable lithium-ion capacitor for self-powered wearable strain sensors

被引：223

作者：

Li, Chao ^{[1
]}

Cong, Shan ^{[1
]}

Tian, Zhengnan ^{[1
]}

Song, Yingze ^{[1
]}

Yu, Lianghao ^{[1
]}

Lu, Chen ^{[1
]}

Shao, Yuanlong ^{[2
]}

Li, Jie ^{[3
]}

Zou, Guifu ^{[1
]}

Rummeli, Mark H. ^{[1
]}

Dou, Shixue ^{[4
]}

Sun, Jingyu ^{[1
,5
]}

Liu, Zhongfan ^{[1
,6
]}

机构：

[1] Soochow Univ, Coll Energy, Soochow Inst Energy & Mat Innovat SIEMIS, Key Lab Adv Carbon Mat & Wearable Energy Technol, Suzhou 215006, Jiangsu, Peoples R China

[2] Univ Cambridge, Cambridge Graphene Ctr, Cambridge CB3 0FA, England

[3] Univ Munster, MEET Battery Res Ctr, Inst Phys Chem, Corrensstr 46, D-48149 Munster, Germany

[4] Univ Wollongong, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

[5] Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm, Minist Educ, Xinxiang 453007, Henan, Peoples R China

[6] Peking Univ, Ctr Nanochem CNC, Beijing Sci & Engn Ctr Nanocarbons, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

NANO ENERGY | 2019年 / 60卷

基金：

中国国家自然科学基金;

关键词：

Flexible perovskite solar cell; Lithium-ion capacitor; Self-powered strain sensor; Energy harvesting and storage; Wearable electronics; ENERGY; SUPERCAPACITOR; ARRAYS; ELECTRONICS; DEPOSITION; EFFICIENT; STRATEGY; DEVICES; ANODE; PACK;

D O I：

10.1016/j.nanoen.2019.03.061

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Next-generation wearable electronics is expected to be self-powered by conformable energy storage devices that can provide energy output whenever needed. The emerging energy harvesting and storage integrated system in a flexible assembly, in this respect, has offered a promising solution. Nevertheless, daunting challenges pertaining to the insufficient energy density, limited overall efficiency and low output voltage of the prevailing integrated power sources still exist. Herein, we report a flexible perovskite solar cell (PSC)-driven photo-rechargeable lithium-ion capacitor (LIC) that hybridizes energy harvesting and storage for self-powering wearable strain sensors. Such flexible PSC-LIC module manages to deliver an overall efficiency of 8.41% and a high output voltage of 3 V at a discharge current density of 0.1 A g (-1). It could still harvest a remarkable overall efficiency exceeding 6% even at the high current density of 1 A g(-1), outperforming state-of-the-art photo-charging power sources. Accordingly, thus-derived, self-powered strain sensor readily manifests precise and continuous data recording of physiological signals without any external power connections, thereby realizing the synergy of energy harvesting, storage, and utilization within one smart system. This multi-field-coupled, function-integrated platform is anticipated to offer significant benefits toward practical self-powered wearable electronics.

引用

页码：247 / 256

页数：10

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