A Long-Life Battery-Type Electrochromic Window with Remarkable Energy Storage Ability

被引：70

作者：

Wang, Bian ^{[1
,2
]}

Cui, Mangwei ^{[3
]}

Gao, Yanfeng ^{[4
]}

Jiang, Fuyi ^{[1
]}

Du, Wei ^{[1
]}

Gao, Feng ^{[2
]}

Kang, Litao ^{[1
]}

Zhi, Chunyi ^{[3
,5
]}

Luo, Hongjie ^{[4
]}

机构：

[1] Yantai Univ, Coll Environm & Mat Engn, Yantai 264005, Peoples R China

[2] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

[3] Songshan Lake Mat Lab, Div Flexible Zinc Battery, Dongguan 523808, Guangdong, Peoples R China

[4] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

[5] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China

来源：

SOLAR RRL | 2020年 / 4卷 / 03期

基金：

中国国家自然科学基金;

关键词：

electrochromic; Prussian blue; smart windows; Zn anodes; Zn-ion batteries; TUNGSTEN-OXIDE; OPEN FRAMEWORK; HIGH-PERFORMANCE; DYNAMIC WINDOWS; HEXACYANOFERRATE; ELECTRODES; NANOWIRES; SODIUM;

D O I：

10.1002/solr.201900425

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Electrochromic (EC) windows with controllable transmittances according to ambient temperature and solar irradiation strength are highly desired for energy-efficient buildings. However, traditional EC windows operate via consuming electrical energy to trigger the chromogenic reactions, with negligible energy storage ability. Herein, a facile battery-type Prussian blue (PB, Fe-4(III)[Fe-II(CN)(6)](3))/Zn EC window with excellent EC properties (transmittance modulation = 84.9% at 633 nm), remarkable energy storage ability (average output voltage = 1.24 V and areal capacity = 78.9 mAh m(-2)), fast switching time (t(bleaching) = 4.1 s and t(coloring) = 4.6 s), as well as an ultralong cycling lifetime (7000 cycles with 60.7% capacity retention and 92.7% transmittance modulation retention) is reported, thanks to the rational electrode and electrolyte design. As an EC window, this device can effectively promote energy efficiency and occupational comfort of buildings by regulating visible light transmittance. As a battery, this device can work as backup power or a component of smart grids, making the buildings more sustainable and functional. The design concept of this bifunctional device is helpful to further the development of next-generation EC windows.

引用

页数：9