Integrated smart electrochromic windows for energy saving and storage applications

Xie, Zhong; Jin, Xiujuan; Chen, Gui; Xu, Jing; Chen, Di; Shen, Guozhen

doi:10.1039/c3cc47950a

Cited by 173 publications

(108 citation statements)

References 24 publications

(28 reference statements)

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“…[ 446,447 ] Certainly, the energy balance of the Willis Tower is far more important than what could smart windows store and harvest, yet this could be part of the smart-building venture, combined with other energy effi cient solutions. [ 448 ] Other grid-like transparent energy conversion devices have been subsequently proposed. [ 449 ] Li et al have designed semitransparent transparent devices by means of interdigit electrodes.…”

Section: Optically Active Schemes/confi Gurationsmentioning

confidence: 99%

Design Considerations for Unconventional Electrochemical Energy Storage Architectures

Vlad

Singh

Galande

et al. 2015

Advanced Energy Materials

277

204

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all need to be used in conjugation with an energy storage system to provide smooth power leveling. Currently, electrochemical energy storage systems are by far the most optimal solutions for powering a broad range of technologies, expanding from compact and light-weighted portable electronic devices to stationary gridscale energy storage applications. [3][4][5][6] These energy storage devices (batteries and supercapacitors) store the available electrical energy in the form of chemical energy and release it whenever needed, by simply reversing the electrochemical reaction. [7][8][9][10][11] Among various available battery chemistries, lithium batteries and supercapacitors are the most promising technologies. [ 7,[9][10][11][12][13][14][15][16][17][18][19][20] Ever since the realization of the fi rst electrochemical energy storage cell by Alessandro Volta (end of 17th century), the working principle and its function has changed very little. [ 21,22 ] Basically, two redox couples (or charge storage electrodes), electrically and physically separated, are bridged by an ion conducting medium to constitute an electrochemical cell. This holds true also for modern Li-ion batteries, although the chemistry involved is much more complex. During operation, the electrons are transferred through an external circuit while ions shuttle through the electrolyte to counterbalance the depleted charge at the electrodes. [ 23 ] So far, much of the effort has been directed towards improvement of the energy and power characteristics by downsizing the active components, re-engineering the current collectors and separators, as well as fi ne-tuning the Batteries have become fundamental building blocks for the mobility of modern society. Continuous development of novel battery chemistries and electrode materials has nourished progress in building better batteries. Simultaneously, novel device form factors and designs with multi-functional components have been proposed, requiring batteries to not only integrate seamlessly to these devices, but to also be a multi-functional component for a multitude of applications. Thus, in the past decade, along with developments in the component materials, the focus has been shifting more and more towards novel fabrication processes, unconventional confi gurations, and additional functionalities. This work attempts to critically review the developments with respect to emerging electrochemical energy storage confi gurations, including, amongst others, paintable, transparent, fl exible, wire or cable shaped, ultra-thin and ultra-thick confi gurations, as well as hybrid energy storage-conversion, or graphene-incorporated batteries and supercapacitors. The performance requirements are elaborated together with the advantages, but also the limitations, with respect to established electrochemical energy storage technologies. Finally, challenges in developing novel materials with tailored properties that would allow such confi gurations, and in designing easier manufacturing techniques that can be widely adopted ar...

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Section: Optically Active Schemes/confi Gurationsmentioning

confidence: 99%

Design Considerations for Unconventional Electrochemical Energy Storage Architectures

Vlad

Singh

Galande

et al. 2015

Advanced Energy Materials

277

204

View full text Add to dashboard Cite

show abstract

“…However, because of the complex fabrication involved in realizing integration and the challenges of achieving multiple functions, until now, only a few simple integrated energy devices that just simultaneously realize both energy conversion and energy storage, or as the power source for other electronic devices, such as photodetectors and sensors, have been successfully explored [23,67]. In the past few years, integrated energy system with planar structures, such as selfcharged LIBs [85,86], self-charged SCs [87,88], LIBs or SC powered photodetectors [89,90], and smart windows [91][92][93], have been successfully designed and demonstrated. As for integrated energy systems with a fiber structure, the simplest integration may be connecting fiber energy storage devices with other electronics by the wires.…”

Section: Flexible Fiber Integrated Energy Systemmentioning

confidence: 99%

Flexible fiber energy storage and integrated devices: recent progress and perspectives

2015

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Flexible fiber-shaped energy storage devices have been studied and developed intensively over the past few years to meet the demands of modern electronics in terms of flexibility, weavability and being lightweight. In this review, fiber electrodes and flexible fiber energy storage devices containing solidstate supercapacitors (SCs) and lithium-ion batteries (LIBs) are carefully summarized with particular emphasis on their electrode fabrication, structure design and flexibility. In addition, emerging wireshaped integrated energy systems, combined energy storage and solar cells, as well as other electronic devices to realize self-charging and self-powered integrated systems are specifically highlighted.

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“…Such smart pseudocapacitive glass windows show great potential in functioning as electrochromic windows and concurrently powering electronic devices. Lately, Xie et al designed a self-powered electrochromic smart window with tunable transmittance driven by dye-sensitized solar cells, which also acts as a photocharged electrochromic supercapacitor with high areal capacitance and color changes reversibility [53]. Niobium oxide (Nb 2 O 5 ) is another cathodic electrochromism oxide, and the charge-storage mechanism of intercalation pseudocapacitance is characterized as an intrinsic property of Nb 2 O 5…”

Section: Materials Candidates Metal Oxidesmentioning

confidence: 99%

Electrochromic energy storage devices

2016

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Energy storage devices with the smart function of changing color can be obtained by incorporating electrochromic materials into battery or supercapacitor electrodes. In this review, we explain the working principles of supercapacitors, batteries, and electrochromic devices. In addition, we discuss the material candidates for electrochromic energy storages in detail. The challenges of the integrated electrochromic energy system for simultaneous realization of electrochromism and energy storage are specially highlighted.

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Integrated smart electrochromic windows for energy saving and storage applications

Abstract: A self-powered electrochromic smart window with tunable transmittance driven by dye-sensitized solar cells has been designed, which also acts as a photocharged electrochromic supercapacitor with high areal capacitance and reversible color changes.

Cited by 173 publications

References 24 publications

Design Considerations for Unconventional Electrochemical Energy Storage Architectures

Design Considerations for Unconventional Electrochemical Energy Storage Architectures

Flexible fiber energy storage and integrated devices: recent progress and perspectives

Electrochromic energy storage devices

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