High Power Density Electrochemical Thermocells for Inexpensively Harvesting Low‐Grade Thermal Energy

Zhang, Long; Kim, Taewoo; Li, Na; Kang, Tae June; Chen, Jun; Pringle, Jennifer M.; Zhang, Mei; Kazim, Ali Hussain; Fang, Shaoli; Haines, Carter S.; Al-Masri, Danah; Cola, Baratunde A.; Razal, Joselito M.; Di, Jiangtao; Beirne, Stephen; MacFarlane, Douglas R.; González-Martín, Anuncia; Mathew, Sibi; Kim, Yong Hyup; Wallace, Gordon G.; Baughman, Ray H.

doi:10.1002/adma.201605652

Cited by 187 publications

(219 citation statements)

References 26 publications

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“…226,227 There are also additional electrochemical harvesting mechanisms to couple with the harvesting approaches described here. For example, there are sensitised thermal cells, thermo-galvanic and thermo-electro-chemical cells (thermocells), [228][229][230][231][232][233][234][235] where the dependence of electrode potential on temperature is used to construct harvesting thermal cycles and this has recently been reviewed. 236 Piezo-galvanic effects have even been observed where applying an asymmetric force to an electrolyte cell produces an electrical response 237 and thermo-magnetic effects for water splitting.…”

Section: Discussionmentioning

confidence: 99%

Control of electro-chemical processes using energy harvesting materials and devices

et al. 2017

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Energy harvesting is a topic of intense interest that aims to convert ambient forms of energy such as mechanical motion, light and heat, which are otherwise wasted, into useful energy. In many cases the energy harvester or nanogenerator converts motion, heat or light into electrical energy, which is subsequently rectified and stored within capacitors for applications such as wireless and self-powered sensors or low-power electronics. This review covers the new and emerging area that aims to directly couple energy harvesting materials and devices with electro-chemical systems. The harvesting approaches to be covered include pyroelectric, piezoelectric, triboelectric, flexoelectric, thermoelectric and photovoltaic effects. These are used to influence a variety of electro-chemical systems such as applications related to water splitting, catalysis, corrosion protection, degradation of pollutants, disinfection of bacteria and material synthesis. Comparisons are made between the range harvesting approaches and the modes of operation are described. Future directions for the development of electro-chemical harvesting systems are highlighted and the potential for new applications and hybrid approaches are discussed.

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Section: Discussionmentioning

confidence: 99%

Control of electro-chemical processes using energy harvesting materials and devices

et al. 2017

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“…→ Fe(CN) 6 3− + e − ) at the hot anode, which is heated due to its contact with the back of the solar cell panel, and the electrons are transferred to the electrode. The electrons produce electrical power through an external load and are transferred to the cold cathode by the potential difference between the electrodes at both ends [36]. In the cathode, which is at a relatively low temperature, a reduction reaction of Fe(CN) 6 3− and the electrons occurs (i.e., Fe(CN) 6 3− + e − → Fe(CN) 6 4− ), closing the circuit loop and maintaining the electrical neutrality of the electrolyte.…”

Section: −mentioning

confidence: 99%

“…Molecules 2020, 25, x FOR PEER REVIEW 3 of 10 the electrodes at both ends [36]. In the cathode, which is at a relatively low temperature, a reduction reaction of Fe(CN)6 3− and the electrons occurs (i.e., Fe(CN)6 3− + e − → Fe(CN)6 4− ), closing the circuit loop and maintaining the electrical neutrality of the electrolyte.…”

Section: −mentioning

confidence: 99%

Thermocells for Hybrid Photovoltaic/Thermal Systems

et al. 2020

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The photovoltaic conversion efficiency of solar cells is highly temperature dependent and decreases with increasing temperature. Therefore, the thermal management of solar cells is crucial for the efficient utilization of solar energy. We fabricate a hybrid photovoltaic/thermocell (PV/T) module by integrating a thermocell directly into the back of a solar panel and explore the feasibility of the module for its practical implementation. The proposed PV/T hybrid not only performs the cooling of the solar cells but also produces an additional power output by converting the heat stored in the solar cell into useful electric energy through the thermocell. Under illumination with an air mass of 1.5 G, the conversion efficiency of the solar cell can improve from 13.2% to 15% by cooling the solar cell from 61 °C to 34 °C and simultaneously obtaining an additional power of 3.53 μW/cm2 from the thermocell. The advantages of the PV/T module presented in this work, such as the additional power generation from the thermocell as well as the simultaneous cooling of the solar cells and its convenient installation, can lead to the module’s importance in practical and large-scale deployment.

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“…Recent studies have shown that carbon-based materials are a promising electrode material for TGCs (7). A power generation of 12 W/m 2 using activated carbon cloth as an electrode material (8).…”

Section: Motivation and Research Backgroundmentioning

confidence: 99%

“…Fuel cells (126), dye sensitize solar cells, thermogalvanic cells (1,8,127), redox flow cells (128,129) are examples for energy generation/conversion electrochemical devices. Supercapacitors (130,131), pseudo capacitors (132), batteries (133)(134)(135) are examples of energy storage electrochemical devices.…”

Section: Electrochemical Cellmentioning

confidence: 99%

Conducting Polymer Electrodes for Thermogalvanic Cells

Wijeratne

2018

Linköping Studies in Science and Technology. Dissertations

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Donata, Ellen, and Dan, for being good friends for all these years, for all the memorable parties they organized in their place, for the best time we shared during their stay in Norrkoping. Robert, the Australian friend, for being my other main collaborator throughout these years, for sharing, encouraging, helping and exciting discussions, for all the fun time we shared during these years. Jesper, for being a close friend and for the excellent help in finishing the most challenging Ph.D. course 'Advanced Organic Electronics' ever I took. Felipe, for being a good friend and for sharing jokes and exciting discussions. Eliot, my photography teacher, for elevating my interest in photography Josefine and Theresia, for being my first Swedish friends and sharing the office room in Täppan and help in translating. Maria, Elina, and Ioannis (Yainni), the Greek friends, for your wonderful friendship and all the fun time we shared. Anna H., for helping with equipment, and chemicals ordering Ziauddin (Zia 2.0), for discussing the latest updates in the Cricket world (our favorite sport) and for interesting discussion in electrochemistry.

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High Power Density Electrochemical Thermocells for Inexpensively Harvesting Low‐Grade Thermal Energy

Cited by 187 publications

References 26 publications

Control of electro-chemical processes using energy harvesting materials and devices

Control of electro-chemical processes using energy harvesting materials and devices

Thermocells for Hybrid Photovoltaic/Thermal Systems

Conducting Polymer Electrodes for Thermogalvanic Cells

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