Paper-based microfluidic aluminum–air batteries: toward next-generation miniaturized power supply

Shen, Liu‐Liu; Zhang, Guirong; Biesalski, Markus; Etzold, Bastian J. M.

doi:10.1039/c9lc00574a

Cited by 61 publications

(50 citation statements)

References 77 publications

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“…In the fabrication of microfluidic electronics, flow with a constant velocity is usually more preferable, since electrochemical responses might be sensitive to the flow rate of electrolyte. Besides changing the geometry of the porous substrate, another more straightforward method to obtain a stationary flow is to incorporate absorbent pads …”

Section: Basics Of Paper‐based Microfluidicsmentioning

confidence: 99%

Paper‐Based Microfluidics for Electrochemical Applications

2019

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Paper‐based microfluidics is characteristic of fluid transportation through spontaneous capillary action of paper and has exhibited great promise for a variety of applications especially for sensing. Furthermore, paper‐based microfluidics enables the design of miniaturized electrochemical devices to be applied in the energy sector, which is especially attractive for the rapid growing market of small size disposable electronics. This review gives a brief summary on the basics of paper chemistry and capillary‐driven microfluidic behavior, and highlights recent advances of paper‐based microfluidics in developing electrochemical sensing devices and miniaturized energy storage/conversion devices. Their structural features, working principles and exemplary applications are comprehensively elaborated and discussed. Additionally, this review also points out the existing challenges and future opportunities of paper‐based microfluidic electronics.

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Section: Basics Of Paper‐based Microfluidicsmentioning

confidence: 99%

Paper‐Based Microfluidics for Electrochemical Applications

2019

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“…Some of these recent sensors include all-paper piezoresistive sensors for human movement detection, 11 hydrophobic paper sensors with gas permeability for gas detection, 12 nano-cellulose paper sensors for multi-channel biological detection, 13 temperature sensors 14 and humidity sensors. 15,16 In addition to sensors, paper has also been used for creating microfluidic batteries, 17,18 self-powered devices, [19][20][21][22] supercapacitors, [23][24][25] wet generators 26 and other types of paper-based devices.…”

Section: Introductionmentioning

confidence: 99%

Paper-based sensors for diagnostics, human activity monitoring, food safety and environmental detection

et al. 2022

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“…A micro-power generation system can achieve ultra-high energy density energy power output at a microscale/intermediate scale, so as to meet the needs of micro-aircrafts, portable equipment, and other fields. 1 − 3 Therefore, in recent years, a large amount of research has been done on the development of various micro-power generation systems. Among them, micro-heat engines using liquid hydrocarbon fuels have attracted more and more attention because the heat released by the combustion of liquid fuels in these micro-heat engines may generate high-energy density power sources.…”

Section: Introductionmentioning

confidence: 99%

Experiment on the Influence of Residual Exhaust Gas on the Combustion Characteristics of a Miniature Engine with Platinum Wire Ignition

et al. 2022

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Affected by the scale effect, it is difficult for the gas exchange of a micro-internal combustion (IC) engine to reach the level of a conventional-size engine, resulting in excessively high residual exhaust gas content in the cylinder and serious deterioration of combustion. In order to verify the above point, experiments were carried out based on the variation characteristics of the residual exhaust gas content of the micro-engine during the starting process. The residual exhaust gas content of the micro-engine exhibits a gradually increasing change characteristic during the starting process. Through continuous monitoring of the in-cylinder pressure, the combustion characteristics of the first ignition cycle without residual exhaust gas were captured. Then, it was compared with that in the transitional combustion stage and the stable combustion stage. The latter two combustion stages have different residual exhaust gas contents. The results show that for micro-engines, the combustion cycle with different residual exhaust gas contents presents significantly different combustion characteristics. As the residual exhaust gas content increases, the combustion pressure and the heat release rate decrease, and the combustion duration extends. Excessive residual exhaust gas content is the main reason for the abnormal combustion characteristics of the micro-IC engine with platinum wire ignition. In addition, when there is no residual exhaust gas, the indicated work is the largest and the thermal efficiency is higher. As the in-cylinder residual exhaust gas content increases, the indicated work decreases significantly.

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Paper-based microfluidic aluminum–air batteries: toward next-generation miniaturized power supply

Abstract: Aluminum–air batteries with a unique paper-based microfluidic configuration are fabricated, and their superior discharging performance along with miniaturized size makes them feasible as next-generation power supplies for small electronic devices.

Cited by 61 publications

References 77 publications

Paper‐Based Microfluidics for Electrochemical Applications

Paper‐Based Microfluidics for Electrochemical Applications

Paper-based sensors for diagnostics, human activity monitoring, food safety and environmental detection

Experiment on the Influence of Residual Exhaust Gas on the Combustion Characteristics of a Miniature Engine with Platinum Wire Ignition

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