Planar and three-dimensional microfluidic fuel cell architectures based on graphite rod electrodes

Kjeang, Erik; McKechnie, Jon; Sinton, David; Djilali, Ned

doi:10.1016/j.jpowsour.2007.02.087

Cited by 128 publications

(111 citation statements)

References 28 publications

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“…Galvanostatic measurements showed B80% Coulombic efficiency at room temperature on the first cycle of charge/discharge, and the initial Coulombic efficiency could be increased to B100% either by preloading traces of lithium salt into the catholyte or increase the iodine concentration. 59,60 Both the cells with 0.08 M and 1 M I 2…”

Section: Iron-based Li-redox Flow Batteriesmentioning

confidence: 99%

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

et al. 2015

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Electrical energy storage system such as secondary batteries is the principle power source for portable electronics, electric vehicles and stationary energy storage. As an emerging battery technology, Li-redox flow batteries inherit the advantageous features of modular design of conventional redox flow batteries and high voltage and energy efficiency of Li-ion batteries, showing great promise as efficient electrical energy storage system in transportation, commercial, and residential applications. The chemistry of lithium redox flow batteries with aqueous or non-aqueous electrolyte enables widened electrochemical potential window thus may provide much greater energy density and efficiency than conventional redox flow batteries based on proton chemistry. This Review summarizes the design rationale, fundamentals and characterization of Li-redox flow batteries from a chemistry and material perspective, with particular emphasis on the new chemistries and materials. The latest advances and associated challenges/ opportunities are comprehensively discussed.

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Section: Iron-based Li-redox Flow Batteriesmentioning

confidence: 99%

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

et al. 2015

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“…It may be possible to increase the power at low flow rates without compromising utilization by increasing the concentration of the supporting electrolyte, increasing the surface area of the catalyst, or by using a fuel with greater electrochemical activity. The lower flow rate improves performance by increasing the reactant flux and by decreasing the concentration boundary layer thickness providing better reactant supply to the electrodes [31].…”

Section: Influence Of Fuel Mixture Flow Ratementioning

confidence: 99%

Electrochemical Oxidation of Hydrazine in Membraneless Fuel Cells

Durga

Ponmani

Kiruthika

et al. 2014

Journal of Electrochemical Science and Technology

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This paper describes the continuous flow operation of membraneless sodium perborate fuel cell using acid/alkaline bipolar electrolyte. Here, hydrazine is used as a fuel and sodium perborate is used as an oxidant under Alkaline-acid media configuration. Sodium perborate affords hydrogen peroxide in aqueous medium. In our operation, the laminar flow based microfluidic membranleless fuel cell achieved a maximum power density of 27.2 mW cm −2 when using alkaline hydrazine as the anolyte and acidic perborate as the catholyte at room temperature with a fuel mixture flow rate of 0.3 mL min -1. The simple planar structured membraneless sodium perborate fuel cell enables high design flexibility and easy integration of the microscale fuel cell into actual microfluidic systems and portable power applications.

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“…To incorporate the redox flow cell, which provides integrated power delivery and cooling to the target MPSoC, we have created a physical model to extract the corresponding behavior and validated it with experimental data extracted from literature [18]. We have used COMSOL Multiphysics [19] to simulate the underlying physical dynamics described in the previous subsection.…”

Section: B Modeling and Validationmentioning

confidence: 99%

“…We have used COMSOL Multiphysics [19] to simulate the underlying physical dynamics described in the previous subsection. To assure the validity of the model, we have created the same microchannel layout of the experimental setup as described in [18]. This microchannel is of 33 mm length, 2 mm width and 150 µm height.…”

Section: B Modeling and Validationmentioning

confidence: 99%

Integrated microfluidic power generation and cooling for bright silicon MPSoCs

Sabry

Sridhar

Atienza

et al. 2014

Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE), 2014

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Abstract-The soaring demand for computing power in our digital information age has produced, as an undesirable sideeffect, a surge in power consumption and heat density for Multiprocessors Systems-on-Chip (MPSoCs). The resulting temperature rise results in operating conditions that already preclude operating all the cores at maximum performance levels, in order to prevent system overheating and failures. With more power demands, MPSoCs will face a power delivery wall due to the reliability limitations of the underlying power delivery medium. Thus, state-of-the-art power and cooling delivery solutions are reaching their performance limits and it will no longer be possible to power up simultaneously all the available on-chip cores (situation known as dark silicon). In this paper we investigate a recently proposed disruptive approach to overcome the prevailing worst-case power and cooling provisioning paradigms for MPSoCs. This proposed approach integrates MPSoC with an on-chip microfluidic fuel cell network for joint cooling and power supply (i.e., localized power generation and delivery). By providing alternative means to power delivery integrated with cooling, MPSoCs are expected to gain in I/O connectivity. Based on this disruptive technology, we can envision the removal of the current limits of power delivery and heat dissipation in MPSoC designs, subsequently avoiding dark silicon and enabling a paradigm shift in future energy-proportional computing architecture designs.

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Planar and three-dimensional microfluidic fuel cell architectures based on graphite rod electrodes

Cited by 128 publications

References 28 publications

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

A chemistry and material perspective on lithium redox flow batteries towards high-density electrical energy storage

Electrochemical Oxidation of Hydrazine in Membraneless Fuel Cells

Integrated microfluidic power generation and cooling for bright silicon MPSoCs

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