Electrochemical study on polypyrrole microparticle suspension as flowing anode for manganese dioxide rechargeable flow battery

Zhao, Yuehong; Si, Shihui; Wang, Lu; Liao, Cui Jiao; Tang, Ping; Cao, Huijun

doi:10.1016/j.jpowsour.2013.10.008

Cited by 22 publications

(18 citation statements)

References 39 publications

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“…[2][3][4][5][6][7] In the late 1970's, slurry electrodes were used in the zinc-air battery system for energy storage. [8][9][10] In the last few years, particular interest has been given to other energy storage applications, [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] particularly non-aqueous lithium-ion batteries [11][12][13][14][15] and electrochemical flow capacitors. [20][21][22][23][24][25] Table I presents a brief summary of the systems studied to date.…”

mentioning

confidence: 99%

Characterizing Slurry Electrodes Using Electrochemical Impedance Spectroscopy

Petek

Hoyt

Savinell

et al. 2015

J. Electrochem. Soc.

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Techniques for interpreting electrochemical impedance spectroscopy of different flowing slurry electrodes configurations are presented based upon models developed for macrohomogeneous porous electrodes. These models are discussed with regards to three different slurry systems; particles in deionized water, in supporting electrolyte without redox active species (akin to electrochemical flow capacitors), and in electrolytes supporting aqueous redox couples (akin to redox flow batteries). Through investigating each of these systems, the individual properties of a slurry can be determined. It was found that traditional overpotential descriptions, (ohmic, activation, and mass transfer) were insufficient to fully describe the impedance and polarization of the slurry electrodes. An overpotential due to the distributed current distribution in the slurry electrode was considered in the frequency range of activation overpotentials that depends on the exchange current density and the ratio of the electronic and ionic conductivities. In slurry electrodes made with multi-wall carbon nanotube particles supporting the ferric/ferrous redox couple, the distributed overpotential was found to be about the same order of magnitude as the activation overpotential and the total voltaic efficiency was over 80% at 200 mA/cm 2 .

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mentioning

confidence: 99%

Characterizing Slurry Electrodes Using Electrochemical Impedance Spectroscopy

Petek

Hoyt

Savinell

et al. 2015

J. Electrochem. Soc.

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“…In operation, type III systems rely on the collisions of active material particles with the current collector and have very low electrochemical activity in the absence of flow. 147,148 This type of carbon-free active material suspension as an energy containing fluid has been explored for both Li-ion materials and polymer suspension based cells, [147][148][149][150][151][152][153] and the chemistry of the active materials will be discussed in more detail in Sec. III.…”

Section: Type Iii: Flowing Active Materials Particles Colliding On mentioning

confidence: 99%

“…204 MnO 2 /Mn 2þ is another commonly used solid cathode 205 and has been paired with polymer suspension electrodes as well, to be discussed in more detail later. 151 MnO 2 has also been reported as a suspension electrode for flow capacitors in the form of percolating network; thus, this material has shown the versatility to have been successfully demonstrated as a RFB active material in multiple different systems and cell designs 42…”

Section: A Transition Metal Active Materialsmentioning

confidence: 99%

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Review Article: Flow battery systems with solid electroactive materials

Koenig

2017

Journal of Vacuum Science &Amp; Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phen

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Energy storage is increasingly important for a diversity of applications. Batteries can be used to store solar or wind energy providing power when the Sun is not shining or wind speed is insufficient to meet power demands. For large scale energy storage, solutions that are both economically and environmentally friendly are limited. Flow batteries are a type of battery technology which is not as well-known as the types of batteries used for consumer electronics, but they provide potential opportunities for large scale energy storage. These batteries have electrochemical recharging capabilities without emissions as is the case for other rechargeable battery technologies; however, with flow batteries, the power and energy are decoupled which is more similar to the operation of fuel cells. This decoupling provides the flexibility of independently designing the power output unit and energy storage unit, which can provide cost and time advantages and simplify future upgrades to the battery systems. One major challenge of the existing commercial flow battery technologies is their limited energy density due to the solubility limits of the electroactive species. Improvements to the energy density of flow batteries would reduce their installed footprint, transportation costs, and installation costs and may open up new applications. This review will discuss the background, current progress, and future directions of one unique class of flow batteries that attempt to improve on the energy density of flow batteries by switching to solid electroactive materials, rather than dissolved redox compounds, to provide the electrochemical energy storage.

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“…10,11 In most cases, PPy-based electrode materials can be synthesized by way of chemical polymerization, which generally involves the use of an insulating polymer binder, possibly lowering the electrochemical performances. [12][13][14][15] On the contrary, electrochemical polymerization can directly combine the polymer with the metal substrate and exclude the use of a polymer binder. Seemingly, it would be interesting to assemble the binder-free PPy-based cathodes for SIBs by way of facile one-step electropolymerization of pyrrole on the current collector.…”

Section: Introductionmentioning

confidence: 99%

Observation on Sodium p-Toluenesulfonate Doped Polypyrrole Cathode for Sodium Ion Battery

HouHongying

LiaoQishu

DuanJixiang

et al. 2017

Surface Innovations

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Sodium p-toluenesulfonate (TsONa)-doped polypyrrole (PPy) was synthesized as the cathode active material of sodium ion battery by way of facile one-step electrodeposition on iron (Fe) foil. The micro-morphology and micro-structure of assynthesized TsONa/PPy/iron cathode were characterized in terms of scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction; furthermore, the electrochemical Na-storage activity of TsONa/PPy/iron cathode was investigated by methods of, galvanostatic charge/discharge, cyclic voltammetry and alternating current impedance. As expected, the cauliflower-like TsONa-doped PPy particles tightly combined with the surface of the iron foil without any additional polymer binders; and also, the resultant TsONa/PPy/iron cathode delivered satisfactory electrochemical performances, mainly attributed to high Na-storage activity of PPy matrix and high electronic conductivity induced by doping of TsONa. For example, the reversible discharge capacity of TsONa/PPy/iron cathode remained about 98 mAh/g after at least 50 cycles and the corresponding coulombic efficiency was 92%, indicating high cyclic stability and reversibility of TsONa/PPy/iron cathode for sodium ion battery.

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Electrochemical study on polypyrrole microparticle suspension as flowing anode for manganese dioxide rechargeable flow battery

Cited by 22 publications

References 39 publications

Characterizing Slurry Electrodes Using Electrochemical Impedance Spectroscopy

Characterizing Slurry Electrodes Using Electrochemical Impedance Spectroscopy

Review Article: Flow battery systems with solid electroactive materials

Observation on Sodium p-Toluenesulfonate Doped Polypyrrole Cathode for Sodium Ion Battery

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