The influence of the electrolyte composition on the electrochemical behaviour of cathodic materials for organic radical batteries

Gerlach, Patrick; Burges, René; Lex‐Balducci, Alexandra; Schubert, Ulrich S.; Balducci, Andrea

doi:10.1016/j.jpowsour.2018.09.099

Cited by 23 publications

(20 citation statements)

References 40 publications

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“…[ 47 ] Evidence for the importance of the solubility was provided in a recent study. [ 48 ] The self‐discharge of PTMA electrodes was evaluated in different electrolytes (carbonates and ionic liquids). The solvent had a large influence on the self‐discharge: ranging from complete discharge within 3 days to ≈10% in 3 days.…”

Section: Polymer‐based Batteries: Materials and Componentsmentioning

confidence: 99%

“…[ 26 ] Interestingly, also an anion‐rocking chair principle can be present in polymer‐based batteries—for instance for PTMA and polyviologen as active materials. [ 48 ] In contrast to the former system, here only the anion conductivity is of importance and, hence, a typical electrolyte for LIBs might not be the best choice. Whereas the two rocking‐chair cell configurations are based on electrolytes with constant ion concentration, the third system—the dual‐ion principle [ 82 ] —leads to changing ion concentrations, where and the electrolyte serves the reservoir for ions.…”

Section: Polymer‐based Batteries: Materials and Componentsmentioning

confidence: 99%

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Polymer‐Based Batteries—Flexible and Thin Energy Storage Systems

et al. 2020

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Within this context, the utilization of renewable energy is gaining increasing interest. One important aspect is the storage of electrical energy. The different applications to store electrical energy range from stationary energy storage (i.e., storage of the electrical energy produced from intrinsically fluctuating sources, e.g., wind parks and photovoltaics) over batteries for electric vehicles and mobile devices (e.g., laptops as well as mobile phones or other smart mobile devices such as smart watches), down to miniature devices for biochips, sensors, as well as "smart packaging" or miniaturized medical devices. Despite being essential in modern life, (some) batteries can look back on a long history-for instance, the lead-acid battery was discovered 150 years ago. Yet, the lead acid battery is still the system of choice for starter batteries in cars until today. Even the beginnings of modern lithium batteries date back to the 1970s. Recently, John B. Goodenough (The

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Section: Polymer‐based Batteries: Materials and Componentsmentioning

confidence: 99%

Section: Polymer‐based Batteries: Materials and Componentsmentioning

confidence: 99%

Polymer‐Based Batteries—Flexible and Thin Energy Storage Systems

et al. 2020

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“…However, a reduced specific capacity was found for PTMA if it was used in highly concentrated systems. This is caused by a decrease in ion mobility and an inhibition of the wetting of the electrode surface …”

Section: Electrolytes For Redox Organic Electrodesmentioning

confidence: 99%

A Comparative Review of Electrolytes for Organic‐Material‐Based Energy‐Storage Devices Employing Solid Electrodes and Redox Fluids

et al. 2020

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Figure 8. Voltage excursion of PTMA during 11 daysofs elf-discharge tests in 1, 2a nd 3 m Py 14 BF 4 in PC. 1 m losesa ll chargea fter 5days, 2 m after 9days, 3 m is able to deliver residualcharge after 11 daysofs elf-discharge. Figure 9. a) The formation of aliquid mixture of 4-methoxy-TEMPOa nd LiTFSI (MTLT; 1:1) at room temperature.b )V oltage profilesa nd cycling stability of as tatic cell with ac atholyte consisting of MTLT + 17 wt %H 2 Ov ersus aLia node. c) The corresponding flow cell setup and charge/discharge behavior.Reproduced from Ref. [102]with permission. Copyright 2015, Wiley.Figure 10. a) ESW as af unction of the temperature of 10 m [BMIm]Cl/H 2 O supporting electrolyte. b) Redox flow cell tests at À32 and À20 8Cbyu sing Ni phthalocyanineanolyte and FeCl 2 catholyte. CE = coulombic efficiency, VE = voltage efficiency, EE = energye fficiency.Reproducedf rom Ref. [121] with permission.

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“…However, PTMA also displays a reduced specific capacity in combination with high concentrated systems. This is caused by the reduced ion mobility and the accompanying decreased conductivity and inhibited wetting of the electrodes …”

Section: Electrolytes For Organic Electrode‐based Devicesmentioning

confidence: 99%

“…This result indicates that the high viscosity, polarity and ion saturation of the IL is preventing the dissolution of the active material, and it is improving the cycling stability of the devices in which they are used. The use of neat ILs is also reducing the self‐discharge of PTMA‐based electrodes . In 1 M Pyr 14 TFSI in PC ca.…”

Section: Electrolytes For Organic Electrode‐based Devicesmentioning

confidence: 99%

A Critical Analysis about the Underestimated Role of the Electrolyte in Batteries Based on Organic Materials

Gerlach

Balducci

2020

ChemElectroChem

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Electrochemical energy storage devices based on organic materials such as polymers and organic molecules (PORMs) are nowadays regarded with increasing attention. The interest on these systems is related to their promising electrochemical performance, their low cost and their high sustainability. In the last years, several works focused on the development of active materials suitable for these systems, while much less studies have been dedicated to the electrolytes. The aim of this short review is to critically analyze these latter results, and to identify the main aspects that should be addressed in the future. Since the electrolyte is a key component of any energy storage devices, this analysis appears of particular importance for the realization of the next generation of PORM‐based devices.

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The influence of the electrolyte composition on the electrochemical behaviour of cathodic materials for organic radical batteries

Cited by 23 publications

References 40 publications

Polymer‐Based Batteries—Flexible and Thin Energy Storage Systems

Polymer‐Based Batteries—Flexible and Thin Energy Storage Systems

A Comparative Review of Electrolytes for Organic‐Material‐Based Energy‐Storage Devices Employing Solid Electrodes and Redox Fluids

A Critical Analysis about the Underestimated Role of the Electrolyte in Batteries Based on Organic Materials

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