Solid state electrolytes for electrochemical energy devices

Ghotbi, Mohammad Yeganeh

doi:10.1007/s10854-019-01749-4

Cited by 16 publications

(5 citation statements)

References 208 publications

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“…The EIS measurements were carried out in the frequency range from 0.01 Hz to 100 kHz at the open circuit potential ( V OCP ) with an AC amplitude of 10 mV. The capacitance value of the supercapacitors was calculated from their discharge curves according to the following equations 11 , 12 where I is the discharge current, t is the discharge time, Δ V is the potential window, and m is the mass of the active material for both electrodes used in the fabrication of each supercapacitor. In addition, the energy density ( E SC , in Wh/kg) and power density ( P SC , in W/kg) of the symmetrical supercapacitors were determined using eqs 2 and 3 ( 11 ) by using the galvanostatic charge–discharge curves measured at different current densities of 0.1–1 A/g.…”

Section: Methodsmentioning

confidence: 99%

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Iron Nanoparticles Wrapped with an N-Doped Carbon Material Produced by Using a Zinc Hydroxide Ferrocyanide Nanohybrid for Use in Commercial-like Supercapacitors

2023

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According to the technology of carbon-based supercapacitors, modifying the structure of carbon as an active electrode material leads to an increase in capacitance. A modification involves introducing heteroatoms such as nitrogen into the carbon structure and composing it with metals such as iron. In this research, an anionic source called ferrocyanide was used to produce N-doped carbon consisting of iron nanoparticles. In fact, ferrocyanide was located as a guest between the layers of a host material, which is zinc hydroxide in the α phase. This new nanohybrid material was then heat-treated under Ar, and the heated product after acid washing was iron nanoparticles wrapped with N-doped carbon materials. This material was used as an active material in the production of symmetric supercapacitors with different organic (TEABF 4 in acetonitrile) and aqueous (sodium sulfate) electrolytes as well as a new electrolyte (KCN in methanol). Accordingly, the supercapacitor made by the N/Fe-carbon active material and the organic electrolyte showed a capacitance value of 21 F/g at a current density of 0.1 A/g. This value is comparable to and even higher than the values observed in commercial supercapacitors.

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Section: Methodsmentioning

confidence: 99%

Section: Physicalmentioning

confidence: 99%

Iron Nanoparticles Wrapped with an N-Doped Carbon Material Produced by Using a Zinc Hydroxide Ferrocyanide Nanohybrid for Use in Commercial-like Supercapacitors

2023

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“…8 SPEs are, nevertheless, afflicted with interfacial instability, a diminished discharge capacity, and high resistance at the electrolyte/electrode interface. 9 In recent times, a signicant number of the aforementioned challenges have been resolved through the substitution of LEs and SPEs with gel polymer electrolytes (GPEs). These GPEs are formed by immobilizing liquid electrolytes (e.g., ionic salt dissolved in polar organic solvent) within a suitable polymer.…”

Section: Introductionmentioning

confidence: 99%

A sodium ion conducting gel polymer electrolyte with counterbalance between 1-ethyl-3-methylimidazolium tetrafluoroborate and tetra ethylene glycol dimethyl ether for electrochemical applications

Patel,

Mishra,

Chaudhary

et al. 2024

RSC Adv.

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“…One of the most important components in an electrochemical device is the electrolyte since it is responsible for ionic transportation within the device, thus influencing its performance. Traditional liquid electrolytes are not suitable for the evolution of electrochemical devices since they show several disadvantages, such as the employment of corrosive and inflammable solvents, leakage and evaporation problems, and unfit for flexible devices [ 1 ]. For these reasons, there is a growing interest in the development of new electrolytes suitable for full-solid-state devices since they allow at the same time to improve device safety, simplify the fabrication process, and achieve flexible devices [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Collagen Membrane as Water-Based Gel Electrolyte for Electrochromic Devices

Prontera

Gallo

Giannuzzi

et al. 2023

Gels

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Bio-based polymers are attracting great interest due to their potential for several applications in place of conventional polymers. In the field of electrochemical devices, the electrolyte is a fundamental element that determines their performance, and polymers represent good candidates for developing solid-state and gel-based electrolytes toward the development of full-solid-state devices. In this context, the fabrication and characterization of uncrosslinked and physically cross-linked collagen membranes are reported to test their potential as a polymeric matrix for the development of a gel electrolyte. The evaluation of the membrane’s stability in water and aqueous electrolyte and the mechanical characterization demonstrated that cross-linked samples showed a good compromise in terms of water absorption capability and resistance. The optical characteristics and the ionic conductivity of the cross-linked membrane, after overnight dipping in sulfuric acid solution, demonstrated the potential of the reported membrane as an electrolyte for electrochromic devices. As proof of concept, an electrochromic device was fabricated by sandwiching the membrane (after sulfuric acid dipping) between a glass/ITO/PEDOT:PSS substrate and a glass/ITO/SnO2 substrate. The results in terms of optical modulation and kinetic performance of such a device demonstrated that the reported cross-linked collagen membrane could represent a valid candidate as a water-based gel and bio-based electrolyte for full-solid-state electrochromic devices.

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Solid state electrolytes for electrochemical energy devices

Cited by 16 publications

References 208 publications

Iron Nanoparticles Wrapped with an N-Doped Carbon Material Produced by Using a Zinc Hydroxide Ferrocyanide Nanohybrid for Use in Commercial-like Supercapacitors

Iron Nanoparticles Wrapped with an N-Doped Carbon Material Produced by Using a Zinc Hydroxide Ferrocyanide Nanohybrid for Use in Commercial-like Supercapacitors

A sodium ion conducting gel polymer electrolyte with counterbalance between 1-ethyl-3-methylimidazolium tetrafluoroborate and tetra ethylene glycol dimethyl ether for electrochemical applications

Collagen Membrane as Water-Based Gel Electrolyte for Electrochromic Devices

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