Investigation into the use of quinone compounds-for battery cathodes

Alt, H.; Binder, H.; Köhling, A.; Sandstede, G.

doi:10.1016/0013-4686(72)90010-2

Cited by 169 publications

(108 citation statements)

References 10 publications

Supporting

Mentioning

105

Contrasting

Unclassified

Order By: Relevance

“…[32][33][34][35] Although crystalline quinone derivatives have the potential to be Phase separation of polymers and crystals K Sato et al incorporated in the high-density state and to inhibit dissolution during the redox reaction, crystalline quinone derivatives showed lower utilization rates, such as 58% at 2.2 A g −1 , 6.4% at 0.5 A g −1 and 27% at 2.0 A g −1 , in earlier works (Supplementary Table S3 in the Supplementary Information). 25,31,40 In the present work, the utilization rate of a crystalline quinone derivative in the segregated composite was 54% at 5.0 A g −1 , which is comparable to quinone molecules adsorbed on carbon (Supplementary Table S1 in the Supplementary Information). The high utilization rate is ascribed to the smooth redox reaction originating from the segregated composite structure with the PPy nanoparticles (Supplementary Figure S8 in the Supplementary Information).…”

Section: Resultssupporting

confidence: 59%

“…Quinone derivatives have high theoretical specific capacity based on the two-electron redox reaction. 25,26 For example, the theoretical capacity of DCNQ is calculated to be 237 mAh g −1 . 26 The island-like DCNQ nanocrystals in the conductive PPy sea domain have potentials for a smooth redox reaction.…”

Section: Resultsmentioning

confidence: 99%

“…[25][26][27] In general, solid crystals of quinone derivatives are not often used as active materials for charge storage because of their low conductivity and their solubility in the electrolyte solution during the redox reaction. Therefore, quinone molecules have been grafted to or loaded on carbon materials with high specific area and conductivity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Phase separation of composite materials through simultaneous polymerization and crystallization

2017

View full text Add to dashboard Cite

Composite materials have attracted much interest because of the emergent properties originating from the components. A variety of methods have been studied to control the morphology of composites based on noncrystalline polymers and crystalline materials. However, it is not easy to control complex morphologies, such as segregated sea-island structures, on the submicrometer scale. Polymerization induces crystallization, because supersaturation, which is required for crystallization, is achieved by the consumption of the monomer. Here we report a phase-separation approach based on simultaneous polymerization and crystallization as a new method for the morphological control of composite materials. Segregated polymer and organic crystal domains are obtained by polymerization of an organic monomer solution accompanied by simultaneous crystallization. The phase separation induced the generation of composite materials consisting of a redox-active quinone crystal and conductive polymer with a segregated structure on the submicrometer scale. The segregated composite of 2,3-dichloro-1,4-naphthoquinone and polypyrrole showed enhanced charge-storage properties based on the smooth redox reaction. The present phase-separation approach can be applied to a variety of functional segregated composite materials consisting of crystalline and polymer materials.

show abstract

Section: Resultssupporting

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phase separation of composite materials through simultaneous polymerization and crystallization

2017

View full text Add to dashboard Cite

show abstract

“…90 There has been interest in using quinones in batteries for a long time. [91][92][93] Recently, poly(vinylanthraquinone) polymer immersed in 30 wt % NaOH or KOH solutions was found to exhibit a capacity of 123 mWh/ g and stability for over 500 cycles as a rechargeable air battery (Figure 16(a)). 94 The redox current increased dramatically going from neutral to basic pH, and this was explained by better electrolyte permeation in basic pH due to the swelling of polymer chains from charge repulsion between negative Q 2−…”

mentioning

confidence: 99%

The Electrochemical Reaction Mechanism and Applications of Quinones

Kim¹,

Chung²

2014

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

This tutorial review provides a general account of the electrochemical behavior of quinones and their various applications. Quinone electrochemistry has been investigated for a long time due to its complexity. A simple point of view is developed that considers the relative stability of the reduced quinone species and the values of the first and second reduction potentials. The 9-membered square scheme in buffered aqueous solutions is explained and semiquinone radical stability is discussed in this context. Quinone redox reaction has also been employed in various studies. Diverse examples are presented under three broad categories defined by the roles of quinone: molecular tool for physical chemistry, versatile electron mediator, and charge storage for energy conversion devices.

show abstract

“…The stability enhancement by acidic electrolytes seemed to be generally applicable. A tetrachloro-p-benzoquinone electrode lost < 5% capacity after 50 cycles in a 3 M H2SO4 electrolyte, [40] which contrasted drastically with the > 70% capacity loss within 20 cycles in a carbo- Figure 7 Improving the cyclability organic electrodes by the use of acidic electrolytes. (a) Cyclability of PTO in 4.4 M H2SO4.…”

Section: Aqueous Electrolytesmentioning

confidence: 99%

Advancing Electrolytes Towards Stable Organic Batteries

Liang¹,

Yao²

2017

View full text Add to dashboard Cite

Organic electrode materials offer virtually infinite resource availability, cost advantages, and some of the highest specific energy for batteries to satisfy the demand for large-scale energy storage. Among the biggest challenges for the practical applications of batteries based on organic electrodes is the dissolution of organic active materials into the electrolyte, which leads to underwhelming cycling stability. This minireview provides an overview of electrolyte advancements to improve the stability of organic batteries. Research efforts on the control of solvent polarity, electrolyte mobility, and exploration of novel electrolyte systems are highlighted.

show abstract

Investigation into the use of quinone compounds-for battery cathodes

Cited by 169 publications

References 10 publications

Phase separation of composite materials through simultaneous polymerization and crystallization

Phase separation of composite materials through simultaneous polymerization and crystallization

The Electrochemical Reaction Mechanism and Applications of Quinones

Advancing Electrolytes Towards Stable Organic Batteries

Contact Info

Product

Resources

About