The short-term cycling properties of Na/PVdF/S battery at ambient temperature

Kim, Jong-Seon; Ahn, Hyo‐Jun; Kim, Icpyo; Kim, Ki-Won; Ahn, Jou–Hyeon; Park, Cheol-Wan; Ryu, Ho-Suk

doi:10.1007/s10008-008-0504-8

Cited by 81 publications

(66 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results of voltage curves are found to be also consistent with the recent experimental results for the lowtemperature Na/S batteries, which shows practically two voltage plateaus at 2.13-2.28 and 1.67-1.82 V in the experimental capacity ranges roughly <400{500 mAh/ g-S. 10,11,13) Similar reaction mechanisms as described in Eq. (7) have been also suggested in recent experimental reports.…”

Section: Values By Pbe and Pbe-d2 Are Listed Insupporting

confidence: 91%

“…[9][10][11][12][13][14][15][16] The voltage-capacity curves of solid Na/S batteries show two plateaus at 2.28 and 1.73 V at 90°C, and 2.23 and 1.67 V at 25°C, 10,11) similar to the high-temperature molten Na/S batteries, and two types of reactions between Na and S can be expected. Lu et al also observed basically two voltage plateaus of 2.13 and 1.82 V in the discharge curve at 150°C, and experimentally suggested the concentration-dependent reactions during discharges.…”

Section: Introductionmentioning

confidence: 85%

See 1 more Smart Citation

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

2014

View full text Add to dashboard Cite

Several Na-S solid phases have been considered to be produced in low-temperature Na/S batteries during chargedischarge reactions. We study structural and electronic properties of ¡-S and Na 2 S x (x = 1, 2, 4, and 5) crystals using first-principles calculations. Calculated structural properties are in good agreement with experiments, and the van der Waals interactions have an essential role on the cohesive properties in ¡-S. The results of energetics and electronic structures show that all the calculated Na-S crystal phases are insulating and are stable relative to the elemental Na and S phases. We estimate voltage curves as a function of the Na concentration in the S-cathode of all-solid Na/S batteries, showing mainly three voltage regions at 2.

show abstract

Section: Values By Pbe and Pbe-d2 Are Listed Insupporting

confidence: 91%

Section: Introductionmentioning

confidence: 85%

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

2014

View full text Add to dashboard Cite

show abstract

“…In Fig. 34 These results confirm the success deposition of calcination treatment, that is, the appearance of the O1s XPS MnO 2 nanoparticles onto the surface of nanotube arrays. 27 The properties of TiO 2 are very sensitive to oxygen vacancies in the lattice and the related nonstoichiometry.…”

Section: Morphology and Composition Analysessupporting

confidence: 76%

Hierarchical three-dimensional MnO₂/carbon@TiO₂ nanotube arrays for high-performance supercapacitors

Wang

Shu

et al. 2016

RSC Adv.

View full text Add to dashboard Cite

Highly ordered TiO2 nanotube arrays (TNAs) modified by other materials with enhanced conductivity and capacitance have been considered to be promising anode materials for supercapacitors. In this work, carbon@TiO2 nanotube arrays (CTNAs) were firstly synthesized through calcination process in Ar atmosphere. Then the hierarchical three-dimensional MnO2/carbon@TiO2 nanotube arrays (CMTNAs) were further developed via hydrothermal deposition of uniformly dispersed MnO2 nanoparticles with the help of the in situ reduction effect of the as-obtained carbon layers. The CTNAs electrode exhibited a high area capacitance of 5.58 mF/cm 2 at a scan rate of 100 mV/s, which is about 11 times higher than that of the TiO2 nanotube arrays annealed in air atmosphere (ATNAs). The highest gravimetric capacitance 521.4 A/g has been achieved with the CMTNAs at a current density of 2 A/g, and the 88.6% of the initial capacitance could be maintained at a current density of 5 A/g up to 2000 cycles via galvanostatic charge-discharge test.

show abstract

“…The reversible cathodic (reduction) and anodic (oxidation) peaks of the sodium electrodes and the Na + ions in the EaSE were observed in each cycle for cell-2 but not for cell-1. This reveals the electrochemical activity in cell-2 [34]. One other observation is the increase in current up to 5 cycles.…”

Section: Electrochemical Stability Of Easementioning

confidence: 82%

Electroactive poly(vinylidene fluoride) fluoride separator for sodium ion battery with high coulombic efficiency

et al. 2016

View full text Add to dashboard Cite

The short-term cycling properties of Na/PVdF/S battery at ambient temperature

Cited by 81 publications

References 13 publications

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

Hierarchical three-dimensional MnO₂/carbon@TiO₂ nanotube arrays for high-performance supercapacitors

Electroactive poly(vinylidene fluoride) fluoride separator for sodium ion battery with high coulombic efficiency

Contact Info

Product

Resources

About

The short-term cycling properties of Na/PVdF/S battery at ambient temperature

Cited by 81 publications

References 13 publications

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

First-Principles Study on Structural and Electronic Properties of α-S and Na–S Crystals

Hierarchical three-dimensional MnO2/carbon@TiO2 nanotube arrays for high-performance supercapacitors

Electroactive poly(vinylidene fluoride) fluoride separator for sodium ion battery with high coulombic efficiency

Contact Info

Product

Resources

About

Hierarchical three-dimensional MnO₂/carbon@TiO₂ nanotube arrays for high-performance supercapacitors