Achieving long-cycling sodium-ion full cells in ether-based electrolyte with vinylene carbonate additive

Shi, Juan; Ding, Ling; Wan, Yanhua; Mi, Liwei; Chen, Linjie; Yang, Dan; Hu, Yuxiong

doi:10.1016/j.jechem.2020.10.047

Cited by 46 publications

(17 citation statements)

References 51 publications

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“…The potential obtained in full cells was ∼2.85 V and the highest capacity obtained was ∼140 mAh g −1 which was on par on with other state of art reports (Figure 5b) even though not the highest. The most distinguishing feature, however was the cycling stability of the graphite | PW full cells which was better than most of the other reports in our comparison [45–53] …”

Section: Resultscontrasting

confidence: 50%

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Electrochemical Study of Prussian White Cathodes with Glymes – Pathway to Graphite‐Based Sodium‐Ion Battery Full Cells

Patnaik

Escher

Ferrero

et al. 2022

Batteries & Supercaps

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Prussian white (PW) cathodes exhibit extremely fast rate kinetics for sodium ion (Na + ) insertion/de-insertion at relatively high potentials. However, one of the major bottlenecks is to pair them with appropriate anode materials having similar rate kinetics. Herein, the combination of graphite anodes and several glyme-based electrolytes as appropriate building blocks for PW cathodes to achieve high power density without compromising on energy density is reported. Low defect, Na-rich PW is synthesized, and its electrochemical behavior is studied with conventional carbonate-based electrolytes as well as with diglyme (2G), tetraglyme (4G) and a 1 : 1 mixture of 2G and 4G. The stability of the electrolytes is also monitored via in situ (operando) pressure cell measurements. Graphite j electrolyte j PW cells are then studied in both two and three electrode configurations. It was found that glymes are compatible with the graphite/PW electrode pair and the resulting cells exhibit very good cyclability and rate capability.

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Section: Resultscontrasting

confidence: 50%

“…The most distinguishing feature, however was the cycling stability of the graphite j PW full cells which was better than most of the other reports in our comparison. [45][46][47][48][49][50][51][52][53]…”

Section: Full Cell Studies With Graphite Anodementioning

confidence: 76%

Electrochemical Study of Prussian White Cathodes with Glymes – Pathway to Graphite‐Based Sodium‐Ion Battery Full Cells

Patnaik

Escher

Ferrero

et al. 2022

Batteries & Supercaps

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“…Sodium- and potassium-ion batteries (NIBs and KIBs), − as alternative energy storage systems to LIBs, have recently attracted considerable attention because of their massive reserves, wide distribution, and nontoxicity of sodium and potassium, as well as the similarity in chemical and physical properties to those of lithium. Significant advancements have been made in sodium storage materials.…”

Section: Introductionmentioning

confidence: 99%

Storage Mechanism of Alkali Metal Ions in the Hard Carbon Anode: an Electrochemical Viewpoint

Huang

Wang

Bai

et al. 2021

ACS Appl. Mater. Interfaces

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The storage mechanisms of Li, Na, and K in hard carbon anodes are investigated through systematically exploring their electrochemical behaviors. Two charge/discharge voltage regions are observed for all the Li, Na, and K storage, a slope at a high voltage, and a plateau in a low-voltage range. Considerably different behaviors are revealed by the galvanostatic intermittent titration technique and electrochemical impedance spectroscopy measurements, and accordingly different storage mechanisms are proposed. The sloping region is mainly attributed to the adsorption at defects/heteroatoms for all the Li, Na, and K storage. In the plateau region, pore filling contributes very little to Li storage but much to Na and K storage. Furthermore, significant effects of ionic sizes on the storage behavior in hard carbons are revealed by the electrochemical performance from Li to Na to K. These findings not only offer a fundamental understanding of storage mechanisms of alkali metal ions in hard carbons but also help develop and design innovative electrode materials for low-cost and large-scale energy storage systems.

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“…Owing to its similar HOMO level with ether solvent, the additive VC is synergistically oxidized with DEGDME solvent, which could limit the solvent oxidation and effectively improve the oxidation stability of the electrolyte. 145 For the sodium metal electrode, sodium polysulfide (Na 2 S 6 ), 146 nitrofullerene, 147 and the combination of FEC and fluorinated ether (HFPM) 113 were explored as effective additives to stabilize sodium metal. The achieved long-term cycling performance is attributed to the protective SEI, which effectively facilitates the uniform deposition of Na and suppresses the growth of Na dendrites.…”

Section: Characteristics Of Ether-based Electrolytesmentioning

confidence: 99%

Ether-based electrolytes for sodium ion batteries

et al. 2022

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Achieving long-cycling sodium-ion full cells in ether-based electrolyte with vinylene carbonate additive

Cited by 46 publications

References 51 publications

Electrochemical Study of Prussian White Cathodes with Glymes – Pathway to Graphite‐Based Sodium‐Ion Battery Full Cells

Electrochemical Study of Prussian White Cathodes with Glymes – Pathway to Graphite‐Based Sodium‐Ion Battery Full Cells

Storage Mechanism of Alkali Metal Ions in the Hard Carbon Anode: an Electrochemical Viewpoint

Ether-based electrolytes for sodium ion batteries

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