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Колосницын, В. С.; Карасева, Е. В.; Seung, Doyoung; Cho, M. D.

doi:10.1023/a:1021668721859

Cited by 17 publications

(16 citation statements)

References 8 publications

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“…[ 103 ] Especially, because of their low cost, superior safety, high dielectric constant, and low toxicity, [ 104,105 ] sulfones that was utilized in high-voltage Li-ion batteries [ 106,107 ] have been used as single solvents, cosolvents, or additives for Li-S battery electrolytes. [ 4,91,[108][109][110][111][112] Most of the intensively investigated sulfone homologs are tetramethylene sulfone (TMS or sulfolane) [ 109,[113][114][115] and ethyl methyl sulfone (EMS). [ 4,91,108,109,116,117 ] TMS containing 1 M LiTFSI without any cosolvent has been directly used as electrolyte for assessing the formation of Li 2 S and visualizing the resulting morphological changes in a mesoporous carbon/S composite during battery operation.…”

Section: Other Solventsmentioning

confidence: 99%

“…The initial discharge capacities were found to be greatly affected by both the carbon (KB) amount and the additive concentration (100−300 m M ). [ 109,116,117 ] Instead of being as a single solvent for Li-S electrolytes, sulfones were also explored as a cosolvent to blend with other solvents such as DOL, [ 110 ] DME, [ 110,111 ] THF, [ 110,112 ] DGM [ 112 ] and G4 [ 112 ] to yield binary electrolytes, in order to combine the high donor number and low viscosity of ethers with the higher dielectric constant and oxidation potential of sulfones. 1200 mA h g −1 ) and 70 th (ca.…”

Section: Other Solventsmentioning

confidence: 99%

“…A cell with 10 mg KB and 100 m M Li 2 S 5 yields the highest 1 st (ca. [ 110 ] Recently, Yoon et al systematically investigated the electrochemical performances of Li-S batteries in binary TMS/DME mixtures with various volume ratios. 1200 mA h g −1 ) discharge capacities, which are even greater than confi nement approaches, i.e., KB/S composite.…”

Section: Other Solventsmentioning

confidence: 99%

“…In addition to the frequently used liquid electrolytes mentioned above, there have been a few reports of the use of other less volatile organic solvents such as sulfones, N ‐methyl‐2‐pyrrolidone (NMP), and DMSO . Especially, because of their low cost, superior safety, high dielectric constant, and low toxicity, sulfones that was utilized in high‐voltage Li‐ion batteries have been used as single solvents, cosolvents, or additives for Li–S battery electrolytes . Most of the intensively investigated sulfone homologs are tetramethylene sulfone (TMS or sulfolane) and ethyl methyl sulfone (EMS) .…”

Section: Liquid Electrolytes For Li–s Batteriesmentioning

confidence: 99%

See 3 more Smart Citations

Recent Advances in Electrolytes for Lithium–Sulfur Batteries

Zhang

Ueno

Dokko

et al. 2015

Advanced Energy Materials

552

510

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lifetimes. In the past two decades, Li-ion batteries have dominated the rechargeable battery market for portable electronic devices such as smart phones, laptops, and other ubiquitous mobile technologies. However, conventional Li-ion batteries, which typically consist of a graphite anode and lithium transition-metal oxide cathode, have insuffi cient energy densities (theoretically, 350-400 W h kg −1 , practically, 100-220 W h kg −1 ) and are expensive. [ 1 ] These disadvantages severely limit their use in power-intensive applications such as long-range electrical vehicles and stationary energy storage. The demand for such new energy-storage systems has stimulated the development of compact and lightweight rechargeable batteries with superior performances, i.e., higher energy densities and longer cycling lifetimes. Li-S batteries, a "beyond Li-ion" technology, with cathodes that are made mainly of elemental sulfur, have a high theoretical specifi c capacity of 1672 mA h g −1 of active material. A sulfur cathode coupled with a Li metal anode is expected to give a theoretical energy density of 2600 W h kg −1 or 2800 W h L −1 when fully discharged, far greater than those of state-of-the-art Li-ion batteries. [ 2 ] In addition, sulfur is naturally abundant, inexpensive, and environmentally friendly, implying that Li-S batteries should be cheaper than currently available Li-ion batteries.There are, however, several serious problems with Li-S batteries, which have limited their commercial success: a) the reactant (sulfur) and product (Li 2 S) of the redox reaction are insoluble and electronically insulating; b) the Li metal anode is reactive and is prone to dendrite formation during cycling, resulting in safety hazards; c) the active materials undergo large volume expansion/contraction during discharge-charge, and this induces mechanical damage to the electrode; and d) the polysulfi de intermediates readily dissolve in the electrolyte and serve as a redox shuttle. Among these problems, the most critical are the dissolution, diffusion, and side reactions of soluble lithium polysulfi des in the electrolytes, as these processes cause problems such as irreversible loss of active materials from the cathode, low coulombic effi ciency, poor stability, rapid capacity fading, and high self-discharge. As shown in Figure 1 , the common Li-S battery architecture consists of a sulfur cathode (usually a S/C composite) and a Li metal anode The rapidly increasing demand for electrical and hybrid vehicles and stationary energy storage requires the development of "beyond Li-ion batteries" with high energy densities that exceed those of state-of-the-art Li-ion batteries. Li-S batteries, which have very high theoretical capacities and energy densities, are believed to be one of the most promising candidates. The sulfur-based electrochemical reaction requires novel electrolytes to replace the classical carbonate-based electrolyte systems inherited from Li-ion batteries because carbonates are incompatible with the intermediate polysulfi des ...

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Section: Other Solventsmentioning

confidence: 99%

Section: Other Solventsmentioning

confidence: 99%

Section: Other Solventsmentioning

confidence: 99%

Section: Liquid Electrolytes For Li–s Batteriesmentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Electrolytes for Lithium–Sulfur Batteries

Zhang

Ueno

Dokko

et al. 2015

Advanced Energy Materials

552

510

View full text Add to dashboard Cite

show abstract

“…UK-based Oxis Energy has been in this field since 2004 and holds many patents, covering mainly the positive electrode, 106 additive in the electrolyte 107 and anode made of Li metal and intercalation materials. Both Sion Power and Oxis Energy projected that future Li-S cells will have a volumetric energy density comparable to that of state of the art Li-ion cells (~700 Wh/L) but more than twice the gravimetric energy density with values of 400-600 Wh/kg.…”

Section: Key Players In the Fieldmentioning

confidence: 99%