Emerging non-lithium ion batteries

Wang, Yanrong; Chen, Renpeng; Chen, Tao; Lv, Hongling; Zhu, Guoyin; Ma, Lianbo; Wang, Caixing; Jin, Zhong; Liu, Jie

doi:10.1016/j.ensm.2016.04.001

Cited by 279 publications

(159 citation statements)

References 215 publications

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“…The peak at~732 cm −1 is attributed to the unpaired STFSI-population, whereas the peak at~746 cm −1 is attributed to the STFSILi ion pair. Note that these modes occur at wavenumbers similar to that found for the common TFSI-anion, CF 3 In no case could a peak be identified at a sufficient signal-to-noise ratio that corresponded to the cationic triplet, STFSILi 2 + . Notably, the Raman spectra of the electrolytes with varying metal cations appeared quite similar in this region in that two distinct peaks were apparent that we attribute to free STFSI and paired STFSI.…”

Section: Introductionmentioning

confidence: 99%

“…Surprising, aluminated electrolytes were found to have lower ionic conductivity than those with alkali (+1) cations, but higher ionic conductivity than the alkaline earth (+2) cations. Elemental analysis revealed that these electrolytes contain 1.5 times the aluminum predicted based upon Al(STFSI) 3 complexation, thus, there are chloride anions remaining. The resultant aluminum chloride complexes (could include AlCl 2 + , AlCl 4 − , etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Post-lithium ion batteries, including those based on lithium metal and other more abundant materials, are under active investigation. Next-generation battery electrolytes that allow for improved safety, maintained or longer device lifetimes, and that support post-lithium ion platforms are highly desired [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Ion Transport in Solvent-Free, Crosslinked, Single-Ion Conducting Polymer Electrolytes for Post-Lithium Ion Batteries

et al. 2018

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Solvent-free, single-ion conducting electrolytes are sought after for use in electrochemical energy storage devices. Here, we investigate the ionic conductivity and how this property is influenced by segmental mobility and conducting ion number in crosslinked single-ion conducting polyether-based electrolytes with varying tethered anion and counter-cation types. Crosslinked electrolytes are prepared by the polymerization of poly(ethylene glycol) diacrylate (PEGDA), poly(ethylene glycol) methyl ether acrylate, and ionic monomers. The ionic conductivity of the electrolytes is measured and interpreted in the context of differential scanning calorimetry and Raman spectroscopy measurements. A lithiated crosslinked electrolyte prepared with PEG 31 DA and (4-styrenesulfonyl)(trifluoromethanesulfonyl)imide (STFSI) monomers is found to have a lithium ion conductivity of 3.2 × 10 −6 and 1.8 × 10 −5 S/cm at 55 and 100 • C, respectively. The percentage of unpaired anions for this electrolyte was estimated at about 23% via Raman spectroscopy. Despite the large variances in metal cation-STFSI binding energies as predicted via density functional theory (DFT) and large variations in ionic conductivity, STFSI-based crosslinked electrolytes with the same charge density and varying cations (Li, Na, K, Mg, and Ca) were estimated to all have unpaired anion populations in the range of 19 to 29%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ion Transport in Solvent-Free, Crosslinked, Single-Ion Conducting Polymer Electrolytes for Post-Lithium Ion Batteries

et al. 2018

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“…[3][4][5][6][7][8][9] While developing cathodes for the next-generation batteries has made a significant progress, relatively fewer research efforts have thus far been devoted to Li metal anodes because of the formation of Li dendrites which is considered a critical drawback instigating devastating safety issues of batteries. These new anodes promise an almost 100% increase in practical energy density compared to those of conventional LIB counterparts.…”

mentioning

confidence: 99%

Correlation between Li Plating Behavior and Surface Characteristics of Carbon Matrix toward Stable Li Metal Anodes

Cui

Yao

Ihsan‐Ul‐Haq

et al. 2018

Advanced Energy Materials

119

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anodes. These new anodes promise an almost 100% increase in practical energy density compared to those of conventional LIB counterparts. [3][4][5][6][7][8][9] While developing cathodes for the next-generation batteries has made a significant progress, relatively fewer research efforts have thus far been devoted to Li metal anodes because of the formation of Li dendrites which is considered a critical drawback instigating devastating safety issues of batteries. [10] Along with recent studies on Li plating behaviors, there have been renewed interests in developing Li metal anodes. [11][12][13] In particular, the dendrite-free Li metal anode was made possible by rationally designing the electrolyte composition and electrode morphologies. [14,15] Nevertheless, the current Li metal anodes are far from being viable because of several reasons. Namely, (1) the dendritic Li emerges when the current density raises above the percolation value; (2) the Coulombic efficiencies (CEs) of Li metal anodes are too low to maintain good cyclic stability of batteries; and (3) the design of Li metal anodes is still inadequate, making it difficult to integrate into the existing LIB configurations, such as pouch and cylindrical cells. [12] Most of the strategies currently exercised for dendrite-free Li metal anodes usually fail to resolve all the above mentioned issues. For example, the all-solid-state Li-metal battery requires certain prestress to reduce the interfacial resistance between the solid-state electrolyte and the electrode, but such a prestress is difficult to apply on pouch cells. [16,17] The feasibility of artificial solid electrolyte interphase (SEI) protection on Li foil remains doubtful because the Li foil alone cannot be used as current collector in practical cells due to its hostless nature and huge volume changes during the repeated cycles. [11,18] Among all potential strategies, the incorporation of conductive substrates to function as both the Li host and current collector is considered an ideal approach for further development of practical Li metal anodes. [19] The growth of Li dendrites at high current densities was mitigated by means of reduced local current densities using conductive substrates. [12] Moreover, the conductive substrates also functioned as the current collector, which is compatible with the existing LIB configurations. While copper has been widely studied as the matrix material for hosting Li metal, carbon is considered a more promising candidate than copper Carbonaceous materials are widely employed to host Li for stable and safe Li metal batteries while relatively little effort is devoted to tailoring the surface properties of carbon to facilitate uniform Li plating. Herein, the correlation between Li plating behavior and the surface characteristics of electrospun porous carbon nanofibers (PCNFs) is systemically elucidated through experiments and theoretical calculations. It is revealed that the neat carbon surface suffers from severe lattice mismatch with Li metal, hindering uniform Li plating....

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“…Because of their unlimited resources, low price, and ease of recycling, NIBs have been considered a promising candidate to address serious limitations of LIBs for electrochemical energy storage caused by the limited size of reserves and ever-rising costs of lithium [183][184][185]. The mechanism of electrochemical intercalation reaction in NIBs is almost identical to LIBs.…”

Section: Sodium-ion Batteriesmentioning

confidence: 98%

Electrospun carbon-based nanostructured electrodes for advanced energy storage – A review

Chen

Huang

et al. 2016

Energy Storage Materials

191

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Emerging non-lithium ion batteries

Cited by 279 publications

References 215 publications

Ion Transport in Solvent-Free, Crosslinked, Single-Ion Conducting Polymer Electrolytes for Post-Lithium Ion Batteries

Ion Transport in Solvent-Free, Crosslinked, Single-Ion Conducting Polymer Electrolytes for Post-Lithium Ion Batteries

Correlation between Li Plating Behavior and Surface Characteristics of Carbon Matrix toward Stable Li Metal Anodes

Electrospun carbon-based nanostructured electrodes for advanced energy storage – A review

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