Na[FSA]-[C3C1pyrr][FSA] ionic liquids as electrolytes for sodium secondary batteries: Effects of Na ion concentration and operation temperature

Ding, Changsheng; Nohira, Toshiyuki; Hagiwara, Rika; Matsumoto, Kazuhiko; Okamoto, Yukiko; Fukunaga, Atsushi; Sakai, Shoichiro; Nitta, Koji; Inazawa, Shinji

doi:10.1016/j.jpowsour.2014.06.033

Cited by 120 publications

(119 citation statements)

References 32 publications

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“…11,14 In addition to this, Nohira and Hagiwara et al have reported that Py13-FSA is useful for NaCrO 2 cathode. 15 These results indicate that Py13-FSA can improve the performance because it probably forms thin and uniform surface layer to allow uniform sodiation/ desodiation reactions on the electrode.…”

Section: Resultsmentioning

confidence: 82%

Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes

et al. 2015

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Thick-film electrodes of tin phosphides, Sn 4 P 3 and SnP 3 , were prepared using a mechanical alloying method followed by a gas-deposition method, and were evaluated as Na-ion battery anodes in an organic electrolyte and ionic liquid electrolytes. The Sn 4 P 3 electrode showed a better cycling performance in the organic electrolyte compared with the SnP 3 electrode and an Sn electrode. The performance of the Sn 4 P 3 electrode was further improved by using ionic liquid electrolytes because of a uniformly formed surface layer and resulting uniform sodiation/desodiation reactions on the electrode.

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Section: Resultsmentioning

confidence: 82%

Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes

et al. 2015

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“…A Na/NaCrO 2 half-cell has been shown to exhibit a high reversible capacity of about 120 mAh (g-NaCrO 2 ) -1 between 2.5 and 3.5 V at 90 ºC. [37] Fig. 6 shows the charge-discharge curves of an HC/NaCrO 2 full cell between 1.5 and 3.5 V at 90 ºC.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical performance of hard carbon negative electrodes for ionic liquid-based sodium ion batteries over a wide temperature range

Ding

Nohira

Hagiwara

et al. 2015

Electrochimica Acta

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Please cite this article as: Changsheng Ding, Toshiyuki Nohira, Rika Hagiwara, Atsushi Fukunaga, Shoichiro Sakai, Koji Nitta, Electrochemical performance of hard carbon negative electrodes for ionic liquid-based sodium ion batteries over a wide temperature range, Electrochimica Acta http://dx.Abstract Sodium ion batteries (SIBs) have been attracting much attention as promising next-generation energy storage devices for large-scale applications. The major safety issue with SIBs, which arises from the flammability and volatility of conventional organic solvent-based electrolytes, is resolved by adopting an ionic liquid (IL) electrolyte. However, there are only a few reports on the study of negative electrodes in ILs. Here, we report the electrochemical performance of a hard carbon (HC) negative electrode in Na[FSA]-[C 3 C 1 pyrr][FSA] (FSA = bis(fluorosulfonyl)amide, C 3 C 1 pyrr = N-methyl-N-propylpyrrolidinium) IL over a wide temperature range of −10 ºC to 90 ºC.High-temperature operation, which is realized for the first time by using an IL, can take full advantage of the high capacity of HC even at a very high discharge rate of 1000 mA (g-HC) -1 : the discharge capacity is 230 mAh (g-HC) -1 at 90 ºC and 25 mAh (g-HC) -1 at 25 ºC. Moreover, surprisingly stable cycleability is observed for the HC electrode at 90 ºC, i.e. a capacity retention ratio of 84% after 500 cycles. Finally, a high full-cell voltage of 2.8 V and stable full-cell operation with Coulombic efficiency higher than 99% are achieved for the first time when using NaCrO 2 as the positive electrode at 90 ºC.

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“…Na-ion, Mg-ion and metal-air batteries) for the development of potentially safer devices. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Furthermore, the high (electro)chemical stabilities and non-volatilities exhibited by many IL structures provides interesting electrolyte media for electrochemical gas sensors (e.g. for O 2 , [16][17][18][19] CO 2 ,20,21 NO 2 22 ) where traditional solvents are prone to evaporation leading to device failure, and also for electromechanical actuator, [23][24][25] and electrodeposition applications.…”

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confidence: 99%

Physical and Electrochemical Investigations into Blended Electrolytes Containing a Glyme Solvent and Two Bis{(trifluoromethyl)sulfonyl}imide-Based Ionic Liquids

Neale

Goodrich

Hughes

et al. 2017

J. Electrochem. Soc.

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In this paper, we report on thermophysical and electrochemical investigations of a series of molecular solvent/ionic liquid (IL) binary mixture electrolytes. Tetraethylene glycol dimethyl ether (TEGDME) is utilized as the molecular solvent component in separate mixtures with two bis{(trifluoromethyl)sulfonyl}imide anion based ILs paired with similarly sized cyclic and acyclic alkylammonium cations; 1-butyl-1-methylpyrrolidinium bis{(trifluoromethyl)sulfonyl}imide, [Pyrr 14 ] [TFSI], or N-butyl-N,N-dimethyl-N-ethylammonium bis{(trifluoromethyl)sulfonyl}imide, [N 1124 ] [TFSI]. The blending of ILs with select molecular solvents is an important strategy for the improvement of the typically sluggish transport capabilities of these interesting electrolytic solvents. Bulk volumetric and transport properties are reported as a function of temperature and binary mixture formulation; demonstrating the capacity for enhancing desired properties of the IL. Micro-disk electrode voltammetry and chronoamperometry in O 2 -saturated binary mixture electrolytes was used to assess the effect of formulation on the solubility and diffusivity of the dissolved gas. In addition, further investigations of the behavior of the O 2 redox couple at a GC macro-disk electrode are discussed. The exploration of ionic liquids (ILs) as alternatives to conventional molecular solvents in electrolyte formulations is continually growing for a variety of electrochemical applications. These low melting organic salts can be tailored to exhibit a variety of properties, including hydrophobicity and thermal, chemical, and electrochemical stability, which make them attractive candidate electrolyte solvents. Composed solely of ionic components, ILs consequently possess intrinsic electrolytic conductivity and are additionally non-volatile. These properties have encouraged the use of ILs as (complete or partial) substitutions of the volatile components of commercial Li-ion batteries, electrochemical double layer capacitors (EDLCs), and other prospective battery technologies (e.g. Na-ion, Mg-ion and metal-air batteries) for the development of potentially safer devices.1-15 Furthermore, the high (electro)chemical stabilities and non-volatilities exhibited by many IL structures provides interesting electrolyte media for electrochemical gas sensors (e.g. for O 2 , 16-19 CO 2 , 20,21 NO 2 22 ) where traditional solvents are prone to evaporation leading to device failure, and also for electromechanical actuator, 23-25 and electrodeposition applications. [26][27][28] Nevertheless, while the properties of ILs are dependent on the virtually unlimited combinations of different cation and anion structures, the attractive features are generally coupled with sluggish transport properties relative to conventional electrolytes based on either aqueous or organic solvents. In turn, electrochemical devices constructed with neat IL electrolytes are likely to suffer transport limitations on useable current rates for the given application, for example restricting power capabiliti...

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Na[FSA]-[C3C1pyrr][FSA] ionic liquids as electrolytes for sodium secondary batteries: Effects of Na ion concentration and operation temperature

Cited by 120 publications

References 32 publications

Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes

Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes

Electrochemical performance of hard carbon negative electrodes for ionic liquid-based sodium ion batteries over a wide temperature range

Physical and Electrochemical Investigations into Blended Electrolytes Containing a Glyme Solvent and Two Bis{(trifluoromethyl)sulfonyl}imide-Based Ionic Liquids

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Na[FSA]-[C3C1pyrr][FSA] ionic liquids as electrolytes for sodium secondary batteries: Effects of Na ion concentration and operation temperature

Cited by 120 publications

References 32 publications

Electrochemical Na-insertion/Extraction Properties of Sn&ndash;P Anodes

Electrochemical Na-insertion/Extraction Properties of Sn&ndash;P Anodes

Electrochemical performance of hard carbon negative electrodes for ionic liquid-based sodium ion batteries over a wide temperature range

Physical and Electrochemical Investigations into Blended Electrolytes Containing a Glyme Solvent and Two Bis{(trifluoromethyl)sulfonyl}imide-Based Ionic Liquids

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Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes

Electrochemical Na-insertion/Extraction Properties of Sn–P Anodes