Study on the Electrolyte Containing AlBr3 and KBr for Rechargeable Aluminum Batteries

Chiku, Masanobu; Takeda, H.; Yamaguchi, Yosuke; Higuchi, Eiji; Inoue, Hiroshi

doi:10.5539/ijc.v5n4p1

Cited by 11 publications

(9 citation statements)

References 16 publications

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“…A rechargeable aluminium‐ion battery (AIB) is one of the new prototypes of secondary batteries because of its unique advantages, such as low cost, well‐defined change/discharge plateaus, and high specific energy and power density . As the anode of AIBs, metal aluminium is the most abundant metal element in the earth crust and possesses approximately four‐fold volumetric capacity (8040 mA h cm −3 ) in comparison with metal lithium (2062 mA h cm −3 ) . In the early efforts, a variety of cathode materials, including V 2 O 5 , VO 2 , anatase TiO 2 , fluorinated natural graphite, polymers, and copper hexacyanoferrate, have been widely explored, while they were found to be substantially restricted from practical applications due to low capacity, low voltage plateau, and limited cycle life.…”

Section: Introductionmentioning

confidence: 99%

Flexible Stable Solid‐State Al‐Ion Batteries

Jiao

et al. 2018

Adv Funct Materials

197

173

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Rechargeable aluminum-ion batteries (AIBs) are regarded as promising candidates for post-lithium energy storage systems (ESSs). For addressing the critical issues in the current liquid AIB systems, here a flexible solid-state AIB is established using a gel-polymer electrolyte for achieving robust electrodeelectrolyte interfaces. Different from utilization of solid-state systems for alleviating the safety issues and enhancing energy density in lithium-ion batteries, employment of polymeric electrolytes mainly focuses on addressing the essential problems in the liquid AIBs, including unstable internal interfaces induced by mechanical deformation and production of gases as well as unfavorable separators. Particularly, such gel electrolyte enables the solid-state AIBs to present an ultra-fast charge capability within 10 s at current density of 600 mA g −1 . Meanwhile, an impressive specific capacity ≈120 mA h g −1 is obtained at current density of 60 mA g −1 , approaching the theoretical limit of graphite-based AIBs. In addition to the well-retained electrochemical performance below the ice point, the solid-state AIBs also hold great stability and safety under various critical conditions. The results suggest that such new prototype of solid-state AIBs with robust electrode-electrolyte interfaces promises a novel strategy for fabricating stable and safe flexible ESSs.

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Section: Introductionmentioning

confidence: 99%

Flexible Stable Solid‐State Al‐Ion Batteries

Jiao

et al. 2018

Adv Funct Materials

197

173

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“…Various kinds of medium-low temperature bath for Al and Al-alloy electroplating have been reported [2]: they include organic solvents (e.g. ethers [3,4], aromatic hydrocarbons [5][6][7][8][9], sulfones [10][11][12][13][14][15][16][17][18] and others [19,20]), and ionic liquids [21][22][23][24][25][26][27][28][29], to name only a few. Some of them are applied to improve the corrosion resistance of magnesium alloys and steel [30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Electrochemically active species in aluminum electrodeposition baths of AlCl3/glyme solutions

Kitada

Nakamura

Fukami

et al. 2016

Electrochimica Acta

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Electrochemically active species in aluminum (Al) electrodeposition baths using AlCl3 and less volatile solvents i.e. glymes were investigated. Raman spectroscopy revealed that all the glyme baths contained AlCl4-anions and Al-Cl-glyme cations as ionic species. Room temperature conductivities were as high as the order of 10-3 S cm-1 for the diglyme (G2), triglyme (G3) and tetraglyme (G4) baths, whereas that for the butyl diglyme (butylG2) bath was only 10-4 S cm-1 due to a lower concentration of ionic species. Surprisingly, electrochemical measurements showed that, among the glyme baths, only the G2 bath enabled electrodeposition of Al. Consequently, despite the similar structures of Al-Cl-glyme complex cations, only the G2 complex cations are electrochemically active. This suggests that the desolvation of glymes from Al-Cl-glyme cations and their subsequent reduction is exceptionally easy for the G2 complexes. We changed to "; in the case of potentiostatic electrodeposition at-1 V vs. Al QRE [47] the XRD profiles also show the deposits were crystalline Al.".

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“…6,7,22 A previous spectroscopic study on 1.7 mol dm ¹3 diglyme solution of AlCl 3 (cf. 1.4 mol dm ¹3 in this study) showed that the system consists of molecular species (AlCl 3 ·diglyme) and ionic ones of four-Cl-coordinated AlCl 4 ¹ and six-O/Cl-coordinated [AlCl 2 (diglyme) 2 ] + .…”

Section: ¹2mentioning

confidence: 99%

“…Besides, the media range from high temperature molten salts, 3 organic solvents e.g. ethers, 4,5 aromatic hydrocarbons, [6][7][8][9] and dimethylsulfone (DMSO 2 ), [10][11][12][13][14][15] and ionic liquids (ILs). [16][17][18][19][20][21] Although the high temperature baths have mainly been used for industrial Al electrorefining, medium-low and/or room temperature (RT) baths are anticipated as promising Al electroplating and/or Al battery electrolytes.…”

Section: Introductionmentioning

confidence: 99%

AlCl3-dissolved Diglyme as Electrolyte for Room-Temperature Aluminum Electrodeposition

et al. 2014

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We first report an AlCl 3 -containing diglyme electrolyte for room temperature Al electrodeposition, which have relatively low volatilities and low cost. With the molar ratio of AlCl 3 :diglyme = 1:5, the diglyme solution enabled deposition and dissolution of Al, which required relatively small overpotentials at room temperature. The deposits were not dendritic, indicating potential applications for Al plating or Al ion batteries.

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Study on the Electrolyte Containing AlBr3 and KBr for Rechargeable Aluminum Batteries

Cited by 11 publications

References 16 publications

Flexible Stable Solid‐State Al‐Ion Batteries

Flexible Stable Solid‐State Al‐Ion Batteries

Electrochemically active species in aluminum electrodeposition baths of AlCl3/glyme solutions

AlCl3-dissolved Diglyme as Electrolyte for Room-Temperature Aluminum Electrodeposition

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