Electrochemical properties of aluminium anodes for Al/air batteries with aqueous sodium chloride electrolyte

Smoljko, Ivana; Gudić, Senka; Kuzmanić, Nenad; Kliškić, Maja

doi:10.1007/s10800-012-0465-6

Cited by 93 publications

(33 citation statements)

References 45 publications

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“…Neutral saline electrolytes have also been used [27,28,41e47], because compared with caustic solutions they exhibit a lower open-circuit corrosion rate and pose a lower risk to health [48,49]. Carbonation of the alkaline electrolyte by carbon dioxide in the air can impede air access and cause mechanical damage to the gas diffusion electrode [3].…”

Section: Choice Of Electrolyte For Aluminiumeair Cellsmentioning

confidence: 99%

Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

403

191

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h i g h l i g h t s< Discussion of the rationale to choose a suitable alloy for Aleair battery. < Effect of the properties and preparation route to enhance the oxidation of Al. < Effect of the inhibitors on the anode oxidation in the alkaline electrolyte. This review shows the influence of the materials, including: aluminium alloy, oxygen reduction catalyst and electrolyte type, in the battery performance. Two issues are considered: (a) the parasitic corrosion of aluminium at open-circuit potential and under discharge, due to the reduction of water on the anode and (b) the formation of a passive hydroxide layer on aluminium, which inhibits dissolution and shifts its potential to positive values. To overcome these two issues, super-pure (99.999 wt%) aluminium alloyed with traces of Mg, Sn, In and Ga are used to inhibit corrosion or to break down the passive hydroxide layer. Since high-purity aluminium alloys are expensive, an alternative approach is to add inhibitors or additives directly into the electrolyte. The effectiveness of binary and ternary alloys and the addition of different electrolyte additives are evaluated. Novel methods to overcome the self-corrosion problem include using anionic membranes and gel electrolytes or alternative solvents, such as alcohols or ionic liquids, to replace aqueous solutions. The air cathode is also considered and future opportunities and directions for the development of aluminiumeair cells are highlighted.

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Section: Choice Of Electrolyte For Aluminiumeair Cellsmentioning

confidence: 99%

Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

403

191

View full text Add to dashboard Cite

show abstract

“…One method is doping the minimal elements in Al, such as Mg, Zn, Pb, Sn, Ga, In, Mn, Hg and Tl, due to their low melting temperatures, high solubility degree in Al and high hydrogen evolution overpotential. [9][10][11][12] Another way is adding some inhibitors into the electrolyte. Sodium stannate, zinc oxide, indium hydroxide, and citrate are found to be effective in inhibiting the self-corrosion of aluminum in alkaline solutions.…”

Section: Introductionmentioning

confidence: 99%

Performances of an Al–0.15 Bi–0.15 Pb–0.035 Ga alloy as an anode for Al–air batteries in neutral and alkaline electrolytes

et al. 2017

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Aluminum is a very good candidate anode for metal-air batteries due to its negative electrode potential, high theoretical electrochemical equivalent value, abundant reserves and environmental friendliness. The corrosion behavior and electrochemical properties of the Al-1.5Bi-1.5Pb-0.035Ga alloy were investigated by self-corrosion tests and electrochemical techniques, and compared with that of pure Al and Al-Bi-Pb alloys. The performances of Al-air batteries based on these alloy anodes were studied by constant current discharge and I-V discharge tests. The corrosion morphology and discharge surface were also investigated by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX)analysis. The results show that the Al-Bi-Pb-Ga alloy provides a more negative potential and exhibits an enhanced activity in NaCl solution compared with pure Al and Al-Bi-Pb alloys, and gives high power density (253.4 AE 2.5 mW cm À2) and desirable anode efficiency (85.4 AE 0.5%) when used as an anode for Al-air batteries in KOH solution. Moreover, the dissolution mechanism of the Al-Bi-Pb-Ga alloy is also characterized based on the electrochemical measurements and microstructure observations.

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“…These authors also reported that these alloys not only offer increased anode efficiency but also help to reduce the rate of hydrogen evolution [32].…”

Section: Neutral Salt Solutionsmentioning

confidence: 97%

“…El Shayeb, Abd El Wahab and Zein El Abedin [29] also studied the performance of Al-Sn alloys and observed potential values of approximately -0.98 V in 0.6 M NaCl solution. In 2 M NaCl solution, the potential value of this alloy shifts more negative to approximately -1.45 V, and strong anode dissolution occurs, which reduces the electrode polarization [32,33].…”

Section: Neutral Salt Solutionsmentioning

confidence: 99%

“…Gudić, Smoljko and Kliškić [33]and Smoljko, Gudić, Kuzmanić and Kliskić [32]also investigated the performance of ternary Al alloys (Al-InSn) in 2 M NaCl solution, obtaining a potential value of approximately -1.46 V and observing rough surface corrosion. Subsequently, Al-In-Ga alloys were studied by Despić, Dražić, Purenović and Ciković [28]and by El Abedin and Endres [31].…”

Section: Neutral Salt Solutionsmentioning

confidence: 99%

See 1 more Smart Citation

Recent developments in materials for aluminum–air batteries: A review

Mokhtar

Talib

Majlan

et al. 2015

Journal of Industrial and Engineering Chemistry

252

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Electrochemical properties of aluminium anodes for Al/air batteries with aqueous sodium chloride electrolyte

Cited by 93 publications

References 45 publications

Developments in electrode materials and electrolytes for aluminium–air batteries

Developments in electrode materials and electrolytes for aluminium–air batteries

Performances of an Al–0.15 Bi–0.15 Pb–0.035 Ga alloy as an anode for Al–air batteries in neutral and alkaline electrolytes

Recent developments in materials for aluminum–air batteries: A review

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