Aluminum–air batteries: A viability review

Goel, Puneet; Dobhal, Daksh; Sharma, Rishabh

doi:10.1016/j.est.2020.101287

Cited by 124 publications

(57 citation statements)

References 147 publications

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“…Common anode metals include aluminum (Al), zinc (Zn), magnesium (Mg), lithium (Li) and calcium (Ca) ( Eaves-Rathert et al., 2020 ; Tan et al., 2016 ; Wang et al., 2018b ; Wu and Yu, 2018 ). Among them, Al has the advantages of abundant reserves, light weight, safety and reliability, and low price as an excellent energy carrier ( Goel et al., 2020 ; Wu et al., 2020b ; Zhao et al., 2020 ). The most important thing is that the specific mass energy of Al is 8100 mWh/g, second only to Li ( Qiao et al., 2019 ; Tan et al., 2017 ); and its specific volume energy is 21,900 mWh/cm 3 , which is much higher than other metals ( Yu et al., 2020b ).…”

Section: Introductionmentioning

confidence: 99%

A high-performance Al-air fuel cell using a mesh-encapsulated anode via Al–Zn energy transfer

et al. 2021

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Summary Aluminum-air fuel cells attract more attention because of their high specific energy, low cost, and friendly environment. However, the problems of hydrogen evolution corrosion and low anode efficiency of aluminum-air fuel cells remain unresolved. Herein, we propose an aluminum-air fuel cell using a mesh-encapsulated anode, where the energy redistribution can be achieved and the discharge performance of the fuel cell can be highly improved. The results show that the highest inhibition efficiency is 73.930% when the aluminum plate is immersed in 6 M potassium hydroxide solution containing 100% zinc oxide. The highest anode efficiency is up to 61.740% when the fuel cell using a mesh-encapsulated anode is discharged at 20 mA/cm 2 , which is more than 2 times than that of no mesh, and the highest capacity can reach 1839.842 mAh/g, which is 101.623% higher than before optimization. Thus, our studies are very instructive for the large-scale application of aluminum-air fuel cells.

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Section: Introductionmentioning

confidence: 99%

A high-performance Al-air fuel cell using a mesh-encapsulated anode via Al–Zn energy transfer

et al. 2021

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“…In the research of metal-air battery, Al-air batteries have become one of the ideal energy storage devices due to their high specific energy, environmentally friendly, and economy. [3] Alkaline electrolytes (such as KOH and NaOH) are mostly used in Al-air batteries. Compared with neutral in the research of metal-air batteries, a few studies have been reported on the anode protection using coatings with both hydrophobic and anticorrosion properties.…”

Section: Introductionmentioning

confidence: 99%

“…The coating materials are generally metal oxides or polymers with anticorrosion function, such as ZnO, [11] CuO, [12] Al 2 O 3 , [13] polyaniline, [14] and polyvinylidene fluoride. [15] As previously mentioned in Equation (3), it can be seen that the inhibition of hydrogen evolution reaction needs to hinder not only the hydroxide ions but also the water molecules. Chen and co-workers explored the influence of the hydrophobic octadecylamine films on cupper substrate, and the hydrophobic films exhibited excellent anticorrosion properties in alkaline solution.…”

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confidence: 99%

Novel Multifunctional Janus‐Type Membrane on Al Anode for Corrosion Protection

Wang

et al. 2021

Adv Materials Inter

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Novel multifunctional Janus‐type membrane with both hydrophobic and anticorrosion abilities is constructed on the surface of aluminum (Al), using MoS2 as a hydrophobic layer and ZnO as a corrosion‐resistant layer. Al anode coated with the Janus‐type membrane is used as an example to study the specific property of the as‐prepared Janus‐type membrane. In the Al–air battery, the self‐corrosion of the Al anode is well inhibited since the Janus‐type membrane can block the invasion of excess hydroxide ions and water molecules simultaneously. The results show that the inhibition efficiency of the Janus‐type membrane is as high as 79.2%. Furthermore, the electrochemical measurements demonstrate that the discharge specific capacity of the Al–air battery with the Janus‐type membrane can reach up to 2095 mAh g−1, approximately two times as much as that of traditional batteries. The integrated strategy of combining hydrophobic and anticorrosion membrane is a novel method for corrosion protection of metal electrode. This Janus‐type membrane holds a great potential toward corrosion inhibition for the other metal in alkaline environment as well.

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“…There is a potential difference between the two electrodes, which causes the electrons to continuously flow from negative to positive, thereby forming a continuous current. The reaction formula is shown in ( 1)-( 3) (Goel et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Optimum parameters for humic acid removal and power production by Al–air fuel cell electrocoagulation in synthetic wastewater

Wei

Gong

Sheng

et al. 2021

Water Science and Technology

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Although humic acid (HA) is a complex natural organic matter, it can potentially harm the environment and human health. In this study, aluminum–air fuel cell electrocoagulation (AAFCEC) was used to remove HAs from water while generating electricity. Initial pH, electrolyte concentration, HA concentration electrode distance and external resistance were investigated to determine the power generation and removal efficiency. The results showed that the better performance of power generation has been acquired in the alkaline solution and larger electrolyte concentration and short electrode distance. Further, Al–Ferron complexation timed spectrophotometry was used to determine the Al speciation distribution in the solution under different parameters. The power density of the cell reached 313.47 mW/cm2 for the following conditions: 1 g/L NaCl concentration, 3 cm electrode distance, 20 Ω external resistor, and pH 9. After about an hour electrolysis, the optimum removal rate of HA was above 99%. The results demonstrated that the AAFCEC is an efficient and eco-friendly water treatment process, and it could be further developed and disseminated in the rural areas and households.

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Aluminum–air batteries: A viability review

Cited by 124 publications

References 147 publications

A high-performance Al-air fuel cell using a mesh-encapsulated anode via Al–Zn energy transfer

A high-performance Al-air fuel cell using a mesh-encapsulated anode via Al–Zn energy transfer

Novel Multifunctional Janus‐Type Membrane on Al Anode for Corrosion Protection

Optimum parameters for humic acid removal and power production by Al–air fuel cell electrocoagulation in synthetic wastewater

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