Investigation of commercial aluminum alloys as anode materials for alkaline aluminum–air batteries

Wang, Tao; Zhu, Yuanchang; Li, Yifan; Yang, Kai; Lu, Wenyi; Peng, Ke; Tian, Zhong‐Qun

doi:10.1039/d2se01341j

Cited by 10 publications

(5 citation statements)

References 69 publications

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“…The maximum power densities obtained for the Al‐smooth and Al‐porous electrode are 5.24 mWh cm −2 and 7.42 mWh cm −2 , respectively. The higher power density can be attributed to the improvement of electrochemical activity [38] . Due to its anodic activity, the Al‐porous anode shows higher discharge voltage and better power density.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of 3‐D Porous Pure Al Electrode for Al‐Air Battery Anode and Comparison of its Electrochemical Performance with a Smooth Surface Electrode

Kahveci

2023

ChemElectroChem

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This study compared the electrochemical performances of porous surface electrodes obtained by the salt casting process against a smooth surface electrode. Potentiodynamic polarization test, linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) tests of porous and smooth Al electrodes were performed using 0.5 M NaOH solution. According to the Tafel analysis, the Jcor value of the Al‐porous electrode was measured as 3.23 mA cm−2, which is approximately 55 % higher than the Al‐smooth electrode. The Ecor value was more negative for the Al‐porous electrode. Results of the low charge transfer resistance (2.2 Ω) of the Al‐porous electrode compared to the Al‐smooth electrode (2.8 Ω) concluded that the porous surface was increased the current density by increasing charge transport due to higher surface area. The galvanostatic discharge tests of the electrodes were carried out in an Al‐air battery test cell using a graphite carbon air cathode. As a result, the power density of the Al‐porous electrode was approximately 42 % higher than the Al‐smooth surface electrode.

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Section: Resultsmentioning

confidence: 99%

“…The higher power density can be attributed to the improvement of electrochemical activity. [38] Due to its anodic activity, the Al-porous anode shows higher discharge voltage and better power density.…”

Section: Chemelectrochemmentioning

confidence: 99%

Preparation of 3‐D Porous Pure Al Electrode for Al‐Air Battery Anode and Comparison of its Electrochemical Performance with a Smooth Surface Electrode

Kahveci

2023

ChemElectroChem

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“…24 Mostly, the commercial Al alloys retired from aerospace, automobile, and electronics can be used directly as Al anodes for Al-air batteries to convert the energy contained in Al, and the discharge products (Al(OH) 4 − ) can be returned to primary Al or commercial Al alloy through oxidation and further electrolytic processes of Al production. 6,25 This demonstrates that commercial Al alloys can realize high-quality utilization of retired Al alloys. Therefore, commercial Al alloys can bring great possibilities for the selection of low-cost and highperformance anodes for Al-air batteries.…”

Section: Introductionmentioning

confidence: 85%

“…Commercial Al alloys, which are widely used in aerospace, automobile, electronics, and shipbuilding industries, have the advantages of largest output and low cost. , The commercial Al alloys which contained numerous alloying elements exhibit greater performance due to the contributions of each specific alloying element . Mostly, the commercial Al alloys retired from aerospace, automobile, and electronics can be used directly as Al anodes for Al-air batteries to convert the energy contained in Al, and the discharge products (Al(OH) 4 – ) can be returned to primary Al or commercial Al alloy through oxidation and further electrolytic processes of Al production. , This demonstrates that commercial Al alloys can realize high-quality utilization of retired Al alloys. Therefore, commercial Al alloys can bring great possibilities for the selection of low-cost and high-performance anodes for Al-air batteries.…”

Section: Introductionmentioning

confidence: 99%

Effect Factors on the Performances of Commercial Al Alloy as Anode for Al-Air Batteries

Zhu

Hua

et al. 2023

Energy Fuels

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Commercial Al alloys are prospective anodes for Al-air batteries in alkaline solutions owing to the merits of largest output and low cost. Herein, the influence factors of corrosion behavior and electrochemical properties on the commercial Al alloys as anodes are investigated in detail through the hydrogen collection method and multiple electrochemical measurements. The factors include alloy grade, solution temperature, and electrolyte concentration. The results show that the 7075 alloy displays a lower self-corrosion rate and better electrochemical properties, which presents a high specific capacity of 2508.04 mAh g–1 at 75 mA cm–2 and a high energy capacity of 2020.64 Wh kg–1 at 50 mA cm–2. Considering the performance, the 7075 alloy can be applied to the preferred anode material for Al-air batteries. The study is of great significance for understanding the multicomponent commercial Al alloy anodes in alkaline batteries.

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“…To solve these obstacles, AlÀ air batteries have been extensively studied in the past decades, but mainly from the materials aspects, [12] including cathode catalysts for oxygen reduction reactions, [13][14][15] doped Al metal anode to suppress selfcorrosion, [16][17][18][19][20] and electrolytes additives for more protective electrolyte/electrodes interphase, [21][22][23][24][25] which have been systematically reviewed in previous literature. [12] However, little attention has been placed on factors beyond materials, actually affecting the energy density delivered by AlÀ air batteries, particularly the RTE of an APCS.…”

Section: Introductionmentioning

confidence: 99%

Al−Air Batteries for Seasonal/Annual Energy Storage: Progress beyond Materials

Xu,

Liu,

Sumińska‐Ebersoldt

et al. 2024

Batteries & Supercaps

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Cost‐effective and zero‐carbon‐emission seasonal/annual energy storage is highly required to achieve the Zero Emission Scenario (ZES) by 2050. The combination of Al production via inert‐anode smelting and Al conversion to electricity via Al‐air batteries is a potential option. Although playing an important role in this approach, Al‐air batteries, however, suffer from limited specific energy and inefficient collection of the discharge product. Herein, an important progress in addressing these issues is summarized, emphasizing the importance of non‐material, but rather process‐related aspects. First, a recently reported approach allowing controllable collection of discharge product and electrolyte regeneration is presented. Next, the impact of operational parameters on improving electrochemical performance of Al‐air batteries is summarized. Subsequently, the importance of cell design in addressing the obstacles of Al‐air batteries is emphasized. Last, a perspective on future research directions is proposed.

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Investigation of commercial aluminum alloys as anode materials for alkaline aluminum–air batteries

Abstract: Metal Al is an attractive energy carrier in Al-based batteries with promising recyclability and sustainability in alkaline solutions. However, finding applicable Al anode materials for alkaline Al-air batteries is knotty....

Cited by 10 publications

References 69 publications

Preparation of 3‐D Porous Pure Al Electrode for Al‐Air Battery Anode and Comparison of its Electrochemical Performance with a Smooth Surface Electrode

Preparation of 3‐D Porous Pure Al Electrode for Al‐Air Battery Anode and Comparison of its Electrochemical Performance with a Smooth Surface Electrode

Effect Factors on the Performances of Commercial Al Alloy as Anode for Al-Air Batteries

Al−Air Batteries for Seasonal/Annual Energy Storage: Progress beyond Materials

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