Performance of Mg–14Li–1Al–0.1Ce as anode for Mg-air battery

Ma, Yue; Li, Ning; Li, Deyu; Zhang, Milin; Huang, Xiaomei

doi:10.1016/j.jpowsour.2010.07.097

Cited by 166 publications

(103 citation statements)

References 22 publications

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“…The aged specimens exhibited much lower corrosion current density than did the solutiontreated specimen, and the 16 and 19 h-aged specimens showed higher corrosion potential, which implies reduced electrochemical activity. 4,7) The sudden drop in the anodic current density observed in the 10 and 24 h-aged specimens results from local pitting of Mg and its alloys. 14) Evidence of local pitting confirms the destruction of oxide films or corrosion products formed on the specimen surface.…”

Section: Resultsmentioning

confidence: 99%

“…Ma et al 4) reported the superior discharge properties (anode efficiency and discharge capacity) of the MgLiAl Ce alloy anode of a Mgair battery, and suggested that its superior discharge properties can be attributed to the modification of discharge products on the anode surface by alloying. The discharge products of the MgLiAlCe alloy become looser than those of AZ series alloys.…”

Section: Resultsmentioning

confidence: 99%

“…For example, Ma et al 4) reported that MgLiAlCe alloys exhibited higher anode performance than commercial Mg alloys (pure Mg and AZ31) because discharge products on the anode surface became loose, which retained a large reaction surface during discharge. Zhao et al 7) reported the superior discharge behavior of MgGaHg alloy anodes as compared with anodes of commercial Mg alloys because the addition of Ga accelerates stripping of the corrosion film and the formation of Mg amalgams, thus promoting electrochemical activity.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery

et al. 2014

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The effects of precipitate distribution in commercial Mg alloys on the discharge behavior of a Mgair battery were investigated. Rolled Mg9 mass%Al1 mass%Zn (AZ91) alloy sheets were selected as the anode. The discharge behaviors were evaluated by constant current discharge tests, and the corrosion behaviors were estimated by salt immersion tests and potentiodynamic polarization measurements. In the discharge tests, the peak-aged specimens exhibited much shorter discharge time than the solution-treated specimen. In the corrosion tests, the aged specimens exhibited quite a low corrosion rate as compared with the solution-treated specimen. From the potentiodynamic polarization measurements, the aged specimens showed a much lower corrosion current density and higher corrosion potential than the solution-treated specimen. It is suggested that a stable corrosion barrier by densely distributed ¢-phase precipitates contributed to both the reduction of discharge time and the suppression of corrosion rate for the aged specimens. Microstructural evaluations of the aged specimens revealed that fine ¢-phase precipitates were densely distributed throughout the specimens and that there was little Al-rich ¡ phase, which would accelerate galvanic corrosion between the ¡ matrix and the ¢ phase. It was confirmed that the finely and homogenously distributed ¢ phase in the aged AZ91 specimens acted as a barrier to the dissolution of the ¡-Mg matrix because a large Al-rich ¡ phase was not distributed in the AZ91 specimens in this study.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery

et al. 2014

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“…Metal-air battery with a high theoretical energy output is a promising power source used for emergency lighting, portable electronic equipment, and energy storage of smart grids [1][2][3][4]. The most prominent feature of this battery is the combination of a metal anode with strong discharge activity and an air electrode with an open structure to draw cathode active materials (i.e., oxygen) from air [1].…”

Section: Introductionmentioning

confidence: 99%

High discharge capacity of VB2-Ni as anode for VB2/air battery

Kang¹,

Wang²,

Lu³

et al. 2015

Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering

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Abstract. The compound powders of VB 2 with 25 wt% and 50 wt% Ni were mixed uniformly using a planetary ball miller, respectively. The discharge capacity of VB 2 /air battery with VB 2 -Ni as anode in KOH electrolyte was investigated at room temperature and ambient pressure. Meanwhile, the microstructure of VB 2 -Ni anode before and after discharge were analyzed by scanning electron microscope (SEM).The results indicate that the sintered anode material of VB 2 with 25 wt% Ni has the highest discharge capacity. Moreover, the discharge capacity of VB 2 /air battery reached 7574 mAh with sintered VB 2 -Ni25wt% anode, which was much higher than that with unsintered VB 2 -Ni25wt% anode. However, the discharge capacity of VB 2 /air battery with sintered VB 2 -Ni50wt% anode was much lower than that with unsintered VB 2 -Ni50wt% anode. The VB 2 -Ni25wt% anode sintered at 1050 o C for 30 min is an effective way to improve the discharge capacity of VB 2 /air battery.

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“…Besides, oxygen as an active material from the environment is essentially unlimited. The first lithium-air battery with a structure of Li|organic electrolyte|air was reported in 1996 by Abraham and Jiang [1], and further developed by many scientists over the world [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. However, the investigation and development on lithium-air batteries is still in its initial stage.…”

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confidence: 99%

A novel Co(phen)2/C catalyst for the oxygen electrode in rechargeable lithium air batteries

et al. 2012

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A novel Co(phen) 2 /C catalyst was prepared by coating cobalt(II) phenanthroline (phen) chelate on BP2000 carbon black and then heat treating in an inert atmosphere. The obtained Co(phen) 2 /C product with 1.0 wt% cobalt loading exhibits similar morphology and porosity characteristics to those of the bare BP2000. X-ray diffraction measurements demonstrate a face-centered cubic (fcc) α-Co phase embedded in the carbon support after pyrolysis. Charge/discharge tests of the lithium-oxygen cells using the prepared Co(phen) 2 /C catalyst show high discharge capacities of 4870 mAh g 1 (0.05 mA cm 2 ), 3353 mAh g 1 (0.1 mA cm 2 ) and 3220 mAh g 1 (0.15 mA cm 2 ), respectively. The Co(phen) 2 /C cathode exhibits reasonable reversibility with capacity retention of 1401 mAh g 1 ( 0.1 mA cm 2 ) after 10 cycles. The superior electrochemical performance of the prepared Co(phen) 2 /C catalyst and low cost of the phenanthroline chelating agent indicate that Co(phen) 2 /C is a promising cheap catalyst for lithium-air batteries. Recently, lithium-air batteries have attracted growing interest because they exhibit a huge theoretical specific energy of 11140 Wh kg 1 excluding O 2 , which provides a practical energy density of an order of magnitude that is larger than the current high-performance lithium ion batteries. Besides, oxygen as an active material from the environment is essentially unlimited. The first lithium-air battery with a structure of Li|organic electrolyte|air was reported in 1996 by Abraham and Jiang [1], and further developed by many scientists over the world [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. However, the investigation and development on lithium-air batteries is still in its initial stage. Much fundamental research is required before it can be considered for further technological applications. There are impressive challenges on the development of electrolyte systems and air cathodes [16][17][18][19][20][21][22][23].As the specific capacity of rechargeable lithium air batteries is limited by the air cathode, the nature of the catalyst is important for fabricating higher capacity lithium air batteries [24][25][26][27][28][29][30]. Transition-metal macrocycles such as phthalocyanine, porphyrin, and their derivatives have emerged as some of the most promising non-noble oxygen reduction reaction catalysts (MN x -based catalysts) [31][32][33]. Cobalt phthalocyanine as a catalyst for O 2 electrodes displays a considerable performance in lithium air batteries, which has been reported by Abraham's group [1]. However, cobalt phthalocyanine is too expensive for large scale application. It is very important to develop active catalysts with low cost for lithium air batteries. In this work we report an inexpensive non-noble catalyst Co(phen) 2 /C prepared using a simple and cheap phenanthroline chelating ligand. Electrochemical performance of the prepared catalyst was investigated. Oxygen electrodes using the prepared Co(phen) 2 /C catalyst could deliver high capacities for rechargeable lithium air batt...

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Performance of Mg–14Li–1Al–0.1Ce as anode for Mg-air battery

Cited by 166 publications

References 22 publications

Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery

Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery

High discharge capacity of VB2-Ni as anode for VB2/air battery

A novel Co(phen)2/C catalyst for the oxygen electrode in rechargeable lithium air batteries

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Performance of Mg–14Li–1Al–0.1Ce as anode for Mg-air battery

Cited by 166 publications

References 22 publications

Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg&ndash;Air Battery

Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg&ndash;Air Battery

High discharge capacity of VB2-Ni as anode for VB2/air battery

A novel Co(phen)2/C catalyst for the oxygen electrode in rechargeable lithium air batteries

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Product

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Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery

Effects of Microstructure on Discharge Behavior of AZ91 Alloy as Anode for Mg–Air Battery