Heat management in aluminium/air batteries: sources of heat

Patnaik, R.S.M.; Ganesh, S.; Ashok, Gupta.; Ganesan, M.; Kapali, V.

doi:10.1016/0378-7753(94)01909-6

Cited by 21 publications

(13 citation statements)

References 2 publications

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“…At this point, the electrode potential at open-circuit is À1.73 V vs. Hg/HgO [67], which is a mixed electrode potential owing to the oxidation of aluminium, the reduction of water and the growth of aluminium hydroxide layer. The film-free surface then undergoes dissolution via a series of 3 one-electron steps and hydroxide addition, leading to the final tri-hydroxide, Al(OH) 3 [10]:…”

Section: Mechanism Of Super-pure Aluminium Corrosion In Alkaline Solumentioning

confidence: 98%

“…The addition of zinc oxide, in a concentration range of 50e 600 Â 10 À3 mol dm À3 , was investigated as a corrosion inhibitor for 99.9995% Al in 4 mol dm À3 KOH, under open-circuit conditions [40,67,110]. A maximum inhibition efficiency of 97.5% was recorded via a hydrogen collection method with a concentration of 0.2 mol dm À3 ZnO (Table 4) [40].…”

Section: Zinc Oxidementioning

confidence: 99%

“…The zinc deposited on the aluminium surface, increasing the overpotential for hydrogen evolution. The zinc deposit shifted the anodes open-circuit potential in the positive direction, from À1.7 to À1.3 V vs. Hg/HgO because the electrode potential of zinc is more positive than that of aluminium [40,67]. The anodic polarisation curve for 99.9995% aluminium in a 200 Â 10 À3 mol dm À3 zincated solution shows a peak at À1.07 vs. Hg/HgO.…”

Section: Zinc Oxidementioning

confidence: 99%

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Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

394

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: Mechanism Of Super-pure Aluminium Corrosion In Alkaline Solumentioning

confidence: 98%

Section: Zinc Oxidementioning

confidence: 99%

Section: Zinc Oxidementioning

confidence: 99%

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Developments in electrode materials and electrolytes for aluminium–air batteries

Egan¹,

León²,

Wood³

et al. 2013

Journal of Power Sources

394

191

View full text Add to dashboard Cite

show abstract

“…Aluminium has consequently long attracted attention as an anode in the Al-air battery because of its high theoretical Ampere-hour capacity and overall specific energy. [8][9][10][11] Although these values are reduced in a practical battery because of the inability to operate aluminium and the air cathode at their thermodynamic potentials, and because water is consumed in the discharge reaction, the practical energy density still exceeds that of most commercially available rechargeable battery systems. 12 The inherent hydrogen generation of the aluminium anode in aqueous electrolytes introduces additional limitations, which have been met by designing the batteries as reserve systems with the electrolyte added just before use, or as mechanically rechargeable batteries with the aluminium anode replaced after each discharge.…”

Section: -4mentioning

confidence: 99%

The rechargeable aluminum-ion battery

2011

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We report a novel aluminium-ion rechargeable battery comprised of an electrolyte containing AlCl 3 in the ionic liquid, 1-ethyl-3-methylimidazolium chloride, and a V 2 O 5 nano-wire cathode against an aluminium metal anode. The battery delivered a discharge capacity of 305 mAh g À1 in the first cycle and 273 mAh g À1 after 20 cycles, with very stable electrochemical behaviour.Since the early 1990s, lithium ion batteries based on a carbonaceous material such as graphite as the anode, a lithiated metal oxide (LiMO, e.g. LiCoO 2 ) cathode, and an aprotic liquid electrolyte have been the subjects of intense scientific and commercial interest for portable electronics applications. In recent years, the demand for secondary/rechargeable batteries with higher operating voltages, improved cycling stability, higher power densities, enhanced safety, and lower initial and life cycle costs has increased to meet new needs for smaller, lighter, more powerful electronic devices. Growing interest in hybrid electric vehicles (HEV) and plug-in hybrid electric vehicles (PHEVs) designed to simultaneously reduce dependence on fossil fuel-derived energy and to lower the carbon footprint of humans compounds the current need for advanced, cost-effective electrical energy storage technologies. 1Due to their high energy density and low self-discharge rate, Li-ion batteries are considered the most promising technology for meeting these demands for the foreseeable future. 2-4Aluminium is the most abundant metal and the third most abundant element in the earth's crust. An aluminium-based redox couple, which involves three electron transfers during the electrochemical charge/discharge reactions, provides competitive storage capacity relative to the single-electron Li-ion battery.5-7 Additionally, because of its lower reactivity and easier handling, such an aluminium-ion (Al-ion) battery might offer significant cost savings and safety improvements over the Li-ion battery platform. Aluminium has consequently long attracted attention as an anode in the Al-air battery because of its high theoretical Ampere-hour capacity and overall specific energy. [8][9][10][11] Although these values are reduced in a practical battery because of the inability to operate aluminium and the air cathode at their thermodynamic potentials, and because water is consumed in the discharge reaction, the practical energy density still exceeds that of most commercially available rechargeable battery systems. 12 The inherent hydrogen generation of the aluminium anode in aqueous electrolytes introduces additional limitations, which have been met by designing the batteries as reserve systems with the electrolyte added just before use, or as mechanically rechargeable batteries with the aluminium anode replaced after each discharge. Even with these adjustments, reliable electrically rechargeable aluminium/air batteries are considered unfeasible using aqueous electrolytes, due to the high corrosion and hydrogen evolution of aluminium in the electrolyte, which leads to a sharp red...

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“…Al has drawn a particular interest as an anode for the Al-air battery due to its overall specific energy and high theoretical ampere-hour capacity [187][188][189][190][191]. However, there are two main drawbacks reducing these values in a practical battery.…”

Section: Aluminum-ion Batterys (Aibs)mentioning

confidence: 99%

Aluminum-based materials for advanced battery systems

Qiu

Zhao

et al. 2017

Sci. China Mater.

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There has been increasing interest in developing micro/nanostructured aluminum-based materials for sustainable, dependable and high-efficiency electrochemical energy storage. This review chiefly discusses the aluminum-based electrode materials mainly including Al2O3, AlF3, AlPO4, Al(OH)3, as well as the composites (carbons, silicons, metals and transition metal oxides) for lithium-ion batteries, the development of aluminum-ion batteries, and nickel-metal hydride alkaline secondary batteries, which summarizes the methodologies, related charge-storage mechanisms, the relationship between nanostructures and electrochemical properties found in recent years, latest research achievements and their potential applications. In addition, we raise the relevant challenges in recently developed electrode materials and put forward new ideas for further development of micro/nanostructured aluminum-based materials in advanced battery systems.

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Heat management in aluminium/air batteries: sources of heat

Cited by 21 publications

References 2 publications

Developments in electrode materials and electrolytes for aluminium–air batteries

Developments in electrode materials and electrolytes for aluminium–air batteries

The rechargeable aluminum-ion battery

Aluminum-based materials for advanced battery systems

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