A high-capacity dual-electrolyte aluminum/air electrochemical cell

Wang, Lei; Liu, Fude; Wang, Wentao; Yang, Guoqiang; Zheng, Dawei; Wu, Zhuangchun; Leung, Michael K. H.

doi:10.1039/c4ra05222f

Cited by 46 publications

(33 citation statements)

References 47 publications

(62 reference statements)

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“…The maximum power density ( P max ) of the battery with LSM‐4CZ as the cathode material can reach 242.9 mW cm −2 , which is approximately 40 and 58 % higher than that of the batteries with LSM (177.3 mW cm −2 ) and CZ (153.7 mW cm −2 ), respectively. The P max is higher than that of the batteries with Pt (160 mW cm −2 ), 60 % Pt/C (85 mW cm −2 ), MnO x ‐fibrous carbon (5.5 mW cm −2 ), XC‐72 carbon black (35.9 mW cm −2 ), and metal oxide (91.1 mW cm −2 ) as the cathode catalyst and it is close to that of the batteries with 23 % PAN/1 % Fe/Vulcan XC72 (300 mW cm −2 ) and cobalt tetramethoxyphenylporphryn (360 mW cm −2 , 60 °C) as the cathode catalyst (Table S1, Supporting Information). This confirms that the introduction of CZ to the LSM@CZ composite material synthesized by an electrostatic self‐assembly method is beneficial to their ORR catalytic activity.…”

Section: Resultssupporting

confidence: 82%

Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

et al. 2017

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La1−xSrxMnO3 (LSM) has been proposed as one of the best oxygen reduction reaction catalysts (ORRCs) to substitute noble metals. It is well known that an improvement of the oxygen‐adsorption capacity is beneficial to the catalytic activity of LSM perovskites. Herein, the composite material La0.7Sr0.3MnO3@Ce0.75Zr0.25O2 (LSM@CZ) has been synthesized by a facile electrostatic self‐assembly method in a two‐step strategy. The CZ nanoparticles are well distributed on the surface of the LSM material. The LSM‐4CZ composite catalyst exhibits a good catalytic activity in alkaline solution. The onset potential, half‐wave potential, and electron transfer number of the LSM‐4CZ composite catalyst are 0.898 V, 0.695 V, and 4, respectively. The LSM‐4CZ composite catalyst has a good durability with current retention of 93.9 % after 80 000 s and it exhibits a much better stability than Pt/C, the retention of which is 83.5 %. If we used LSM‐CZ as the ORRC, the maximum power density of the Al–air battery reached 242.9 mW cm−2, which is approximately 40 % higher than that of the battery with LSM (177.3 mW cm−2). This indicates that the LSM@CZ composite material is a promising cathodic electrocatalyst for metal–air batteries.

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Section: Resultssupporting

confidence: 82%

Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

et al. 2017

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“…The potentials of Mg-air batteries increase with addition of the additives and they mainly attribute to suppression of the selfcorrosion. 27,28 There is a competition between the self-corrosion reaction (Eq. 2) that consumes electrons to generate hydrogen and the battery reaction (Eq.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Sodium Phosphate and Sodium Dodecylbenzenesulfonate as Electrolyte Additives for AZ91 Magnesium-Air Battery

Wang

et al. 2018

J. Electrochem. Soc.

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This paper reports on the improvement of discharge performances of magnesium-air batteries by adding sodium phosphate and sodium dodecylbenzenesulfonate to sodium chloride aqueous solution. Four different electrolytes are tested. Results obtained show that the discharge potential and anode utilization of magnesium-air battery increase significantly with addition of the additives. With an electrolyte of 3.5 wt% sodium chloride+0.5 g · L −1 sodium phosphate, the discharge potential increases from 1.120 V to 1.150 V and the anode utilization increases from 44.1% to 49.1%. The self-corrosion rate of anode has a tendency to decrease with addition of the additives. In solution of 3.5 wt% sodium chloride+0.5 g · L −1 sodium dodecylbenzenesulfonate +0.5g · L −1 sodium phosphate, the self-corrosion is low and the inhibition efficiency can reach 95.2%. Magnesium-air (Mg-air) battery plays an increasingly significant role in power source energy and storage devices.1,2 There are lots of advantages of Mg-air battery, such as high theoretical potential (3.09 V), high specific energy density (6.8 kWh · kg −1 ), neutral electrolyte, environmental friendliness, and low cost. 3-5Although Mg-air battery has a promising future, there are still some problems remarkably limiting its development and delaying its application in daily life. One of the major problems is anodic polarization during battery discharge. [6][7][8] As the total reaction of Mgair battery (Eq. 1) shows:The discharge product is magnesium hydroxide which has a tendency to attach to the surface of anode. It can reduce the reactionsurface area leading to a decrease of discharge potential when battery discharges in a constant-current mode. As we all know, the potential of Mg is −2.37 V (vs · SHE) and it can react spontaneously with aqueous solution according to the following equation:This wasteful self-corrosion leads to low utilization efficiency during discharge process. 9,10 There are numerous efforts to reduce selfcorrosion of magnesium, focusing either on how to improve anode behaviors [11][12][13] or how to optimize electrolyte composition. 14,15 Compared to studies for anode improvement, there are few studies aimed at electrolyte optimization. Furthermore, adding additives to the electrolyte is known to be a convenient and effective method. For example, the self-discharge capacity is significantly increased by adding water soluble graphene to NaCl solution.14 Jing et al. 15 found that when NaF and Na 3 PO 4 were used as additives to electrolyte Mg-MnO 2 cell demonstrated an excellent discharge performance. And sodium dodecylbenzenesulfonate (SDBS) as a good organic inhibitor can work together with the Na 2 SiO 3 on the AZ31 magnesium alloy in 1% NaCl. 16Although electrolyte is one of the most crucial factors, additive research is few comparing the anode materials. Up to now, Mg-air batteries with Na 3 PO 4 and SDBS as additives have never been studied. It is known that sodium chloride aqueous solution (3.5% NaCl) is the most suitable electrolyte for Mg-air batt...

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“…Therefore, a lot of effort has been made to design the air cathode with a three‐dimensional porous framework, which may promote oxygen diffusion through the gas phase and enhance the ORR catalytic activity . Furthermore, conventional Al–air batteries typically appear as a rigid bulk structure enabled by the current air electrodes, which cannot meet the required flexibility and stretchability in the next‐generation flexible and wearable electronics.…”

Section: Figurementioning

confidence: 99%

An All‐Solid‐State Fiber‐Shaped Aluminum–Air Battery with Flexibility, Stretchability, and High Electrochemical Performance

Zhao

Ren

et al. 2016

Angewandte Chemie

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Owing to the high theoretical energy density of metal-air batteries, the aluminum-air battery has been proposed as a promising long-term power supply for electronics. However, the available energy density from the aluminum-air battery is far from that anticipated and is limited by current electrode materials. Herein we described the creation of a new family of all-solid-state fiber-shaped aluminum-air batteries with a specific capacity of 935 mAh g À1 and an energy density of 1168 Wh kg À1 . The synthesis of an electrode composed of cross-stacked aligned carbon-nanotube/silver-nanoparticle sheets contributes to the remarkable electrochemical performance. The fiber shape also provides the aluminum-air batteries with unique advantages; for example, they are flexible and stretchable and can be woven into a variety of textiles for large-scale applications.[ + ] These authors contributed equally to this work.Supporting information for this article can be found under: http://dx.

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A high-capacity dual-electrolyte aluminum/air electrochemical cell

Cited by 46 publications

References 47 publications

Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

Investigation of Sodium Phosphate and Sodium Dodecylbenzenesulfonate as Electrolyte Additives for AZ91 Magnesium-Air Battery

An All‐Solid‐State Fiber‐Shaped Aluminum–Air Battery with Flexibility, Stretchability, and High Electrochemical Performance

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A high-capacity dual-electrolyte aluminum/air electrochemical cell

Cited by 46 publications

References 47 publications

Electrostatic Self‐Assembly of the Composite La0.7Sr0.3MnO3@Ce0.75Zr0.25O2 as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

Electrostatic Self‐Assembly of the Composite La0.7Sr0.3MnO3@Ce0.75Zr0.25O2 as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

Investigation of Sodium Phosphate and Sodium Dodecylbenzenesulfonate as Electrolyte Additives for AZ91 Magnesium-Air Battery

An All‐Solid‐State Fiber‐Shaped Aluminum–Air Battery with Flexibility, Stretchability, and High Electrochemical Performance

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Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries

Electrostatic Self‐Assembly of the Composite La_0.7Sr_0.3MnO₃@Ce_0.75Zr_0.25O₂ as Electrocatalyst for the Oxygen Reduction Reaction in Aluminum–Air Batteries