The quasicrystal of Mg–Zn–Y on discharge and electrochemical behaviors as the anode for Mg-air battery

Chen, Xingrui; Zou, Qi; Le, Qichi; Hou, Jian; Guo, Ruizhen; Wang, Henan; Hu, Chenglu; Bao, Lei; Wang, Tong; Zhao, Dewei; Yu, Faquan; Atrens, Andrej

doi:10.1016/j.jpowsour.2020.227807

Cited by 102 publications

(50 citation statements)

References 34 publications

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“…Compared with the other reported Mg-air batteries, our Mg-air battery using dual-layer gel electrolyte showed the highest specific capacity with a much higher opencircuit voltage (Figure 3 d with details shown at Table S1). [11,[15][16][17][18][19][20][21]27] Furthermore, our Mg-air batteries also showed both much higher specific capacity and energy density than the other reported batteries, e.g., the specific capacity is fifteen times higher than a Zn-ion battery and the energy…”

Section: Methodsmentioning

confidence: 91%

“…In the discharge process, oxygen was reduced at the air electrode and the Mg anode was oxidized to Mg 2+ . Meanwhile, as the PAM hydrogel and PEO gel were Alloying: Mg-Al-Zn, [17] Mg-Al-Zn-Sm, [17] Mg-Al-La, [18] Mg-Al-Mn-Ca, [16] and Mg-Zn-Y; [21] optimized electrolyte: graphene [19] and agar/graphene gel; [20] catalyst: Fe-Nx-C, [12] mullite [15] and SmMn 2 O 4.8 . [27] Angewandte Chemie Communications Cl À ions conductive, [37] the Cl À ions were migrated through the dual-layer gel electrolyte to the anode driven by potential difference.…”

Section: Angewandte Chemiementioning

confidence: 99%

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High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

Chen

et al. 2021

Angew Chem Int Ed

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Mg-air batteries are explored as the next-generation power systems for wearable and implantable electronics as they could work stably in neutral electrolytes and are also biocompatible. However, high corrosion rate and low utilization of Mg anode largely impair the performance of Mg-air battery with low discharge voltage, poor specific capacity and low energy density. Here, to the best of our knowledge, we first report a dual-layer gel electrolyte to simultaneously solve the above two problems by preventing the corrosion of Mg anode and the production of dense passive layer, respectively. The resulting Mg-air batteries produced an average specific capacity of 2190 mAh g À1 based on the total Mg anode (99.3 % utilization rate of Mg anode) and energy density of 2282 Wh kg À1 based on the total anode and air electrode, both of which are the highest among the reported Mg-air batteries. Besides, our Mg-air batteries could be made into a fiber shape, and they were flexible to work stably under various deformations such as bending and twisting.Wearable and implantable electronic devices represent the next-generation electronics and are booming rapidly in the recent decade. [1][2][3] To stably and long-termly power these electronic devices, it is critical to make matchable and safe energy storage devices. [4][5][6][7] To this end, metal-air batteries with high energy densities have attracted increasing interests. [8,9] Among them, Mg-air batteries work stably in neutral electrolytes and are also biocompatible as Mg 2+ ions are harmless to the human body. [10][11][12] Therefore, Mg-air batteries are explored as promising candidates on the skin and inside the body.

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Section: Methodsmentioning

confidence: 91%

Section: Angewandte Chemiementioning

confidence: 99%

High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

Chen

et al. 2021

Angew Chem Int Ed

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“…Pitting corrosion [88] Pre-stretch AZ31 alloy Improved corrosion resistance Hydrogen induced cracking [89] micro-galvanic corrosion because of the potential difference between the second phase and the substrate [101,102] . Although the second phase is generally not corroded, the type, content, morphology and distribution of the second phase can affect the corrosion of the magnesium matrix, so the second phase plays a vital role in the corrosion of magnesium alloys [103,104] .…”

Section: Table 1 Some Of Factors Influencing Corrosion Resistance Of Magnesium Alloymentioning

confidence: 99%

Research Progress on Corrosion Resistance of Magnesium Alloys with Bio-inspired Water-repellent Properties: A Review

Cai

Lian

et al. 2021

J Bionic Eng

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Thanks to its excellent mechanical properties, magnesium alloys have many potential applications in the aerospace and other fields. However, failure to adequately solve corrosion problems of magnesium alloy becomes one of the factors restricting its wide use in many industrial fields. Inspired by nature, researchers designed and fabricated bio-inspired water-repellent (superhydrophobic and slippery liquid-infused porous surface) surfaces with special wetting properties by exploring the surface microstructures of plants and animals such as lotus leaf and nepenthes pitcher, exhibiting excellent corrosion-resistant performance. This article summarizes the research progress on corrosion resistance of magnesium alloys with bio-inspired water-repellent properties in recent years. It mainly introduces the corrosion reasons, types of corrosion of magnesium alloys, and the preparation of magnesium alloys with bio-inspired water-repellent properties to improve corrosion resistance. In particular, it is widely used and effective to construct water-repellent and anti-corrosion coating on the surface of magnesium alloy by surface treatment. It is hoped that the research in this review can broaden the application range of magnesium alloys and provide a powerful reference for the future research on corrosion resistance of magnesium alloys.

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“…In the discharge process, oxygen was reduced at the air electrode and the Mg anode was oxidized to Mg 2+ . Meanwhile, as the PAM hydrogel and PEO gel were Alloying: Mg-Al-Zn, [17] Mg-Al-Zn-Sm, [17] Mg-Al-La, [18] Mg-Al-Mn-Ca, [16] and Mg-Zn-Y; [21] optimized electrolyte: graphene [19] and agar/graphene gel; [20] catalyst: Fe-Nx-C, [12] mullite [15] and SmMn 2 O 4.8 . [27] Angewandte Chemie Zuschriften 15448 www.angewandte.de Cl À ions conductive, [37] the Cl À ions were migrated through the dual-layer gel electrolyte to the anode driven by potential difference.…”

Section: Angewandte Chemiementioning

confidence: 99%

High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

Chen

et al. 2021

Angewandte Chemie

View full text Add to dashboard Cite

Mg‐air batteries are explored as the next‐generation power systems for wearable and implantable electronics as they could work stably in neutral electrolytes and are also biocompatible. However, high corrosion rate and low utilization of Mg anode largely impair the performance of Mg‐air battery with low discharge voltage, poor specific capacity and low energy density. Here, to the best of our knowledge, we first report a dual‐layer gel electrolyte to simultaneously solve the above two problems by preventing the corrosion of Mg anode and the production of dense passive layer, respectively. The resulting Mg‐air batteries produced an average specific capacity of 2190 mAh g−1 based on the total Mg anode (99.3 % utilization rate of Mg anode) and energy density of 2282 Wh kg−1 based on the total anode and air electrode, both of which are the highest among the reported Mg‐air batteries. Besides, our Mg‐air batteries could be made into a fiber shape, and they were flexible to work stably under various deformations such as bending and twisting.

show abstract

The quasicrystal of Mg–Zn–Y on discharge and electrochemical behaviors as the anode for Mg-air battery

Cited by 102 publications

References 34 publications

High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

Research Progress on Corrosion Resistance of Magnesium Alloys with Bio-inspired Water-repellent Properties: A Review

High‐Energy‐Density Magnesium‐Air Battery Based on Dual‐Layer Gel Electrolyte

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