About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
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Symposium
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12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
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Presentation Title |
Micro-alloying as a Novel Strategy for Developing High-performance Mg Anodes for Aqueous Mg-air Batteries |
Author(s) |
Min Deng, Linqian Wang, Daniel Hoeche, Sviatlana Lamaka, Pingli Jiang, Darya Snihirova, Nico Scharnagl, Mikhail Zheludkevich |
On-Site Speaker (Planned) |
Mikhail Zheludkevich |
Abstract Scope |
Aqueous Mg-air batteries can be used in many fields like as power sources for marine equipment and as biodegradable batteries for implantable bioelectronics. Nevertheless, the applications of aqueous Mg-air batteries are still limited due to unsatisfactory practical performance mainly related to anode surface blockage by Mg(OH)2/MgO precipitates and severe self-corrosion during discharge.
In the present work, we introduce micro-alloying as a novel strategy for developing high-performance Mg anodes. The preliminary results have demonstrated that lean binary Mg-Ca is a good anode material showing better discharge properties than high purity Mg and some commercial alloy anodes. Here we show that the Mg-Ca anode performance can be further enhanced via indium (In) micro-alloying. Mg-air battery exhibits simultaneously increased power and energy density adopting micro-alloyed Mg-Ca-In anodes. With addition of minor In, self-corrosion of the anode is suppressed and, at the meantime, chunk effect is limited. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |