Mg2Sn alloy anode materials with high interfacial activity for chloride ion batteries

Yanzhi He, Tianchen Xia, Chang Zhang, Xiangyu Zhao

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

Magnesium has been regarded as an intriguing anode material for chloride ion batteries (CIB) because of its abundant resources, multi-electron reaction feature, and high volumetric capacity. However, the passivation of magnesium in the electrolyte and formation of insulating MgCl2 discharge product lead to poor reaction activity of magnesium anode in CIBs. Herein, the Mg2Sn alloy prepared by mechanical alloying of magnesium and tin powders is first developed as the anode material with enhanced interfacial activity in the CIB using a metal chloride cathode. The cathode exhibits a significant increase in the discharge capacity from 82 to 175 mAh g−1 when an Mg/carbon anode was replaced by the Mg2Sn alloy anode. The discharge capacity can be further increased to more than 200 mAh g−1 when the graphene nanoplatelet is incorporated in the Mg2Sn alloy by mechanical milling, thus demonstrating the highly active alloy anode for chloride ion storage. This strategy also benefits the improvement in the cycling performance of the magnesium anode.

源语言英语
页(从-至)3339-3346
页数8
期刊Journal of Solid State Electrochemistry
27
12
DOI
出版状态已出版 - 12月 2023

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