AI Article Synopsis
- A novel anode material for rechargeable magnesium batteries (RMBs) was created, featuring a core-shell structure of gallium (Ga) encapsulated by reduced graphene oxide (rGO).
- The Ga@rGO anode exhibits impressive performance, achieving a specific capacity of 150 mAh/g at 0.5 A/g for 1200 cycles at room temperature and 100 mAh/g at 1 A/g for 700 cycles at 40 °C.
- Utilizing a cost-effective and eco-friendly direct drop coating method, the anode demonstrates not only high cycling stability and rate performance but also a self-healing ability even under extreme charging conditions, making it a promising candidate for advanced RMB technologies.
Article Abstract
In this work, a self-healable, high-stability anode material for rechargeable magnesium batteries (RMBs) has been developed by introducing a core-shell structure of Ga confined by reduced graphene oxide (Ga@rGO). this Ga@rGO anode, a specific capacity of 150 mAh g at a current of 0.5 A g stable up to 1200 cycles at room temperature and a specific capacity of 100 mAh g under an ultrahigh current of 1 A g stable up to 700 cycles at a slightly elevated temperature of 40 °C have been achieved. Additionally, the ultrahigh rate, high-cycling stability, and long-cycle life of the anode are attributed to the stabilized structure; such a low-cost, simple, and environmentally friendly direct drop coating (DDC) method is developed to maximize the original state of the active materials. Remarkably, the self-healing ability of anodes is still presented under the ultrahigh charging current. This anode is promising for the development of high rate and high stability RMBs.
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| http://dx.doi.org/10.1021/acs.nanolett.4c01638 | DOI Listing |
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