High-capacity, fast-charging and long-life magnesium/black phosphorous composite negative electrode for non-aqueous magnesium battery
Secondary non-aqueous magnesium-based batteries are a promising candidate for post-lithium-ion battery technologies. However, the uneven Mg plating behavior at the negative electrode leads to high overpotential and short cycle life. Here, to circumvent these issues, we report the preparation of a magnesium/black phosphorus (Mg@BP) composite and its use as a negative electrode for non-aqueous magnesium-based batteries. Via in situ and ex situ physicochemical measurements, we demonstrate that Mg ions are initially intercalated in black phosphorus two-dimensional structures, forming chemically stable Mg<sub>x</sub>P intermediates. After the formation of the intermediates, Mg electrodeposition reaction became the predominant. When tested in the asymmetric coin cell configuration, the Mg@BP composite electrode allowed stable stripping/plating performances for 1600 h (800 cycles), a cumulative capacity of 3200 mAh cm<sup>-2</sup>, and a Coulombic efficiency of 99.98%. Assembly and testing of the Mg@BP | |nano-CuS coin cell enabled a discharge capacity of 398 mAh g<sup>-1</sup> and an average cell discharge potential of about 1.15 V at a specific current of 560 mA g<sup>-1</sup> with a low decay rate of 0.016% per cycle for 225 cycles at 25 °C.
Authors
- Qiannan Zhao (ORCID: https://orcid.org/0000-0001-8906-8113)
- Jilei Liu (ORCID: https://orcid.org/0000-0003-0571-323X)
- Yue Ma (ORCID: https://orcid.org/0000-0002-1005-9386)
- Jong‐Beom Baek (ORCID: https://orcid.org/0000-0003-4785-2326)
- Ronghua Wang (ORCID: https://orcid.org/0000-0003-3968-8212)
- Chaohe Xu (ORCID: https://orcid.org/0000-0002-1345-1420)
- Zhongting Wang (ORCID: https://orcid.org/0000-0003-1452-2021)
- Ming Yang Huang (ORCID: https://orcid.org/0000-0002-9188-4619)
- Gao‐Feng Han (ORCID: https://orcid.org/0000-0001-5943-0492)
- Fusheng Pan (ORCID: https://orcid.org/0000-0002-4941-1295)
- Kaiqi Zhao
- Zhou Wang (ORCID: https://orcid.org/0000-0001-6538-3995)
- Zhiqiao Wang (ORCID: https://orcid.org/0000-0001-9509-8714)
- Guangsheng Huang (ORCID: https://orcid.org/0000-0002-7379-6893)
- Jingfeng Wang
Institutions
- University of Electronic Science and Technology of China (CN)
- Chongqing University (CN)
- Hunan University (CN)
- Northwestern Polytechnical University (CN)
- Jilin University (CN)
- Chongqing 2D Materials Institute (China) (CN)
- Ulsan National Institute of Science and Technology (KR)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-10-07
- DOI
- https://doi.org/10.1038/s41467-024-52949-4
- Citations
- 33
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 6.89
Funders
- National Research Foundation
- National Natural Science Foundation of China
- Chongqing University
- National Research Foundation of Korea
- China Scholarship Council
- Centre Scientifique et Technique du Bâtiment
- Fundamental Research Funds for the Central Universities