Enhanced stability of sodium anodes by amino-functioned macroporous two-dimensional nanodiamond coated polypropylene separators

Li, Aijiao; Wang, Hui; Liu, Xiaobing; Shen, Weixia; Fang, Chao; Zhang, Zhuangfei; Zhang, Yuewen; Chen, Liangchao; Wang, Qianqian; Wan, Biao; Wang, Ye; Shan, Chongxin

doi:10.1016/j.cej.2024.151914

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.151914

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Enhanced stability of sodium anodes by amino-functioned macroporous two-dimensional nanodiamond coated polypropylene separators

Aijiao Li,

Hui Wang,

Xiaobing Liu

et al.

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2024

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Cited by 2 publications

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Sodiophilic Zn‐Diamane Ion Rectification Layer Modulated Polypropylene Separators Enable Dendrite‐Free Sodium Metal Batteries

Shen,

Dai,

Zhou

et al. 2024

Adv Funct Materials

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Sodium (Na) metal is regarded as an ideal anode for sodium metal batteries (SMBs) due to its high theoretical specific capacity and low electrochemical potential. However, its utilization is still restricted by the notorious dendrites and unstable solid electrolyte interface (SEI). Herein, a zinc nanoparticle decorated 2D diamond (diamane) modulated commercial polypropylene (Zn‐diamane/PP) separator is dedicated to mitigating these issues for the longevity of sodium metal anodes. Interestingly, the sodiophilic Zn‐diamane/PP separator significantly accelerates the sodium ion mobilization and promotes a uniform flux, thus effectively preventing dendrite growth and enhancing the stability of the SEI layer. A Na||Na symmetric cell with Zn‐diamane/PP separator demonstrates a prolonged lifespan exceeding 5000 h at 1 mA cm−2 with 1 mAh cm−2. Notably, it sustains stability for >1000 h at an ultra‐high current density at 25 mA cm−2 with 1 mAh cm−2. The dendrite‐free deposition morphology and the formation of an inorganic‐rich inner SEI layer have been investigated through comprehensive characterizations and theoretical calculations analysis. Furthermore, a full cell comprising a Na3V2(PO4)3@C cathode, Zn‐diamane/PP separator, and Na metal anode demonstrate a high reversible capacity of 90 mAh g−1 over 500 cycles. These results demonstrate the potential of Zn‐diamane/PP separator for long‐cycle lifespan SMBs.

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Sodiophilic Zn‐Diamane Ion Rectification Layer Modulated Polypropylene Separators Enable Dendrite‐Free Sodium Metal Batteries

Shen,

Dai,

Zhou

et al. 2024

Adv Funct Materials

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Electrospun nanofiber surface-modified polyethylene separator for enhanced cycling stability and low-temperature performance of sodium-ion batteries

Li,

Liu,

Han

et al. 2024

Chemical Engineering Journal

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Enhanced stability of sodium anodes by amino-functioned macroporous two-dimensional nanodiamond coated polypropylene separators

Cited by 2 publications

References 74 publications

Sodiophilic Zn‐Diamane Ion Rectification Layer Modulated Polypropylene Separators Enable Dendrite‐Free Sodium Metal Batteries

Sodiophilic Zn‐Diamane Ion Rectification Layer Modulated Polypropylene Separators Enable Dendrite‐Free Sodium Metal Batteries

Electrospun nanofiber surface-modified polyethylene separator for enhanced cycling stability and low-temperature performance of sodium-ion batteries

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