Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries

doi:10.11944/j.issn.1000-0518.2018.03.170425

Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (3): 366-368.DOI: 10.11944/j.issn.1000-0518.2018.03.170425

• Communications • Previous Articles

Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries

CHEN Guanghai^a,BAI Ying^a,WU Feng^a^b,WU Chuan^a^b^*()

^aBeijing Key Laboratory of Environmental Science and Engineering,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China
^b Collaborative Innovation Center of Electric Vehicles in Beijing,Beijing 100081,China

Received:2017-11-27 Accepted:2017-12-27 Published:2018-03-05 Online:2018-02-12
Contact: WU Chuan
Supported by:
Supported by the National Basic Research Program of China(973 project, No.2015CB251100)

Abstract

Abstract:

Two-dimensional layered Ca₂N was synthesized via a pyrolysis method with Ca₃N₂ precursor. The component, structure and morphology of Ca₂N were characterized by X-ray diffraction and scanning electron microscope. As a novel anode material of sodium ion batteries, the initial discharge capacity is up to 584 mA·h/g and the reversible capacity is about 180 mA·h/g at a current density of 50 mA/g. Even at a high current density of 2000 mA/g, a capacity of 70 mA·h/g can be retained.

Key words: dicalcium nitride, two-dimensional layered structure, sodium ion batteries, anode material

CHEN Guanghai, BAI Ying, WU Feng, WU Chuan. Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries[J]. Chinese Journal of Applied Chemistry, 2018, 35(3): 366-368.

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Two-Dimensional Layered Dicalcium Nitride as Anode Material for Sodium Ion Batteries

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