Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (3): 0-0.

• Cover Picture •     Next Articles

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

CHEN Guanghaia,BAI Yinga,WU Fengab,WU Chuanab*()   

  1. 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 Published:2018-03-05 Online:2018-02-24
  • Contact: WU Chuan
  • Supported by:
    Supported by the National Basic Research Program of China(973 project, No.2015CB251100)

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