title: Multilayered Electride Ca2N Electrode via Compression Molding Fabrication for Sodium Ion Batteries.
abstract: Pursuing for novel electrode materials is significant for the progress of sodium ion batteries (SIBs). Here, a multilayered electride prepared by simple thermal decomposition of solid Ca3N2, namely Ca2N, is introduced as a new anode material of SIBs for the first time, and a compression molding electrode fabricated by pressing Ca2N powder into nickel foam is applied to protect Ca2N from trace moisture and oxygen. The as-prepared electrode delivers an initial discharge capacity of 1110.5 mAh g-1and a reversible discharge capacity of ∼320 mAh g-1. These results suggest that Ca2N has a great potential for sodium ion batteries.
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Guanghai
authors.initials: G
authors.lastname: Chen
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Bai
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Li
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Zhaohua
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Qiao
authors.initials: Q
authors.lastname: Ni
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Liu
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.|Collaborative Innovation Center of Electric Vehicles in Beijing , Beijing 100081, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
authors.affiliation: Beijing Key Laboratory of Nanophotonics and Ultrane Optoelectronic Systems, School of Physics, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Yugui
authors.initials: Y
authors.lastname: Yao
authors.affiliation: Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.|Collaborative Innovation Center of Electric Vehicles in Beijing , Beijing 100081, China.
authors.forename: Chuan
authors.identifier: http://orcid.org/0000-0003-3878-179X
authors.initials: C
authors.lastname: Wu
keywords: Ca2N; anode; electride; multilayered; sodium ion batteries