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-1 and a reversible discharge capacity of ∼320 mAh g-1. These results suggest that Ca2N has a great potential for sodium ion batteries.
Original language | English |
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Pages (from-to) | 6666-6669 |
Number of pages | 4 |
Journal | ACS applied materials & interfaces |
Volume | 9 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Mar 2017 |
Keywords
- CaN
- anode
- electride
- multilayered
- sodium ion batteries