| 초록 |
In this work, we report a flexible nanohybrid paper electrode comprising of multi-walled carbon nanotubes (MWCNTs) and indium sulfide (In2S3) nanoplates formed by a simple vacuum-assisted assembly and used for flexible sodium-ion battery anode. In2S3 nanoplates show a good distribution on MWCNTs, leading to a significant sodium ion storage capacity of the nanohybrid electrode, 410 mAh g−1 at a specific current of 50 mA g−1 over 100 charge/discharge cycles and ∼97% of rate-retention capability over the specific currents of 50 mA g−1 to 1 A g−1 for at least 50 charge/discharge cycles. A way of forming nanohybrid paper is important in overcoming the intrinsic complication of In2S3, such as the agglomeration of In2S3 into bulk form during assembly. The nanohybrid paper electrode is flexible and thus retains initial capacity under a mechanical deformation, providing the potential of the electrode for flexible energy storage. |
