High-Rate, Durable Sodium-Ion Battery Cathode Enabled by Carbon-Coated Micro-Sized Na < inf> 3 V < inf> 2 (PO < inf> 4 ) < inf> 3 Particles with Interconnected Vertical Nanowalls
Document Type
Article
Publication Date
5-6-2016
Department
Department of Materials Science and Engineering
Abstract
Na-ion batteries have been regarded as promising alternatives for Li-ion batteries due to the extensive sodium reserves in the world. Na3V2(PO4)3 has been proved to be a good candidate of the cathode materials in Na-ion batteries but the intrinsic low electrical conductivity and sluggish kinetics handicapped its application. Here, 3D hierarchical Na3V2(PO4)3 particles are synthesized by a facile hydrothermal method, constructed by carbon-coated 2D Na3V2(PO4)3 nanowalls. Superior cell performance of high rate capability and cycle stability are observed in the well-defined structure. As the cathode in Na-ion batteries, it delivers a high capacity almost reaching the theoretical one and exhibits high capacity retention. The enhanced rate capability and cycle performance can be attributed to the improved electrical conductivity from the interconnected carbon layer and the shortened ion diffusion length and high specific surface area from the nanowalls.
Publication Title
Advanced Materials Interfaces
Recommended Citation
Li, H.,
Bi, X.,
Bai, Y.,
Yuan, Y.,
Shahbazian-Yassar, R.,
Wu, C.,
Wu, F.,
Lu, J.,
&
Amine, K.
(2016).
High-Rate, Durable Sodium-Ion Battery Cathode Enabled by Carbon-Coated Micro-Sized Na < inf> 3 V < inf> 2 (PO < inf> 4 ) < inf> 3 Particles with Interconnected Vertical Nanowalls.
Advanced Materials Interfaces,
3(9).
http://doi.org/10.1002/admi.201500740
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/3452
Publisher's Statement
© 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Publisher’s version of record: https://doi.org/10.1002/admi.201500740