Open AccessNovel Solid-State Sodium-Ion Battery with Wide Band Gap NaTi2(PO4)3 Nanocrystal Electrolyte
Author(s) -
Hanqing Dai,
Wenqian Xu,
Zhe Hu,
Yuanyuan Chen,
Jing Gu,
Fengxian Xie,
Wei Wei,
Ruiqian Guo,
Guoqi Zhang
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c00664
Subject(s) - electrolyte , nanocrystal , anode , materials science , ion , sodium , battery (electricity) , fast ion conductor , analytical chemistry (journal) , chemical engineering , electrode , chemistry , nanotechnology , thermodynamics , chromatography , metallurgy , power (physics) , physics , organic chemistry , engineering
NaTi 2 (PO 4 ) 3 (NTP), a well-known anode material, could be used as a solid wide-band gap electrolyte. Herein, a novel solid-state sodium-ion battery (SSIB) with the thickness of electrolyte up to the millimeter level is proposed. The results of the difference in charge density investigated by the first-principles calculations imply that using the NTP nanocrystals as electrolytes to transport sodium ions is feasible. Moreover, the SSIB exhibits a high initial discharge capacity of 3250 mAh g -1 at the current density of 50 mA g -1 . As compared with other previously reported SSIBs, our results are better than those reported and suggest that the NTP nanocrystals have potential application in SSIBs as solid electrolytes.