@article{b01a19ff58494bc2acd6aec959b0d417,
title = "A quaternary sodium superionic conductor - Na10.8Sn1.9PS11.8",
abstract = "Sulfide-based Na-ion conductors are promising candidates as solid-state electrolytes (SSEs) for fabrication of solid-state Na-ion batteries (NIBs) because of their high ionic conductivities and low grain boundary resistance. Currently, most of the sulfide-based Na-ion conductors with high conductivities are focused on Na3PS4 phases and its derivatives. It is desirable to develop Na-ion conductors with new composition and crystal structure to achieve superior ionic conductivities. Here we report a new quaternary Na-ion conductor, Na10.8Sn1.9PS11.8, exhibiting a high ionic conductivity of 0.67 mS cm−1 at 25 °C. This high ionic conductivity originates from the presence of a large number of intrinsic Na-vacancies and three-dimensional Na-ion conduction pathways, which has been confirmed by single-crystal X-ray diffraction and first-principles calculations. The Na10.8Sn1.9PS11.8 phase is further evaluated as an electrolyte in a Na-Sn alloy/TiS2 battery, demonstrating its potential application in all-solid-state NIBs.",
author = "Zhaoxin Yu and Shang, {Shun Li} and Yue Gao and Daiwei Wang and Xiaolin Li and Liu, {Zi Kui} and Donghai Wang",
note = "Funding Information: The authors acknowledge financial support from the U.S. Department of Energy's (DOE's) Office of Electricity Delivery & Energy Reliability (OE) (under Contract No. 70247 ), the National Science Foundation (NSF) with Grant No DMR-1610430 , and the Penn State 2017 ICS Seed Grant. First-principles calculations were carried out partially on the LION clusters at the Pennsylvania State University, partially on the resources of NERSC supported by the Office of Science of the U.S. DOE under contract no. DE- AC02-05CH11231 , and partially on the resources of XSEDE supported by NSF with Grant no. ACI-1053575 . Appendix A Funding Information: The authors acknowledge financial support from the U.S. Department of Energy's (DOE's) Office of Electricity Delivery & Energy Reliability (OE) (under Contract No. 70247), the National Science Foundation (NSF) with Grant No DMR-1610430, and the Penn State 2017 ICS Seed Grant. First-principles calculations were carried out partially on the LION clusters at the Pennsylvania State University, partially on the resources of NERSC supported by the Office of Science of the U.S. DOE under contract no. DE-AC02-05CH11231, and partially on the resources of XSEDE supported by NSF with Grant no. ACI-1053575. Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",
year = "2018",
month = may,
doi = "10.1016/j.nanoen.2018.01.046",
language = "English (US)",
volume = "47",
pages = "325--330",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",
}
