skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Li 3VP 3O 9N as a Multielectron Redox Cathode for Li-Ion Battery

Abstract

Li 3VP 3O 9N was for the first time synthesized from its sodium analogue Na 3VP 3O 9N using a solid–solid Li +/Na + ion-exchange method. This lithium variant of nitridophosphate is found to possess similar crystal structure (space group P2 13) as its sodium analogue Na 3VP 3O 9N (a = 9.4507(1) Å) but with much smaller lattice parameter (a = 9.1237(1) Å). The crystal structure of Li 3VP 3O 9N was solved and refined using combined synchrotron X-ray and time-of-flight neutron powder diffraction data, allowing the three distinct lithium-ion sites to be identified. A lithium bond valence sum difference map calculation suggests the existence of isotropic three-dimensional lithium-ion-conducting pathways with a minimum valence threshold |ΔV| of 0.02. Li 3VP 3O 9N behaves as a promising reversible cathode material for rechargeable lithium-ion batteries with an average V 3+/V 4+ redox potential of 3.8 V (vs Li +/Li). Both cyclic voltammetry tests and chemical delithiation (using NO 2BF 4) indicate it is possible to partially remove the second lithium from the structure, though only at very high potentials (>4.9 V vs Li +/Li). It is also found that the unit cell volume of this compound expands instead of shrinking uponmore » lithium removal, a rare phenomenon for polyanion-based cathodes. This abnormal volume expansion is found to be associated with the drastic expansion of the Li1(O1) 3N tetrahedral site after removing lithium from this site.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
  2. Stony Brook Univ., NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1469792
Report Number(s):
BNL-209033-2018-JAAM
Journal ID: ISSN 0897-4756
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 14; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Liu, Jue, Yin, Liang, Yang, Xiao-Qing, and Khalifah, Peter G. Li3VP3O9N as a Multielectron Redox Cathode for Li-Ion Battery. United States: N. p., 2018. Web. doi:10.1021/acs.chemmater.8b01114.
Liu, Jue, Yin, Liang, Yang, Xiao-Qing, & Khalifah, Peter G. Li3VP3O9N as a Multielectron Redox Cathode for Li-Ion Battery. United States. doi:10.1021/acs.chemmater.8b01114.
Liu, Jue, Yin, Liang, Yang, Xiao-Qing, and Khalifah, Peter G. Wed . "Li3VP3O9N as a Multielectron Redox Cathode for Li-Ion Battery". United States. doi:10.1021/acs.chemmater.8b01114. https://www.osti.gov/servlets/purl/1469792.
@article{osti_1469792,
title = {Li3VP3O9N as a Multielectron Redox Cathode for Li-Ion Battery},
author = {Liu, Jue and Yin, Liang and Yang, Xiao-Qing and Khalifah, Peter G.},
abstractNote = {Li3VP3O9N was for the first time synthesized from its sodium analogue Na3VP3O9N using a solid–solid Li+/Na+ ion-exchange method. This lithium variant of nitridophosphate is found to possess similar crystal structure (space group P213) as its sodium analogue Na3VP3O9N (a = 9.4507(1) Å) but with much smaller lattice parameter (a = 9.1237(1) Å). The crystal structure of Li3VP3O9N was solved and refined using combined synchrotron X-ray and time-of-flight neutron powder diffraction data, allowing the three distinct lithium-ion sites to be identified. A lithium bond valence sum difference map calculation suggests the existence of isotropic three-dimensional lithium-ion-conducting pathways with a minimum valence threshold |ΔV| of 0.02. Li3VP3O9N behaves as a promising reversible cathode material for rechargeable lithium-ion batteries with an average V3+/V4+ redox potential of 3.8 V (vs Li+/Li). Both cyclic voltammetry tests and chemical delithiation (using NO2BF4) indicate it is possible to partially remove the second lithium from the structure, though only at very high potentials (>4.9 V vs Li+/Li). It is also found that the unit cell volume of this compound expands instead of shrinking upon lithium removal, a rare phenomenon for polyanion-based cathodes. This abnormal volume expansion is found to be associated with the drastic expansion of the Li1(O1)3N tetrahedral site after removing lithium from this site.},
doi = {10.1021/acs.chemmater.8b01114},
journal = {Chemistry of Materials},
number = 14,
volume = 30,
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referencing / citing this record:

CSD 1860616: Experimental Crystal Structure Determination: Non-CSD Structure
dataset, August 2018


CSD 1860617: Experimental Crystal Structure Determination: Non-CSD Structure
dataset, August 2018