Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries
Abstract
All-solid-state batteries show great potential for achieving high energy density with less safety problems; however, (electro)chemical issues at the solid electrolyte/electrode interface may severely limit their performance. In this work, the electrochemical stability and chemical reactivity of a wide range of potential Na solid-state electrolyte chemistries were investigated using density functional theory calculations. In general, lower voltage limits are predicted for both the reduction and oxidation of Na compounds compared with those of their Li counterparts. The lower reduction limits for the Na compounds indicate their enhanced cathodic stability as well as the possibility of stable sodium metal cycling against a number of oxides and borohydrides. With increasing Na content (or chemical potential), improved cathodic stability but also reduced anodic stability are observed. An increase in the oxidation voltage is shown for Na polyanion systems, including borohydrides, NaSICON-type oxides, and aluminates, due to the covalent stabilization of the anions. In addition, the oxides exhibit remarkable chemical stability when in contact with various cathode materials (layered transition metal oxides and fluorophosphates), whereas the chalcogenides predictably display narrow electrochemical windows and high chemical reactivity. Our findings indicate some promising candidates for solid-state conductors and/or protective coating materials to enable the operation ofmore »
- Authors:
-
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Samsung Research America, Burlington, MA (United States)
- Univ. of Michigan—Shanghai Jiao Tong Univ. Joint Inst., Shanghai (China)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1571994
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Materials Chemistry. A
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 14; Journal ID: ISSN 2050-7488
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Lacivita, Valentina, Wang, Yan, Bo, Shou -Hang, and Ceder, Gerbrand. Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries. United States: N. p., 2019.
Web. doi:10.1039/c8ta10498k.
Lacivita, Valentina, Wang, Yan, Bo, Shou -Hang, & Ceder, Gerbrand. Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries. United States. https://doi.org/10.1039/c8ta10498k
Lacivita, Valentina, Wang, Yan, Bo, Shou -Hang, and Ceder, Gerbrand. Mon .
"Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries". United States. https://doi.org/10.1039/c8ta10498k. https://www.osti.gov/servlets/purl/1571994.
@article{osti_1571994,
title = {Ab initio investigation of the stability of electrolyte/electrode interfaces in all-solid-state Na batteries},
author = {Lacivita, Valentina and Wang, Yan and Bo, Shou -Hang and Ceder, Gerbrand},
abstractNote = {All-solid-state batteries show great potential for achieving high energy density with less safety problems; however, (electro)chemical issues at the solid electrolyte/electrode interface may severely limit their performance. In this work, the electrochemical stability and chemical reactivity of a wide range of potential Na solid-state electrolyte chemistries were investigated using density functional theory calculations. In general, lower voltage limits are predicted for both the reduction and oxidation of Na compounds compared with those of their Li counterparts. The lower reduction limits for the Na compounds indicate their enhanced cathodic stability as well as the possibility of stable sodium metal cycling against a number of oxides and borohydrides. With increasing Na content (or chemical potential), improved cathodic stability but also reduced anodic stability are observed. An increase in the oxidation voltage is shown for Na polyanion systems, including borohydrides, NaSICON-type oxides, and aluminates, due to the covalent stabilization of the anions. In addition, the oxides exhibit remarkable chemical stability when in contact with various cathode materials (layered transition metal oxides and fluorophosphates), whereas the chalcogenides predictably display narrow electrochemical windows and high chemical reactivity. Our findings indicate some promising candidates for solid-state conductors and/or protective coating materials to enable the operation of high-energy-density all-solid-state Na batteries.},
doi = {10.1039/c8ta10498k},
journal = {Journal of Materials Chemistry. A},
number = 14,
volume = 7,
place = {United States},
year = {2019},
month = {2}
}
Web of Science
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