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Title: Higher energy and safer sodium ion batteries via an electrochemically made disordered Na3V2(PO4)2F3 material

Journal Article · · Nature Communications
 [1];  [1];  [2];  [3];  [4];  [5];  [1];  [6];  [2]
  1. Collège de France, Paris (France). Solid-Energy Chemistry; Research Network on Electrochemical Energy Storage (RS2E), Amiens (France)
  2. Collège de France, Paris (France). Solid-Energy Chemistry; Research Network on Electrochemical Energy Storage (RS2E), Amiens (France); Sorbonne Univ., Paris (France)
  3. Collège de France, Paris (France). Solid-Energy Chemistry
  4. Research Network on Electrochemical Energy Storage (RS2E), Amiens (France); Univ. of Orléans (France)
  5. Univ. of Picardie Jules Verne, Amiens (France)
  6. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source
+ Show Author Affiliations

The growing need to store an increasing amount of renewable energy in a sustainable way has rekindled interest for sodium-ion battery technology, owing to the natural abundance of sodium. Presently, sodium-ion batteries based on Na3V2(PO4)2F3/C are the subject of intense research focused on improving the energy density by harnessing the third sodium, which has so far been reported to be electrochemically inaccessible. Here, we are able to trigger the activity of the third sodium electrochemically via the formation of a disordered NaxV2(PO4)2F3 phase of tetragonal symmetry (I4/mmm space group). This phase can reversibly uptake 3 sodium ions per formula unit over the 1 to 4.8 V voltage range, with the last one being re-inserted at 1.6 V vs Na+/Na0. We track the sodium-driven structural/charge compensation mechanism associated to the new phase and find that it remains disordered on cycling while its average vanadium oxidation state varies from 3 to 4.5. Full sodium-ion cells based on this phase as positive electrode and carbon as negative electrode show a 10–20% increase in the overall energy density.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); College de France, Paris (France); Research Network on Electrochemical Energy Storage (RS2E), Amiens (France)
Sponsoring Organization:
USDOE Office of Science (SC); European Research Council (ERC); National Center for Scientific Research (CNRS) (France)
Grant/Contract Number:
AC02-06CH11357; 670116-ARPEMA
OSTI ID:
1505146
Journal Information:
Nature Communications, Vol. 10; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 169 works
Citation information provided by
Web of Science

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Cited By (15)

Vanadium‐Based Nanomaterials: A Promising Family for Emerging Metal‐Ion Batteries journal January 2020
Three Electron Reversible Redox Reaction in Sodium Vanadium Chromium Phosphate as a High‐Energy‐Density Cathode for Sodium‐Ion Batteries journal January 2020
Reaching the Energy Density Limit of Layered O3‐NaNi 0.5 Mn 0.5 O 2 Electrodes via Dual Cu and Ti Substitution journal August 2019
Development and Investigation of a NASICON‐Type High‐Voltage Cathode Material for High‐Power Sodium‐Ion Batteries journal December 2019
Development and Investigation of a NASICON‐Type High‐Voltage Cathode Material for High‐Power Sodium‐Ion Batteries journal February 2020
Understanding Challenges of Cathode Materials for Sodium‐Ion Batteries using Synchrotron‐Based X‐Ray Absorption Spectroscopy journal July 2019
Nitrogen‐Doped Hard Carbon on Nickel Foam as Free‐Standing Anodes for High‐Performance Sodium‐Ion Batteries journal December 2019
Highly Electrochemically‐Reversible Mesoporous Na 2 FePO 4 F/C as Cathode Material for High‐Performance Sodium‐Ion Batteries journal October 2019
Aluminum substitution for vanadium in the Na 3 V 2 (PO 4 ) 2 F 3 and Na 3 V 2 (PO 4 ) 2 FO 2 type materials journal January 2019
Advances in sodium secondary batteries utilizing ionic liquid electrolytes journal January 2019
A black phosphorus/Ti 3 C 2 MXene nanocomposite for sodium-ion batteries: a combined experimental and theoretical study journal January 2019
High-performance sodium-ion batteries with a hard carbon anode: transition from the half-cell to full-cell perspective journal January 2019
An alkali metal–selenium battery with a wide temperature range and low self-discharge journal January 2019
Emerging polyanionic and organic compounds for high energy density, non-aqueous potassium-ion batteries journal January 2020
Reversible structural evolution of sodium-rich rhombohedral Prussian blue for sodium-ion batteries journal February 2020

Figures / Tables (8)

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