Next Article in Journal
Considerations when Modelling EV Battery Circularity Systems
Previous Article in Journal
Segmented Printed Circuit Board Electrode for Locally-Resolved Current Density Measurements in All-Vanadium Redox Flow Batteries
Open AccessArticle

Effect of Mixed Li+/Na+-ion Electrolyte on Electrochemical Performance of Na4Fe3(PO4)2P2O7 in Hybrid Batteries

Institute of Solid State Chemistry and Mechanochemistry SB RAS, 18 Kutateladze, 630128 Novosibirsk, Russia
*
Author to whom correspondence should be addressed.
Batteries 2019, 5(2), 39; https://doi.org/10.3390/batteries5020039
Received: 14 March 2019 / Revised: 2 April 2019 / Accepted: 4 April 2019 / Published: 11 April 2019
(This article belongs to the Special Issue Advanced Hybrid-Ion Batteries)
The mixed sodium-iron ortho-pyrophosphate Na4Fe3(PO4)2P2O7 (NFPP) is a promising Na-containing cathode material with the highest operating voltage among sodium framework structured materials. It operates both in Na and Li electrochemical cells. When cycled in a hybrid Li/Na cell, a competitive co-intercalation of the Li+ and Na+ ions occurs at the cathode side. The present study shows that this process can be tuned by changing the concentration of the Na+ ions in the mixed Li+/Na+-ion electrolyte and current density. It is shown that if the Na concentration in the electrolyte increases, the specific capacity of NFPP also increases and its high-rate capability is significantly improved. View Full-Text
Keywords: Na4Fe3(PO4)2P2O7; hybrid Li/Na cell; mixed Li+/Na+-ion electrolyte; cycling Na4Fe3(PO4)2P2O7; hybrid Li/Na cell; mixed Li+/Na+-ion electrolyte; cycling
Show Figures

Figure 1

MDPI and ACS Style

Kosova, N.V.; Shindrov, A.A. Effect of Mixed Li+/Na+-ion Electrolyte on Electrochemical Performance of Na4Fe3(PO4)2P2O7 in Hybrid Batteries. Batteries 2019, 5, 39.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop