Special Issue "Electrode Materials for High Performance Sodium-ion Batteries"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (31 May 2019).

Special Issue Editor

Prof. Dr. Yutaka Moritomo
Website
Guest Editor
Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, 305-8571, Japan
Interests: energy material; inorganic material; organic material
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

The sodium-ion secondary battery is a promising energy storage device at a low-cost. In order to create a high-performance and safe device, we should explore high-performance cathode and anode materials. To improve the rate and cycle properties of electrode materials, on the other hand, we first have to know what happens to them during charge and discharge processes. I believe that the advanced characterization, and in situ observations, are powerful tools for understanding the actual charge and discharge processes. In addition to the conventional experimental approaches for electrode materials, approaches based on the calculation are also welcome.

Prof. Dr. Yutaka Moritomo
Guest Editor

Manuscript Submission Information

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Keywords

  • cathode material
  • anode material
  • advanced characterization
  • in situ observation
  • calculation

Published Papers (5 papers)

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Research

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Open AccessArticle
Effects of F-Doping on the Electrochemical Performance of Na2Ti3O7 as an Anode for Sodium-Ion Batteries
Materials 2018, 11(11), 2206; https://doi.org/10.3390/ma11112206 - 07 Nov 2018
Cited by 6
Abstract
The effects of fluorine (F) doping on the phase, crystal structure, and electrochemical performance of Na2Ti3O7 are studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemical measurements. F-doping does not change the crystal structure of NTO, [...] Read more.
The effects of fluorine (F) doping on the phase, crystal structure, and electrochemical performance of Na2Ti3O7 are studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemical measurements. F-doping does not change the crystal structure of NTO, although it has an effect on the morphology of the resultant product. As an anode material for sodium-ion batteries, the specific capacity of Na2Ti3O7 exhibits a 30% increase with F-doping owing to the improved sodium ion diffusion coefficient. F-doped Na2Ti3O7 also displays an enhanced rate capability and favourable cycling performance for more than 800 cycles. Full article
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
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Open AccessArticle
High Capacity and High Efficiency Maple Tree-Biomass-Derived Hard Carbon as an Anode Material for Sodium-Ion Batteries
Materials 2018, 11(8), 1294; https://doi.org/10.3390/ma11081294 - 26 Jul 2018
Cited by 10
Abstract
Sodium-ion batteries (SIBs) are in the spotlight because of their potential use in large-scale energy storage devices due to the abundance and low cost of sodium-based materials. There are many SIB cathode materials under investigation but only a few candidate materials such as [...] Read more.
Sodium-ion batteries (SIBs) are in the spotlight because of their potential use in large-scale energy storage devices due to the abundance and low cost of sodium-based materials. There are many SIB cathode materials under investigation but only a few candidate materials such as carbon, oxides and alloys were proposed as anodes. Among these anode materials, hard carbon shows promising performances with low operating potential and relatively high specific capacity. Unfortunately, its low initial coulombic efficiency and high cost limit its commercial applications. In this study, low-cost maple tree-biomass-derived hard carbon is tested as the anode for sodium-ion batteries. The capacity of hard carbon prepared at 1400 °C (HC-1400) reaches 337 mAh/g at 0.1 C. The initial coulombic efficiency is up to 88.03% in Sodium trifluoromethanesulfonimide (NaTFSI)/Ethylene carbonate (EC): Diethyl carbonate (DEC) electrolyte. The capacity was maintained at 92.3% after 100 cycles at 0.5 C rates. The in situ X-ray diffraction (XRD) analysis showed that no peak shift occurred during charge/discharge, supporting a finding of no sodium ion intercalates in the nano-graphite layer. Its low cost, high capacity and high coulombic efficiency indicate that hard carbon is a promising anode material for sodium-ion batteries. Full article
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
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Open AccessFeature PaperCommunication
Redox Activity of Sodium Vanadium Oxides towards Oxidation in Na Ion Batteries
Materials 2018, 11(6), 1021; https://doi.org/10.3390/ma11061021 - 15 Jun 2018
Cited by 2
Abstract
The search for new materials that could be used as electrode material for Na-ion batteries is one of the most challenging issues of today. Many transition metal oxide families as well as transition metal polyanionic frameworks have been proposed over the last five [...] Read more.
The search for new materials that could be used as electrode material for Na-ion batteries is one of the most challenging issues of today. Many transition metal oxide families as well as transition metal polyanionic frameworks have been proposed over the last five years. In this work, we report the sodium extraction from Na2V3O7, which is a tunnel type structure built of [V3O7]2− nanotubes held by sodium ions. We report a reversible charge capacity of 80 mAh/g at 2.8 V vs. Na+/Na due to the V5+/V4+ redox activity. No oxygen redox activity has been observed for this material nor for the vanadium (5+) oxide Na4V2O7. Full article
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
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Review

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Open AccessReview
Electrode Materials for High-Performance Sodium-Ion Batteries
Materials 2019, 12(12), 1952; https://doi.org/10.3390/ma12121952 - 17 Jun 2019
Cited by 4
Abstract
Sodium ion batteries (SIBs) are being billed as an economical and environmental alternative to lithium ion batteries (LIBs), especially for medium and large-scale stationery and grid storage. However, SIBs suffer from lower capacities, energy density and cycle life performance. Therefore, in order to [...] Read more.
Sodium ion batteries (SIBs) are being billed as an economical and environmental alternative to lithium ion batteries (LIBs), especially for medium and large-scale stationery and grid storage. However, SIBs suffer from lower capacities, energy density and cycle life performance. Therefore, in order to be more efficient and feasible, novel high-performance electrodes for SIBs need to be developed and researched. This review aims to provide an exhaustive discussion about the state-of-the-art in novel high-performance anodes and cathodes being currently analyzed, and the variety of advantages they demonstrate in various critically important parameters, such as electronic conductivity, structural stability, cycle life, and reversibility. Full article
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
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Open AccessReview
Polymer Electrode Materials for Sodium-ion Batteries
Materials 2018, 11(12), 2567; https://doi.org/10.3390/ma11122567 - 17 Dec 2018
Cited by 7
Abstract
Sodium-ion batteries are promising alternative electrochemical energy storage devices due to the abundance of sodium resources. One of the challenges currently hindering the development of the sodium-ion battery technology is the lack of electrode materials suitable for reversibly storing/releasing sodium ions for a [...] Read more.
Sodium-ion batteries are promising alternative electrochemical energy storage devices due to the abundance of sodium resources. One of the challenges currently hindering the development of the sodium-ion battery technology is the lack of electrode materials suitable for reversibly storing/releasing sodium ions for a sufficiently long lifetime. Redox-active polymers provide opportunities for developing advanced electrode materials for sodium-ion batteries because of their structural diversity and flexibility, surface functionalities and tenability, and low cost. This review provides a short yet concise summary of recent developments in polymer electrode materials for sodium-ion batteries. Challenges facing polymer electrode materials for sodium-ion batteries are identified and analyzed. Strategies for improving polymer electrochemical performance are discussed. Future research perspectives in this important field are projected. Full article
(This article belongs to the Special Issue Electrode Materials for High Performance Sodium-ion Batteries)
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