Sodium ion battery

In this work, we were successfully synthesized Na2Ti3O7 material by solid state reaction method which used NaOH and TiO2 as the precursors. Structural and morphological characterization of synthesized materials were confirmed by X-ray diffraction (XRD) and scanning electron microscopy (SEM).

10p viengels 25-08-2023 5 3   Download

In this article, zinc-doped sodium manganese oxide (NZMC) was synthesized by a conventional solid-state reaction method. Structure and morphology of the NZMC material were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energydispersive X-ray spectroscopy (EDS).

10p viengels 25-08-2023 9 3   Download

In this work, NaNi0.5Ti0.5O2 cathode materials of sodium ion batteries were synthesized by a pre-milling combined with solid-state reaction method using sodium hydroxide (NaOH), nickel (II) acetate (2(CH3COO)Ni.4H2O), and titanium dioxide (TiO2) as the precursors.

8p viberkshire 09-08-2023 6 4   Download

Based on the density functional theory, we propose a promising cathode material, Na2Fe3(SO4)4, applicable for sodium-ion batteries. The crystal structure, stability, average voltage, and diffusion mechanism are carefully investigated to evaluate the electrochemical properties.

9p vispiderman 15-06-2023 3 2   Download

The reliable candidates for practical Na-ion batteries can be found among various layered structure sodium transition metal oxides because of the high working voltage and high specific capacity. However, hard carbon anode remains an obstacle to increasing the energy density of the cell because of its high irreversible capacity.

13p vidudley 20-02-2023 4 2   Download

Lithium (Li) is the lightest metal, has unique physicochemical properties and is the main component of lithium-ion batteries. Rechargeable lithium-ion batteries play a very important role in maximizing the performance of electric devices and vehicles. It is predicted that the metal and mineral demand for lithium-ion batteries will increase 56 times by 2050. In order to meet the increasing demand, in addition to known methods, lithium recovery from geothermal waters has become a very popular research subject.

13p tanmocphong 29-01-2022 23 2   Download

Nitrogen-doped porous hard carbons are synthesized by hydrothermal carbonization method (HTC) using glucosamine as biosource and treated at different carbonization temperatures in nitrogen environment (500, 750, 1000°C). The electrochemical performances of hard carbons electrode materials for aqueous electrolyte sodium ion batteries are examined to observe the effect of two different voltage ranges (–0.8-0.0) V and (0.0-0.8) V in 1.0 M Na2SO4 aqueous electrolyte.

13p langthannam 29-12-2021 9 0   Download

Ionic liquids (ILs) have been considered as an alternative class of electrolytes compared to conventional carbonate solvents in rechargeable lithium/sodium batteries. However, the drawbacks of ILs are their reducing ionic conductivity and their large viscosity. Therefore, mixtures of alkyl carbonate solvents with an IL and a sodium bis(trifluoromethane sulfonyl)imide (NaTFSI) have been investigated to develop new electrolytes for sodium-ion batteries.

10p nguaconbaynhay11 16-04-2021 11 1   Download

In this work, O3-NaFe0.5Co0.5O2 layered cathode material was synthesized by solid state reaction at 900 oC followed by a quenching step at 600 oC in argon atmosphere. X-rays diffraction patterns indicated that O3-layered structure could be maintained after a quenching process at 600 oC. The chemical composition and morphology of the synthesized material were analyzed by Atomic Absorption Spectroscopy (AAS) and Scanning Electron Microscopy (SEM).

9p abcxyz123_02 03-03-2020 12 0   Download

Sulfolane (SL), having an edge of low melting point over other sulfones, has been adopted as an electrolyte co-solvent for lithium-ion battery (LIB), as it exhibits high stability against oxidation and combustion while not causing much side effects to the battery electrochemistry.

8p viminotaur2711 29-10-2019 16 0   Download

Polymers acting as both an electrolyte and a separator are of tremendous interest because of their many virtues, such as no leakage, flexible geometry, excellent safe performance, and good compatibility with electrodes, compared with their liquid counterparts.

11p viminotaur2711 29-10-2019 11 1   Download

In this articles, Fe2(MoO4)3 was prepared by precipitation method and used as cathode materials for sodium-ion batteries. The crystalline structure of the sample was characterized by a powder X-ray diffraction spectroscopy (XRD), the morphologies of the sample were observed by the field emission scanning electron microscopy (SEM), the binding state of elements in sample was analyzed by X-ray photoelectron spectroscopy (XPS).

5p giesumanh 04-11-2018 17 0   Download

Sodium manganese oxide (NaxMnO2) has attracted much attention as cathode materials for alkaline ion battery due to the ability of the fast charge and discharge of Na+, in particular in nanoscale. We report on the synthesis of NaxMnO2 nanowires via hydrothermal synthesis route from Mn2O3 and NaOH solution. The morphological observation indicates that the obtained Na0.44MnO2nanowires with diameters of about 20 nm -30 nm, length up to several micrometers were formed by this process.

6p thuyliebe 09-10-2018 31 0   Download

The first charge and discharge capacities of Na0.44MnO2 cathode, at 0.1 C between 2.0-4.0 V, are 66.2 mAh g−1 and 62.7 mAh g −1 , respectively. The Na0.44MnO2 has excellent cycle stability with 85.3% of capacity retention over 50 cycles. The coulombic efficiency of Na0.44MnO2 material is approximately 90% after 70 cycles. It is suggested that the structure of Na0.44MnO2 is stable during cycling and Na0.44MnO2 can be a promising cathode material for sodium ion batteries.

7p thuyliebe 08-10-2018 19 0   Download

Introduction: The ceramic oxide known as ‘beta alumina’ exhibits remarkably high conductivity of sodium ions and, as a consequence, has been adopted as a key component in batteries that employ liquid sodium as the active material at the negative electrode. Most rechargeable (or ‘secondary’) batteries comprise solid electrodes and a liquid electrolyte. A separator is placed in the electrolyte between the plates to prevent a short circuit.

19p congdat261 06-12-2010 97 11   Download

During development of an undivided flow battery based on the Pb(II)/Pb and PbO2 /Pb(II) couples in aqueous methanesulfonic acid, it was noted that battery performance might be improved by additives that (i) decrease the roughness of the lead deposit at the negative electrode and (ii) enhance the kinetics of the Pb(II)/PbO2 couple at the positive electrode. This paper reports the study of sodium ligninsulfonate and polyethylene glycol as potential levelling agents for lead and of three inorganic ions as possible catalysts for the Pb(II)/PbO2 couple. ...

9p congdat261 19-11-2010 93 5   Download