Design and synthesis of a stable-performance P2-type layered cathode material for sodium ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55327-55330 ◽  
Author(s):  
Shuo Liu ◽  
Xiaolei Jiang ◽  
Junshu Zhang ◽  
Jian Yang ◽  
Yitai Qian

P2-type Na0.6Ni0.2Co0.2Mn0.5Ti0.1O2 powders are successfully synthesized by a solid state reaction. Ex situ XRD reveals the phase transition process occurs at 4.1 V.

2018 ◽  
Vol 281 ◽  
pp. 71-77 ◽  
Author(s):  
Qian Cheng Zhao ◽  
Xiao Hui Wang ◽  
Jin Yong Kim ◽  
Hui Zhang ◽  
Hui Ling Gong ◽  
...  

Sand-milling machine was firstly utilized to crush and disperse the raw materials. A homogenous and well-dispersed mixture of TiO2 and BaCO3 (<30nm) was obtained. The solid state reaction temperature can be reduced by 200°C for nanosized reactants compared with coarse ones. In order to increase tetragonality of nanosized BaTiO3, an innovative two-step calcination method, which includes solid state reaction process between reactants at a low temperature T1 and phase transition process at a high temperature T2, was subsequently adopted. The microstructure evolution of BaTiO3 by two-step calcination was investigated as a function of T2 and corresponding dwelling time t2. Pure-perovskite BaTiO3 nanopowders with the mean particle size as small as 75nm and tetragonality (c/a ratio) higher than 1.0096 could be fabricated by two-step calcination through altering T2 and/or its dwelling time t2.


2015 ◽  
Vol 3 (33) ◽  
pp. 17224-17229 ◽  
Author(s):  
Yubin Niu ◽  
Maowen Xu ◽  
Chuanjun Cheng ◽  
ShuJuan Bao ◽  
Junke Hou ◽  
...  

Na3.12Fe2.44(P2O7)2/multi-walled carbon nanotube (MWCNT) composite was fabricated by a solid state reaction and was further used to fabricate a cathode for sodium-ion batteries.


RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30628-30636 ◽  
Author(s):  
Mingxue Wang ◽  
Xiaobing Huang ◽  
Haiyan Wang ◽  
Tao Zhou ◽  
Huasheng Xie ◽  
...  

Na3V2(PO4)2F3/C composites were synthesized by a solid-state reaction method using pitch as the carbon source, the as-prepared sample with the carbon content of 12.14% possesses an excellent rate performance and cycle stability.


2014 ◽  
Vol 3 (7) ◽  
pp. A69-A71 ◽  
Author(s):  
D. Nguyen ◽  
J. Gim ◽  
V. Mathew ◽  
J. Song ◽  
S. Kim ◽  
...  

2017 ◽  
Vol 5 (32) ◽  
pp. 16616-16621 ◽  
Author(s):  
Md Mokhlesur Rahman ◽  
Irin Sultana ◽  
Srikanth Mateti ◽  
Junnan Liu ◽  
Neeraj Sharma ◽  
...  

A maricite hybrid cathode of NaFePO4/C/graphene with a novel microstructure is produced by a modified ball-milling process based on a solid-state reaction. This structure is capable of delivering high sodium storage capacity with outstanding cycle stability.


2018 ◽  
Vol 6 (14) ◽  
pp. 5555-5559 ◽  
Author(s):  
Yating Yuan ◽  
Safeer Jan ◽  
Zhiyong Wang ◽  
Xianbo Jin

Amorphous Sb/C with a nanoporous structure and subnanometric dispersity is synthesized by a simple, bottom up solid state reaction between Sb2O3and CaC2. It exhibits an unprecedented performance of sodium storage.


2014 ◽  
Vol 70 (a1) ◽  
pp. C354-C354
Author(s):  
Phoebe Allan ◽  
John Griffin ◽  
Olaf Borkiewicz ◽  
Kamila Wiaderek ◽  
Ali Darwiche ◽  
...  

Sodium-ion batteries have attracted attention in recent years because of the natural abundance of sodium compared to lithium, making them particularly attractive in applications such as large-scale grid storage where low cost and sustainability, rather than light weight is the key issue [1]. Several materials have been suggested as cathodes but far fewer studies have been done on anode materials and, because of the reluctance of sodium to intercalate into graphite, the anode material of choice in commercial lithium-ion batteries, the anode represents a significant challenge to this technology. Materials which form alloys with sodium, particularly tin and antimony, have been suggested as anode materials; their ability to react with multiple sodium ions per metal-atom give potential for high gravimetric capacities[2]. However, relatively little is known about the reaction mechanism in the battery, primarily due to drastic reduction in crystallinity during (dis)charging conditions, but also because the structures formed on electrochemical cycling may not be alloys known to exist under ambient conditions. In this study, we present a study of antimony as an anode in sodium-ion batteries, using in situ pair distribution function (PDF) analysis combined with ex situ solid-state nuclear magnetic resonance studies. PDF experiments were performed at 11-ID-B, APS using the AMPIX electrochemical cell [3], cycling against sodium metal. Inclusion of diffuse scattering in analysis is able to circumvent some of the issues of crystallinity loss, and gain information about the local structure in all regions, independent of the presence of long-range order in the material. This approach has been used to probe local correlations in previously uncharacterised regions of the electrochemical profile and analyse phase progression over the full charge cycle. This analysis has been linked with ex situ 23Na solid-state NMR experiments to examine the local environment of the sodium; these show evidence of known NaxSb phases but indicate additional metastable phases may be present at partial discharge.


2015 ◽  
Vol 51 (70) ◽  
pp. 13500-13503 ◽  
Author(s):  
Markus Krengel ◽  
Philipp Adelhelm ◽  
Franziska Klein ◽  
Wolfgang Bensch

FeV2S4synthesizedviaa solid state reaction showing a high area capacity of 2.7 mA h cm−2for sodium ion batteries at room temperature.


RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 12726-12729 ◽  
Author(s):  
Zhian Zhang ◽  
Xing Yang ◽  
Yun Fu

75.57% crystal WSe2 nanoparticles are uniformly dispersed on a carbon matrix to form WSe2/C nanomaterials using a solid-state reaction. The WSe2/C nanomaterials in sodium-ion batteries exhibit high discharge capacity and excellent cycling stability.


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