Removing structural water from sodium titanate anodes towards barrier-free ion diffusion for sodium ion batteries

2017 ◽  
Vol 5 (35) ◽  
pp. 18691-18697 ◽  
Author(s):  
Qing Zhang ◽  
Tianqi Zhang ◽  
Yaqing Wei ◽  
Tianyou Zhai ◽  
Huiqiao Li
Keyword(s):  
Rate Capability ◽  
Sodium Titanate ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Ion Diffusion ◽  
Structural Water ◽  
Free Ion ◽  
Barrier Free

The dehydrated sample exhibits a better rate capability and enhanced cycling performance, suggesting that the existence of layered water in sodium titanate is unfavourable for the sodium ion diffusion in TiO6 octahedral layers.

scholarly journals Effects of F-Doping on the Electrochemical Performance of Na2Ti3O7 as an Anode for Sodium-Ion Batteries

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2206 ◽  
Author(s):  
Zehua Chen ◽  
Liang Lu ◽  
Yu Gao ◽  
Qixiang Zhang ◽  
Chuanxiang Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrochemical Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Ion Diffusion ◽  
X Ray Diffraction ◽  
Phase Crystal

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.

In situ hydrothermal synthesis of double-carbon enhanced novel cobalt germanium hydroxide composites as promising anode material for sodium ion batteries

2021 ◽  
Author(s):  
Ni Wen ◽  
Siyuan Chen ◽  
Jingjie Feng ◽  
Ke Zhang ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Anode Material ◽  
Rate Capability ◽  
Cycling Performance ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
High Rate Capability

The double-carbon confined CGH@C/rGO composite is designed via a facile in situ hydrothermal strategy. When used as an anode for sodium-ion batteries, it exhibits superior reversible capacities, high rate capability, and stable cycling performance.

Uniform yolk–shell Sn4P3@C nanospheres as high-capacity and cycle-stable anode materials for sodium-ion batteries

2015 ◽  
Vol 8 (12) ◽  
pp. 3531-3538 ◽  
Author(s):  
Jun Liu ◽  
Peter Kopold ◽  
Chao Wu ◽  
Peter A. van Aken ◽  
Joachim Maier ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Reversible Capacity ◽  
Very High

Uniform yolk–shell Sn4P3@C nanospheres exhibit very high reversible capacity, superior rate capability and stable cycling performance for Na-ion batteries.

scholarly journals Hard Carbon Derived from Avocado Peels as a High-Capacity, High-Performance Anode Material for Sodium-Ion Batteries

2021 ◽  
Author(s):  
Francielli Genier ◽  
Shreyas Pathreeker ◽  
Robson Schuarca ◽  
Mohammad Islam ◽  
Ian Hosein
Keyword(s):  
High Performance ◽  
High Capacity ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hard Carbon ◽  
Storage Technologies ◽  
Carbon Based

Deriving battery grade materials from natural sources is a key element to establishing sustainable energy storage technologies. In this work, we present the use of avocado peels as a sustainable source for conversion into hard carbon based anodes for sodium ion batteries. The avocado peels are simply washed and dried then proceeded to a high temperature conversion step. Materials characterization reveals conversion of the avocado peels in high purity, highly porous hard carbon powders. When prepared as anode materials they show to the capability to reversibly store and release sodium ions. The hard carbon-based electrodes exhibit excellent cycling performance, namely, a reversible capacity of 352.55 mAh/g at 0.05 A/g, rate capability up to 86 mAh/g at 3500 mA/g, capacity retention of >90%, and 99.9% coulombic efficiencies after 500 cycles. This study demonstrates avocado derived hard carbon as a sustainable source that can provide excellent electrochemical and battery performance as anodes in sodium ion batteries.

Two-dimensional Sb@TiO2−x nanoplates as a high-performance anode material for sodium-ion batteries

2019 ◽  
Vol 7 (6) ◽  
pp. 2553-2559 ◽  
Author(s):  
Pengxin Li ◽  
Xin Guo ◽  
Shijian Wang ◽  
Rui Zang ◽  
Xuemei Li ◽  
...  
Keyword(s):  
Anode Material ◽  
High Performance ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Two Dimensional ◽  
High Reversible Capacity

Two-dimensional Sb@TiO2−x nanoplates with abundant voids deliver high reversible capacity, excellent rate capability and stable cycling performance.

scholarly journals Electrospinning synthesis of Co3O4@C nanofibers as a high-performance anode for sodium ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (37) ◽  
pp. 23122-23126 ◽  
Author(s):  
Zhenwei Mao ◽  
Min Zhou ◽  
Kangli Wang ◽  
Wei Wang ◽  
Hongwei Tao ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Reversible Capacity

Co3O4@CNFs was fabricated facilely with unique 1D structure of Co3O4 nanoparticles encapsulated in carbon nanofibers, delivering a high reversible capacity of 422.4 mA h g−1 with outstanding rate capability and cycling performance.

CuO-Coated and Cu2+-doped Co-modified P2-type Na2/3[Ni1/3Mn2/3]O2 for sodium-ion batteries

2019 ◽  
Vol 21 (1) ◽  
pp. 314-321 ◽  
Author(s):  
Rongbin Dang ◽  
Qi Li ◽  
Minmin Chen ◽  
Zhongbo Hu ◽  
Xiaoling Xiao
Keyword(s):  
Cathode Material ◽  
Rate Capability ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
First Time

Layered P2-type CuO-coated Na2/3[Ni1/3Mn2/3]O2 (NNMO@CuO) with excellent rate capability and cycling performance was investigated as a sodium-ion battery cathode material for the first time.

Mesoporous soft carbon as an anode material for sodium ion batteries with superior rate and cycling performance

2016 ◽  
Vol 4 (17) ◽  
pp. 6472-6478 ◽  
Author(s):  
Bin Cao ◽  
Huan Liu ◽  
Bin Xu ◽  
Yaofei Lei ◽  
Xiaohong Chen ◽  
...  
Keyword(s):  
Anode Material ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Mesophase Pitch ◽  
Sodium Ion Batteries ◽  
High Reversible Capacity ◽  
Soft Carbon

Mesoporous soft carbon with a high reversible capacity of 331 mA h g−1, excellent rate capability and cycling performance was prepared from mesophase pitch using nano-CaCO3 as the template for sodium-ion batteries.

Multi-functional PEDOT-engineered sodium titanate nanowires for sodium–ion batteries with synchronous improvements in rate capability and structural stability

2019 ◽  
Vol 7 (33) ◽  
pp. 19241-19247 ◽  
Author(s):  
Qing Zhang ◽  
Yi He ◽  
Peng Mei ◽  
Xun Cui ◽  
Yingkui Yang ◽  
...  
Keyword(s):  
Structural Stability ◽  
Rate Capability ◽  
Sodium Titanate ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Titanate Nanowires

PEDOT-encapsulated sodium titanate nanowires with improved rate capability and structural stability arising from bridged networks and multi-functional PEDOT shells.

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