scholarly journals MoO 2 nanosheets embedded in amorphous carbon matrix for sodium-ion batteries

2017 ◽  
Vol 4 (10) ◽  
pp. 170892 ◽  
Author(s):  
Hong He ◽  
Yuhong Man ◽  
Jingang Yang ◽  
Jiale Xie ◽  
Maowen Xu
Keyword(s):  
Amorphous Carbon ◽  
Volume Change ◽  
Coulombic Efficiency ◽  
Carbon Matrix ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Facile Hydrothermal Method ◽  
Charge Capacity ◽  
Transport Channels ◽  
A Current

MoO 2 nanosheets embedded in the amorphous carbon matrix (MoO 2 /C) are successfully synthesized via a facile hydrothermal method and investigated as an anode for sodium-ion batteries. Because of the efficient ion transport channels and good volume change accommodation, MoO 2 /C delivers a discharge/charge capacity of 367.8/367.0 mAh g −1 with high coulombic efficiency (99.4%) after 100 cycles at a current density of 50 mA g −1 .

MoS2nanosheets grown on amorphous carbon nanotubes for enhanced sodium storage

2016 ◽  
Vol 4 (12) ◽  
pp. 4375-4379 ◽  
Author(s):  
Xin Xu ◽  
Demei Yu ◽  
Han Zhou ◽  
Lusi Zhang ◽  
Chunhui Xiao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Amorphous Carbon ◽  
Current Density ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hybrid Nanostructure ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Sodium Storage ◽  
A Current

A unique hybrid nanostructure of MoS2@ACNTs is designed and fabricated as an anode material for sodium-ion batteries. With advantages of its unique constituents and architecture, the MoS2@ACNT electrode is capable of exhibiting a high discharge capacity of 461 mA h g−1even over 150 cycles at a current density of 500 mA g−1.

Facile synthesis of P2-type Na0.4Mn0.54Co0.46O2as a high capacity cathode material for sodium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (63) ◽  
pp. 51454-51460 ◽  
Author(s):  
Xijun Xu ◽  
Shaomin Ji ◽  
Ruibo Gao ◽  
Jun Liu
Keyword(s):  
Cathode Material ◽  
Specific Capacity ◽  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Facile Synthesis ◽  
Charge Capacity ◽  
A Current

P2-type Na0.4Mn0.54Co0.46O2nanosheets were facilely synthesizedviaa two-step annealing route, which showed a high second charge capacity of 194 mA h g−1and delivered as specific capacity of 125 mA h g−1at a current of 20 mA g−1after 60 cycles.

Carbon-coated Na3V2(PO4)2F3 nanoparticles embedded in a mesoporous carbon matrix as a potential cathode material for sodium-ion batteries with superior rate capability and long-term cycle life

2015 ◽  
Vol 3 (43) ◽  
pp. 21478-21485 ◽  
Author(s):  
Qiang Liu ◽  
Dongxue Wang ◽  
Xu Yang ◽  
Nan Chen ◽  
Chunzhong Wang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Mesoporous Carbon ◽  
Rate Capability ◽  
Carbon Matrix ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Hrtem Image ◽  
Carbon Coated

The HRTEM image and long-term cycle life with capacity retentions of 70% and 50% over 1000 and 3000 cycles at 10C and 30C rates, respectively.

scholarly journals A stable cathode-solid electrolyte composite for high-voltage, long-cycle-life solid-state sodium-ion batteries

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Erik A. Wu ◽  
Swastika Banerjee ◽  
Hanmei Tang ◽  
Peter M. Richardson ◽  
Jean-Marie Doux ◽  
...  
Keyword(s):  
Solid State ◽  
High Voltage ◽  
Coulombic Efficiency ◽  
Composite Cathode ◽  
Cycling Performance ◽  
Sodium Ion ◽  
Great Promise ◽  
Sodium Ion Batteries ◽  
Ion Conductor ◽  
Oxide Cathodes

AbstractRechargeable solid-state sodium-ion batteries (SSSBs) hold great promise for safer and more energy-dense energy storage. However, the poor electrochemical stability between current sulfide-based solid electrolytes and high-voltage oxide cathodes has limited their long-term cycling performance and practicality. Here, we report the discovery of the ion conductor Na3-xY1-xZrxCl6 (NYZC) that is both electrochemically stable (up to 3.8 V vs. Na/Na+) and chemically compatible with oxide cathodes. Its high ionic conductivity of 6.6 × 10−5 S cm−1 at ambient temperature, several orders of magnitude higher than oxide coatings, is attributed to abundant Na vacancies and cooperative MCl6 rotation, resulting in an extremely low interfacial impedance. A SSSB comprising a NaCrO2 + NYZC composite cathode, Na3PS4 electrolyte, and Na-Sn anode exhibits an exceptional first-cycle Coulombic efficiency of 97.1% at room temperature and can cycle over 1000 cycles with 89.3% capacity retention at 40 °C. These findings highlight the immense potential of halides for SSSB applications.

A waste biomass derived hard carbon as a high-performance anode material for sodium-ion batteries

2016 ◽  
Vol 4 (34) ◽  
pp. 13046-13052 ◽  
Author(s):  
Pin Liu ◽  
Yunming Li ◽  
Yong-Sheng Hu ◽  
Hong Li ◽  
Liquan Chen ◽  
...  
Keyword(s):  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Sodium Ion ◽  
Cycle Performance ◽  
Sodium Ion Batteries ◽  
Waste Biomass ◽  
Hard Carbon ◽  
Practical Applications

This study reports a hard carbon material derived from a waste biomass of corn cob and the influence of carbonized temperature on electrochemical performance. This study provides a promising anode material with low cost, high initial coulombic efficiency and excellent cycle performance, making sodium-ion batteries closer to practical applications.

scholarly journals Electrochemical Performance of \(\text{Na}_{0.44}\text{MnO}_{2}\) Synthesized by Hydrothermal Method Using as a Cathode Material for Sodium Ion Batteries

2017 ◽  
Vol 27 (2) ◽  
pp. 143 ◽  
Author(s):  
Tan Anh Ta ◽  
Long Duy Pham ◽  
Hieu Sy Nguyen ◽  
Chung Vu Hoang ◽  
Chi Ha Le ◽  
...  
Keyword(s):  
Cathode Material ◽  
Hydrothermal Method ◽  
Coulombic Efficiency ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Cycle Stability ◽  
Capacity Retention ◽  
Scanning Electron Microscope Analysis ◽  
Electron Microscope Analysis ◽  
Discharge Capacities

Orthorhombic Na0.44MnO2 with an S-shape tunnel structure was successfully synthesized by a hydrothermal method. The Na0.44MnO2 material has lattice parameters of a = 9.0842 Å, b = 26.2889 Å, and c = 2.8245 Å. Scanning electron microscope analysis reveals that the morphologies of Na0.44MnO2 consist of Na0.44MnO2 nanowires with diameters of about 30-50 nm and Na0.44MnO2 particles with the size in the range of 200 to 500 nm. 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 an 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.

NiSe2 nanooctahedra as anodes for high-performance sodium-ion batteries

2019 ◽  
Vol 43 (32) ◽  
pp. 12858-12864 ◽  
Author(s):  
Siwei Fan ◽  
Guangda Li ◽  
Gai Yang ◽  
Xu Guo ◽  
Xinhuan Niu
Keyword(s):  
Hydrothermal Method ◽  
Anode Material ◽  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Facile Hydrothermal Method ◽  
Storage Performance ◽  
Ion Storage

Octahedral NiSe2 was fabricated by a facile hydrothermal method. It showed excellent Na ion storage performance when used as an anode material for sodium-ion batteries.

Carbon capsule confined Sb2Se3 for fast Na+ extraction in sodium-ion batteries

2020 ◽  
Vol 4 (2) ◽  
pp. 797-808
Author(s):  
Ling Guo ◽  
Liyun Cao ◽  
Jianfeng Huang ◽  
Jiayin Li ◽  
Shaoyi Chen
Keyword(s):  
Volume Change ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Electrode Structure

Uniform carbon capsules can suppress volume change of Sb2Se3 and uniformly release stress, resulting in a stable electrode structure with fast Na+ extraction.

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