Synthesis of three-dimensional free-standing WSe2/C hybrid nanofibers as anodes for high-capacity lithium/sodium ion batteries

2019 ◽  
Vol 7 (34) ◽  
pp. 19898-19908 ◽  
Author(s):  
Jing Li ◽  
Shaobo Han ◽  
Junwei Zhang ◽  
Junxiang Xiang ◽  
Xingqun Zhu ◽  
...  
Keyword(s):  
Three Dimensional ◽  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Free Standing ◽  
Hybrid Nanofibers

A flexible three-dimensional WSe2/C nanofiber was reported and investigated by the in situ TEM, which finally exhibited high reversible cycling capability and ultra-long lifespan up to 10 000 cycles at ultrahigh rate.

scholarly journals Three-Dimensional Self-assembled Hairball-Like VS4 as High-Capacity Anodes for Sodium-Ion Batteries

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Shuangshuang Ding ◽  
Bingxin Zhou ◽  
Changmiao Chen ◽  
Zhao Huang ◽  
Pengchao Li ◽  
...  
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
High Capacity ◽  
Sodium Ion ◽  
Ex Situ ◽  
Sodium Ion Batteries ◽  
High Discharge Capacity ◽  
Reversible Transformation ◽  
Self Assembled ◽  
Consistent Performance

AbstractSodium-ion batteries (SIBs) are considered to be attractive candidates for large-scale energy storage systems because of their rich earth abundance and consistent performance. However, there are still challenges in developing desirable anode materials that can accommodate rapid and stable insertion/extraction of Na+ and can exhibit excellent electrochemical performance. Herein, the self-assembled hairball-like VS4 as anodes of SIBs exhibits high discharge capacity (660 and 589 mAh g−1 at 1 and 3 A g−1, respectively) and excellent rate property (about 100% retention at 10 and 20 A g−1 after 1000 cycles) at room temperature. Moreover, the VS4 can also exhibit 591 mAh g−1 at 1 A g−1 after 600 cycles at 0 °C. An unlike traditional mechanism of VS4 for Na+ storage was proposed according to the dates of ex situ characterization, cyclic voltammetry, and electrochemical kinetic analysis. The capacities of the final stabilization stage are provided by the reactions of reversible transformation between Na2S and S, which were considered the reaction mechanisms of Na–S batteries. This work can provide a basis for the synthesis and application of sulfur-rich compounds in fields of batteries, semiconductor devices, and catalysts.

scholarly journals Sodium‐Ion Batteries: In Situ Fabrication of Branched TiO 2 /C Nanofibers as Binder‐Free and Free‐Standing Anodes for High‐Performance Sodium‐Ion Batteries (Small 30/2019)

Small ◽  
2019 ◽  
Vol 15 (30) ◽  
pp. 1970158
Author(s):  
Ling Wang ◽  
Guorui Yang ◽  
Jianan Wang ◽  
Silan Wang ◽  
Caiyun Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Free Standing ◽  
In Situ Fabrication ◽  
Binder Free

High-capacity organic sodium ion batteries using a sustainable C4Q/CMK-3/SWCNT electrode

2019 ◽  
Vol 6 (8) ◽  
pp. 1977-1985 ◽  
Author(s):  
Bing Yan ◽  
Lijiang Wang ◽  
Weiwei Huang ◽  
Shibing Zheng ◽  
Pandeng Hu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Three Dimensional ◽  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Conductive Network

SWCNTs formed a three-dimensional conductive network between C4Q/CMK-3 nanocomposites, significantly improving the electrochemical performance of C4Q-SIBs.

scholarly journals Understanding Phase Stability of Metallic 1T-MoS2 Anodes for Sodium-Ion Batteries

2019 ◽  
Vol 4 (2) ◽  
pp. 53 ◽  
Author(s):  
Christopher Lane ◽  
Daxian Cao ◽  
Hongyan Li ◽  
Yucong Jiao ◽  
Bernardo Barbiellini ◽  
...  
Keyword(s):  
Phase Stability ◽  
First Principles ◽  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
In Situ Raman ◽  
Charging And Discharging Processes ◽  
The Stability ◽  
Insight Into

We discuss metallic 1T-MoS2 as an anode material for sodium-ion batteries (SIBs). In situ Raman is used to investigate the stability of metallic MoS2 during the charging and discharging processes. Parallel first-principles computations are used to gain insight into the experimental observations, including the measured conductivities and the high capacity of the anode.

In-situ carbon coated CoSe microrods as a high-capacity anode for sodium ion batteries

2020 ◽  
Vol 820 ◽  
pp. 153090 ◽  
Author(s):  
Mengying Wang ◽  
Huinan Guo ◽  
Cuihua An ◽  
Yan Zhang ◽  
Weiqin Li ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Carbon Coated

scholarly journals Substrate Surface Alloy Strategy for Integrated Sulfide Electrode for Sodium Ion Batteries with Superior Lifespan

2021 ◽  
Author(s):  
Lifeng Zhou ◽  
Tao Du ◽  
Liying Liu ◽  
Yisong Wang ◽  
Wenbin Luo
Keyword(s):  
Substrate Surface ◽  
Three Dimensional ◽  
Surface Alloy ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Free Standing ◽  
Active Materials ◽  
Binder Free ◽  
Porous Nanostructure

Binder-free free-standing sulfide electrode was synthesized and fabricated with a three dimensional (3D) porous nanostructure. In order to strengthen the adhesion between substrate and active materials, the surface of employed...

In situ N-doped carbon modified (Co0.5Ni0.5)9S8 solid-solution hollow spheres as high-capacity anodes for sodium-ion batteries

2019 ◽  
Vol 7 (14) ◽  
pp. 8268-8276 ◽  
Author(s):  
Dongwei Cao ◽  
Wenpei Kang ◽  
Shuilong Wang ◽  
Yuyu Wang ◽  
Kaian Sun ◽  
...  
Keyword(s):  
Solid Solution ◽  
Hollow Spheres ◽  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries

The in situ N-doped carbon modified (Co0.5Ni0.5)9S8 solid-solution hollow spheres can be explored as high-capacity anodes for sodium-ion batteries.

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