Electrospinning of crystalline MoO3@C nanofibers for high-rate lithium storage

2015 ◽  
Vol 3 (7) ◽  
pp. 3257-3260 ◽  
Author(s):  
Xiu Li ◽  
Jiantie Xu ◽  
Lin Mei ◽  
Zhijia Zhang ◽  
Chunyu Cui ◽  
...  

Due to the advantages of their structure and component, the as-synthesized electrospun MoO3@C nanofibers could maintain a high reversible capacity of 623 and 502 mA h g−1 after 100 cycles at 500 and 1000 mA g−1, respectively.

2017 ◽  
Vol 46 (4) ◽  
pp. 1260-1265 ◽  
Author(s):  
Yuanyuan Liu ◽  
Jiantao Zai ◽  
Xiaomin Li ◽  
Zi-feng Ma ◽  
Xuefeng Qian

Al2O3coated Ni3S4nanoparticles have been designed to promote thein situconversion of Ni3S4, by confining the formed polysulfides within the Al2O3layer; these nanoparticles exhibit a high reversible capacity of 651.6 mA h g−1at 500 mA g−1, even after 400 cycles.


MRS Advances ◽  
2019 ◽  
Vol 4 (33-34) ◽  
pp. 1861-1868 ◽  
Author(s):  
Hui Wang ◽  
Youning Gong ◽  
Delong Li ◽  
Qiang Fu ◽  
Chunxu Pan

ABSTRACTIn this study, a novel brick-like NiCo2O4 material was synthesized via a facile hydrothermal method. The as-prepared NiCo2O4 material possessed high porosity with the BET specific surface area of 58.33 m2/g, and its pore size distribution was in a range of 5-15 nm with a dominant pore diameter of 10.7 nm. The electrochemical performance of the NiCo2O4 was further investigated as anode material for lithium-ion battery. The NiCo2O4 anode possessed a high lithium storage capacity up to 2353.0 mAh/g at the current density of 100 mA/g. Even at the high rate of 1 A/g, a reversible capacity of ∼600 mAh/g was still retained, and an average discharge capacity of ∼1145 mAh/g could be recovered when the current density was reduced back to 150 mA/g. Due to the simple and cost-effective process, the NiCo2O4 bricks anode material shows great potential for further large-scale applications on the area of lithium-ion battery.


2015 ◽  
Vol 3 (8) ◽  
pp. 4180-4187 ◽  
Author(s):  
Xiao Yan ◽  
Yanjuan Li ◽  
Malin Li ◽  
Yongcheng Jin ◽  
Fei Du ◽  
...  

A TiO2–bronze/N-doped graphene nanocomposite was prepared by a facile method. The material exhibits outstanding rate capacity. A high reversible capacity of 101.6 mA h g−1 is obtained at the 100C rate, indicating its great potential for use in high power lithium ion batteries.


RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10304-10309 ◽  
Author(s):  
Zahra Padashbarmchi ◽  
Amir Hossein Hamidian ◽  
Hongwei Zhang ◽  
Liang Zhou ◽  
Nematolah Khorasani ◽  
...  

Well-defined α-Fe2O3 multi-shelled hollow spheres have been fabricated by a facile spray drying method. The resulting material exhibits high reversible capacity and good cycling performance in lithium storage.


Author(s):  
Yakai Deng ◽  
Liang Zhan ◽  
Yanli Wang ◽  
Shubin Yang

The one-dimensional MoS2/carbon nanofibers (1D MoS2/CNFs) are synthesized by electrospinning using exfoliated MoS2 nanosheets and polyacrylonitrile as raw materials. The exfoliated MoS2 nanosheets with size of about 150 nm are encapsulated in carbon nanofibers, and the free-standing MoS2/CNFs can be easily cut into flexible tablet and directly used as binder-free anode for lithium storage. The resultant 1D MoS2/CNFs exhibit a very high reversible capacity of 700 mAh g-1 at 100 mA g-1 after 50 cycles, high rate capacity (450 mAh g-1 at 1000 mA g-1 after 200 cycles) and good cycle stability.


2019 ◽  
Vol 48 (28) ◽  
pp. 10422-10426 ◽  
Author(s):  
Xing Meng ◽  
Hai-Ning Wang ◽  
Yan-Hong Zou ◽  
Lu-Song Wang ◽  
Zi-Yan Zhou

POM-based metallogels are employed as anode materials for the first time, which exhibit high reversible capacity, high rate capability, and good cycling stability.


2020 ◽  
Vol 12 (9) ◽  
pp. 1429-1432
Author(s):  
Seunghwan Cha ◽  
Changhyeon Kim ◽  
Huihun Kim ◽  
Gyu-Bong Cho ◽  
Kwon-Koo Cho ◽  
...  

Recently, sodium ion batteries have attracted considerable interest for large-scale electric energy storage as an alternative to lithium ion batteries. However, the development of anode materials with long cycle life, high rate, and high reversible capacity is necessary for the advancement of sodium ion batteries. Bi anode is a promising candidate for sodium ion batteries due to its high theoretical capacity (385 mAh g–1 or 3800 mAh l–1) and high electrical conductivity (7.7 × 105 S m –1). Herein, we report the preparation of Bi anode using micro-sized commercial Bi particles. DME-based electrolyte was used, which is well known for its high ionic conductivity. The Bi anode showed excellent rate-capability up to 16 C-rate, and long cycle life stability with a high reversible capacity of 354 mAh g–1 at 16 C-rate for 50 cycles.


2018 ◽  
Vol 54 (12) ◽  
pp. 1413-1416 ◽  
Author(s):  
Weifeng Zhang ◽  
Tan Xu ◽  
Zhenwei Liu ◽  
Nae-Lih Wu ◽  
Mingdeng Wei

TiO2−x/GQDs with large specific surface areas and better electrical conductivity facilitate ion diffusion and electron transportation, leading to a high reversible capacity and a superior rate capability.


RSC Advances ◽  
2015 ◽  
Vol 5 (38) ◽  
pp. 29837-29841 ◽  
Author(s):  
Xiao Zhang ◽  
Yaping Xie ◽  
Yanfang Sun ◽  
Qiao Zhang ◽  
Qiuyu Zhu ◽  
...  

CoFe2O4nanotubes synthesizedviaself-templated strategy based on the Kirkendall effect show large and stable reversible capacity superior high-rate capability, durable cycling life and good capacity retention.


2019 ◽  
Vol 55 (77) ◽  
pp. 11575-11578 ◽  
Author(s):  
Jonghyun Choi ◽  
Kyeong-Ho Kim ◽  
Chul-Ho Jung ◽  
Seong-Hyeon Hong

P2-type Na0.7(Ni0.6Co0.2Mn0.2)O2 is synthesized and introduced as a cathode for sodium-ion batteries, which exhibits high reversible capacity, excellent high rate capability and superior long term cyclability.


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