Porous olive-like carbon decorated Fe3O4 based additive-free electrodes for highly reversible lithium storage

2014 ◽  
Vol 2 (38) ◽  
pp. 16008-16014 ◽  
Author(s):  
Jian Zhu ◽  
K. Y. Simon Ng ◽  
Da Deng

Additive-free porous olive-like carbon decorated Fe3O4 directly synthesized on the current collectors by centrifugation assisted deposition were developed. Excellent cycling performance was achieved with a specific capacity at ∼800 mA h g−1 for at least 235 cycles and impressive rate performance was accomplished.

2016 ◽  
Vol 4 (24) ◽  
pp. 9593-9599 ◽  
Author(s):  
Gaihua Li ◽  
Hao Yang ◽  
Fengcai Li ◽  
Jia Du ◽  
Wei Shi ◽  
...  

Utilizing the adsorption properties of MOFs, a nanostructured NiP2@C was successfully synthesized, which exhibited enhanced capability for lithium storage in terms of both the reversible specific capacity and high-rate performance.


CrystEngComm ◽  
2018 ◽  
Vol 20 (45) ◽  
pp. 7266-7274 ◽  
Author(s):  
Yueying Zhao ◽  
Wanwan Wang ◽  
Mengna Chen ◽  
Ruojie Wang ◽  
Zhen Fang

ZnS@MoS2 hollow polyhedrons display outstanding cycling performance and high reversible specific capacity in LIB anodes.


2020 ◽  
Vol 10 (10) ◽  
pp. 1697-1703
Author(s):  
Zebin Wu ◽  
Wei Zhou ◽  
Zhen Liu ◽  
Yijie Zhou ◽  
Guilin Zeng ◽  
...  

Flower-like C@V2O5 microspheres with high specific capacity were synthesized by a facile hydrothermal method. The microstructure, specific capacity and electrochemical properties of C@V2O5 microspheres were studied. Results showed that the C@V2O5 microspheres with a diameter of ∼3 m are covered over by V2O5 nanosheets, and therefore have a large surface area which is almost 5 times higher than that of pure V2O5 powders. Moreover, the initial specific capacity of C@V2O5 microsphere is as high as 247.42 mAh · g–1, and after 100 cycles, the capacity retention rate is still 99.4%. Compared with pure V2O5, flower-like C@V2O5 microspheres show higher discharge specific capacity, better rate performance and more stable cycling performance.


2019 ◽  
Vol 11 (1) ◽  
Author(s):  
Yingying Cao ◽  
Kaiming Geng ◽  
Hongbo Geng ◽  
Huixiang Ang ◽  
Jie Pei ◽  
...  

Abstract In this manuscript, we have demonstrated the delicate design and synthesis of bimetallic oxides nanoparticles derived from metal–oleate complex embedded in 3D graphene networks (MnO/CoMn2O4 ⊂ GN), as an anode material for lithium ion batteries. The novel synthesis of the MnO/CoMn2O4 ⊂ GN consists of thermal decomposition of metal–oleate complex containing cobalt and manganese metals and oleate ligand, forming bimetallic oxides nanoparticles, followed by a self-assembly route with reduced graphene oxides. The MnO/CoMn2O4 ⊂ GN composite, with a unique architecture of bimetallic oxides nanoparticles encapsulated in 3D graphene networks, rationally integrates several benefits including shortening the diffusion path of Li+ ions, improving electrical conductivity and mitigating volume variation during cycling. Studies show that the electrochemical reaction processes of MnO/CoMn2O4 ⊂ GN electrodes are dominated by the pseudocapacitive behavior, leading to fast Li+ charge/discharge reactions. As a result, the MnO/CoMn2O4 ⊂ GN manifests high initial specific capacity, stable cycling performance, and excellent rate capability.


2019 ◽  
Vol 6 (1) ◽  
pp. 117-125 ◽  
Author(s):  
Guangyuan Du ◽  
Mengli Tao ◽  
Wei Gao ◽  
Youquan Zhang ◽  
Renming Zhan ◽  
...  

MoS2/Ti3C2 composite with high specific capacity, good rate performance and fast ion diffusion kinetics was synthesized by a one-step hydrothermal method.


2018 ◽  
Vol 6 (15) ◽  
pp. 6289-6298 ◽  
Author(s):  
Boya Sun ◽  
Qinglei Liu ◽  
Wenshu Chen ◽  
Ning Wang ◽  
Jiajun Gu ◽  
...  

Micron-sized encapsulated-type MoS2/C hybrids exhibit high specific capacity, excellent rate performance and remarkable cycling stability when used as anodes in LIBs.


RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15044-15053
Author(s):  
Xin Guo ◽  
Qing Yuan ◽  
Chunxia Li ◽  
Hongmei Du ◽  
Jinsheng Zhao ◽  
...  

The preparation procedure and cycling performance of the two polymer composites.


2017 ◽  
Vol 5 (44) ◽  
pp. 23221-23227 ◽  
Author(s):  
Hao Wang ◽  
Ziliang Chen ◽  
Yang Liu ◽  
Hongbin Xu ◽  
Licheng Cao ◽  
...  

Hybrid nanocomposites constructed from starfish-like ZnxCo1−xS rooted in porous carbon and strongly coupled carbon nanotubes have been rationally designed and they exhibit excellent lithium-storage performance.


Sign in / Sign up

Export Citation Format

Share Document