Controllable synthesis of SnO2@C yolk–shell nanospheres as a high-performance anode material for lithium ion batteries

Nanoscale ◽  
2014 ◽  
Vol 6 (6) ◽  
pp. 3217-3222 ◽  
Author(s):  
Jinxiu Wang ◽  
Wei Li ◽  
Fei Wang ◽  
Yongyao Xia ◽  
Abdullah M. Asiri ◽  
...  

Uniform SnO2@C yolk–shell nanospheres as high-performance anode materials for lithium ion batteries.

2015 ◽  
Vol 39 (11) ◽  
pp. 8416-8423 ◽  
Author(s):  
Xiaoyu Wu ◽  
Songmei Li ◽  
Bo Wang ◽  
Jianhua Liu ◽  
Mei Yu

Various micro/nano-structured MnCo2O4 with excellent lithium storage performance were synthesized controllably.


2014 ◽  
Vol 2 (48) ◽  
pp. 20706-20713 ◽  
Author(s):  
Jisheng Zhou ◽  
Jingming Li ◽  
Kunhong Liu ◽  
Ling Lan ◽  
Huaihe Song ◽  
...  

Co(OH)2 arrays/GNSs composites, which are constructed by preferentially oriented growth, exhibit a high-performance when used as anode materials for lithium-ion batteries.


Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 827 ◽  
Author(s):  
Ying Liu ◽  
Xueying Li ◽  
Anupriya K. Haridas ◽  
Yuanzheng Sun ◽  
Jungwon Heo ◽  
...  

Lithium ion (Li-ion) batteries have been widely applied to portable electronic devices and hybrid vehicles. In order to further enhance performance, the search for advanced anode materials to meet the growing demand for high-performance Li-ion batteries is significant. Fe3C as an anode material can contribute more capacity than its theoretical one due to the pseudocapacity on the interface. However, the traditional synthetic methods need harsh conditions, such as high temperature and hazardous and expensive chemical precursors. In this study, a graphitic carbon encapsulated Fe/Fe3C (denoted as Fe/Fe3C@GC) composite was synthesized as an anode active material for high-performance lithium ion batteries by a simple and cost-effective approach through co-pyrolysis of biomass and iron precursor. The graphitic carbon shell formed by the carbonization of sawdust can improve the electrical conductivity and accommodate volume expansion during discharging. The porous microstructure of the shell can also provide increased active sites for the redox reactions. The in-situ-formed Fe/Fe3C nanoparticles show pseudocapacitive behavior that increases the capacity. The composite exhibits a high reversible capacity and excellent rate performance. The composite delivered a high initial discharge capacity of 1027 mAh g−1 at 45 mA g−1 and maintained a reversible capacity of 302 mAh g−1 at 200 mA g−1 after 200 cycles. Even at the high current density of 5000 mA g−1, the Fe/Fe3C@GC cell also shows a stable cycling performance. Therefore, Fe/Fe3C@GC composite is considered as one of the potential anode materials for lithium ion batteries.


2015 ◽  
Vol 3 (48) ◽  
pp. 24303-24308 ◽  
Author(s):  
Yanjie Wang ◽  
Jun Ke ◽  
Yawen Zhang ◽  
Yunhui Huang

A microwave-assisted rapid synthesis method is developed to prepare mesoporous nanostructured ZnCo2O4, which shows excellent electrochemical performance as an anode material for lithium-ion batteries.


2019 ◽  
Vol 7 (27) ◽  
pp. 16541-16552 ◽  
Author(s):  
Xuefang Xie ◽  
Yang Hu ◽  
Guozhao Fang ◽  
Xinxin Cao ◽  
Bo Yin ◽  
...  

In situ formed hierarchical FeS nanosheets supported by a TiO2/C fibrous backbone exhibit higher rate capability and cycling stability as anode materials for lithium ion batteries.


2019 ◽  
Vol 7 (26) ◽  
pp. 15766-15773 ◽  
Author(s):  
Gi Dae Park ◽  
Jeong Hoo Hong ◽  
Dae Soo Jung ◽  
Jong-Heun Lee ◽  
Yun Chan Kang

Unique structured microspheres with multishells comprising graphitic carbon-coated Fe3O4 hollow nanopowders are successfully synthesized as an efficient anode material for lithium-ion batteries


2014 ◽  
Vol 50 (59) ◽  
pp. 8057-8060 ◽  
Author(s):  
Yuzhen Han ◽  
Pengfei Qi ◽  
Siwu Li ◽  
Xiao Feng ◽  
Junwen Zhou ◽  
...  

A general method of preparing nanocomposites from carbon-coated ZIF-8 is introduced. Pyrolysis of these nanocomposites gives anode materials with high capacity (750 mA h g−1) and improved cyclability.


2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040011
Author(s):  
Bowen Dong ◽  
Bingbing Deng ◽  
Yangai Liu

Silicon, an anode material for lithium ion batteries, has the highest theoretical specific capacity ([Formula: see text] mAh/g). The actual lithium storage capacity of [Formula: see text] mAh/g is about 10 times that of the graphite anode materials class. This study involves magnesium heat reduction of the SiO2 preparation of silicon carbon composites. The Si/SiC composite shows a high initial specific capacity of 1406.7 mAh/g with a current density of 0.1 A/g. The morphology and pore size inherited from the SiO2 aerogel counteracts the volume expansion during the lithiation/delithiation process. This paper provides an articulate methodology for designing silicon anode material for high-performance rechargeable lithium-ion batteries.


2018 ◽  
Vol 6 (31) ◽  
pp. 15274-15283 ◽  
Author(s):  
Guiqiang Diao ◽  
Muhammad-Sadeeq Balogun ◽  
Si-Yao Tong ◽  
Xianzi Guo ◽  
Xue Huang ◽  
...  

Nearly uniform monodisperse bicomponent iron manganese oxide, (FeO)x(MnO)1−x nanocrystals encapsulated in amorphous carbon was used as a high-performance anode material for lithium ion batteries.


RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39377-39383 ◽  
Author(s):  
Huan Liu ◽  
Xinlu Wang ◽  
Hang Xu ◽  
Jinxian Wang ◽  
Qianli Ma ◽  
...  

ZnCo2O4 nanoparticles, nanotubes, and nanofibers can be controllably prepared by simply tuning the weight ratios of metallic salts and PVP polymer in the precursor solution.


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