scholarly journals Good lithium storage performance of Fe2SiO4 as an anode material for secondary lithium ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 4437-4443 ◽  
Author(s):  
Peisheng Guo ◽  
Chengxin Wang

The electrochemical properties of Fe2SiO4 particles were systematically investigated and our results proved that fayalite presents great specific capacity, superior rate capability and long battery cycle life when tested in the form of a half-cell.

2018 ◽  
Vol 281 ◽  
pp. 801-806 ◽  
Author(s):  
Li Li ◽  
Zhi Hao Wang ◽  
Gao Xue Jiang

Fe3O4@C spheres were synthesized by hydrothermal reaction at 190°C followed by a low temperature heat annealing at 600 °C and applied as an anode material for lithium-ion batteries. The samples were characterized by XRD and SEM. The electrochemical performances of as-synthesized Fe3O4@C were systemically investigated. A reversible capacity of 873 mAh g-1 is obtained in the second cycle at 400 mA g-1. More importantly, the discharge specific capacity can still maintain at about 767 mAh g-1 after 80 cycles. Moreover, Fe3O4@C spheres electrode shows satisfactory rate capability even at a rate up to 2000 mA g-1. Thus, the results demonstrate that Fe3O4@C spheres show encouraging application potential to be an advanced anode material for lithium storage


RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24366-24372 ◽  
Author(s):  
Fengqi Lu ◽  
Qiang Chen ◽  
Yibin Wang ◽  
Yonghao Wu ◽  
Pengcheng Wei ◽  
...  

The free-standing CC@TiOxNy@SnS2 nanocomposites have been synthesized via two steps hydrothermal process and exhibited excellent lithium storage performance.


2021 ◽  
pp. 2150031
Author(s):  
Hai Li ◽  
Chunxiang Lu

As anode material for lithium-ion batteries, graphite has the disadvantage of relatively low specific capacity. In this work, a simple yet effective strategy to overcome the disadvantages by using a composite of flake graphite (FG) and small-sized graphene (SG) has been developed. The FG/SG composite prepared by dispersing FG and SG (90:10 w/w) in ethanol and drying delivers much higher specific capacity than that of individual component except for improved rate capability. More surprisingly, FG/SG composite delivers higher reversible capacity than its theoretical value calculated according to the theoretical capacities of graphite and graphene. Therefore, a synergistic effect between FG and SG in lithium storage is clearly discovered. To explain it, we propose a model that abundant nanoscopic cavities were formed due to physical adhesion between FG and SG and could accommodate extra lithium.


2019 ◽  
Vol 48 (42) ◽  
pp. 16000-16007 ◽  
Author(s):  
Jiapeng He ◽  
Lu Shen ◽  
Cuiping Wu ◽  
Can Guo ◽  
Qingpeng Wang ◽  
...  

Ni/Ni2P heterostructures encapsulated in 3D porous carbon networks deliver high specific capacity and good cycle life as the anode for lithium ion batteries.


2015 ◽  
Vol 3 (16) ◽  
pp. 8683-8692 ◽  
Author(s):  
Lingyun Guo ◽  
Qiang Ru ◽  
Xiong Song ◽  
Shejun Hu ◽  
Yudi Mo

The as-prepared pineapple-shaped ZCO with a porous nanostructure shows a high specific capacity, superior rate capability and excellent cycling stability when used as an anode material for LIBs.


RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15492-15500 ◽  
Author(s):  
Zhanyu Li ◽  
Jianling Li ◽  
Yuguang Zhao ◽  
Kai Yang ◽  
Fei Gao ◽  
...  

Sm doping has a great impact on discharge capacity, rate capability and cycling performance of LTO anode materials for lithium-ion batteries.


RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62624-62629 ◽  
Author(s):  
Zhiyan Guo ◽  
Yang Zhong ◽  
Zongwei Xuan ◽  
Changming Mao ◽  
Fanglin Du ◽  
...  

MoS2/NC/G hybrids exhibit a high specific capacity, and superior rate capability for lithium ion batteries.


2015 ◽  
Vol 17 (38) ◽  
pp. 24803-24809 ◽  
Author(s):  
Ruirui Li ◽  
Shuguang Wang ◽  
Wei Wang ◽  
Minhua Cao

The as-synthesized Mo2C–NCNFs hybrid showed excellent lithium storage performance when used as an anode material for lithium ion batteries.


Author(s):  
Guangfeng Shi ◽  
Jiale Zhou ◽  
Rong Zeng ◽  
Bing Na ◽  
Shufen Zou

Abstract Porous structures in anode materials are of importance to accommodate volume dilation of active matters. In the present case, a carbon nanoporous framework is hydrothermally synthesized from glucose in the presence of graphene oxide (GO), together with in situ active Fe3O4 nanoparticles within it. The composite anode material has outstanding electrochemical performance, including high specific capacity, excellent cyclic stability and superior rate capability. The specific capacity stays at 830.8 mAhg−1 after 200 cycles at 1 A/g, equivalent to a high capacity retention of 88.7%. The findings provide valuable clues to tailor morphology of hydrothermally carbonized glucose for advanced composite anode materials of lithium-ion batteries.


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