Facile fabrication and electrochemical properties of high-quality reduced graphene oxide/cobalt sulfide composite as anode material for lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 37180-37186 ◽  
Author(s):  
Zhangpeng Li ◽  
Wenyue Li ◽  
Hongtao Xue ◽  
Wenpei Kang ◽  
Xia Yang ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cobalt Sulfide ◽  
Lithium Storage ◽  
High Quality ◽  
Reduced Graphene ◽  
Facile Fabrication ◽  
Wet Chemical ◽  
Ultrasound Assisted

A simple and efficient ultrasound-assisted wet chemical-synthesized rGO/cobalt sulfide anode exhibits high lithium storage capacity and excellent rate capability.

scholarly journals Facile Synthesis of Sn/Nitrogen-Doped Reduced Graphene Oxide Nanocomposites with Superb Lithium Storage Properties

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1084 ◽  
Author(s):  
Quan Sun ◽  
Ying Huang ◽  
Shi Wu ◽  
Zhonghui Gao ◽  
Hang Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Active Sites ◽  
Electronic Conductivity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Discharge Process ◽  
Lithium Storage ◽  
Nitrogen Doped ◽  
Reduced Graphene

Sn/Nitrogen-doped reduced graphene oxide (Sn@N-G) composites have been successfully synthesized via a facile method for lithium-ion batteries. Compared with the Sn or Sn/graphene anodes, the Sn@N-G anode exhibits a superb rate capability of 535 mAh g−1 at 2C and cycling stability up to 300 cycles at 0.5C. The improved lithium-storage performance of Sn@N-G anode could be ascribed to the effective graphene wrapping, which accommodates the large volume change of Sn during the charge–discharge process, while the nitrogen doping increases the electronic conductivity of graphene, as well as provides a large number of active sites as reservoirs for Li+ storage.

Facile fabrication of three-dimensional hierarchical CuO nanostructures with enhanced lithium storage capability

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 68061-68066 ◽  
Author(s):  
Yuxuan Zhu ◽  
Ningning Sun ◽  
Weiwei Lin ◽  
Yue Ma ◽  
Chao Lai ◽  
...  
Keyword(s):  
Anode Materials ◽  
Three Dimensional ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
High Discharge ◽  
High Discharge Capacity ◽  
Long Cycle Life ◽  
Facile Fabrication ◽  
Good Rate Capability

3D hierarchical CuO nanostructures with flower-like and urchin-like morphologies have been prepared by a solvothermal method. They display high discharge capacity, good rate capability and long cycle life as anode materials for lithium-ion battery.

Facile fabrication of reduced graphene oxide covered ZnCo2O4 porous nanowire array hierarchical structure on Ni-foam as a high performance anode for a lithium-ion battery

RSC Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 547-554 ◽  
Author(s):  
Yujue Wang ◽  
Yongzhi Zhang ◽  
Junke Ou ◽  
Qian Zhao ◽  
Mei Liao ◽  
...  
Keyword(s):  
High Performance ◽  
Nanowire Array ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Superior Performance ◽  
Ni Foam ◽  
High Specific Capacity ◽  
Reduced Graphene ◽  
Facile Fabrication

We have successfully prepared a ZNWG–Ni electrode for LIBs showing superior performance with a high specific capacity, fine rate capability and remarkable cycling stability.

Highly stable GeOx@C core–shell fibrous anodes for improved capacity in lithium-ion batteries

2015 ◽  
Vol 3 (39) ◽  
pp. 19907-19912 ◽  
Author(s):  
Meng Li ◽  
Dan Zhou ◽  
Wei-Li Song ◽  
Xiaogang Li ◽  
Li-Zhen Fan
Keyword(s):  
Lithium Ion Batteries ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Core Shell ◽  
Lithium Storage ◽  
Storage Performance ◽  
Facile Fabrication ◽  
Hollow Carbon ◽  
Fiber Electrode

We demonstrate a facile fabrication in which encapsulation of GeOx nanoparticles into hollow carbon shells is achieved through co-axial electrospinning. The resultant GeOx@C core–shell fiber electrode exhibits excellent lithium storage performance, with stable reversible capacity and excellent rate capability.

scholarly journals Co3V2O8 Nanoparticles Supported on Reduced Graphene Oxide for Efficient Lithium Storage

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 740 ◽  
Author(s):  
Le Hu ◽  
Chaoqun Shang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Structural Integrity ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Fast Reaction ◽  
Potential Electrode ◽  
Reduced Graphene

Co3V2O8 (CVO) with high theoretical specific capacity derived from the multiple oxidation states of V and Co is regarded as a potential electrode material for lithium-ion batteries (LIBs). Herein, reduced graphene oxide (rGO)-supported ultrafine CVO (rGO@CVO) nanoparticles are successfully prepared via the hydrothermal and subsequent annealing processes. The CVO supported on 2D rGO nanosheets possess excellent structural compatibility for the accommodation of volume variation to maintain the structural integrity of an electrode during the repeated lithiation/delithiation process. On the other hand, the rGO, as a highly-conductive network in the rGO@CVO composite, facilitates rapid charge transfer to ensure fast reaction kinetics. Moreover, the CV kinetic analysis indicates that the capacity of rGO@CVO is mainly dominated by a pseudocapacitive process with favorable rate capability. As a result, the rGO@CVO composite exhibits improved specific capacity (1132 mAh g−1, 0.1 A g−1) and promising rate capability (482 mAh g−1, 10 A g−1).

Hierarchical porous MnCo2O4 yolk–shell microspheres from MOFs as secondary nanomaterials for high power lithium ion batteries

2019 ◽  
Vol 48 (25) ◽  
pp. 9205-9213 ◽  
Author(s):  
Hongxun Yang ◽  
Yue Xie ◽  
Miaomiao Zhu ◽  
Yongmin Liu ◽  
Zhenkang Wang ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Cyclic Performance ◽  
Lithium Storage ◽  
Hierarchical Porous ◽  
Subsequent Calcination ◽  
Calcination Treatment

Hierarchical porous MnCo2O4 yolk–shell microspheres have been synthesized via a facile chemical precipitation method with subsequent calcination treatment, showing high reversible lithium storage capacity, excellent cyclic performance and enhanced rate capability.

scholarly journals Zn2GeO4 nanorods grown on carbon cloth as high performance flexible lithium-ion battery anodes

RSC Advances ◽  
2017 ◽  
Vol 7 (82) ◽  
pp. 51807-51813 ◽  
Author(s):  
T. T. Yu ◽  
H. L. Liu ◽  
M. Huang ◽  
J. H. Zhang ◽  
D. Q. Su ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
High Performance ◽  
Storage Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Carbon Cloth ◽  
Lithium Storage ◽  
Novel Strategy

A novel strategy was proposed for the simultaneous preparation of a high performance flexible Zn2GeO4/CC electrode. The as-formed composites exhibited high reversible lithium storage capacity, long cyclability, and excellent rate capability.

Co3O4/porous carbon nanofibers composite as anode for high-performance lithium ion batteries with improved cycle performance and lithium storage capacity

2016 ◽  
Vol 51 (3) ◽  
pp. 315-322 ◽  
Author(s):  
Hongxun Yang ◽  
Yang Wang ◽  
Yu Nie ◽  
Shengnan Sun ◽  
Tongyi Yang
Keyword(s):  
Lithium Ion Batteries ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Storage Capacity ◽  
Electronic Conductivity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Lithium Storage ◽  
Capacity Retention

Co3O4 is a promising candidate as an anode material for the next generation lithium ion batteries because of its high theoretical storage capacity and energy density. However, the disadvantages of poor capacity retention caused by large volume changes during cycling and low rate capability due to its poor electronic conductivity frustrate its practical applications. We have developed a binary nanocomposite based on Co3O4 and porous carbon nanofibers synthesized via an electrospinning method followed by thermal treatment. As an anode for lithium ion batteries, the Co3O4/ porous carbon nanofibers composite exhibits a remarkably improved electrochemical performance in terms of lithium storage capacity (869.5 mAh g−1 at 0.1 C), high-initial Coulombic efficiency (73.8%), cycling stability (94.9% capacity retention at 50 cycles), and rate capability (403.6 mAh g−1 at 2 C at 25 cycles) compared to pure Co3O4. This improvement is attributed to the introduction of porous carbon nanofibers which could improve electrical conductivity of material and accommodate the volume expansion/contraction of Co3O4 nanoparticles during cycling.

Preparation of Nanoplatelet-Like MoS2/rGO Composite as High-Performance Anode Material for Lithium-Ion Batteries

NANO ◽  
2019 ◽  
Vol 14 (03) ◽  
pp. 1950033
Author(s):  
Shugang Pan ◽  
Ning Zhang ◽  
Yongsheng Fu
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Reduced Graphene ◽  
Initial Charge ◽  
Platelet Structure

In this paper, we report a facile strategy to design and prepare reduced graphene oxide (rGO) supported MoS2 nanoplatelet (MoS2/rGO) via a solvothermal co-assembly process. It is found that in the as-obtained MoS2/rGO nanocomposite, MoS2 possesses unique platelet structure and rGO is exfoliated due to the in situ growth of MoS2 nanoplatelet, leading to a large specific surface area, facilitating rapid diffusion of lithium ions. The nanocomposite is used as a promising anode material for lithium-ion batteries and displays a high initial charge capacity (1382[Formula: see text]mA[Formula: see text]h[Formula: see text]g[Formula: see text]), excellent rate capability and cycling stability. The remarkable lithium storage performance of MoS2/rGO nanocomposite is mainly ascribed to the inherent nanostructure of the MoS2, and the synergistic effect between rGO nanosheets and MoS2 nanoplatelets.

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