Fabrication of Electrospun Si/Carbon Composite Nanofibers as Anodes Materials for Lithium-Ion Batteries

2012 ◽  
Vol 532-533 ◽  
pp. 92-96 ◽  
Author(s):  
Hui Min Huang ◽  
Zhu Chi Chen ◽  
Jie Yu
Keyword(s):  
Lithium Ion Batteries ◽  
Carbon Nanofibers ◽  
Anode Materials ◽  
Composite Nanofibers ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Carbon Composite ◽  
X Ray Diffraction ◽  
X Ray ◽  
Surface Oxides

Si/carbon nanofibers (Si/CNFs) composite used as the anode materials of lithium-ion battery have been prepared via electrospinning and calcinations treatment. Hydrofluoric acid is used to remove surface oxides of Si particles. SEM observation indicates that silicon particles are uniformly embedded in the carbon nanofibers. X-ray diffraction (XRD), energy dispersive x-ray spectroscopy (EDX) and Raman scattering have been used to analysis the composition and phase of the composite materials. The first reversible capacity of the Si/CNFs composite is 1004 mAh/g, and 390 mAh/g has been remained after 100 cycles. Such Si/CNFs composite could be a promising anode material in lithium ion batteries.

In-situ X-ray diffraction study on the structural evolutions of oxidized fluorophosphates as anode materials for lithium-ion batteries

2014 ◽  
Vol 40 (7) ◽  
pp. 9107-9120 ◽  
Author(s):  
Xiaoting Lin ◽  
Rui Ma ◽  
Lianyi Shao ◽  
Miao Shui ◽  
Kaiqiang Wu ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Lithium Ion ◽  
X Ray Diffraction ◽  
X Ray

Synthesis and Electrochemical Properties of CuC2O4·xH2O and CuC2O4·xH2O/Carbon Nanotubes (CNTs) Anodes for Lithium-Ion Batteries

2020 ◽  
Vol 20 (3) ◽  
pp. 1740-1748
Author(s):  
Yi-Ni Hu ◽  
Zi-Han Lin ◽  
Fei-Xia Min ◽  
Fei Teng ◽  
Hui-Min Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Hydrothermal Process ◽  
Lithium Ion ◽  
X Ray Diffraction ◽  
Promising Candidate ◽  
X Ray ◽  
Discharge Capacities ◽  
A Current

Pure CuC2O4·xH2O and CuC2O4·xH2O/carbon nanotubes (CNTs) composites are synthesized by a low-temperature hydrothermal process. The structure and morphology of the products are analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TG) and Raman spectrum. The results demonstrate that the as-prepared CuC2O4·xH2O takes on a microsphere-like morphology, all CuC2O4·xH2O/CNTs nanocomposites are constructed by the intertwining of tabular CuC2O4·xH2O nanoparticles (NPs) and CNTs to form a tanglesome net. When evaluated as an anode materials for lithium ion batteries (LIBs), all CuC2O4·xH2O/CNTs electrodes possess higher reversible discharge capacities (more than 1000 mAh g-1) than the pure CuC2O4·xH2O, up to 200th cycle at a current density of 100 mA g-1. The results illustrate that the addition of CNTs can enhance the electrochemical performance of CuC2O4·xH2O. Overall, CuC2O4·xH2O/CNTs composite can be a promising candidate used as a promising anode for LIBs.

Synthesis of Different Molybdenum Disulfide Nanostructures and their Applicability in Lithium Ion Batteries with Ionic Liquid Electrolytes

2013 ◽  
Vol 1496 ◽  
Author(s):  
Daniel Albrecht ◽  
Hendrik Wulfmeier ◽  
Svetlozar Ivanov ◽  
Andreas Bund ◽  
Holger Fritze
Keyword(s):  
Thin Film ◽  
Lithium Ion Batteries ◽  
Molybdenum Disulfide ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
X Ray Diffraction ◽  
Characterization Methods ◽  
Maximum Capacity ◽  
X Ray ◽  
Morphology Characterization

ABSTRACTMolybdenum disulfide (MoS2) nanostructures with three different morphologies are synthesized and tested with respect to their applicability in lithium ion batteries. Thereby, electrolytes based on ionic liquids are used. The electrochemical performance of nanostructures and thin films is compared to evaluate the influence of the morphology. Characterization methods include X-Ray diffraction (XRD), cyclic voltammetry (CV), galvanostatic cycling and thin film calorimetry. The thin film and the nanostructured samples show a reversible capacity of 525 mAh/g and a maximum capacity 225 mAh/g, respectively.

Study on the Bionic Preparation and Properties of TiO2 as Three-Dimensional Anode Materials for Lithium-Ion Batteries

2014 ◽  
Vol 875-877 ◽  
pp. 1507-1510
Author(s):  
Yi Ping Tang ◽  
Liang Hong ◽  
Yuan Chao Jin ◽  
Huan Le Zhang ◽  
Guo Qu Zheng
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
3D Structure ◽  
Three Dimensional ◽  
Lithium Ion ◽  
The Novel ◽  
X Ray Diffraction ◽  
X Ray ◽  
Butterfly Wings

In this paper, a novel bionic preparation of anode materials for lithium-ion batteries was reported. Butterfly wings were used as a template to prepare three-dimensional (3D) TiO2 anode materials. The final product of TiO2 anode materials maintained the 3D structure of butterfly wings perfectly. The morphology and crystal structure were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM). The electrochemical performance was evaluated by galvanostatic chargedischarge tests. The results showed that the novel 3D porous structure is benefit to the high electrochemical performance

scholarly journals Electrospun Fe2O3–carbon composite nanofibers as durable anode materials for lithium ion batteries

2014 ◽  
Vol 2 (28) ◽  
pp. 10835 ◽  
Author(s):  
Xiang Zhang ◽  
Huihui Liu ◽  
Shaikshavali Petnikota ◽  
Seeram Ramakrishna ◽  
Hong Jin Fan
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Composite Nanofibers ◽  
Lithium Ion ◽  
Carbon Composite

scholarly journals Twist-Shaped CuO Nanowires as Anode Materials for Lithium Ion Batteries

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Hongdong Liu ◽  
Ye Lin ◽  
Zhongli Hu ◽  
Rong Hu ◽  
Haibo Ruan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
X Ray Diffraction ◽  
Step Method ◽  
Cuo Nanowires ◽  
Transmission Electron ◽  
Insight Into

Twist-shaped CuO nanowires were synthesized by two-step method consisting of solution reaction and then heat treatment. The as-synthesized samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). When evaluated as anode materials for lithium ion batteries, twist-shaped CuO nanowires showed a high initial discharge capacity of 983 mAh g−1and maintained a reversible capacity of 320 mAh g−1over 50 cycles at the current density of 100 mA g−1. Thus, 1D twist-shaped CuO nanowires provide a new insight into the development of anode materials for next-generation high performance lithium ion batteries.

High performance silicon carbon composite anode materials for lithium ion batteries

2009 ◽  
Vol 189 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Zhaojun Luo ◽  
Dongdong Fan ◽  
Xianlong Liu ◽  
Huanyu Mao ◽  
Caifang Yao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Composite Anode ◽  
Silicon Carbon

scholarly journals TiO2(B)@carbon composite nanowires as anode for lithium ion batteries with enhanced reversible capacity and cyclic performance

2011 ◽  
Vol 21 (24) ◽  
pp. 8591 ◽  
Author(s):  
Zunxian Yang ◽  
Guodong Du ◽  
Zaiping Guo ◽  
Xuebin Yu ◽  
Zhixin Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Carbon Composite ◽  
Cyclic Performance

Ball-Milled Graphite-Tin Composite Anode Materials for Lithium-Ion Battery

2012 ◽  
Vol 736 ◽  
pp. 127-132
Author(s):  
Kuldeep Rana ◽  
Anjan Sil ◽  
Subrata Ray
Keyword(s):  
Lithium Ion Battery ◽  
Anode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Composite Anode ◽  
X Ray Diffraction ◽  
Promising Alternative ◽  
X Ray ◽  
Initial Discharge ◽  
Lithium Ion Cell

Lithium alloying compounds as an anode materials have been a focused for high capacity lithium ion battery due to their highenergy capacity and safety characteristics. Here we report on the preparation of graphite-tin composite by using ball-milling in liquid media. The composite material has been characterized by scanning electron microscope, energy depressive X-ray spectroscopy, X-ray diffraction and Raman spectra. The lithium-ion cell made from graphite-tin composite presented initial discharge capacity of 1065 mAh/g and charge capacity 538 mAh/g, which becomes 528 mAh/g in the second cycle. The composite of graphite-tin with higher capacity compared to pristine graphite is a promising alternative anode material for lithium-ion battery.

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