Electrospun SnO2-Graphene Composite Nanofibers as High Performance Anode for Lithium Ion Batteries

A promising anode material for lithium ion batteries is reported in this paper. It is one-dimensional SnO2−graphene composite nanofibers (SnO2−G nanofibers) fabricated by using electrospinning technique. In the study, X-ray diffraction (XRD) and scanning electron microscopy (SEM) are used to characterize its structural and morphological properties. Samples with different ratio of SnO2 to graphene (wt%) are prepared to investigate its electrochemical performance. Galvanostatic charge/discharge tests reveals that Li-insertion/extraction is carried out through a two-phase reaction mechanism that is supported by galvanostatic charge−discharge profiles. It is found that the optimal proportion of SnO2 to graphene is 8:1 (wt%) for the electrospun composite materials. Furthermore, micro thin film batteries have been fabricated and tested. The results show that initial discharge capacity is 301.86 mA h g−1 at current density of 50 μA g−1, and battery can retain 63.3% of reversible capacity after 300 cycles, which is 5 times higher than bare SnO2.

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Influence of Heating Temperature on Structure, Morphology and Electrochemical Performance of LiV3O8 Cathode for Lithium-Ion Batteries Application

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1010.314 ◽

2020 ◽

Vol 1010 ◽

pp. 314-320

Author(s):

Mohamad Izha Ishak ◽

Khairel Rafezi Ahmad ◽

Rozana A.M. Osman ◽

Mohd Sobri Idris

Keyword(s):

Electrochemical Performance ◽

Lithium Ion Batteries ◽

Layered Structure ◽

Heating Temperature ◽

Lithium Ion ◽

Galvanostatic Charge ◽

Heat Treated ◽

Structure Morphology ◽

Performance Results ◽

Charge Discharge

LiV3O8 layered structure was successfully synthesized by a conventional solid-state approach and subsequent heat-treated at 400, 450, 500 and 550 oC. The samples were characterized by XRD, SEM, TEM, BET. Electrochemical performance of LiV3O8 was investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge. The results showed that high purity of LiV3O8 with layered structure was formed. The morphology of the samples were mixed between nanorods and nanosheets structure. For electrochemical performance, results showed that LiV3O8 heat-treated at 500 oC performed a highest charge and discharge capacity of 212 and 172 mAh g-1, respectively. From electrochemical performance results made them a good candidate for cathode material for lithium-ion batteries application.

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The Use of Succinonitrile as an Electrolyte Additive for Composite-Fiber Membranes in Lithium-Ion Batteries

Membranes ◽

10.3390/membranes10030045 ◽

2020 ◽

Vol 10 (3) ◽

pp. 45 ◽

Cited By ~ 2

Author(s):

Jahaziel Villarreal ◽

Roberto Orrostieta Chavez ◽

Sujay A. Chopade ◽

Timothy P. Lodge ◽

Mataz Alcoutlabi

Keyword(s):

Ionic Liquid ◽

Ionic Conductivity ◽

Lithium Ion Batteries ◽

Specific Capacity ◽

Lithium Ion ◽

Composite Fiber ◽

Galvanostatic Charge ◽

Lithium Anode ◽

Charge Discharge ◽

Licoo2 Cathode

In the present work, the effect of temperature and additives on the ionic conductivity of mixed organic/ionic liquid electrolytes (MOILEs) was investigated by conducting galvanostatic charge/discharge and ionic conductivity experiments. The mixed electrolyte is based on the ionic liquid (IL) (EMI/TFSI/LiTFSI) and organic solvents EC/DMC (1:1 v/v). The effect of electrolyte type on the electrochemical performance of a LiCoO2 cathode and a SnO2/C composite anode in lithium anode (or cathode) half-cells was also investigated. The results demonstrated that the addition of 5 wt.% succinonitrile (SN) resulted in enhanced ionic conductivity of a 60% EMI-TFSI 40% EC/DMC MOILE from ~14 mS·cm−1 to ~26 mS·cm−1 at room temperature. Additionally, at a temperature of 100 °C, an increase in ionic conductivity from ~38 to ~69 mS·cm−1 was observed for the MOILE with 5 wt% SN. The improvement in the ionic conductivity is attributed to the high polarity of SN and its ability to dissolve various types of salts such as LiTFSI. The galvanostatic charge/discharge results showed that the LiCoO2 cathode with the MOILE (without SN) exhibited a 39% specific capacity loss at the 50th cycle while the LiCoO2 cathode in the MOILE with 5 wt.% SN showed a decrease in specific capacity of only 14%. The addition of 5 wt.% SN to the MOILE with a SnO2/C composite-fiber anode resulted in improved cycling performance and rate capability of the SnO2/C composite-membrane anode in lithium anode half-cells. Based on the results reported in this work, a new avenue and promising outcome for the future use of MOILEs with SN in lithium-ion batteries (LIBs) can be opened.

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Investigation into electrochemical performance of NiO/graphene composite nanofibers synthesized by a simple method as anode materials for high-performance lithium ion batteries

Materials Research Express ◽

10.1088/2053-1591/abc99c ◽

2020 ◽

Vol 7 (11) ◽

pp. 115007

Author(s):

Baige Yuan ◽

Jun Li ◽

Manman Xia ◽

Ying Zhang ◽

Ruyan Lei ◽

...

Keyword(s):

Electrochemical Performance ◽

Lithium Ion Batteries ◽

Anode Materials ◽

High Performance ◽

Composite Nanofibers ◽

Lithium Ion ◽

Simple Method ◽

Graphene Composite

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Electrospun TiO2–Graphene Composite Nanofibers as a Highly Durable Insertion Anode for Lithium Ion Batteries

The Journal of Physical Chemistry C ◽

10.1021/jp302574g ◽

2012 ◽

Vol 116 (28) ◽

pp. 14780-14788 ◽

Cited By ~ 160

Author(s):

Xiang Zhang ◽

Palaniswamy Suresh Kumar ◽

Vanchiappan Aravindan ◽

Hui Hui Liu ◽

Jayaraman Sundaramurthy ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Composite Nanofibers ◽

Lithium Ion ◽

Graphene Composite

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Understanding the structural phase transitions in lithium vanadium phosphate cathodes for lithium-ion batteries

Journal of Materials Chemistry A ◽

10.1039/c9ta12435g ◽

2020 ◽

Vol 8 (20) ◽

pp. 10331-10336 ◽

Cited By ~ 2

Author(s):

Woong Oh ◽

Hyunyoung Park ◽

Bong-Soo Jin ◽

Ranjith Thangavel ◽

Won-Sub Yoon

Keyword(s):

Phase Transition ◽

Phase Transitions ◽

Lithium Ion Batteries ◽

Structural Phase ◽

Lithium Ion ◽

Lithium Vanadium Phosphate ◽

Phase Reaction ◽

Structural Phase Transitions ◽

Vanadium Phosphate ◽

Two Phase

Inconspicuous two-phase reaction during Li0V2(PO4)3–Li2V2(PO4)3 phase transition in Li3V2(PO4)3 cathode.

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Hydrothermal Synthesis and Electrochemical Performance of LiFePO4/Graphene Composites for Lithium-Ion Batteries

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.900.242 ◽

2014 ◽

Vol 900 ◽

pp. 242-246 ◽

Cited By ~ 1

Author(s):

Xing Ling Lei ◽

Hai Yan Zhang ◽

Yi Ming Chen ◽

Wen Guang Wang ◽

Zi Dong Huang ◽

...

Keyword(s):

Electron Microscopy ◽

Lithium Ion Batteries ◽

Electrochemical Impedance ◽

Lithium Ion ◽

X Ray Diffraction ◽

Galvanostatic Charge ◽

X Ray ◽

Charge Discharge ◽

Scanning Electron ◽

Discharge Test

LiFePO4/graphene composites were prepared via a simple hydrothermal method. The as-prepared LiFePO4/graphene composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), galvanostatic charge-discharge test, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. The lithium-ion batteries using LiFePO4/graphene composites as cathode material exhibited a discharge capacity of 165 mAh/g, which was 97% of the theoretical capacity of 170 mAh/g.

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SnO2–Graphene Composite Synthesized via an Ultrafast and Environmentally Friendly Microwave Autoclave Method and Its Use as a Superior Anode for Lithium-Ion Batteries

The Journal of Physical Chemistry C ◽

10.1021/jp2061128 ◽

2011 ◽

Vol 115 (50) ◽

pp. 25115-25120 ◽

Cited By ~ 128

Author(s):

Chao Zhong ◽

Jiazhao Wang ◽

Zhixin Chen ◽

Huakun Liu

Keyword(s):

Lithium Ion Batteries ◽

Lithium Ion ◽

Environmentally Friendly ◽

Graphene Composite

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Preparation of uniform flower-like CuO and flower-like CuO/graphene composite and their application in lithium ion batteries

Transactions of Nonferrous Metals Society of China ◽

10.1016/s1003-6326(11)61495-7 ◽

2012 ◽

Vol 22 (10) ◽

pp. 2523-2528 ◽

Cited By ~ 18

Author(s):

Han CHEN ◽

Fan FENG ◽

Zhong-liang HU ◽

Fu-sheng LIU ◽

Wen-qiang GONG ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Lithium Ion ◽

Graphene Composite

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Voltage hysteresis of lithium ion batteries caused by mechanical stress

Physical Chemistry Chemical Physics ◽

10.1039/c5cp06179b ◽

2016 ◽

Vol 18 (6) ◽

pp. 4721-4727 ◽

Cited By ~ 72

Author(s):

Bo Lu ◽

Yicheng Song ◽

Qinglin Zhang ◽

Jie Pan ◽

Yang-Tse Cheng ◽

...

Keyword(s):

Lithium Ion Batteries ◽

Mechanical Stress ◽

Crucial Role ◽

Lithium Ion ◽

Voltage Hysteresis ◽

Charge Discharge

The crucial role of mechanical stress in voltage hysteresis of lithium ion batteries in charge–discharge cycles is investigated theoretically and experimentally.

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