High-capacity cathodes for lithium-ion batteries from nanostructured LiFePO4 synthesized by highly-flexible and scalable flame spray pyrolysis

Hamid, Noorashrina A.; Wennig, Sebastian; Hardt, Sebastian; Heinzel, Angelika; Schulz, Christof; Wiggers, Hartmut

doi:10.1016/j.jpowsour.2012.05.047

Cited by 71 publications

(30 citation statements)

References 31 publications

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“…LiFePO4 was promising material that being developed as cathode of lithium battery due to its low cost, sustainability, no toxicity and environmental safety [1] [2]. However, it still has low conductivity and low Li ionic diffusivity.…”

Section: Introductionmentioning

confidence: 99%

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Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Halim¹,

Setyawan²,

Machmudah³

et al. 2014

AIP Conference Proceedings

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Effect of the flame temperature on the characteristics of zirconium oxide fine particle synthesized by flame assisted spray pyrolysis AIP Conference Proceedings 1554, 150 (2013) Abstract. In this study the effect of fuel rate and annealing on particle formation of LiFePO4 as battery cathode using flame spray pyrolysis method was investigated numerically and experimentally. Numerical study was done using ANSYS FLUENT program. In experimentally, LiFePO4 was synthesized from inorganic aqueous solution followed by annealing. LPG was used as fuel and air was used as oxidizer and carrier gas. Annealing process attempted in inert atmosphere at 700°C for 240 min. Numerical result showed that the increase of fuel rate caused the increase of flame temperature. Microscopic observation using Scanning Electron Microscopy (SEM) revealed that all particles have sphere and polydisperse. Increasing fuel rate caused decreasing particle size and increasing particles crystallinity. This phenomenon attributed to the flame temperature. However, all produced particles still have more amorphous phase. Therefore, annealing needed to increase particles crystallinity. Fourier Transform Infrared (FTIR) analysis showed that all particles have PO4 function group. Increasing fuel rate led to the increase of infrared spectrum absorption corresponding to the increase of particles crystallinity. This result indicated that phosphate group vibrated easily in crystalline phase. From Electrochemical Impedance Spectroscopy (EIS) analysis, annealing can cause the increase of Li + diffusivity. The diffusivity coefficient of without and with annealing particles were 6.84399×10 -10 and 8.59888×10-10 cm 2 s -1 , respectively.

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Section: Introductionmentioning

confidence: 99%

“…However, it still has low conductivity and low Li ionic diffusivity. One way to increase the conductivity and ionic diffusivity were doping Co cation [3] or carbon coating from glucose [1].…”

Section: Introductionmentioning

confidence: 99%

Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Halim¹,

Setyawan²,

Machmudah³

et al. 2014

AIP Conference Proceedings

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“…Two characteristic peaks at around 1340 and 1590 cm À1 could be ascribed to the D band arising from the defects and disorders in the carbonaceous solid and to the G band from the stretching mode of C-C bonds of typical graphite, respectively. 27,28 Whereas the discharge capacity of the cell with the carbon interlayer is 132.1 mA h g À1 for the initial cycle and a high reversible capacity of 131.1 mA h g À1 is retained after 100 cycles with the capacity retention ratio of 99.2%. 4a presents cycle performances of the cell with the carbon interlayer and without the carbon interlayer at the current rate of 1 C (1 C = 175 mA g À1 ) between 2.5 V and 4.2 V. It can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the high-rate performance of LiFePO₄batteries using carbonized-filter paper as an interlayer

Zhang

Chen

et al. 2015

New J. Chem.

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The rate performance of LiFePO 4 batteries is improved by inserting a carbon interlayer, which is synthesized by a simple and cheap pyrolysis of the filter paper commonly used in the laboratories. The specific capacity of the LiFePO 4 batteries at low current density is only slightly improved after the introduction of the carbon interlayer, while the specific capacity at high current density is greatly enhanced with a specific capacity of 90 mA h g À1 and 76 mA h g À1 at 10 C and 20 C, respectively, compared to a specific capacity of 17 mA h g À1 and 8 mA h g À1 of LiFePO 4 batteries without a carbon interlayer. The improved electrochemical performance is attributed to the porous architecture of the carbon interlayer, serving as a conductive skeleton, largely reducing the charge transfer resistance.

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“…Lithium ion battery has high energy density, long lifecycle (500-1000 cycles) and is also light weight [1]. Research in lithium ion batteries are still widely performed especially to obtain higher energy density and as well as a more environmental friendly material.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of CMC from water hyacinth for lithium-ion battery applications

Hidayat

Susanty

Riveli

et al. 2018

AIP Conference Proceedings

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High-capacity cathodes for lithium-ion batteries from nanostructured LiFePO4 synthesized by highly-flexible and scalable flame spray pyrolysis

Cited by 71 publications

References 31 publications

Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Enhancing the high-rate performance of LiFePO₄batteries using carbonized-filter paper as an interlayer

Synthesis and characterization of CMC from water hyacinth for lithium-ion battery applications

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High-capacity cathodes for lithium-ion batteries from nanostructured LiFePO4 synthesized by highly-flexible and scalable flame spray pyrolysis

Cited by 71 publications

References 31 publications

Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Effect of fuel rate and annealing process of LiFePO4 cathode material for Li-ion batteries synthesized by flame spray pyrolysis method

Enhancing the high-rate performance of LiFePO4batteries using carbonized-filter paper as an interlayer

Synthesis and characterization of CMC from water hyacinth for lithium-ion battery applications

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Enhancing the high-rate performance of LiFePO₄batteries using carbonized-filter paper as an interlayer