Preparation, temperature dependent structural, molecular dynamics simulations studies and electrochemical properties of LiFePO4

Rao, R. Prasada; Reddy, M. V.; Adams, Stefan; Chowdari, B. V. R.

doi:10.1016/j.materresbull.2015.02.019

Cited by 27 publications

(12 citation statements)

References 29 publications

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“…The CV plot at 0.1 mV/s scan rate shows the oxidation peak at 3.51 V and the corresponding reduction peak at 3.41 V. At higher scan speed, the oxidation potential shifts to the higher value, whereas the reduction potential shifts to the lower value with an increase in peak current, which is in accordance with the Randles–Sevcik relation. 49 In a slow voltage scan rate, the diffusion layer will grow much farther from the electrode in comparison to a fast scan which reduces the current value. The CV parameters are tabulated in Table 4.…”

Section: Resultsmentioning

confidence: 99%

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Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

et al. 2018

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Carbon-encapsulated LiFePO 4 (LFP) nanochains were prepared as a cathode material for lithium batteries by sol–gel method using citric acid as the carbon source. The prepared LFP/C material is characterized by structural, morphological, and electrochemical characterization. LFP/C shows an orthorhombic olivine structure with “ Pnma ” space group having an average particle size of 50 nm. The uniform distribution of LFP particles coated by the carbon matrix as a nanochain array has been analyzed by scanning electron microscopy and transmission electron microscopy analysis of the sample. The electrochemical performance of the LFP/C nanochain has been analyzed using galvanostatic cycling, cyclic voltammetry, and impedance analysis of the assembled batteries. The sol–gel-derived LFP/C nanochain exhibits better capacity and electrochemical reversibility in line with the literature results. The high-temperature conductivity profile of the sample has been recorded from room temperature to 473 K using impedance analysis of the sample. The transport dynamics have been analyzed using the dielectric and modulus spectra of the sample. A maximum conductivity up to 6.74 × 10 –4 S cm –1 has been obtained for the samples at higher temperature (448 K). The nucleation and growth at higher temperature act as factors to facilitate the intermediate phase existence in the LiFePO 4 sample in which the phase change that occurs above 400 K gives irreversible electrochemical changes in the LFP/C samples.

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Section: Resultsmentioning

confidence: 99%

“…The CV plots and the cycling results verify the better electrochemical property of the sol–gel-derived carbon-encapsulated LFP nanochains, which is in line with different literature reports. 48,49,53,54…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

et al. 2018

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“…Scanning electron microscopy (SEM; JEOL, Japan), powder X-ray diffraction (XRD; D8 Bruker), the Brunauer–Emmett–Teller (BET) surface area and density method (Micromeritics TriStar, USA), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy were used to determine the physical characterization of our prepared samples, and more details on instrumentation are reported in our previous reports. , Cyclic voltammetry (CV) and galvanostatic cycling were used to analyze the electrochemical properties and reaction kinetics of the materials. The lattice parameter values were evaluated using TOPAS software.…”

Section: Methodsmentioning

confidence: 99%

Effect of Initial Reactants and Reaction Temperature on Molten Salt Synthesis of CuCo₂O₄ and Its Sustainable Energy Storage Properties

Reddy

Rajesh

Adams

et al. 2016

ACS Sustainable Chem. Eng.

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We have prepared CuCo 2 O 4 using 0.5 M NaNO 3 and 0.5 M LiNO 3 molten salts at different temperatures (410 and 610 °C) in the air. This was later used as an anode material for LIBs. The morphology, structure, and electrochemical properties of the products were observed using various techniques such as scanning electron microscopy, X-ray diffraction (XRD), Brunauer−Emmett−Teller surface and density method, cyclic voltammetry, and galvanostatic cycling tests. The XRD patterns showed a minor CuO phase in addition to the major CuCo 2 O 4 phase in most of the reactant and salt combination. CuCo 2 O 4 prepared using copper sulfate and cobalt sulfate at 610 °C and copper sulfate and cobalt acetate at 410 °C showed the best performance with capacities of 848 mAh g −1 and 882 mAh g −1 and capacity retentions of 93% and 94%, respectively.

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“…Large scale and low-cost material preparation methods are critical for the higher penetration of Li-ion batteries. LiFePO 4 prepared by the carbothermal reduction method, which is suitable for large scale synthesis, showed almost no capacity fade for 400 cycles [108].…”

Section: Olivine Limpo 4 (M = Fe Co Mn and Their Mixtures)mentioning

confidence: 99%

A Review on Nanocomposite Materials for Rechargeable Li-ion Batteries

2017

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Li-ion batteries are the key enabling technology in portable electronics applications, and such batteries are also getting a foothold in mobile platforms and stationary energy storage technologies recently. To accelerate the penetration of Li-ion batteries in these markets, safety, cost, cycle life, energy density and rate capability of the Li-ion batteries should be improved. The Li-ion batteries in use today take advantage of the composite materials already. For instance, cathode, anode and separator are all composite materials. However, there is still plenty of room for advancing the Li-ion batteries by utilizing nanocomposite materials. By manipulating the Li-ion battery materials at the nanoscale, it is possible to achieve unprecedented improvement in the material properties. After presenting the current status and the operating principles of the Li-ion batteries briefly, this review discusses the recent developments in nanocomposite materials for cathode, anode, binder and separator components of the Li-ion batteries.

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Preparation, temperature dependent structural, molecular dynamics simulations studies and electrochemical properties of LiFePO4

Cited by 27 publications

References 29 publications

Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

Effect of Initial Reactants and Reaction Temperature on Molten Salt Synthesis of CuCo₂O₄ and Its Sustainable Energy Storage Properties

A Review on Nanocomposite Materials for Rechargeable Li-ion Batteries

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Preparation, temperature dependent structural, molecular dynamics simulations studies and electrochemical properties of LiFePO4

Cited by 27 publications

References 29 publications

Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles

Effect of Initial Reactants and Reaction Temperature on Molten Salt Synthesis of CuCo2O4 and Its Sustainable Energy Storage Properties

A Review on Nanocomposite Materials for Rechargeable Li-ion Batteries

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Product

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Effect of Initial Reactants and Reaction Temperature on Molten Salt Synthesis of CuCo₂O₄ and Its Sustainable Energy Storage Properties