Kinetic study on low-temperature synthesis of LiFePO4 via solid-state reaction

Chang, Hung-Ju; Chang, Chun‐Chih; Wu, Hung-Chun; Guo, Zheng-Zhao; Mo-hua, Yang; Chiang, Yao; Sheu, Hwo‐Shuenn; Wu, Nae‐Lih

doi:10.1016/j.jpowsour.2005.09.005

Cited by 42 publications

(25 citation statements)

References 18 publications

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“…The Li(Ni 1/3 Co 1/3 Mn 1/3 )O 2 or LiFePO 4 electrodes were prepared by mixing of active materials, conducting agent, and binder. Detailed procedures for the fabrication of electrodes were as described previously (Chang et al, 2006;Kang et al, 2014). The ultimately obtained slurry was casted onto Al foil.…”

Section: Fabrication Of Electrodementioning

confidence: 99%

Alternative Sample Preparation Method for Large-Area Cross-Section View Observation of Lithium Ion Battery

Kim

Jeong

Cho

et al. 2017

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Drastic development of ubiquitous devices requires more advanced batteries with high specific capacitance and high rate capability. Large-area microstructure characterization across the stacks of cathode, electrolyte and anode might reveal the origin of the instability or degradation of batteries upon cycling charge. In this study, sample preparation methods to observe the cross-section view of the electrodes for battery in SEM and several imaging tips are reviewed. For an accurate evaluation of the microstructure, ion milling which flats the surface uniformly is recommended. Pros and cons of cross-section polishing (CP) with Ar ion and focused ion beam (FIB) with Ga ion were compared. Additionally, a modified but new cross-section milling technique utilizing precision ion polishing system (PIPS) which can be an alternative method of CP is developed. This simple approach will make the researchers have more chances to prepare decent large-area cross-section electrode for batteries.

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Section: Fabrication Of Electrodementioning

confidence: 99%

Alternative Sample Preparation Method for Large-Area Cross-Section View Observation of Lithium Ion Battery

Kim

Jeong

Cho

et al. 2017

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“… Three dimensional diffusion [13]  Avrami I equation [6]  Avrami II equation [6]  Phase boundary reaction: Cylindrical symmetry.…”

Section: Bulletin Of Chemical Reaction Engineering and Catalysismentioning

confidence: 99%

“…Chang [6] analyzed the kinetic formation of LiFePO4 in solid state phase from Li(CH3COO) and FePO4 as precursor. Non-isothermal approach was carried out using hot gases as heating medium in XRD device.…”

Section: Introductionmentioning

confidence: 99%

“…Significant error in isothermal methods was often occurred when the reaction having proceeded before the temperature achieved or stabilized at the selected temperature. In non-isothermal methods, this error may be hindered [6]. Several methods to derive the formation kinetic using non-isothermal methods have been reported by numerous authors.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental were carried out to evaluate this method using CaCO3 decomposition. Blecic et al [6] solved numerically more detailed with considering concentration effect, . Many models have used to evaluate kinetic parameters of calcite and magnesite decomposition experimentally [10].…”

Section: Introductionmentioning

confidence: 99%

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Kinetic Model of LiFePO4 Formation Using Non-Isothermal Thermogravimetric Analysis

Halim

Widiyastuti

Setyawan

et al. 2014

Bull. Chem. React. Eng. Catal.

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The formation reaction of LiFePO4 from decomposition of precursors LiOH, FeSO4.7H2O and (NH4)2HPO4 with mole ratio of Li:Fe:P=1:1:1 was investigated. The experiment was carried out by thermogravimetric differential thermal analysis (TG-DTA) method using nitrogen as atmosphere at a constant heating rate to obtain kinetic constant parameters. Several heating rates were selected, viz. 5, 7, 10, 15, 17.5, 22.5 and 25 °C min -1 . Activation energy, pre-exponential factor and reaction order were taken using Kissinger method and obtained 56.086 kJ/mol, 6.95×108 min -1 , and 1.058, respectively. Based on fitting result between reaction model and experiment were obtained that reaction obeyed the three dimension diffusion model.

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Cathode Materials, Samples, Pristine, Layered, Doping, Discharge Capacity

Writer¹

2019

Lithium-Ion Batteries

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Kinetic study on low-temperature synthesis of LiFePO4 via solid-state reaction

Cited by 42 publications

References 18 publications

Alternative Sample Preparation Method for Large-Area Cross-Section View Observation of Lithium Ion Battery

Alternative Sample Preparation Method for Large-Area Cross-Section View Observation of Lithium Ion Battery

Kinetic Model of LiFePO4 Formation Using Non-Isothermal Thermogravimetric Analysis

Cathode Materials, Samples, Pristine, Layered, Doping, Discharge Capacity

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