Abstract

powders were synthesized under various conditions and the performance of the cathodes was evaluated using coin cells. The samples were characterized by X-ray diffraction, scanning electron microscope observations, Brunauer, Emmett, and Teller surface area measurements, particle-size distribution measurements, and Mössbauer spectroscopy. Ab initio calculation was used to confirm the experimental redox potentials and Mössbauer parameters. The choice of a moderate sintering temperature and a homogeneous precursor enabled nearly perfect utilization of >95% of the 170 mAh/g theoretical capacity at room temperature. There are two main obstacles to achieving optimum charge/discharge performance of (i) undesirable particle growth at and (ii) the presence of a noncrystalline residual phase at © 2001 The Electrochemical Society. All rights reserved.

Keywords

Lithium (medication)Scanning electron microscopeCathodeMaterials scienceLithium iron phosphateDiffractionElectrochemistryBattery (electricity)Particle sizeSinteringAnalytical Chemistry (journal)Particle (ecology)Phase (matter)HomogeneousCyclic voltammetryLithium batteryChemical engineeringChemistryPhysical chemistryMetallurgyElectrodeIonThermodynamicsComposite materialOpticsChromatographyOrganic chemistry

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Publication Info

Year
2001
Type
article
Volume
148
Issue
3
Pages
A224-A224
Citations
1810
Access
Closed

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Atsuo Yamada, Sai‐Cheong Chung, Koichiro Hinokuma (2001). Optimized LiFePO[sub 4] for Lithium Battery Cathodes. Journal of The Electrochemical Society , 148 (3) , A224-A224. https://doi.org/10.1149/1.1348257

Identifiers

DOI
10.1149/1.1348257